Jobs at Djinni

Your future responsibilities:

• Provide second-level application support
• Maintain and manage the support knowledge base and documentation
• Collaborate closely with cross-functional product teams, including Business Analysts, Architects, Developers, and QA Engineers
• Ensure smooth operation and support of software applications
• Manage changes, support requests, alerts, incidents, and troubleshooting activities
• Participate in incident on-call support rotations

Your skills and experience:

• 2+ years of relevant experience in application or production support
• Hands-on experience in software support
• Experience working in a hybrid cloud environment (AWS)
• Strong expertise in SQL and PL/SQL
• Experience with Git (GitHub), Grafana, Prometheus, ELK
• Knowledge of AWS services, including EC2 and S3
• Strong analytical and problem-solving skills
• Experience with Jira and Confluence
• Experience working with systems and processes in the financial or banking industry
• Proven ability to investigate and resolve issues, analyze logs, and proactively identify potential problems before they occur
• Strong attention to detail and results-oriented mindset
• Critical thinking skills and a structured approach to problem-solving

We offer what matters most to you:

• Competitive salary: we guarantee a stable income and annual bonuses for your personal contribution. Additionally, we have a referral reward program for attracting new colleagues to Raiffeisen Bank
• Social package: official employment, 28 days of paid leave, additional “maternity leave” for fathers, and financial assistance for parents upon the birth of children
• Comfortable working conditions: the possibility of a hybrid work format, offices equipped with shelters and generators, provision with modern equipment
• Wellbeing program: all employees have access to medical insurance from the first working day; consultations with a psychologist, nutritionist or lawyer; discount program for sports and shopping; family days for children and adults; massage in the office
• Learning and development: access to over 130 online educational resources; corporate training programs, online library, mentoring program
• A great team: our colleagues are a community where curiosity, talent and innovation are welcomed. We support each other, learn together and grow. You can find like-minded people in over 15 professional communities, reading or sports clubs
• Career opportunities: we encourage advancement within the bank between functions
• Innovation and technology. Infrastructure: AWS, Kubernetes, Docker, GitHub, GitHub actions, ArgoCD, Prometheus, Victoria, Vault, OpenTelemetry, ElasticSearch, Crossplain, Grafana. Languages: Java (main), Python (data), Go (infra, security), Swift (IOS), Kotlin (Andorid)Datastores: Sql-Oracle, PgSql, MsSql, Sybase. Data management: Kafka, AirFlow, Spark, Flink, we develop expertise in AI and actively integrate it into processes
• Support program for defenders: we preserve jobs and pay the average salary to mobilized people. We have a support program for veterans, and the Bank’s veteran community is developing. We are working to raise awareness among managers and teams on the issues of veterans’ return to civilian life. Raiffeisen Bank is recognized as one of the best employers for veterans (Forbes)

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Твої майбутні обов’язки: 

• Підтримка додатків другого рівня
• Управління базою знань / документацією підтримки
• Співпраця з продуктовими командами ( аналітики, архітектори, розробники, тестувальники тощо)
• Підтримка програмного забезпечення
• Управління змінами, підтримкою, алертами, інцидентами та усуненням несправностей
• Чергування по інцидентам

Твій досвід та навички:

• 2+ роки відповідного досвіду роботи в підтримці
• Підтримка програмного забезпечення
• Досвід роботи в гібридному середовищі (AWS)
• Експертні знання SQL, PL/SQL
• Досвід роботи з Git (GitHub), Grafana, Prometheus, ELK
• Знання AWS (EC2, S3)
• Аналітичні навички
• Досвід роботи з Jira та Confluence
• Досвід роботи в системі та процесах фінансової/банківської галузі
• Навички дослідження та вирішення проблем, аналіз журналів і передбачення проблем до їх виникнення
• Увага до деталей і націленість на результат. Критичний настрій і конкретний процес вирішення проблем

Пропонуємо те, що має значення саме для тебе: 

• Конкурентна заробітна плата: гарантуємо стабільний дохід та річні бонуси за твій особистий внесок. Додатково, у нас діє реферальна програма винагороди за залучення нових колег до Райффайзен Банку
• Соціальний пакет: офіційне працевлаштування, 28 днів оплачуваної відпустки, додатковий “декрет” для татусів, та матеріальна допомога для батьків при народженні дітей
• Комфортні умови праці: можливість гібридного формату роботи, офіси забезпеченні укриттями та генераторами, забезпечення сучасною технікою
• Wellbeing програма: для всіх співробітників доступні медичне страхування з першого робочого дня; консультації психолога, нутриціолога чи юриста; дисконт програми на спорт та покупки; family days для дітей та дорослих; масаж в офісі
• Навчання та розвиток: доступ до понад 130 навчальних онлайн-ресурсів; корпоративні навчальні програми, онлайн бібліотека, програма менторства
• Крута команда: наші колеги — це спільнота, де вітаються допитливість, талант та інновації. Ми підтримуємо один одного, вчимося разом та зростаємо. Ти можеш знайти однодумців у понад 15-ти професійних ком’юніті, читацькому чи спортивному клубах
• Кар’єрні можливості: ми заохочуємо просування всередині банку між функціями
• Інновації та технології. Infrastructure: AWS, Kubernetes, Docker, GitHub, GitHub actions, ArgoCD, Prometheus, Victoria, Vault, OpenTelemetry, ElasticSearch, Crossplain, Grafana. Languages: Java (main), Python (data), Go(infra,security), Swift (IOS), Kotlin (Andorid) Datastores: Sql-Oracle, PgSql, MsSql, Sybase. Data management: Kafka, AirFlow, Spark, Flink, розвиваємо експертизу в AI та активно інтегруємо в процеси
• Програма підтримки захисників і захисниць: ми зберігаємо робочі місця та виплачуємо середню заробітну плату мобілізованим. Для ветеранів та ветеранок у нас діє програма підтримки, розвивається ветеранська спільнота Банку. Ми працюємо над підвищенням обізнаності керівників та команд з питань повернення ветеранів до цивільного життя. Райффайзен Банк відзначений як один з найкращих роботодавців для ветеранів (Forbes)

🌍 Adaptiq, on behalf of AppsFlyer, is looking for a Data Engineer

🧩 About AppsFlyer:

AppsFlyer provides a SaaS marketing analytics platform that measures and optimizes marketing activities across mobile, web, CTV, PC, and console applications. AppsFlyer is known for its massive backend production. At any given moment, thousands of servers are consuming 150+ billion mobile app events, crunching our users’ data, serving requests, and communicating on a massive scale.

