Jobs at Djinni

We are seeking an experienced Senior/Middle Data Scientist with a passion for large language models (LLMs) and cutting-edge AI research. In this role, you will focus on designing and prototyping data preparation pipelines, collaborating closely with data engineers to transform your prototypes into scalable production pipelines and actively develop model training pipelines with other talented data scientists. Your work will directly shape the quality and capabilities of our models by ensuring we feed them the highest-quality, most relevant data possible. The datasets you build directly determine model capability, safety, and cost, raising downstream task accuracy, reducing training waste, and accelerating time-to-market for product teams.

What you will do

• Design, prototype, and validate data preparation and transformation steps for LLM training datasets, including cleaning and normalization of text, filtering of toxic content, de-duplication, de-noising, detection and deletion of personal data, etc.
• Formation of specific SFT/RLHF datasets from existing data, including data augmentation/labeling with LLM as teacher.
• Analyze large-scale raw text, code, and multimodal data sources for quality, coverage, and relevance.
• Develop heuristics, filtering rules, and cleaning techniques to maximize training data effectiveness.
• Collaborate with data engineers to hand over prototypes for automation and scaling.
• Research and develop best practices and novel techniques in LLM training pipelines.
• Monitor and evaluate data quality impact on model performance through experiments and benchmarks.
• Research and implement best practices in large-scale dataset creation for AI/ML models.
• Document methodologies and share insights with internal teams.

Qualifications and experience needed

Education & Experience:

• 3+ years of experience in Data Science or Machine Learning, preferably with a focus on NLP.
• Proven experience in data preprocessing, cleaning, and feature engineering for large-scale datasets of unstructured data (text, code, documents, etc.).
• An advanced degree (Master’s or PhD) in Computer Science, Computational Linguistics, Machine Learning, or a related field is highly preferred.

NLP Expertise:

• Good knowledge of natural language processing techniques and algorithms.
• Hands-on experience with modern NLP approaches, including embedding models, semantic search, text classification, sequence tagging (NER), transformers/LLMs, RAGs.
• Familiarity with LLM training and fine-tuning techniques, and data requirements.

ML & Programming Skills:

• Proficiency in Python and common data science and NLP libraries (pandas, NumPy, scikit-learn, spaCy, NLTK, langdetect, fasttext).
• Strong experience with deep learning frameworks such as PyTorch or TensorFlow for building NLP models.
• Ability to write efficient, clean code and debug complex model issues.

Data & Analytics:

• Solid understanding of data analytics and statistics.
• Experience in experimental design, A/B testing, and statistical hypothesis testing to evaluate model performance.
• Comfortable working with large datasets, writing complex SQL queries, and using data visualization to inform decisions.

Deployment & Tools:

• Experience deploying machine learning models in production (e.g., using REST APIs or batch pipelines) and integrating with real-world applications.
• Familiarity with MLOps concepts and tools (version control for models/data, CI/CD for ML).
• Experience with cloud platforms (AWS, GCP, or Azure) and big data technologies (Spark, Hadoop, Ray, Dask) for scaling data processing or model training is a plus.

Communication & Personality:

• Experience working in a collaborative, cross-functional environment.
• Strong communication skills to convey complex ML results to non-technical stakeholders and to document methodologies.
• Ability to rapidly prototype and iterate on ideas

A plus would be

Advanced NLP/ML Techniques:

• Familiarity with evaluation metrics for language models (perplexity, BLEU, ROUGE, etc.) and with techniques for model optimization (quantization, knowledge distillation) to improve efficiency.
• Understanding of FineWeb2 or a similar processing pipeline approach

Research & Community:

• Publications in NLP/ML conferences or contributions to open-source NLP projects.
• Active participation in the AI community or demonstrated continuous learning (e.g., Kaggle competitions, research collaborations)

Domain & Language Knowledge:

• Familiarity with the Ukrainian language and context.
• Understanding of cultural and linguistic nuances that could inform model training and evaluation in a Ukrainian context.
• Knowledge of Ukrainian text sources and data sets, or experience with multilingual data processing, can be an advantage given our project’s focus.

MLOps & Infrastructure:

• Hands-on experience with containerization (Docker) and orchestration (Kubernetes) for ML, as well as ML workflow tools (MLflow, Airflow).
• Experience in working alongside MLOps engineers to streamline the deployment and monitoring of NLP models.

Problem-Solving:

• Innovative mindset with the ability to approach open-ended AI problems creatively.
• Comfort in a fast-paced R&D environment where you can adapt to new challenges, propose solutions, and drive them to implementation.

What we offer

• Office or remote — it’s up to you. You can work from anywhere, and we will arrange your workplace.
• Remote onboarding.
• Performance bonuses.
• We train employees with the opportunity to learn through the company’s library, internal resources, and programs from partners.
• Health and life insurance.
• Wellbeing program and corporate psychologist.
• Reimbursement of expenses for Kyivstar mobile communication.

DOOR3 is seeking Senior SharePoint Engineers to contribute to the development of enterprise-grade SharePoint intranet solutions. You will work on building custom site experiences, dynamic webparts, and integrating third-party services into scalable digital workplaces based on SharePoint and a specialized customization layer on top of it.

Location: remote from Europe.

