Jobs at Djinni

Our team is looking for Technical Support Engineer !
 

Working Hours & Schedule:

• Workdays: Wednesday – Sunday
• Days Off: Monday & Tuesday
• Standard Hours: 9:00 AM – 6:00 PM

Requirements:

• Bachelor’s degree in information technology or computer science;
• Knowledge of English at the intermediate level (upper intermediate will be a plus);
• Good interpersonal skills and time management skills;
• Proven work experience as a technical support engineer or in a similar role for at least 3 years;
• Strong testing skills and knowledge of web services, APIs, and IP-based protocols;
• Ability to troubleshoot complex system and software issues;
• Client-oriented and friendly attitude, attentiveness, self-dependence;
• Strong critical thinking and problem-solving skills;
• Excellent written and verbal communication skills;
• Motivation to learn new skills and technologies.
   

Responsibilities:

• Collecting as much information as possible about the problem and attempting to solve it independently or escalating it to the appropriate Tech team (QA, developers, BA, DevOps, or system administrators);
• Installing and configuring client connection systems, e.g. accounts, connectors, etc;
• Responding to client support requests;
• Repairing software system malfunctions, issues, and related problems;
• Evaluate and prioritize customer support cases;
• Respond to customer inquiries and assist in troubleshooting and resolving challenges;
• Communicate and resolve customer problems via the Jira system or live chat;
• Act as the initial point of contact for all system related concerns from clients;
• Act as the primary liaison between company and your customers;
• Prepare accurate and timely reports;
• Tracking and managing work records and documentation;
   

Will be a plus:

• Technical support experience in card processing or fintech company;
• Having a higher or incomplete higher technical education is a plus;
• Jira experience;
• Bachelor’s degree in a relevant field, like Computer Science, IT or Software Engineering, Microsoft, Cisco, Linux or similar certification.
   

We offer:

• Interesting and extensive project;
• Fair remuneration;
• Flexible working hours and work-life balance;
• 20 vacation days, sick leaves upon request;
• Corporate English/Spanish language classes.

SBC Performance drives scalable growth for brands ready to expand globally.

Working across eCommerce, health & wellness, education, and entertainment, our team helps brands acquire customers faster and scale across 26+ global markets. We combine data-driven paid media, performance creative, and advanced analytics to turn marketing into a predictable revenue engine.
Trusted by 200+ companies, managing $150M+ in ad spend.
 

Scale faster. Grow smarter.

Now, we’re looking for a Full Stack Engineer to join our AdTech product team. Someone passionate about building scalable, data-driven systems that power performance marketing automation and analytics.
 

Key Responsibilities:

• Design, build, and maintain frontend and backend services for the internal AdTech platform.
• Develop Angular (v12+) applications with TypeScript, using reactive patterns (RxJS, Angular Material, reactive forms).
• Implement and optimize state management and change detection for high-performance UI.
• Build and maintain Node.js microservices with TypeScript and RESTful APIs.
• Work with PostgreSQL (TypeORM) and Firestore (NoSQL) for data modeling and storage.
• Implement asynchronous patterns, error handling, and background data processing.
• Integrate with Google Cloud Platform (GCP): Cloud Functions, Firestore, Cloud Storage, and Secret Manager.
• Utilize Redis caching, message queues (RabbitMQ / Pub/Sub), and efficient pagination/filtering for large datasets.
• Collaborate with product, analytics, and QA teams to deliver robust, scalable AdTech solutions.
   

Requirements:

• 3+ years of experience as a Full Stack Engineer
• Experience with Node.js, Angular (v12+), and TypeScript in production environments
• Strong knowledge of RxJS, Angular Material, and reactive forms
• Experience with state management and change detection optimization
• Experience with microservices architecture and RESTful APIs
• Proficiency with PostgreSQL (TypeORM) and Firestore (NoSQL)
• Understanding of asynchronous patterns and error handling
• Experience deploying and managing Cloud Functions (triggers, logs, monitoring)
• Knowledge of Firestore queries, indexing, and data modeling
• Familiarity with Cloud Storage and Secret Manager
• Docker basics for local development and testing
• Experience with message queues (RabbitMQ or Pub/Sub)
• Redis caching and session management
• Handling large datasets (pagination, filtering, sorting)
   