To maintain the universe we call AppsFlyer, we practice modern production operations with a complete self-serve CI/CD platform, a highly integrated observability stack for our micro-services, backends, and infrastructure, a culture of ownership and eagerness for quality.

The Analytics group is responsible for showing our clients the stories their data is telling. Through complex aggregation, mission-tailored analytical databases, and carefully crafted APIs we are able to provide slice-and-dice analysis in our beautiful dashboards and through the use of external integrations.

🌟 About the Role:

As a Data Engineer within the Analytics group at AppsFlyer, you will own the end-to-end journey of event data - from ingestion and processing to storage, modeling, and API delivery. 

You will design and implement data pipelines using Apache Airflow and Spark, choose and optimize analytical databases, and integrate new components in our hybrid microservices environment. You will collaborate with product managers and cross-functional teams, troubleshoot production incidents, and influence our migration toward Google Cloud and BigQuery. This role offers autonomy over feature design, real impact on a platform handling billions of events daily, and the chance to contribute to open-source projects or speak at industry forums.

📈 Key Responsibilities:

• Develop and maintain data processing pipelines using Apache Airflow, Scala Spark or PySpark.
• Select, model and optimize analytical databases for high-throughput, low-latency queries.
• Design and implement backend services and APIs for data ingestion, aggregation and client consumption.
• Monitor system performance and stability; diagnose and resolve production issues.
• Collaborate with product managers and engineers to plan and deliver complex features.
• Drive migration efforts to Google Cloud Platform, BigQuery and modern data tooling.
• Participate in on-call rotations, alerting via PagerDuty and incident response procedures.
• Document system architecture and data flows; maintain code quality and tests.

💻 Required Competence and Skills:

• 3+ years of software development experience with a focus on data engineering.
• Practical experience with Apache Spark (Scala or PySpark) and Apache Airflow.
• Experience building and maintaining high-throughput, low-latency distributed data systems.
• Strong SQL skills and experience with data modeling for analytics workloads.
• Familiarity with JVM languages (Scala, Java, Clojure) or Python for backend development.
• Experience with cloud platforms - preferably GCP - and data warehouses such as BigQuery.
• Proven ownership of production systems and on-call incident management.
• Excellent communication skills in English for distributed teamwork.
• B.Sc. in Computer Science or equivalent practical experience.

➕ Nice to Have:

• Production experience with large-scale databases and ETL tooling.
• Hands-on background in Go or Clojure backend services.
• Experience with production-grade BigQuery ETL and data pipelines.
• Contribution to open-source projects or public speaking at meetups/conferences.
• An “AI mindset” - familiarity with tools like GitHub Copilot and emerging AI workflows.

🚀 Benefits Package includes:

• Health Insurance
• Paid Unlimited Vacation Days + all national holidays + additional recharge days
• Meals Reimbursement
• Sport Reimbursement
• Breakfast in the office
• Mental health program
• Team building, happy hours, and other team activities
• Paid sick days
• Snacks, fruits & ice-cold beer
• All new team members are provided with a brand-new Mac laptop with 2 monitors and a Starter package

Meet the YozmaTech

YozmaTech isn’t just another tech company - we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster. We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact. Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family - you’ll feel right at home with us.

Our client is a leading provider of comprehensive software solutions and support services tailored for arts education centers worldwide. Our modular platform streamlines operations by integrating class scheduling, memberships, facility management, events, ticketing, and more into a single, customizable system. By centralizing essential data, we empower organizations to focus on their mission, enhance patron engagement, and increase membership retention.

Our commitment to the arts community drives us to deliver innovative solutions that meet the unique needs of arts education

Key Requirements:
🔹 5+ years of experience as a Full-Stack Developer;
🔹 Strong proficiency in Vue.js (frontend);
🔹 Experience working with Node.js (backend);
🔹 Experience working with SQL, including complex query optimization;
🔹 Ability to work with legacy Java systems and collaborate with a Java developer for support;
🔹 Familiarity with Vercel, Digital Ocean, and Remo Hosting for deployment and infrastructure;
🔹 Experience creating custom SQL reports for clients;
🔹 Strong problem-solving skills and the ability to work with minimal documentation and testing;
🔹 Excellent communication skills to interact with clients and understand their needs;
🔹 English – Upper-Intermediate or higher.

Will be plus:
🔹 Experience with API proxy development;
🔹 Background in database performance tuning;
🔹 Prior experience working with legacy codebases.

What you will do:
🔹 Develop and maintain the Node.js backend, ensuring stability and performance;
🔹 Work with Vue.js to enhance the front-end functionality and user experience;
🔹 Support and optimize a legacy Java-based system, collaborating with a separate developer;
🔹 Analyze and work with a non-standard SQL database, creating custom reports and queries;
🔹 Deploy and manage applications using Vercel (for frontend), Digital Ocean (for API proxy), and Remo Hosting (backend for clients);
🔹 Communicate effectively with clients to gather requirements, suggest improvements, and implement changes;
🔹 Work with legacy code, addressing issues without comprehensive documentation or testing.

Interview stages:
🔹 HR Interview;
🔹 Pro-Interview;
🔹 Technical Interview;
🔹 Final Interview;
🔹 References;
🔹 Offer.