Allocation: could be full-time or part-time, depending on your availability.

Essential Job Duties:

• Work directly on a Web application development team to produce best in class production using Front-End Technologies
• Develop within MVC frameworks such as ReactJS
• Administration of SharePoint sites
• Drive key strategic ideas regarding page performance
• Working directly with our UX designers, back-end developers and clients to implement cutting-edge experiences across a variety of presentation technologies.
• Working flexibly in an Agile development environment: must be able to keep pace with the development team and adapt to changing requirements

Required Skills and Experiences:

• Strong Experience with SharePoint framework (SPFx)
• Experience with Fluent UI
• Working knowledge of HTML and CSS, including preprocessors like SASS
• Experience with Javascript Task Runners (Gulp)
• Basic understanding of ReactJS and TypeScript
• Should be well versed with code optimization techniques
• Excellent written and verbal communication skills

Preferred Qualifications:

• Experience working with JS frameworks like VueJS, Handlebars
• Experience working with PnP JS
• Experience leading a team or mentoring
• Passion for writing clean, efficient code
• Ability to manage changing priorities, solve unfamiliar problems, and meet deadlines

You Are

• A problem-solver who thrives in collaborative and evolving environments
• Comfortable working independently or as part of a distributed team, mentoring other engineers
• Able to communicate effectively with technical and non-technical stakeholders
• Passionate about clean, maintainable, and well-documented code
• At least Intermediate/B2 English across all four skills

Join DOOR3 to help us build elegant, extensible digital workplaces that transform how teams connect and collaborate. If you're excited to deliver high-quality SharePoint solutions using cutting-edge tools, we want to hear from you.

About the role

We are building a revolutionary system at the frontier of technology and AI.

As a Software Engineer, you won’t just write code — you will shape the future of how apps are built. You’ll be part of the early execution engine—shipping core capabilities, refining the experience, and elevating reliability. Expect tight loops, clear ownership, and visible impact. You will engage directly with first clients, adapt the platform to their needs, and set the stage for the next generation of software creation.

What we’re looking for

We want someone who doesn’t just “fit the role” but defines it:

• Open-minded explorer — ready to try bold ideas, new approaches, and cutting-edge tools.
• Hacker mindset & problem solver — able to connect the dots across complex systems and find elegant solutions.
• Analytical & resilient — thrives in debugging intricate, interconnected architectures.
• Startup speed enthusiast — comfortable hacking fast, shipping early, learning from feedback, and polishing later.
• Experienced in Cursor or Claude Code.
• Passionate about vibe-coding  — turning AI into your engineering team-mate.
• Natural leader — with the drive to inspire and guide people.

Why join us?

• Be among the first engineers driving a bold, world-changing vision.
• Work at the bleeding edge of technology and AI, where experimentation is not just allowed but expected.
• Direct influence on product.
• A chance to build something that reshapes how things get done in today’s world.
• A team that values curiosity, creativity, and the pure joy of hacking together the future.

This isn’t just another job. This is your chance to engineer the future of software itself.

Technical stack

Core technologies:

• TypeScript, React.js, Next.js
• ClickHouse, PostgreSQL, Redis
• Docker / Kubernetes
• Kafka
• Supabase, Inngest, Posthog

Nice to have:

• Vue.js
• Python
• Go
• Ruby

Hiring Process

Stage 1: Interview with HR (1h).
Stage 2: Technical assignment.
Stage 3: Interview with VP of Engineering.
Stage 4: Interview with the team.

What we offer for your success

• Very warm and friendly working environment and flexible working schedule.
• 20 days off + paid national holidays, and 12 sick days paid by the company per year.
• Medical insurance, and health protection programs (with COVID-19 and dental coverage).
• Continuous professional development and growth opportunities.

About the Role:
 

We are looking for an experienced Senior QA Automation Engineer to drive the design, development, and implementation of automated testing solutions for our digital commerce and payments platforms. The ideal candidate has strong technical expertise, hands-on experience with automation frameworks, and a passion for delivering high-quality software.commerce and payments pl

⚠️ Please note: we are considering candidates located outside of Ukraine.

Key Responsibilities:

• Design and maintain scalable test automation frameworks (Selenium, Cypress, Playwright, etc.)
• Develop and execute automated tests for UI, API, performance, and regression
• Integrate tests into CI/CD pipelines (Jenkins, GitHub Actions, Azure DevOps)
• Collaborate with cross-functional teams to ensure quality across the SDLC
• Analyze results, manage defects, and provide detailed reporting on test coverage
• Evaluate and introduce new tools/technologies to improve QA efficiency

Requirements:

• 5+ years in QA automation, including 2+ years in a senior/lead role
• Strong coding skills in Java, Python, JavaScript, or similar
• Hands-on experience with automation tools (Selenium, Cypress, Appium, Postman)
• Familiarity with REST APIs, microservices, cloud platforms (AWS, Azure, GCP), Docker/Kubernetes
• Strong knowledge of Agile/Scrum practices

Nice to Have:

• Experience in e-commerce, digital payments, or fintech
• Knowledge of security & compliance testing (e.g., PCI-DSS)
• Performance testing tools (JMeter, Gatling)
• ISTQB or similar certification

Soft Skills:

• Strong problem-solving and analytical mindset
• Excellent communication and teamwork skills
• Ability to work independently and lead initiatives

What you will do:

— Provide high-level support to premium players via LiveChat and email;
— Handle complex requests related to payments, bonuses, technical issues, and in-game situations;
— Personally assist key players, helping them navigate the platform;
— Monitor player activity history, engagement, account settings, and VIP program status;
— Escalate issues to internal teams (payments, tech support, backend).