Nice to Have

• Experience with ad platform APIs (TikTok Business API, Facebook Graph API, Google Ads API)
• Working knowledge of BigQuery for analytics and data aggregation
• Experience building worker pools and parallel processing pipelines
• Familiarity with CI/CD pipelines and deployment automation
• Understanding of AdTech concepts — campaigns, budgets, pixels, conversions
• Experience with high-volume, real-time data systems
   

What We Offer

• Hybrid job in Prague/Warsaw or remote
• Competitive compensation
• Flexible working hours: we start our operation day between 9:00 — 11:00 CET
• All necessary equipment
• Paid vacation and sick leaves
• Educational support: reimbursement of certification, training, and a knowledge-sharing atmosphere
• Company events and multiple internal activities
• Open feedback and transparent direct communication

Who we are 

We are a Ukrainian multiproduct company that creates database development and management tools, connectivity solutions, productivity tools, and data services for more than 500.000 clients from 120 countries. Among our clients, you can find such legends as Microsoft Corporation, Oracle America, IBM, Intel, and many more companies that deserve their place in the Fortune 100 and Fortune 500.

Since 1997, we have been streamlining data workflows for professionals and teams with our intuitive and efficient software products. We’re committed to enhancing our customers’ experience across the globe by minimizing data-related tasks and enabling them to focus on more inspiring goals. Whether it’s Fortune-100 companies or individuals, we provide a customer-centric approach, delivering high-quality solutions and exceptional support.

Driven by passion, we play a substantial role in shaping the future of data management.

Product that needs your engagement 
Skyvia is looking for a proactive, data-driven, and result-oriented Growth Manager to join our marketing team.

Your ultimate goal will be to scale user acquisition by significantly increasing the share of non-organic leads and customers through PPC and other paid channels. In this role, you will have full ownership of growth initiatives, managing projects from ideation to execution, and making a direct impact on our core business metrics.

This position reports directly to the Head of Growth.

Your Main Goal

To rapidly scale the volume and share of non-organic, high-quality traffic, leads, and paying customers while maintaining a healthy, optimized Customer Acquisition Cost (CAC).

Key Responsibilities

• Manage and Scale Non-Organic Channels: Build, launch, and optimize high-performing ad campaigns across PPC (Google Ads, Bing Ads), Paid Social (LinkedIn, Meta), and alternative paid acquisition channels.
• End-to-End Project and Process Management: Lead growth projects and initiatives from scratch. Independently build, optimize, and manage marketing workflows and processes to ensure fast-paced execution.
• Cross-Functional Collaboration: Actively communicate, align, and collaborate directly with other team members (designers, copywriters, analysts, developers) and stakeholders to drive initiatives forward.
• Data-Driven Hypothesis Testing: Constantly generate, prioritize, and test new growth hypotheses. Run rigorous A/B tests on ad creatives, copy, landing pages, and audience targeting.
• Reporting and Collaboration: Build clear dashboards, track funnel performance from the first click to paying customer, and provide regular updates and insights to the Head of Growth.

Requirements

• Experience: 3+ years of proven experience as a Growth Marketing Manager, Performance Marketer, or PPC Specialist (ideally within the B2B SaaS or tech product space).
• Deep Understanding of Metrics & Funnels: Strong command of unit economics and marketing KPIs. You live and breathe metrics like CAC, LTV, ROAS, ROI, CPA, CR (Conversion Rates), and funnel velocity. Deep understanding of the B2B SaaS Funnel for ICP = SMB US (Small and Medium Businesses in the US market) is required.
• Pure Data-Driven Approach: You don’t rely on gut feelings. You analyze complex data sets, uncover hidden trends, identify conversion bottlenecks, and turn raw numbers into actionable growth strategies.
• Ability to Present and Justify with Data: Strong presentation and communication skills. You can clearly articulate your ideas, build data-backed business cases, and confidently justify budget allocations or strategy pivots using hard data.
• Ownership and Proactivity: A self-starter mindset. You don’t wait for tasks to be assigned or processes to be set up; you proactively identify areas of growth, build necessary workflows, and take full responsibility for the outcomes.
• Tools: Professional proficiency in Google Ads and Google Analytics is mandatory. Advanced proficiency with CRM systems, attribution tools, and data visualization platforms.
• Language: Fluent English (Upper-Intermediate/Advanced) is a must, as you will be working with a global product and target audience.