Why Join Us?
At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products - and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.

From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining - and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

About the Company

We are an international iGaming affiliate project developing and scaling SEO-driven websites across Tier 1 and Tier 2 markets.

Our current focus is Poland and Hungary, with plans to expand into additional markets such as Greece and New Zealand.

We operate with a lean team and a highly automated approach. Our model is based on launching and testing multiple SEO projects using expired domains, parasite SEO, one-page websites, rapid migrations, and gray-hat promotion methods.

About the Role

We are looking for a hands-on SEO Specialist who can independently manage the full lifecycle of multiple affiliate projects.

This is not a traditional Team Lead position. There is no large team of junior specialists to delegate routine work to. You will personally work with domains, keywords, websites, content, links, rankings, and performance data.

The role is suitable for a strong Middle or Senior SEO Specialist who is comfortable working autonomously, testing hypotheses quickly, and taking direct responsibility for project results.

Key Responsibilities

• Manage multiple SEO projects from domain selection to traffic and monetisation.
• Research, evaluate, and acquire expired domains.
• Analyse competitors, SERPs, keywords, niches, and growth opportunities.
• Launch and develop one-page affiliate websites and parasite SEO projects.
• Prepare domains and keyword sets for automated website deployment.
• Work closely with an internal developer responsible for website automation.
• Review launched websites, including content, structure, HTML tags, markup, and technical implementation.
• Make basic changes directly through WordPress, CMS platforms, Cloudflare, or website admin panels.
• Monitor rankings, indexing, traffic, backlink profiles, conversions, and monetisation.
• Develop and execute link-building strategies.
• Purchase, place, and monitor links.
• Identify underperforming websites and decide whether to improve, migrate, or replace them.
• Test SEO hypotheses across multiple websites and GEOs.
• Scale approaches that demonstrate positive results.
• Maintain clear reporting on project launches, rankings, tests, and outcomes.
• Use AI tools to improve content, fix basic HTML issues, and support day-to-day SEO tasks.

• Contribute to improving internal workflows, automation, and SEO processes.

   

Key Requirements

• Strong Middle or Senior-level SEO experience.
• Hands-on experience with expired domains, including research, evaluation, acquisition, launch, and development.
• Practical understanding of gray-hat or black-hat SEO methods.
• Experience with parasite SEO, mass-site strategies, website migrations, or similar approaches.
• Strong understanding of the full SEO cycle:
  • keyword research;
  • competitor and SERP analysis;
  • website structure;
  • content;
  • technical SEO;
  • link building;
  • indexing;
  • performance analysis.
• Ability to manage several websites and experiments simultaneously.
• Experience working in highly competitive GEOs and complex SERPs.
• Practical knowledge of WordPress or similar CMS platforms.
• Basic understanding of Cloudflare, HTML, page markup, tags, and technical website checks.
• Ability to clearly assign tasks to developers and verify the completed work.
• Experience with SEO tools such as Ahrefs, Screaming Frog, Google Search Console, Google Analytics, Semrush, Similarweb, Serpstat, or equivalent platforms.
• Ability to analyse SEO performance and make decisions based on rankings, traffic, conversions, and commercial outcomes.
• Strong personal organisation and ability to work independently.
• Proactive approach and willingness to propose and test new solutions.

• Comfortable working in an environment where many experiments may fail before a scalable approach is identified.

   

Relevant Industry Experience

Experience within iGaming or affiliate marketing is highly desirable but not mandatory.

We are also open to candidates from industries that use similar SEO methods, including:

• dating;
• pharma;
• finance;
• other competitive affiliate or gray-hat niches.

A strong practical background in expired domains, parasite SEO, mass-site launches, and gray-hat promotion methods is more important than experience in one specific industry.

Nice to Have

• Experience with casino or betting affiliate websites.
• Experience across Tier 1 and Tier 2 markets.
• Experience working with large sports or news websites containing affiliate landing pages.
• Experience developing internal SEO tools or automation.
• Basic scripting or technical troubleshooting skills.
• Experience using ChatGPT, Claude, or similar AI tools for content and technical tasks.

• Understanding of affiliate monetisation, conversion rates, and project profitability.

   

What Success Looks Like

During the first months, success will be assessed based on:

• the number of relevant domains identified and acquired;
• the number of websites successfully launched;
• the speed and quality of project execution;
• the number of websites indexed and gaining rankings;
• the quality of technical and content reviews;
• the number of SEO hypotheses tested;
• the ability to independently manage a large volume of projects;
• continuous improvement based on previous results.

We do not expect every project or experiment to succeed. We value speed, consistency, practical conclusions, and the ability to improve the approach over time.

Working Conditions

• Fully remote.
• Lean and highly autonomous working environment.
• Communication primarily through Telegram.
• Minimal meetings and no unnecessary bureaucracy.

• Close cooperation with the SEO lead and internal developer.

   

Hiring Process

1. Talentin Interview.
2. Short practical task requiring approximately 15 minutes.
3. Interview with the SEO Lead.
4. Possible final conversation with the project owner.
5. Offer.

Responsibilities

• Customer acquisition.
• Participation in the process of systemic lead generation and sales activities of the company;
• Support and processing on new and existing sales channels and sales sources;
• Participation in the process of pre-sales and sales activities;
• Lead validation, requirements gathering
• Clarification of the client’s requirements (problems) and conducting sales activities (closing deals);
• Conclusion of transactions and support of the process of entering the project/client;
• Creation of commercial offers;
• Account management out upselling and cross-selling events for new and existing company clients.
• Work on a clear track of Sales plans , sales metrix and KPIs: leads worked, calls, offers, offer value sent, deals won, new clients, revenue.