What we expect:

— 1+ years in Customer or VIP Support;
— Excellent communication skills: attention to detail, empathy, and clear, professional language;
— Stress resistance and the ability to work with demanding clients;
— English proficiency at B2 level or higher;
— Confident use of CRM and ticketing systems; strong technical literacy;

What we offer:

— Remote work, 5/2 schedule;
— Payments in USDT (white crypto);
— Fixed salary + performance-based bonuses (KPI) after onboarding period;
— Access to Gemini Advanced;
— Training and support from an experienced international team;
— Opportunity for growth within the project.

We're looking for a Creative Strategist with strong domain expertise in mobile gaming and digital performance creative to lead the strategic direction of our ad creative efforts. This person will serve as a trusted advisor across teams, owning the strategic thinking, research, ideation, and delivery planning that powers our best-performing ad content.

You’ll collaborate closely with Product, Creative Teams, and Customer Success to shape our high-performing video ads strategy.

Key Responsibilities

Strategic Ownership & Cross-Team Collaboration

• Act as a creative and domain expert—advise on best practices, drive creative solutions, and lead innovation.
• Work closely with Product, CS, and Creative Leads to define strategies, priorities, and development plans
• Provide creative and strategic input for PRDs (Product Requirement Documents), driven by insights and analytics

Market Research & Insights

• Conduct ongoing market research and competitive analysis to stay on top of trends
• Translate insights into actionable concepts and ideas across multiple game genres and formats
• Deliver trend analysis and domain insights to inform internal decisions and innovation

Performance-Focused Execution & Guidance

• Approve and guide initial deliveries—ensuring strong strategy alignment and meeting client requirements
• Evaluate concepts based on performance potential and data, rather than subjective preferences
• Approach every challenge and opportunity—with creative solutions and a proactive mindset and ownership
• Lead ideation sessions for new creative directions and campaigns, driven by objective thinking and aligned with data and performance goals
• Manage multiple projects and priorities with autonomy, ownership, and clarity

Qualifications

• 5–7 years of proven experience in creative strategy or user acquisition within the mobile gaming or creative marketing performance
• Deep domain knowledge of mobile gaming and creative content for performance marketing
• Proficiency in English—you’ll write, present, and collaborate globally
• Ability to juggle multiple projects and drive each forward with strategic clarity
• Strong communication and collaboration skills—you work well with Creative, Product, and CS
• A confident, self-sufficient thinker and doer—you take ownership and move things forward

• A true problem-solver with the creative intuition and fluent in data analysis

   

The Role

• A dedicated expert in mobile gaming ad strategy, with deep knowledge of game mechanics, player psychology, and performance marketing data.
• A strategic thinker who bridges insights across Product, Creative, and Customer Success.
• An independent advisor whose sole focus is to reflect what’s needed based on data—rather than speculations or subjective opinions.
• A single point of ownership for data-driven creative direction, ensuring all concepts are on-brand and optimized for performance.
• Drives cross-team alignment on ad strategy, trend insights, and campaign roadmaps, especially for new games.
• Translates performance data into the creative process: leads ideation sessions, reviews first videos, and keeps the ad pipeline cutting-edge and player-focused.
• Advises on creative tools, skills, or assets based on new game needs or market trends.

• Supports existing games with all of the above when there are clear struggles—primary focus will be on onboarding new games.

   

Responsibilities

Strategy & Ideation

• Provide insights to support PRD creation and sync with Product teams to align on features and dev goals.
• Build strategic roadmaps for new games—from first deliveries through the first month—to ensure impactful onboarding.
• Lead ideation and brainstorming sessions to generate fresh, audience-tailored ad concepts.
• Review and approve first video ads, ensuring they align with strategic and performance goals.
• Ideate the first concept rounds, then guide Creative Leads on future ideations and support the creative direction of initial deliveries.

Market Trends & Insights

• Analyze key metrics (CTR, CPI, ROAS) and recommend optimizations or new test directions based on performance.
• Share insights with stakeholders (CS and Creative) to empower better decision-making. Act as a trusted advisor and knowledge hub.
• Ensure new game strategies and roadmaps are data-driven—not assumption-based.
• Share lessons learned and best practices across the Astra team.
• Advise clients strategically when high-level input is needed.

Improvement & Innovation

• Continuously seek out tools or techniques that can improve video quality and efficiency.
• Creative strategies and decision-making will be tied to KPIs to ensure ongoing growth and accountability.
• Identify negative trends in performance and build a strategic plan to reverse them.