Benefits you get

• Maintain your work-life balance

Manage your own working hours with our flexible schedule

19 days of annual vacation granted on a pro-rata basis

No overtimes required

• Hybrid/remote type of cooperation

Whether you prefer to work remotely in the comfort of your home office or from one of our 4 offices, you can still take part in increasing the world`s awareness about quality Ukrainian products from any part of the world

• Stay healthy

Medical insurance from one of the top insurance companies in Ukraine with a wide range of included services, as well as special programs for relatives; and special options for those who live abroad.

15 working days of sick leave per year — because your health is a priority.

• Grow with us

In-house English courses — increase your proficiency through our online courses and speaking clubs with a native speaker

Online learning activities — workshops, lectures, and webinars to enhance your leadership, management, and self-awareness skills

Experience exchange — we are proud of our team of professionals who gladly share their deep expertise in all kinds of fields with the rest of the team

Promotions, rotations, and transitions — when you believe your skills could benefit a different role or team.

• Stand with Ukraine!

We have an active pro-Ukrainian position, and that means we help our army, our servicemen, and their families not only through constant donations and volunteering, but also through our military leave policy, special health insurance options, and financial help

We are a perfect match if you share our values

We are professionals in our field.

We know how to turn up our professionalism to the maximum, because we are experts who enjoy solving complex tasks.

We know how to focus on the product, think big, and at the same time delve deep into the details.

We create a calm and friendly atmosphere within the company.

We value the freedom of open and transparent communications.

Radical honesty is embedded in the foundation of our culture.

We are open to new things and constantly develop and practice regular knowledge sharing, which helps us evolve continuously.

Most importantly, the company creates an environment where we can fulfill our potential upon a solid foundation.

Our Hiring Process

• Recruitment Interview
• Product Interview
• Test Task
• Technical Interview
• Offer Call

We strive to ensure transparency and openness in the hiring process, and we understand the importance of providing timely feedback. If your resume meets the job requirements, we will contact you to clarify details and schedule an interview within 2 weeks after your application is submitted.

The timeframe for feedback between interview stages may take up to 2 weeks.

We are looking for an experienced Python Web Scraping Engineer to build and maintain scalable data extraction systems. You will develop robust web scrapers, automate data collection workflows, and help create market intelligence solutions by aggregating and analyzing large volumes of web data.

This is a part-time position. The initial phase of the project focuses on building a scalable web scraping platform and is expected to take up to 3 weeks. Once the platform is completed, the role will transition into ongoing maintenance, optimization, and feature improvements, requiring an average commitment of approximately 2 days per week (or equivalent part-time hours spread across the week).

Responsibilities

Design, develop, and maintain web scraping solutions using Python.
Build a scalable web scraping platform from the ground up.
Extract, process, and validate data from multiple web sources.
Handle website protection mechanisms and ensure scraper reliability.
Integrate and manage residential proxy solutions.
Build automated data pipelines and load data into BigQuery.
Deploy and monitor scraping services using Google Cloud Run.
Optimize scraper performance, scalability, and data quality.
Maintain and enhance the platform after the initial development phase.
Collaborate with stakeholders to define data collection requirements.
 

Requirements

4+ years of commercial experience with Python.
Proven experience building and maintaining web scrapers.
Strong understanding of HTTP, HTML, CSS Selectors, XPath, and modern web technologies.
Experience with scraping frameworks and tools such as Scrapy, Playwright, Selenium, BeautifulSoup, or similar.
Experience working with proxy networks and IP rotation.
Solid SQL skills and experience with BigQuery or other data warehouses.
Experience with cloud platforms, preferably Google Cloud Platform (GCP).
Ability to troubleshoot, optimize, and maintain large-scale scraping operations.
Intermediate or higher English level.
 

Nice to Have
 

Experience with Scrapling.
Experience deploying applications with Google Cloud Run.
Docker and containerization experience.
Experience building ETL/data pipeline solutions.
Familiarity with data analytics and market intelligence projects.
 

What We Offer
 

Competitive compensation.
Part-time remote contract.
Flexible working hours.
An initial project lasting up to 3 weeks to build the platform, followed by long-term maintenance and optimization work with an average workload of approximately 2 days per week (or equivalent part-time hours).
Opportunity to work on large-scale data collection and analytics projects.
Direct impact on technical decisions and system architecture.