Requirements:

• 3+ years of experience in IT sales;
• Proven experience in closing deals with the ability to present
• Proven technology knowledge (service, service lines, product)
• High level of English (Upper-intermediate);
• Experience in closing deals on outsourcing and outstaffing models
• Experience in selling projects/solutions of web development and eCommerce;
• Experience in selling solutions for eCommerce (web, mobile);
• Experience with B2B and B2C segments.

Will Be a Plus:

• Successful experience of sales activities in a particular region or country;
• Experience in selling solutions and services based on CMS Magento, WordPress;
• Successful sales experience in several channels;
• The ability to design and implement a sales funnel using various sales tools.
   

We Offer:

• In-house tech talks & knowledge sharing;
• Remote work;
• Ability to participate in RoadShows and conferences ;
• Flexible and negotiable working schedule;
• Paid sick leaves, vacations, days off;
• Growth plan and bonuses for additional responsibilities/activities;
• Fair compensation that scales with your skills

Our Customer:

Our customer is an international technology company developing a security-focused enterprise platform used by organizations with high requirements for device protection and user authentication. As part of its product ecosystem, the company is building a desktop application for macOS that integrates deeply with operating system capabilities to deliver secure authentication, device management, and identity-related functionality.

Your Tasks:

• Design, develop, and maintain low-level macOS application components that interact with system frameworks and operating system services.
• Build and enhance integrations with macOS security, authentication, and credential management capabilities.
• Ensure compatibility with new macOS releases by evaluating platform changes, API updates, and system behavior across OS versions.
• Research and implement modern Apple platform capabilities related to identity, authentication, and device security.
• Develop reliable background services, inter-process communication mechanisms, and secure application workflows.
• Improve software quality through secure build and release processes, diagnostics, logging, and issue investigation.
• Troubleshoot complex platform-specific issues and collaborate with cross-functional teams to deliver robust solutions.
• Contribute to technical design discussions and continuously improve the architecture of macOS platform components.

Required Experience and Skills:

• 8+ years of commercial software development experience.
• At least 4 years of hands-on experience developing applications for macOS with a strong focus on system-level functionality.
• Strong proficiency with Swift and/or Objective-C.
• Along with practical experience using C/C++.
• Solid experience working with macOS system frameworks, background services, inter-process communication, security mechanisms,
• and application permissions.
• Good understanding of Unix/Linux operating system concepts, including processes, permissions, IPC, and system services.
• Experience building security-sensitive software, including secure data storage, authentication flows, and cryptographic principles.
• Strong debugging and troubleshooting skills, particularly for platform-level issues and complex system interactions.
• Ability to independently drive technical investigations and deliver solutions for complex engineering challenges.
• Bachelor’s degree in Computer Science, Engineering, Mathematics, or a related technical field.
• English level Upper-Intermediate or higher.

Would Be a Plus:

• Experience with identity and access management technologies or enterprise authentication solutions.
• Familiarity with modern authentication standards and security protocols.
• Experience integrating applications with enterprise device management solutions.
• Knowledge of macOS endpoint security technologies or other advanced Apple platform capabilities.
• Previous experience working on enterprise desktop software deployed at scale.
• Exposure to low-level operating system development or performance optimization.

PayDo, a leading Electronic Money Institution (EMI) authorised by the FCA in the UK, FINTRAC in Canada, and MFSA in Malta, operates in 140+ countries and over 25 industries. Offering multicurrency IBANs, merchant solutions, mass payment options, acquiring, open banking, PayDo provides premium and convenient payment services. With all features available through one platform and contract, PayDo is a preferred solution for modern online businesses.

We are looking for a detail-oriented and analytical Technical Writer. In this role, you'll transform complex business and technical requirements into clear, structured documentation that drives product development and supports internal teams. You'll work closely with stakeholders to document product requirements, eliminate ambiguity and ensure every feature is thoroughly documented. The ideal candidate is naturally curious, enjoys diving into technical details and believes that high-quality documentation is essential to building great products

Responsibilities:

• Document business and technical requirements for existing and new product functionality
• Analyse, clarify and document functional and non-functional requirements for IT team
• Create and maintain product specifications, user stories, acceptance criteria, process documentation and technical guides
• Maintain and continuously improve internal product documentation
• Collaborate closely with Product, IT and Stakeholders throughout the product development lifecycle
• Identify documentation gaps and inconsistencies
• Ensure documentation remains accurate and up to date as products evolve

• Contribute to documentation standards, processes and best practices 

   

Requirements:

• 2+ years of experience as a Technical Writer, Business Analyst, Product Analyst or in a similar role within a fintech environment: EMI, PSPs, Banks or SaaS companies
• Proven experience analysing and documenting business and technical requirements
• Exceptional attention to detail and the ability to organise complex information into clear, structured documentation
• Experience writing functional specifications, user stories, acceptance criteria, process flows and technical documentation
• Hands-on experience with API documentation and testing tools
• Experience working with Jira and Confluence
• Strong communication skills with the confidence to challenge unclear or incomplete requirements

• B2+ level of English

   

Nice to have:

• Understanding of payment processing, transaction lifecycles, KYB and AML processes
• Familiarity with AI tools and their application to documentation workflows

• Basic understanding of software development processes

   

We work in a result-driven culture. You will fit in if you:

• Own your work with no excuses.
• Take initiative and act before being told.
• Deliver results that make a real impact.

• Solve problems quickly with practical solutions.

   

What we offer:

• Annual Learning & Development Budget – invest in your growth with dedicated funds for courses, training, and certifications.
• Regular Performance Reviews Based on KPIs – for your professional growth.
• Transparent career growth – with opportunities to achieve Lead roles within 1 year, Head roles in 2 years, and even C-level within 4 years, based on exceptional performance.

• Innovation Financial Rewards – share your ideas through our PayDo Ideas Hub and earn extra bonuses.

   

Become part of a global team redefining FinTech. Your expertise, passion, and ideas will shape the future of payments with PayDo!

Quantum is a global technology partner delivering high-end software products that address real-world problems. 