Main Efforts

• New games
• Bad performance
• Categories / genres

Actual Work Overview

• Definitions For Development - Identify key game features from Sales and research, and define them for the PRD.
• Roadmaps Collaboration - Help the CS team create and update ad rollout plan for each game, from the first videos to long-term performance strategy.
• Creative Strategy Sessions - Lead frequent strategic thinking sessions with team leads to align on creative direction, campaign goals, and industry-level market trends.
• Ideation Optimization -
  • Ideation Knowledge Hub - Serve as the go-to expert on ideation techniques, advising Creative Leads and CS on best practices.
  • Cross-Project Learning - Capture lessons learned from each campaign and share insights to continually refine our brainstorming processes.

• New Games Strategy & Approval -

  For the first three deliveries: performance alignment video, 1st and 2nd deliveries:

  • Define the creative approach in collaboration with stakeholders - CS.
  • Ideate concepts in collaboration with stakeholders - Team Leads.
  • Participate in the approval process for all three deliveries.
  • Participate in performance alignment sessions with the client to ensure strategic and creative alignment.
• Analyze underperforming creatives - review samples, identify issues, and provide recommendations.
• Creative Insights - Continuously research market trends and competitor strategies to suggest ideas for creative improvement.
• Act as an expert in client sessions - Present new creative approaches and clearly explain the rationale behind them.
• Explore Capabilities - Continuously search for new concepts, strategies, and ideas to strengthen our exploration and innovation efforts.
• Cross-Functional Documentation - Maintain a centralized playbook of best practices, ideation techniques, and creative templates to support the Astra team and improve efficiency
• Advice on Tool & Innovation- Suggest new tools, techniques, or AI hacks to speed up production and raise quality.

Raiffeisen Bank is the largest Ukrainian bank with foreign capital. For over 30 years, we have been shaping and developing the banking system of our country.

At Raiffeisen, more than 5,500 employees work together, including one of the largest product IT teams, consisting of over 800 professionals. Every day, we collaborate to ensure that more than 2.7 million of our clients receive quality service, use the bank’s products and services, and develop their businesses because we are #Together_with_Ukraine.

Your responsibilities:

• Coordination, collection and analysis of Run the Bank Budget of IT departments
• Coordination of IT Contracts
• Coordination of IT payments
• Accounting for intangible assets

Preferred qualifications:

• Experience in IT, accounting and finance from 2 years
• Higher education
• Working with Microsoft Office: Excel (Power Query understanding of working principles, practical experience) — will be an advantage, PowerPoint, SharePoint (advanced level) — mandatory
• MS PowerBi (basic level) — will be an advantage
• Global Oebs, Oracle, Vchasno, CMT software — mandatory
• Jira/Confluence — will be an advantage

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 program with rewards for bringing in new colleagues to Raiffeisen Bank
• Social package: official employment, 28 days of paid leave, additional paternity leave, and financial assistance for parents with newborns
• Comfortable working conditions: possibility of a hybrid work format, offices equipped with shelters and generators, modern equipment. Classification: PUBLIC
• Wellbeing program: all employees have access to medical insurance from the first working day; consultations with a psychologist, nutritionist, or lawyer; discount programs for sports and purchases; family days for children and adults; in-office massages
• Training and development: access to over 130 online training resources; corporate training programs in CX, Data, IT Security, Leadership, Agile. Corporate library and English lessons. Great team: our colleagues form a community where curiosity, talent, and innovation are welcome. We support each other, learn together, and grow. You can find like-minded individuals in over 15 professional communities, reading clubs, or sports clubs
• Career opportunities: we encourage advancement within the bank across functions
• Innovations and technologies: 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 (Android). Data stores: Sql-Oracle, PgSql, MsSql, Sybase. Data management: Kafka, AirFlow, Spark, Flink
• Support program for defenders: we maintain jobs and pay average wages to mobilized individuals. For veterans, we have a support program and develop the Bank’s veterans community. We work on increasing awareness among leaders and teams about the return of veterans to civilian life. Raiffeisen Bank has been recognized as one of the best employers for veterans by Forbes

Why Raiffeisen Bank?

• Our main value is people, and we support and recognize them, educate them and involve them in changes. Join Raif’s team because for us YOU matter!
• One of the largest lenders to the economy and agricultural business among private banks
• Recognized as the best employer by EY, Forbes, Randstad, Franklin Covey, and Delo.UA
• The largest humanitarian aid donor among banks (Ukrainian Red Cross, UNITED24, Superhumans, СМІЛИВІ)
• One of the largest IT product teams among the country’s banks. One of the largest taxpayers in Ukraine; 6.6 billion UAH were paid in taxes in 2023

Opportunities for Everyone:

• Rife is guided by principles that focus on people and their development, with 5,500 employees and more than 2.7 million customers at the center of attention
• We support the principles of diversity, equality and inclusiveness
• We are open to hiring veterans and people with disabilities and are ready to adapt the work environment to your special needs
• We cooperate with students and older people, creating conditions for growth at any career stage

Want to learn more? — Follow us on social media:

Facebook, Instagram, LinkedIn

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Райффайзен Банк — найбільший український банк з іноземним капіталом. Більше 30 років ми створюємо та вибудовуємо банківську систему нашої держави.

У Райфі працює понад 5 500 співробітників, серед них одна із найбільших продуктових ІТ-команд, що налічує понад 800 фахівців. Щодня пліч-о-пліч ми працюємо, щоб більш ніж 2,7 мільйона наших клієнтів могли отримати якісне обслуговування, користуватися продуктами і сервісами банку, розвивати бізнес, адже ми #Разом_з_Україною. 