Dataweb Global Group is looking for a Client Service Manager.

Dataweb Global Group is an international hosting and IaaS provider. Our solution scope includes full-stack IT infrastructure solutions based on enterprise-level Bare Metal, both Public and Private cloud offerings, and content delivery services (CDN).

We work with clients across various industries who require custom-built solutions to manage significant computing power, such as VoD platforms, Martech/Adtech platforms, Fintech, AI/ML computing, gaming, funtech and more.

Our mission is to provide personalized solutions for businesses and the people behind them.

Responsibilities:

• Act as a liaison between technical specialists and clients, ensuring smooth and mutually beneficial cooperation;
• Process all incoming customer requests related to new or upgraded server hardware (dedicated or cloud servers, etc.) and services (CDN, etc.);
• Coordinate and oversee all internal work related to customer orders, maintaining communication with both clients and technical teams throughout all stages of delivery;
• Provide full documentary support for each order (contracts, invoices, etc.), and maintain accurate order data in internal company systems;
• Collect and analyse statistics upon request, preparing insights and proposals based on the data;
• Take an active role in improving the service and developing company products.
   

Requirements:

• Knowledge of the hosting market (dedicated servers, CDN, VPS, domains, etc.);
• Strong understanding of server hardware configurations and technical characteristics;
• Basic knowledge of networking technologies and internet services;
• Experience working with B2B clients, with a strong focus on service quality and its development;
• Excellent communication skills and experience in handling proposals and objections effectively;
• Strong verbal and written communication skills;
• Upper-Intermediate level of English;
• Ability to plan and organise work, prioritise tasks, and provide constructive feedback;
• Proactive attitude and willingness to search for opportunities and solutions.

We offer:

• Competitive payment;
• Opportunity to work from any place in Europe (we provide technical support);
• 25 working days for rest annually, and also paid sick leaves;
• Different benefits: lunches, insurance, English courses, corporate activities and gifts. Also, we actively support brave Armed Forces of Ukraine soldiers and donate to their needs together.

   See you at the interview:)

Fit4Me is looking for a User Acquisition Manager who will be responsible for scaling the performance marketing direction and driving revenue growth through web funnels.

This role has a direct impact on business results: you will manage budgets, make decisions, and scale what generates profit.

Key business KPIs for this role:

• Keeping CPA within target benchmarks.
• ROAS / ROI performance across advertising campaigns.
• Scaling advertising budgets to $400,000+/month.

This role is a great fit if you:

• Want to own the performance direction and its financial results.
• Think in terms of ROI and revenue impact.
• Work autonomously and make data-driven decisions.
• Know how to scale winning funnels and campaigns.
• Have hands-on experience specifically with Google Ads.
• Want to grow toward a Lead / Head of UA role.

Impact Areas:

• Launching, managing, and scaling advertising campaigns in Google Ads.
• Managing budgets starting from $300,000 and distributing them effectively.
• Achieving and maintaining target CPA / ROAS / ROI metrics.
• Optimizing web funnels with a focus on improving conversion rates.
• Analyzing campaign performance and making data-driven decisions.
• Identifying growth opportunities and scaling profitable setups.
• Collaborating with the marketing team to improve creatives.

Tools: 

• Google Ads
• Amplitude / Tableau.

What we expect from you:

• 1+ year of experience in User Acquisition / Performance Marketing.
• Hands-on experience with Google Ads.
• Experience working with web funnels.
• Practical experience managing budgets starting from $300,000.
• Understanding of key metrics: CPM, CTR, CPC, CR, CPA, ROAS, ROI, LTV.
• A data-driven approach to campaign optimization.
• Intermediate+ level of English.

Nice to have:

• Experience in Health & Fitness or B2C products.
• Experience scaling campaigns across global markets.

Hiring process:

Interview with Recruiter → Test Task → Interview with CMO → Final Interview with HRD → Job Offer 🚀

Fit4Me is looking for a Head of Payments who will drive revenue growth through payment infrastructure, billing logic, and optimization of the payment experience.

In this role, you will define the payment strategy, lead the development of the billing system, and make decisions that directly impact revenue, retention, and scalable growth across Tier 1–2 markets.
This role is for a leader who combines strategic thinking with a hands-on approach: someone who both defines the direction and drives execution.