We advance emerging technologies for outside-the-box solutions. We focus on Machine Learning, Computer Vision, Deep Learning, GIS, MLOps, Blockchain, and more.

Here at Quantum, we are dedicated to creating state-of-the-art solutions that effectively address the pressing issues faced by businesses and the world. To date, our team of exceptional people has already helped many organisations globally attain technological leadership.

We constantly discover new ways to solve never-ending business challenges by adopting new technologies, even when there isn't yet a best practice. If you share our passion for problem-solving and making an impact, join us and enjoy getting to know our wealth of experience!

About the position

Quantum is expanding its team in Central Europe and is looking for talented Data Science Engineers to join us. Our projects span multiple domains, including data analysis, fintech, computer vision, image processing, edge-device solutions, Large Language Models (LLMs), and classical Machine Learning applications. We build custom Data Science solutions for clients across various industries, combining strong engineering practices with a research-driven mindset.

Joining Quantum means becoming part of a team that values solid technical fundamentals, continuous learning, and practical problem-solving. You'll collaborate on impactful products, work with cutting-edge technologies, and contribute to projects that turn complex ideas into real-world solutions.

Must have skills:

• 3+ years of commercial DS/ML experience
• Solid foundation in linear algebra, statistics, and probability
• Strong Python, including NumPy, Pandas, and scikit-learn
• Hands-on experience with PyTorch (or TensorFlow)
• Deep experience in at least one of: 
  • Computer Vision (modern DL: detection, segmentation, classification - ViT, YOLO, SAM); 
  • LLMs / NLP (fine-tuning, RAG, prompt engineering, embeddings, evaluation); 
  • Classical ML at scale (tabular, time series, recommender systems)
• Working knowledge of Transformers and attention; familiarity with CNNs
• Experience deploying models to production (Docker, REST/gRPC serving, basic monitoring)
• Experience with at least one cloud platform (AWS, GCP, or Azure)
• Clean code and Git workflow
• Experience with SQL
• Upper-Intermediate English (B2+) - you'll communicate directly with clients

Nice to have skills:

• Cross-domain exposure: if your main strength is CV, some LLM exposure is a plus (and vice versa)
• Edge deployment: TensorRT, OpenVINO, ONNX, quantisation, model distillation, mobile/embedded inference
• LLM tooling: LangChain/LlamaIndex, vector databases (pgvector, Pinecone, Weaviate, Qdrant), LoRA/QLoRA fine-tuning, agentic frameworks
• MLOps & model monitoring: MLflow, DVC, Weights & Biases, CI/CD for ML
• Classical CV with OpenCV (still relevant for hybrid pipelines and edge work)
• Ability to read recent papers and implement methods in new domains
• Experience working with external clients
• Participation in Kaggle competitions

Your tasks will include:

• Own full-cycle DS projects: scoping with the client, data prep, modelling, evaluation, deployment
• Build solutions across CV, LLM/NLP, and classical ML depending on the project pipeline
• Deploy models to production - cloud, edge, or hybrid, depending on client needs
• Read recent research and adapt methods to client problems
• Communicate technical decisions and trade-offs directly to clients

We offer:

• Delivering high-end software projects that address real-world problems
• Surrounding experts who are ready to move forward professionally
• Professional growth plan and team leader support
• Taking ownership of R&D and socially significant projects
• Participation in worldwide tech conferences and competitions
• Taking part in regular educational activities
• Being a part of a multicultural company with a fun and lighthearted atmosphere
• Working from anywhere with flexible working hours
• Paid vacation and sick leave days

Join Quantum and take a step toward your data-driven future.

We’re looking for an experienced Performance Marketing Lead to take ownership of one of our fastest-growing performance marketing initiatives.

You’ll lead the development and scaling of our Native Advertising capabilities across Taboola, Microsoft Ads, LiveIntent, and Newsbreak, working alongside Creative, CRO, and Analytics teams to build a high-performing media buying organization.

This isn’t a role for someone who simply wants to manage campaigns.

It’s an opportunity to build a platform.

You’ll initially lead a team of three Media Buyers while helping us recruit and develop additional specialists. As the business grows, you’ll play a key role in shaping the future of our Native Advertising organization, with a clear opportunity to grow into Head of Native Pod.

If you’re passionate about experimentation, building teams, and solving difficult performance marketing challenges at scale, we’d love to talk.

Key Responsibilities:

Lead the Native Advertising Function

• Own the overall performance and strategic direction of our Native Advertising channels, including Taboola, Microsoft Ads Native, LiveIntent, and Newsbreak.
• Develop platform-specific strategies that support sustainable client growth while maintaining profitability and operational efficiency.
• Continuously identify new opportunities to improve campaign performance, testing velocity, and scalability.

Build and Develop a High-Performing Team

• Lead, mentor, and support an initial team of three Media Buyers.
• Recruit and onboard additional Media Buyers as the team expands.
• Create an environment focused on accountability, collaboration, continuous learning, and high performance.
• Provide regular coaching, campaign reviews, and performance feedback to help team members grow professionally.

Drive Performance Excellence

• Ensure campaigns are executed and optimized according to clearly defined performance standards.
• Monitor key business metrics, including lead volume and quality, cost efficiency, and profitability.
• Support Media Buyers in identifying scaling opportunities, troubleshooting performance issues, and making data-driven optimization decisions.
• Maintain a strong understanding of platform updates, industry trends, and competitive activity.

Own Testing Strategy

• Develop structured testing frameworks across targeting, bidding, placements, creatives, and campaign optimization.
• Promote a culture of experimentation where decisions are driven by data rather than assumptions.
• Ensure testing results are documented, shared, and incorporated into operational best practices.

Collaborate Across Functions

• Partner closely with Design, CRO, Analytics, and Operations teams to improve campaign quality and execution speed.
• Translate business objectives into clear testing priorities and cross-functional initiatives.
• Help improve workflows that enable faster experimentation and more efficient campaign launches.