Твої майбутні обов’язки: 

• Координація, збір та аналіз Run the Bank Бюджету ІТ підрозділів
• Координація ІТ Договорів
• Координація ІТ оплат
• Облік нематеріальних активів

Твій досвід та навички:

• Досвід роботи у сфері IT, обліку та фінансів від 2-х років
• Вища освіта
• Робота з Microsoft Office: Excel (Power Query розуміння принципів роботи, практичний досвід) — буде перевагою, PowerPoint, SharePoint (просунутий рівень) — обовʼязково
• MS PowerBi (базовий рівень) — буде перевагою
• ПЗ Global Oebs, Oracle, Vchasno, CMT — обовʼязково
• Jira/Confluence — буде перевагою

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 з CX, Data, IT Security, Лідерства, Agile. Корпоративна бібліотека та уроки англійської.
• 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.
• 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).

Чому Райффайзен Банк? 

• Наша головна цінність — люди і ми даємо їм підтримку і визнання, навчаємо, залучаємо до змін. Приєднуйся до команди Райфу, адже для нас ТИ маєш значення! 
• Один із найбільших кредиторів економіки та аграрного бізнесу серед приватних банків 
• Визнаний найкращим працедавцем за версіями EY, Forbes, Randstad, Franklin Covey, Delo.UA 
• Найбільший донор гуманітарної допомогисеред банків (Червоний Хрест України, UNITED24, Superhumans, СМІЛИВІ) 
• Один із найбільших платників податків в Україні, за 2023 рік було сплачено 6,6 млрд гривень

Можливості для всіх: 

• Райф керується принципами, що фокусуються на людині та її розвитку, у центрі уваги 5 500 співробітників та понад 2,7 мільйони клієнтів  
• Підтримуємо принципи різноманіття, рівності та інклюзивності
• Ми відкриті до найму ветеранів і людей з інвалідністю та готові адаптувати робоче середовище під ваші особливі потреби
• Співпрацюємо зі студентами та людьми старшого віку, створюючи умови для зростання на будь-якому етапі кар’єри

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We are building an API-first loan management and servicing platform to enable scalable, compliant, and flexible financial products. Our client is expanding their US-based team and looking for a Senior Python Engineer to join the extended development team, contributing to new functionality and the evolution of the SaaS platform.

Tech Stack: Python 3.11, Flask, Gunicorn, Go, PostgreSQL 14, Redis 6.x

Responsibilities

• Develop and implement new features for the loan management system
• Lead the development of a loan management SaaS platform
• Build robust, scalable infrastructure for new services and products
• Collaborate with product and design teams to evaluate trade-offs and scalability concerns
• Work closely with legal and compliance stakeholders to ensure product compliance

Requirements

• 5+ years of backend software development experience (preferably in Agile environments and SaaS products)
• 2+ years of hands-on experience with Python
• Strong expertise in API design and development
• Experience building microservices architectures
• Ability to write clean, reliable, and maintainable code with automated testing
• Previous startup experience or working in small, cross-functional teams

Nice-to-Have

• Background in FinTech (strong plus)
• Experience with DevOps practices
• Familiarity with GCP
• Knowledge of Go

Dataforest is looking for a DevOps Engineer eager to grow professionally and work on international projects. You will support and improve infrastructure, set up CI/CD processes, and collaborate closely with the client team.

     Requirements:

• 2+ years of experience as a DevOps;
• Experience with SQL and database configuration;
• Solid understanding of Linux/Unix;
• Hands-on experience with Python (deployments, scripting, automation);
• Experience with version control systems (Git, Bitbucket);
• Basic knowledge of AWS Cloud;
• Familiarity with CI/CD processes (Github Actions, Jenkins or similar);
• Understanding of containerization (Docker, Kubernetes);
• Basic knowledge of Nginx;

• English — Intermediate or higher.

   

  Nice to have:

• Experience with Airflow;

• Experience with ETL pipelines.

   

  Key responsibilities:

• Cover the DevOps needs of a dev team;
• Support existing environments in both on-prem and cloud;
• Detect existing product infrastructure issues and vulnerabilities;
• Build ETL procedures;

• Implement best practices and standards for development.

   

  We offer:

• Great networking opportunities with international clients, challenging tasks;
• Building interesting projects from scratch using new technologies;
• Personal and professional development opportunities;
• Competitive salary fixed in USD;
• Paid vacation and sick leaves;
• Flexible work schedule;
• Friendly working environment with minimal hierarchy;
• Comfortable, spacious, and well-equipped office in the city center;
• Team building activities, corporate events.

About us:
Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently fostered one of the largest Data Science & AI communities in Europe.

About the client:
Our client is an IT company that develops technological solutions and products to help companies reach their full potential and meet the needs of their users. The team comprises over 600 specialists in IT and Digital, with solid expertise in various technology stacks necessary for creating complex solutions.

About the role:
We are looking for an experienced Senior/Middle Data Scientist with a passion for Large Language Models (LLMs) and cutting-edge AI research. In this role, you will focus on designing and prototyping data preparation pipelines, collaborating closely with data engineers to transform your prototypes into scalable production pipelines, and actively developing model training pipelines with other talented data scientists. Your work will directly shape the quality and capabilities of the models by ensuring we feed them the highest-quality, most relevant data possible.