 

This role is a great fit if you:

• Want to own the payments domain and drive revenue, not just manage processes.

• Think in terms of growth and understand how payments impact conversion, LTV, and product scalability.

• Can prioritize and cut through noise, making decisions where the balance between approval, cost, and risk delivers the best business outcome.

• Feel comfortable in a player-coach role: shaping strategy while staying hands-on with key initiatives.

Impact Areas

1. Payment Strategy & Revenue Growth
• Define the payment strategy as part of the overall growth approach, driving impact on revenue, LTV, and product scalability.
• Own key payment metrics (payment success rate, renewal rate, recovery rate) and continuously improve them through data-driven solutions.
• Build and optimize billing logic (retry, dunning, renewal flows) to maximize conversion and user retention.
• Prioritize initiatives by balancing conversion, cost, and risk based on business needs and growth stage.
• Optimize the payment experience in close collaboration with the Product team.
2. Payment Infrastructure & Scaling
• Build and scale the payment infrastructure: multi-PSP setup, routing, orchestration.
• Select and launch new payment providers, payment methods, and markets (Tier 1/Tier 2).
• Ensure stable payment processing while scaling traffic and revenue.
3. Cost & Efficiency Management
• Optimize payment processing costs (PSP fees, routing, balancing conversion vs cost).
• Lead negotiations with payment providers and improve partnership terms.
• Own payment margin as part of the product’s unit economics.
4. Risk & Stability Control
• Monitor chargeback rate, fraud, and other risk metrics as key constraints for growth.
• Build approaches that enable scaling without exceeding risk benchmarks.
5. Team Leadership & Execution
• Lead Payment Operations and develop the team.
• Set priorities and ensure the right balance between strategic initiatives and operational execution.
• Work directly with the CEO, Product, and Marketing teams to drive growth initiatives.


 

What we expect from you

• 4–6+ years in payments / billing / subscription-based products, with direct impact on payment conversion, retention, or revenue.

• Experience working with high-volume payments ($3–5M+ monthly) and understanding how scale affects performance metrics.

• Building end-to-end payment flows: from payment methods (cards, PayPal, Apple Pay, Google Pay) that impact conversion, to subscription billing (recurring payments, retry / dunning logic, renewal flows, and declined payment handling).

• Strong understanding of unit economics (LTV, CAC, margins) and the role of payments within it, combined with the ability to analyze metrics, form hypotheses, and make decisions that impact revenue and scalability.

• Experience working with Tier 1 / Tier 2 markets and localizing payment methods.

• Building and optimizing payment infrastructure: PSPs (Stripe, Adyen, Braintree), routing, integrations, and launching new payment methods.

• Experience leading a payment function or team, building processes, and setting priorities.

• Upper-Intermediate (B2+) English for working with providers, negotiations, and optimizing partnership terms.

What success looks like in this role

• Payment infrastructure runs reliably at scale: high approval rates, controlled risk levels, and no critical revenue loss.

• Payments become a growth driver: increased payment conversion, improved renewal rates, and higher recovery of failed payments.

• A clear and effective payment strategy is in place: defined priorities, a strong balance between cost / conversion / risk, and a roadmap that supports product scaling.

• Payment processing costs are optimized without compromising performance: improved provider terms and efficient routing setup.

• Payment Operations runs as a well-structured system: stable processes, no operational bottlenecks, allowing you to focus on scaling and developing the function.

Hiring process:

Recruiter interview → Technical Interview → Interview with CEO → Reference check →  Job Offer 🚀

 

About Yanarchy

Yanarchy is a Los Angeles–based talent management agency working with media creators and digital talents as scalable businesses. We focus on sustainable growth, strong monetization models, and long-term value by combining creativity with disciplined financial and operational execution.

Content is one of our core growth engines. We're building a high-performance content operation where creativity is supported by data, clear processes, and continuous experimentation.

The Role

We're looking for a Head of Content who can build and lead a scalable content production system for Tier-1 markets (US, UK, Canada, Australia).

This is not a traditional creative leadership role focused only on ideas and content calendars.

Your mission is to transform content production into a predictable, high-performing operational system that consistently generates organic reach across major social platforms.

You'll work at the intersection of content strategy, production operations, audience psychology, and performance analytics—building workflows that allow creative teams to move fast while continuously improving content quality and distribution performance.