Build Scalable Systems

• Establish platform standards, documentation, playbooks, and operational processes that enable consistent execution across the team.
• Identify operational bottlenecks and implement solutions that improve quality, efficiency, and scalability.
• Contribute to the long-term development of our performance marketing organization by continuously improving how the team operates.

Required

• 7+ years of hands-on experience in Performance Marketing or Media Buying.
• Previous experience managing, mentoring, or leading Media Buyers.
• Experience with one or more Native Advertising platforms, including Taboola, Outbrain, Microsoft Ads, LiveIntent, Newsbreak, MGID, or MediaGo.
• Experience managing campaigns targeting North American markets.
• Strong analytical skills and a data-driven approach to decision making.
• Proven experience optimizing campaigns at scale.
• Excellent communication and organizational skills.
• Fluent English.

Preferred

• Experience in lead generation and performance marketing.
• Experience working in agency or high-growth performance marketing environments.
• Familiarity with AI-powered marketing tools and workflow automation.

We are looking for a Head of Creative Marketing to join United Tech and take full ownership of the creative strategy behind our paid traffic performance. This role is your chance to make a direct impact on high-growth products in a highly competitive niche (US/UK/CA/AU markets), where every idea and decision truly matters. You will be responsible for developing and executing a creative marketing strategy, leading the full production process from concept to final asset, and building a strong creative team from the ground up. Expect the freedom to drive bold initiatives, make independent decisions, and influence key business results,  all in a fast-paced, bureaucracy-free environment

About the product:  We operate in the fast-growing social networking space that’s transforming how people connect online in a live-streaming segment that is growing by over 21% annually. We build products that combine streaming, video content, interactivity, and communities, with a focus on the global market. One of our flagship products is an ad-free international streaming platform where users engage in real time through video chats and live broadcasts. But that’s just part of our ecosystem, we’re also developing other products within the niche, each with its own mechanics, audience, and monetization model. Our team tackles complex analytics, AI solutions, personalization, and the scaling of high-load systems. If you’re passionate about shaping the future of social networking, we’d love to have you on board!

In this role, you will

• Deliver ad creative concepts and iterations that align with key KPIs for multiple products
• Support and improve the creative production pipeline in close collaboration with User Acquisition Managers
• Manage and grow the Creative Marketing team, including Designers and Creative Marketing Lead
• Plan and coordinate team workflows to ensure timely and effective output
• Track and report on the performance of creatives and team members
• Set up and maintain efficient creative marketing processes
• Develop and refine a testing methodology for ad creatives to improve performance and scalability
• Motivate the team through regular meetings, feedback sessions, and performance checkpoints

It’s all about you

• 1+ year of experience as Head of Creative Marketing Department
• Basic understanding of User Acquisition and Performance Marketing
• Proven experience in generating and developing creative concepts
• Solid workload management and deadline adherence
• Hands-on experience with creative testing approaches
• Strong leadership and team motivation skills
• Strategic thinking with focus on achieving product KPIs
• Excellent communication and presentation skills
• English level B2+
• Team-oriented mindset and strong communication skills

Would be a plus: 

• Experience with video chat or live-streaming products

What we offer

Care and support: 

• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine
   

Comfortable working environment:

• Work from our Kyiv hub or remotely with a flexible schedule 
• Workspace rental reimbursement in other cities and abroad
• Modern equipment or depreciation of your own tools
   

Investment in your future:

• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events
   

Hiring process

• Intro call
• Technical Interview
• Test Task (optional)
• Final Interview
• Reference check
• Offer

Join a team building a centralized Snowflake data platform designed to consolidate large volumes of operational, financial, and external data into a single, scalable foundation. In this role, you'll design and deliver high-throughput data pipelines, develop reliable data models with DBT, and help shape a modern platform architecture focused on performance, maintainability, and long-term scalability.

Required for this role

• Strong hands-on experience with Snowflake, including data modeling, performance tuning, and cost optimization
• Proven experience using DBT for data transformation and data modeling
• Experience building and maintaining large-scale data pipelines for high-volume data ingestion and processing
• Strong SQL skills and experience working with distributed data systems
• Experience working with structured and semi-structured data
• Good understanding of Medallion architecture and modern data platform design principles
• Experience with workflow orchestration tools such as Airflow or similar
• Ability to work effectively in environments with evolving requirements while managing multiple parallel delivery streams
• Strong ownership mindset with effective communication skills for collaborating with technical and business stakeholders

Your responsibilities

• Design and build end-to-end data pipelines to ingest and process data from internal operational, financial, commercial, and third-party data sources
• Develop business-ready datasets using DBT transformations aligned with the Gold layer
• Design and optimize Snowflake data models following the Bronze / Silver / Gold Medallion architecture
• Deliver scalable, high-performance, cost-efficient, and maintainable data pipelines
• Collaborate with stakeholders to continuously refine solutions as business requirements evolve
• Ensure data quality and platform reliability through data validation, pipeline monitoring, and data freshness checks
• Contribute to a modular, loosely coupled data platform architecture designed for flexibility and reduced vendor dependency
• Work closely with distributed engineering teams to deliver multiple pipelines within ambitious delivery timelines

What you get

Your time off

• 18 paid vacation days and 10 paid sick days annually
• 10 Ukrainian public holidays
• Maternity and paternity leaves
• Marriage and Parenthood Package
• Additional leave for major life events
• Sabbatical leave opportunities

Learning & growth

• Sombra University workshops and internal learning programs
• Tech Communities and knowledge sharing sessions
• Language courses and workshops
• Mentorship opportunities

Health & well-being

• Sports compensation or health insurance coverage
• Participation in races and marathons
• Corporate doctor (telemedicine)
• Well-being initiatives and workshops

And even more

• Company-provided technical equipment
• PE administration and tax support
• Internal referral program
• IT Club loyalty program
• Company events and volunteering initiatives
   

Headway Inc is a global tech company, revolutionizing lifelong learning by creating digital products for over 170 million users worldwide. Our mission is to help people grow. We’re proud to be ranked 4th among the World’s Top EdTech Сompanies by TIME magazine. We believe lifelong learning should be accessible, personalized, and impactful to each individual. That’s how we change the world and why we bring together exceptional minds.