Requirements:
Education & Experience:
- 3+ years of experience in Data Science or Machine Learning, preferably with a focus on NLP.
- Proven experience in data preprocessing, cleaning, and feature engineering for large-scale datasets of unstructured data (text, code, documents, etc.).
- Advanced degree (Master’s or PhD) in Computer Science, Computational Linguistics, Machine Learning, or a related field is highly preferred.
NLP Expertise:
- Good knowledge of natural language processing techniques and algorithms.
- Hands-on experience with modern NLP approaches, including embedding models, semantic search, text classification, sequence tagging (NER), transformers/LLMs, RAGs.
- Familiarity with LLM training and fine-tuning techniques.
ML & Programming Skills:
- Proficiency in Python and common data science and NLP libraries (pandas, NumPy, scikit-learn, spaCy, NLTK, langdetect, fasttext).
- Strong experience with deep learning frameworks such as PyTorch or TensorFlow for building NLP models.
- Ability to write efficient, clean code and debug complex model issues.
Data & Analytics:
- Solid understanding of data analytics and statistics.
- Experience in experimental design, A/B testing, and statistical hypothesis testing to evaluate model performance.
- Comfortable working with large datasets, writing complex SQL queries, and using data visualization to inform decisions.
Deployment & Tools:
- Experience deploying machine learning models in production (e.g., using REST APIs or batch pipelines) and integrating with real-world applications.
- Familiarity with MLOps concepts and tools (version control for models/data, CI/CD for ML).
- Experience with cloud platforms (AWS, GCP, or Azure) and big data technologies (Spark, Hadoop, Ray, Dask) for scaling data processing or model training.
Communication & Personality:
- Experience working in a collaborative, cross-functional environment.
- Strong communication skills to convey complex ML results to non-technical stakeholders and to document methodologies clearly.
- Ability to rapidly prototype and iterate on ideas

Nice to have:
Advanced NLP/ML Techniques:
- Familiarity with evaluation metrics for language models (perplexity, BLEU, ROUGE, etc.) and with techniques for model optimization (quantization, knowledge distillation) to improve efficiency.
- Understanding of FineWeb2 or similar processing pipelines approach.
Research & Community:
- Publications in NLP/ML conferences or contributions to open-source NLP projects.
- Active participation in the AI community or demonstrated continuous learning (e.g., Kaggle competitions, research collaborations) indicating a passion for staying at the forefront of the field.
Domain & Language Knowledge:
- Familiarity with the Ukrainian language and context.
- Understanding of cultural and linguistic nuances that could inform model training and evaluation in a Ukrainian context.
- Knowledge of Ukrainian text sources and data sets, or experience with multilingual data processing, can be an advantage given the project’s focus.
MLOps & Infrastructure:
- Hands-on experience with containerization (Docker) and orchestration (Kubernetes) for ML, as well as ML workflow tools (MLflow, Airflow).
- Experience in working alongside MLOps engineers to streamline the deployment and monitoring of NLP models.
Problem-Solving:
- Innovative mindset with the ability to approach open-ended AI problems creatively.
- Comfort in a fast-paced R&D environment where you can adapt to new challenges, propose solutions, and drive them to implementation.

Responsibilities:
- Design, prototype, and validate data preparation and transformation steps for LLM training datasets, including cleaning and normalization of text, filtering of toxic content, de-duplication, de-noising, detection and deletion of personal data, etc.
- Formation of specific SFT/RLHF datasets from existing data, including data augmentation/labeling with LLM as teacher.
- Analyze large-scale raw text, code, and multimodal data sources for quality, coverage, and relevance.
- Develop heuristics, filtering rules, and cleaning techniques to maximize training data effectiveness.
- Collaborate with data engineers to hand over prototypes for automation and scaling.
- Research and develop best practices and novel techniques in LLM training pipelines.
- Monitor and evaluate data quality impact on model performance through experiments and benchmarks.
- Research and implement best practices in large-scale dataset creation for AI/ML models.
- Document methodologies and share insights with internal teams.

The company offers:
- Competitive salary.
- Equity options in a fast-growing AI company.
- Remote-friendly work culture.
- Opportunity to shape a product at the intersection of AI and human productivity.
- Work with a passionate, senior team building cutting-edge tech for real-world business use.