What You Will Do

Content Operations

Build and optimize the entire content production pipeline—from research and creative briefs to filming, editing, quality assurance, and handoff to the distribution team.

Create clear production workflows, ownership, and SLAs across every stage of the content lifecycle.

Continuously improve operational efficiency as production volume grows.

Content Strategy

Develop content frameworks tailored to Tier-1 audiences.

Translate platform trends, audience behavior, and performance insights into actionable creative briefs.

Ensure content is designed to maximize engagement, retention, and organic distribution.

Production Management

Coordinate collaboration between scriptwriters, creators, video editors, designers, and other creative contributors.

Establish structured filming requirements and content standards for talent.

Improve production consistency while maintaining creative quality.

Performance Optimization

Monitor key performance metrics, including:

• Hook Rate
• Watch Time
• Audience Retention
• CTR
• Engagement
• Shares

Work closely with the distribution team to analyze results, validate hypotheses, and continuously improve future content.

Use data—not assumptions—to guide creative decisions.

Content Scaling

Develop scalable approaches to content production through reusable formats, localization, AI-assisted workflows, and efficient repurposing strategies.

Increase output while maintaining platform quality standards and production efficiency.

Who We're Looking For

We're looking for someone who enjoys building systems as much as creating content.

You probably have:

• 3+ years of experience as a Head of Content, Content Operations Lead, Senior Content Manager, or similar leadership role
• experience managing high-volume content production for international or Tier-1 audiences
• deep understanding of Instagram, TikTok, YouTube Shorts, Facebook, and X algorithms
• strong knowledge of audience psychology, retention mechanics, and viral content patterns
• experience building production processes, SOPs, and scalable operational workflows
• experience leading cross-functional creative teams
• strong analytical mindset—you naturally connect creative decisions with performance metrics
• Upper-Intermediate (B2+) English or higher

Nice to Have

• Experience working in creator economy, media companies, or digital publishing
• Experience implementing AI tools into content production workflows
• Experience with localization and multi-market content strategies
• Understanding of performance-driven organic distribution
• Background in growth marketing or audience development

Success in This Role

After your first months, we expect you to:

• Build a structured, predictable content production pipeline.
• Improve collaboration across creative and distribution teams.
• Increase production speed without sacrificing quality.
• Continuously optimize content based on performance insights.
• Create repeatable systems that allow content output to scale efficiently.
• Help transform content into one of the company's strongest organic growth channels.

What We Offer

• Fully remote work
• High ownership and autonomy
• Opportunity to build content operations at scale
• Fast-moving international team with minimal bureaucracy
• Work at the intersection of creator economy, AI, and organic growth
• Direct impact on one of the company's core business functions
• Paid vacation, sick leave, and personal days off

European IT recruiting company with over 8 years of experience in the market. Our clients are product IT companies (AdTech, FinTech, GameDev, etc.) in Ukraine, the EU, and the USA.

Due to growth and entry into new markets, we are building a sales department.

We are looking for Pre-Sales Managers with the potential to become Sales Managers!

🕵️‍♂️What's important to us:
- Successful experience in sales/lead generation, and experience in B2B sales is a big plus;

- Willingness to develop in the IT industry;

- Ability to work in a team and independently;

- Excellent communication skills;

- English level - Upper intermediate ;

👨🏻‍💻👩‍💻Main tasks:

- Analysis and active search for new clients, lead generation in the target markets of the IT industry (Ukraine, Europe, USA);

- Conducting primary communication with clients together with the sales manager, presentation of services, work with objections; 

- Working with CRM (HubSpot) - maintaining a client base;

- Fulfillment of KPIs for appointed meetings with clients;
- Communication with the recruiting team;

- Reporting.

💰🧁What do we offer?

- Salary + % of contracts and KPIs + social package (registration as an individual entrepreneur);

- Professional training in effective sales with a business coach provided by the company;

- You will gain experience in an international company in B2B sales in the IT industry;

- Remote work ( Full time/remote);

- Professional and cheerful team;

- No bureaucracy.

Quintagroup is looking for a Middle Frontend Developer to join a fintech reshaping how hedge funds manage treasury and financing. You'll grow fast: a focused product, a senior team that mentors, and enough ownership to actually move things. The product helps hedge funds analyze and optimize financing across their prime brokers.