The core of our achievements is our team. We believe in people and shared values SELECT. That’s why, I, Lisa Rudyk, Head of User Acquisition at Headway by Headway Inc, am looking for a User Acquisition Specialist to run growth across our biggest channels and help shape what User Acquisition becomes next.

The challenge you're stepping into

User Acquisition at Headway runs on millions of dollars in monthly budgets and direct partnerships with Meta, Google, and TikTok. You'll work primarily across Meta and TikTok, with the freedom to follow the data into new channels when it points there.

A lot of what we do isn't written down yet. Parts of the playbook are still being built, things change quickly, and there isn't always an obvious next step waiting for you. That's exactly the part we're most excited about and the part that decides whether this role fits you. If an open problem makes you want to dig in and find the answer, you'll feel at home here.

There's also real technical depth around UA at Headway – Signals Engineering, AI and automation, and advanced analytics. You don't need all of it on day one. It's the kind of work you'll have room to grow into, and a big part of what makes this role technically rich.

Why this role matters

User Acquisition at Headway is one of the teams that drives where the product goes. You'll work closely with creative marketing and product marketing on what we test, what we say, and what we learn from it so your analysis moves real decisions.

The product and team you will be working with

Headway is our flagship app, offering summaries of nonfiction bestsellers, daily insights, and gamified challenges. Headway is the world’s most downloaded book summary app and has been featured as App of the Day in over 30 countries, including the US, the UK, and Canada.

You'll join a UA team of 6 – people who care deeply about the work, support each other through the hard days, and celebrate wins together. We're also part of Headway Inc's broader marketing community of 100+ people across all products, where you'll always find someone to think through a challenge with, learn from, or be inspired by.

This job is perfect for you if you

• Want to run real budget at scale on a market-leading product with 55M users with the infrastructure and partnerships to match from day one.
• Are energized by ambiguity and motivated by finding solutions when the process isn't defined yet.
• Want your work to shape the product – UA insights here drive real decisions.
• Enjoy working cross-functionally with creative and product marketing on what to test next.

• Are curious about the technical side of growth – Signals Engineering, automation, advanced analytics – and want a place to grow into it.

   

What you will do

• Run and scale user acquisition across Meta and TikTok, with room to test new channels.
• Analyze performance data, find causal relationships, and turn them into decisions and process improvements.
• Collaborate with creative and product marketing on creative testing and cross-functional growth initiatives.
• Bring insights from acquisition back to the product – your data informs what gets built.

• Experiment with automation and AI tools to make campaign work faster and sharper.

   

What you need to join us

• 1+ years in User Acquisition, with hands-on experience in Meta Ads or TikTok Ads.
• Strong analytical skills – the ability to find causal relationships in data.
• Comfort working in a fast-changing environment where not everything is defined.
• Strong communication and collaboration skills.

• Nice-to-have: hands-on experience with automation or AI tools in a marketing context, exposure to Signals Engineering.

   

What do we offer:

• Work within an ambitious team on a socially impactful education product.
• An office with a reliable shelter, generators, satellite internet, and other amenities.
• Access to our corporate knowledge base and professional communities.
• Personal development plan.
• Compensation for English language learning, external training, and courses.
• Medical insurance and full sick leave compensation.
• Sports activities: running, yoga, boxing, and more.
• Corporate holidays: we go on a week-paid holiday to rest and recharge twice a year.

• Supporting initiatives that help Ukraine. Find out more about our projects here.

   

Working schedule

This is a full-time position with a hybrid format, and our preference is for candidates based in Kyiv.

Are you interested?
Send your CV!

Bulls Media is looking to hire a strong BI developer and data analyst.

The role involves both data analytic and technical skills : gathering data , developing tools and dashboards, evaluating data and sharing findings that affect business decisions. 

Responsibilities:

• Working with different company departments and setting business requirements for BI tools
• Translating business requirements into technical ones
• Suggesting technical options to meet the requirements and creating an BI architecture. Providing time estimation
• Leading and executing BI software development, deployment, and maintenance: 
• Creating Power BI reports based on client requirements 
• Taking data from different data sources : databases, internal and external API, google sheets and more
• Developing different visualization levels and dashboards
• Maintaining and optimizing existing reports
• Ensuring data correctness
• Testing reports of other BI developers
• Creating technical documentation for BI tools
• Evaluating data, collating findings relevant to the business, and sharing them in a manner that can bring about an effective change in a business:
• Breaking down key business data: gather, clean, and analyze data
• Interpreting the data: Find patterns or see areas in the data that signal a potential for improvement in business practices

• Sharing findings:visualizing data in graphs and charts, recommendations to improve or grow the business based on their findings

   

Requirements:

• At least 2 year experience in a BI developer & data Analyst role
• Experience with PowerBI including a good knowledge of DAX
• Deep knowledge of SQL Databases and SQL script optimisation
• Good knowledge of excel / Google sheet (formulas)
• Experience with Python
• Non relational database - advantage
• Advanced analysis and problem solving skills
• Attention to detail
• The ability to work both as a team player and independently
• Ability to multitask in a fast-paced environment
• Self learning abilities
• Excellent communication skills with ability to effectively interface with technical and nontechnical staff at all organizational levels
• Fluent in English

Headway Inc is a global tech company, revolutionizing lifelong learning by creating digital products for over 150 million users worldwide. Our mission is to help people grow. We’re proud to be ranked 4th among the World’s Top EdTech Сompanies by TIME magazine. We believe lifelong learning should be accessible, personalized, and impactful to each individual. That’s how we change the world and why we bring together exceptional minds.