Requirements:
- 1+ years of experience in affiliate marketing or performance media buying (Gambling vertical is a must);
- Proven experience working with paid traffic sources, especially PPC (Google Ads) and Facebook Ads;
- Experience expanding and closing strategic deals with gambling brands;
- Knowledge of the main sources and specifics of various types of traffic and their effectiveness;
- Experience working with different geos, EU must;
- Familiarity with various pricing models: CPA, CPL, RevShare, Hybrid, Agency (Budget);
- Experience working both from the affiliate side and the brand/operator side is a strong advantage
- Upper Intermediate level of English;
- Accountable, initiative, proactive, strong communication skills,
- Atrong negotiation skills, problem solving skills, strategic thinking, analytical skills,
- Ability to endear himself/herself; presentability;

Responsibilities:
- Proactively seeks and onboards new partners and brands;
- Analyzes market competitors on a regular basis (websites, keywords, etc.) and suggests a plan of necessary actions to stay competitive;
- Negotiates mutually beneficial deals with partners and cultivate strong, lasting relationships;
- Generates and presents comprehensive reports with key strategic data to senior stakeholders;
- Implements initiatives to boost traffics growth, explore new growth opportunities, and enhance ROI;
- Continuously optimizes existing partnerships;
- Analyzes results and quality of traffic for further optimization of cooperation model with brands/partners;
- Develops and negotiates contracts, integrating their requirements into business operations;
- Coordinates closely with the Integration Manager and technical team to ensure smooth setup and tracking accuracy;
- Monitors campaign performance and rotates offers based on signals from analysts and market trends to maximize ROI and user engagement
- Represents the company at events and exhibitions;
- Ensures that weekly/monthly/quarterly KPIs are met and achieved;
- Mentors less experienced colleagues on demand;
- Maintains and shares professional knowledge within the team.

We Offer:
- Work in a professional team with transparent processes
- possibility of remote work;
- paid vacation — 21 working days;
- annual salary review;
- opportunity for career growth within the company.

Genesis is a full-cycle international product ІТ-company. More than 3000 people in 8 countries create products for 400 million users monthly. We are the most high-loaded company in the country and one of the largest partners of Facebook, Google, Snapchat, and Apple in the CEE region.

Our mission is to transform Ukraine from an outsourcing state into a product state by building the largest product portfolio.

Our team is looking for an ambitious Senior PPC Manager to run large-scale advertising for a futuristic, fast-growing AI web application that has already successfully launched at Tier-1.

You will have the opportunity to lead the Google Ads team and create an effective traffic acquisition strategy from scratch, ensure positive profitability, and develop a system to scale quickly and sustainably to multi-million dollar budgets. 

About you:

• At least 4 years of experience as a PPC Specialist with excellent knowledge of Google Ads.
• Experience in dating or adult niches is must.
• Successful experience in running search campaigns, optimizing search traffic.
• Experience in launching and optimizing advertising campaigns for mobile applications (App campaigns).
• Understanding of the levers of influence on marketing metrics: CTR, CPC, CPA.
• English is not lower than Upper-Intermediate.
• Strong analytical skills and ability to make data-driven decisions.

What you will do:

• Launching and optimizing Google Ads campaigns and scaling them to achieve KPIs.
• Searching for growth points and optimizing advertising campaigns, including working with semantics and creating ads.
• Creating analytical reports on the performance of the advertising platform and product.
• Development and implementation of a product promotion strategy on the Google platform.
• Analysis of user behavior patterns from different traffic channels and interaction with the product.
• Generating and testing hypotheses, finding new approaches to traffic optimization.
• Launching and managing mobile app advertising campaigns to drive installs, engagement, and growth.

What we offer:

• Services of a corporate doctor, and after the probationary period — health insurance in Ukraine.
• 20 working days of paid vacation per year, unlimited sick leave.
• All equipment necessary for work.
• Access to top-tier courses, corporate online meetups, lectures, a comprehensive library, and 11 professional internal communities for career development.
• Comfortable offices in Kyiv’s Podil district with secure shelters. In the offices, you don’t have to worry about the routine: breakfasts, lunches, lots of snacks and fruits, lounges, massages and other benefits of office life are waiting for you 🙂

Join us!

At ScrumLaunch, our client relationships are our top priority. Almost every new project we’ve accepted has come organically through client referrals. We’re looking for a dedicated and personable account manager to maintain our clients’ accounts and serve as our main point of contact.

Our ideal candidate will have a passion for helping others and a drive to provide exceptional customer service.

Objectives of this Role

- Act as the main point of contact in all matters relating to client concerns and needs;
- Build and strengthen client relationships to achieve long-term partnerships;
- Maintain accurate client records, keeping track of any contract updates and renewals;
- Work with sales, project management, engineering and executive teams to ensure KPIs are being met and client milestones are being reached;
- Develop a thorough understanding of our clients products, ScrumLaunch’s service offerings, and internal processes to better upsell clients and build a referral network.

Daily and Weekly Responsibilities

- Take inquiries and requests from customers and address their needs;
- Stay on top of accounts, making sure they’re receiving services that are within their budget and meeting their needs;
- Meet regularly with other members of the team to discuss progress and find new ways to improve business;
- Generate progress reports to give to clients and higher-ups within the organization;
- Manage the hourly output for services delivered to ensure contractual obligations are being met;
- Identify upsell, cross-sell, and renewal opportunities and communicate with the sales team regularly.

Skills and Qualifications

- 5+ years of professional experience in a customer service role (account management, sales, business developer in IT sphere);
- Ability to manage several projects simultaneously;
- Strong written and communication skills in English (Advanced level);
- Good attention to detail and organizational skills;
- Effective time management skills;
- Multitasking, critical thinking, adaptability, problem-solving skills;
- Work with EST timezone.
 

We offer
 

- Opportunities to work on diverse and challenging projects;
- A supportive and collaborative team environment;
- 12 vacation days per year;
- 5 sick days per year;
- English classes;
- Access to psychologist support for mental well-being.