Technology stack: JavaScript, TypeScript, Vue, Tailwind, AWS, Terraform.

RESPONSIBILITIES:

• Build features for the web-based UI using the core stack — Vue and Tailwind
• Write robust, tested, production-grade code
• Deploy and maintain infrastructure using AWS and Terraform
• Collaborate with engineers, designers, and product managers

• Communicate with an international (UK) development team

   

REQUIREMENTS

• Confident with JavaScript and TypeScript
• Proactive mindset and willingness to take ownership
• Enjoys close collaboration across engineering and other teams
• English — B2+ / C1 (strong spoken and written)

WE OFFER:

• Flexible working format: fully remote, hybrid, or office-based.
• Medical insurance.
• Competitive salary and compensation package.
• Access to professional development tools, including tech talks and training sessions.
• Education reimbursement for relevant certifications or courses.
• Engaging team-building activities and location-specific perks.

Requirements: 


-5+ years of experience in JavaScript game development
- Strong knowledge of HTML5, Canvas API, and DOM manipulation
-Proven track record in creating HTML5 games
-Advanced proficiency in JavaScript (ES6+), including async/await, modules, closures, and classes
-Experience with popular libraries/frameworks such as Phaser, Pixi and Three.js
-Solid understanding of object-oriented programming and expertise in performance optimization algorithms, memory management, and threading
-Experience integrating and optimizing Spine animations in game engines
-Experience with slots
-experience in leading and mentoring front-end development teams.
-strategic, structured and analytical thinking.
-strong collaboration and communication skills.


Responsibilities:

-Manage front-end developers team, and perform code reviews;
-Write clean, efficient, testable, and scalable code;
-Collaborate closely with the team to identify and prioritize areas for enhancement;
-Take part in the full development cycle and ensure smooth development and cooperation between the dev team and product owners
- Hands-on experience with AI tools as part of everyday work is a must


Nice to Have:

+ Experience optimizing HTML5 games for mobile browser performance
+ Understanding of CI/CD


Work conditions:

— Flexible working hours and the freedom to work remotely;
— Paid vacation of 20 workdays/year and 5 workdays/year for sick leaves;
— Unlimited unpaid day-offs to take care of personal matters;
— A range of paid benefits to choose from;
— Personal development plan to support your growth
— Skills training to sharpen your expertise;
— Education office featuring internal and external experts and mentorship programs;
— Structured processes through our corporate confluence;
— Open-minded management style with transparent communication of company strategy and plans;
— Performance-based reviews to recognize and reward your contributions;
— Stress management initiatives, including 1-1 meetings and a feedback culture;
— Engaging in corporate team-building events, marathons, and online challenges;
— Family-friendly policies, including special congratulatory gifts for personal milestones like the birth of a child or a wedding.

If you are an ambitious and enthusiastic professional, always eager to learn and achieve the best results, Twin Win Games is the place for you! We offer ample opportunities for personal development and professional growth. Join us as we continue to create innovative and exciting gaming experiences.
 

Ready to work on machine learning solutions powering large-scale video advertising platforms used by millions of viewers worldwide?

We are looking for a Senior / Principal Machine Learning Engineer to join a distributed engineering team working on intelligent forecasting and advertising optimization systems. In this role, you will contribute to high-load cloud-native solutions processing billions of daily requests and terabytes of data.

We at Sigma Software offer the opportunity to work with cutting-edge ML and Big Data technologies, collaborate with international experts, and influence technical decisions within a complex AdTech ecosystem.

Customer:

Our Customer is a leading technology company in the television and digital advertising industry focused on helping media companies monetize premium video content. The platform supports high-quality video delivery across smart TVs, OTT devices, mobile applications, set-top boxes, and desktop environments. The Customer operates a large-scale distributed ecosystem that combines machine learning, cloud technologies, and advanced analytics to optimize advertising efficiency and audience targeting.