The core of our achievements is our team. We believe in people and shared values SELECT. That’s why, together with Yuliia Sydoruk, User Acquisition Lead at Skillsta by Headway Inc, we’re looking for a User Acquisition Specialist to join our team of superstars transforming the EdTech industry.

What product and team will you be working on?

Skillsta is a digital product that helps users across the globe improve their soft skills through short, interactive lessons based on real-life situations. The app ranked among the top 20 in the Education category on the US App Store.

You'll be part of Headway Inc's broader marketing community – 100+ people across all products – where you'll always find someone to think through a challenge with, learn from, or be inspired by.

This job is perfect for you if you:

• Are excited to see the direct impact of your work reflected in both financial and product metrics at Skillsta.
• Want to scale the product to millions of downloads and making it even better for users around the world.
• Enjoy the freedom to test bold hypotheses, with the potential to fully own a channel or user acquisition flow in the future.
• Thrive in a fast-paced, startup-like environment where things move quickly – and so will your growth.
• Love working with a performance-driven team of people who are fully committed to results.
• Are eager to grow in a data-driven environment where experiments and analytics guide every decision.

• Value strong partnerships – we work closely with Google, Meta, and TikTok.

   

What you’ll do:

• Launch and scale ad campaigns to promote the product on our core platform — Meta.
• Analyze data, metrics, and test outcomes to make data-driven decisions.
• Build and test user behavior hypotheses using performance marketing and CRO tools, and collaborate closely with the Product Marketing Team.
• Monitor and analyze EdTech market trends.

• Collaborate with the creative production team: suggest new ad creatives and provide feedback on their performance.

   

You’ll be a great fit if you:

• Have some experience in marketing, user acquisition, FMCG, consulting — or you’re just starting out and eager to grow fast.
• Know your way around numbers, can use them to make smart decisions, and uncover causal relationships.
• Love to research, ask “why?”, and figure things out from the ground up.
• Have a willingness to quickly learn new tools (Amplitude, AppsFlyer, Tableau, ad platforms).
• Communicate confidently in English (Upper-Intermediate+);

• Share our SELECT values and enjoy working as part of a collaborative, driven team.

   

What do we offer:

• Work within an ambitious team on a socially impactful education product.
• An office with a reliable shelter, generators, satellite internet, and other amenities.
• Access to our corporate knowledge base and professional communities.
• Personal development plan.
• Compensation for English language learning, external training, and courses.
• Medical insurance and full sick leave compensation.
• Sports activities: running, yoga, boxing, and more.
• Corporate holidays: we go on a week-paid holiday to rest and recharge twice a year.

• Supporting initiatives that help Ukraine. 

   

Working schedule

This is a full-time position with a hybrid remote option. It means that you can decide for yourself: whether you want to work from the office, remotely, or combine these options.

Are you interested?

Send your CV!

We are building one of the most powerful live-streaming platforms, already connecting 400K+ monthly active users through live events, interactive video chats, and real-time community experiences. Our mission is bold: bring joy, fight loneliness, and deliver safe, ad-free entertainment that keeps people coming back.
This is a complex, fast-moving space, and we love it that way! So, you will join a passionate, expert team tackling everything from scaling AI-powered recommendations to launching high-impact, data-driven features that boost monetization and engagement. Every idea counts here, and every release reaches a massive global audience.
We are now expanding into Arab countries and Europe, enhancing content quality, and rolling out new features to keep users hooked. We are among the Top 5 streaming products in the US and rank in the Top 10 worldwide. Our next milestone: break into the global Top 5, and we are moving fast to make it happen.

About the role: In this role, you will strengthen our product analytics by bringing senior-level expertise in statistical analysis, retention analytics, and experimentation. From your first weeks, you’ll dive into our product, data pipelines, and key metrics, delivering deep insights into retention and monetization, and independently running A/B tests to shape decisions at scale. Your input will help refine analytical processes and frameworks, directly influencing product strategy. With the chance to grow horizontally through diverse tasks, and to be involved in many of the company’s key processes, you’ll see the tangible impact of your work across the business.

In this role, you will

• Drive deep-dive analyses of user behaviour, retention, and monetization
• Independently design, monitor, and evaluate A/B tests and experiments
• Build, maintain, and improve analytical frameworks, dashboards, and reporting systems to ensure clarity and efficiency across the team
• Collaborate closely with product managers to define success metrics, uncover growth opportunities, and shape the product strategy
• Identify gaps and inefficiencies in current processes and elevate the team’s analytical capabilities by proposing smart improvements
• Ensure all product research meets the highest standards of statistical rigour, reliability, and scalability

It’s all about you

• Experience in product or marketing analytics and working cross-functionally with product, marketing, and engineering teams
• Advanced SQL skills and a solid foundation in statistics, including hypothesis testing, causal inference, regression, and retention/survival analysis
• Proven track record in product analytics, ideally in transactional or subscription-based business models, with experience in designing and evaluating A/B tests
• Ownership mindset, strong communication skills and structural thinking that will allow you to  translate complex data into actionable business recommendations for both technical and non-technical stakeholders
   

Would be a plus

• Experience with GBQ, Python and R for analytics
• Familiarity with cohort analysis, LTV modelling, and churn prediction
• Regular usage of AI tools like ChatGPT, Claude AI, Gemini, or similar to support your work

What we offer

Care and support: 

• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• Up to 10 additional days off for public holidays
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine
   

Comfortable working environment:

• Work from our Kyiv hub or remotely with a flexible schedule 
• Workspace rental reimbursement in other cities and abroad
• Modern equipment or depreciation of your own tools
   

Investment in your future:

• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events
   

Hiring process

• Intro call
• Technical interview
• Reference check
• Offer