About the job

Who We Are
A startup in the field of minimally invasive endovascular decision support is seeking an experienced Engineering Manager to establish and lead a high-performing software and algorithm team. This role involves nurturing & building a multi-disciplinary team, managing external subcontractors, and driving the development of scalable, high-performance AI-powered solutions for medical technologies.

What You’ll Do

• Design and implement user-friendly, responsive, and scalable real-time front-end applications that integrate seamlessly with Python-based AI models and network services.
• Collaborate with product managers, designers, and back-end engineers to translate requirements into elegant, efficient, and maintainable code, following best practices of software engineering.
• Write technical documentation.
• Drive technical decisions on application architecture, frameworks, and tooling for front-end development within a C# and Python environment.
• Optimize application performance, accessibility, and cross-browser compatibility to ensure a best-in-class user experience.
• Contribute to continuous improvement in development processes, including CI/CD, unit testing, production deployment, and automation.

• Stay current with emerging front-end technologies and frameworks, and evaluate their potential adoption within the team.

   

Minimal Requirements

• 5+ years of front-end C# development – must.
• Extensive knowledge of building GUI with WinForms – must.
• Experience with building Windows Services – must.
• Extensive knowledge of multi-threading / multi-processing / interprocess communication – must.
• Extensive knowledge with message brokers like RabbitMQ – must.
• Excellent knowledge of software design patterns – must.
• Experience with unit testing – must.
• Experience with maintenance and deployment in C# and Python environments, working with artifactory like Nexus / NuGet – must.
• Experience of building Windows installers like MSI – must.

• High level of English (verbal & written) – must.

   

Additional (Advantage) Requirements

• Experience with REST.
• Experience with PyTorch / TensorFlow / scikit-image / matplotlib.
• Experience with Python.
• Experience with cross-platform applications.
• Experience with deployment, including CI/CD.
• Bachelor’s degree in Software Engineering / Computer Science.
• Experience with kiosk mode applications.
• Experience in medical / healthcare companies.

• Knowledge of security best practices.

   

Personal

• Fire-and-forget attitude.
• Strong sense of ownership and responsibility for both production environments and company IT.
• Detail-oriented mindset with a focus on security, compliance, and reliability.
• Problem-solver able to troubleshoot across DevOps, infrastructure, and IT domains.
• Comfortable working in a startup environment: flexible, hands-on, and willing to switch contexts between R&D support and internal IT.
• Excellent collaboration and communication skills, working closely with engineers, data scientists, clinicians, and non-technical staff.
• Ability to document and enforce policies in a way that balances compliance with usability.
• Proactive learner, always looking to adopt best practices and introduce improvements in DevOps and IT.
• Quick learner, team player.

[HIRING] 3D Artist (Hard Surface modeling)

Location: Remote

Type: Project-based (3+ month of full-time workload, with a potential for long-term contract after that period).
 

About Us

HiMASTERS is a 3D outsourcing studio led by senior artists with decades of experience on top-tier projects and franchises including Metro Exodus, Halo, Battlefield, Microsoft Flight Simulator, War Thunder, World of Tanks, and many more. We deliver top-quality assets for both games and cinematics — stylized or realistic, always production-ready.
 

ABOUT THE JOB

HiMASTERS — is looking for Hard-surface artists to create assets for Flying simulators, Train simulators, Third-person mech shooters (PC, mobile), weapons for FPS, TPS games.
 

RESPONSIBILITIES

• Create 3d models and textures of planes, vehicles and machinery with high-level of similarity. Ideally using camera/photo matching techniques. Simulator projects require a high-level of similarity. Ideally there should not be a difference between a photo and a model.
• Create hard-surface models using different techniques and pipelines (high-to-low, mid-poly, low-to-high poly)
• Retopologize and transform 3d scans and CAD models to game ready models.
• Ensure consistency and quality of your work and be able to match the project requirements.
• Receive feedback and modify work based on art direction.
• Report work progress. We require 1 screenshot and 1 sentence report regarding the work progress at the end of the day. We use it to keep our clients up to date.
   

REQUIREMENTS

• The main requirement is responsibility.
• Knowledge of modern modeling pipelines
• Functional knowledge of articulation and mechanical aptitude
• Experience with creating PBR materials
• Proficiency in 3ds max, blender, Zbrush, Substance painter, Fusion 3d, MOI, Plasticity
• Intermediate English. All the documentations and communications with the clients and your Lead would be held in English.
• Good communication and interpersonal skills and willingness to help everyone
• Ability to create a basic machinery rigging and animations
• Minimum experience with game engine integration (Unity, Unreal)
   

WILL BE A BIG PLUS

• Desire to develop as a specialist further
• Ability to check the quality of the models and provide feedback.
• Ability to estimate models and projects.
• Good English written and speaking
• Camera matching experience: Image modeler, 3ds max camera matching, Blender fSpy and Perspective Plotter.
• CAD experience.
• Ability to set up the asset for game engine exporting in blender and 3ds max. We do not care where the model was created. But most of the custom engines we work use 3ds max or blender addons for exporting.
• Experience with LODs, collisions, damage model creation, emitters etc.
   

How to Apply

Send your CV and Portfolio