Requirements:

• 6+ years of commercial experience in Machine Learning and Big Data engineering
• Strong hands-on experience with machine learning algorithms implementation using Python
• Proven experience with Apache Spark and large-scale distributed data processing
• Experience working with distributed messaging systems such as Kafka
• Strong knowledge of AWS cloud services and cloud-native architectures
• Experience designing and developing large-scale distributed or mission-critical systems
• Solid understanding of software engineering principles, SDLC, and Agile methodologies
• Strong analytical thinking and problem-solving skills
• Ability to work independently and take ownership of complex technical solutions
• Good communication and collaboration skills

• Upper-Intermediate or higher English level

   

Will be a plus:

• Experience with Golang
• Experience in AdTech, online advertising, or media platforms
• Experience with forecasting systems or recommendation engines

• Experience optimizing ML models for large-scale production environments

   

Responsibilities:

• Design, develop, and optimize scalable Machine Learning models for advertising intelligence and forecasting systems
• Analyze large-scale historical and real-time datasets to improve forecasting accuracy and monetization strategies
• Build and maintain distributed data processing pipelines using Spark and related Big Data technologies
• Develop production-ready ML solutions using Python within AWS cloud infrastructure
• Research, evaluate, and implement Machine Learning algorithms suitable for high-load AdTech environments
• Improve model performance, scalability, reliability, and operational efficiency
• Collaborate with Data Engineers, Product Managers, and distributed engineering teams to deliver end-to-end ML solutions
• Contribute to ML architecture decisions, experimentation approaches, and engineering best practices
• Monitor, validate, and optimize ML model quality and forecasting performance in production environments
• Produce technical documentation related to ML pipelines, models, and distributed systems
• Mentor engineers and support technical growth within the team
• Drive innovation in Machine Learning and AdTech technologies

Готові працювати над рішеннями у сфері машинного навчання, які забезпечують роботу масштабних платформ відеореклами, якими користуються мільйони глядачів по всьому світу?

Ми шукаємо Senior / Principal Machine Learning Engineer до розподіленої команди розробки, яка працює над інтелектуальними системами прогнозування та оптимізації реклами. На цій посаді ви долучитеся до створення високонавантажених cloud-native рішень, що щодня обробляють мільярди запитів і терабайти даних.

У Sigma Software ви матимете можливість працювати з передовими технологіями Machine Learning і Big Data, співпрацювати з міжнародними експертами та впливати на технічні рішення в межах складної AdTech-екосистеми.

Замовник:

Наш Замовник — провідна технологічна компанія у сфері телебачення та цифрової реклами, яка допомагає медіакомпаніям ефективно монетизувати преміальний відеоконтент. Платформа забезпечує високоякісну доставку відео на Smart TV, OTT-пристрої, мобільні застосунки, TV-приставки та настільні комп’ютери. Замовник керує масштабною розподіленою екосистемою, що поєднує машинне навчання, хмарні технології та розширену аналітику для оптимізації ефективності реклами й таргетування аудиторії.

Вимоги:

• 6+ років комерційного досвіду у сфері Machine Learning та Big Data.
• Впевнений практичний досвід реалізації алгоритмів машинного навчання з використанням Python.
• Досвід роботи з Apache Spark та обробкою великих обсягів даних у розподілених системах.
• Досвід роботи з розподіленими системами обміну повідомленнями, такими як Kafka.
• Ґрунтовні знання хмарних сервісів AWS та cloud-native архітектур.
• Досвід проєктування та розробки масштабованих розподілених або критично важливих систем.
• Розуміння принципів розробки програмного забезпечення, SDLC та Agile-методологій.
• Розвинене аналітичне мислення та навички вирішення складних технічних задач.
• Здатність самостійно працювати та брати відповідальність за реалізацію комплексних технічних рішень.
• Хороші комунікаційні навички та вміння ефективно співпрацювати з командою.

• Англійська мова — Upper-Intermediate або вище.

   

Буде перевагою:

• Досвід роботи з Golang.
• Досвід у сфері AdTech, онлайн-реклами або медіаплатформ.
• Досвід розробки систем прогнозування або рекомендаційних систем.
• Досвід оптимізації ML-моделей для великомасштабних production-середовищ.

Обов’язки:

• Проєктування, розробка та оптимізація масштабованих моделей машинного навчання для систем рекламної аналітики та прогнозування.
• Аналіз великих історичних і потокових наборів даних для підвищення точності прогнозування та ефективності монетизації.
• Розробка й підтримка розподілених конвеєрів обробки даних із використанням Spark та інших технологій Big Data.
• Створення production-ready ML-рішень на Python у хмарній інфраструктурі AWS.
• Дослідження, оцінка та впровадження алгоритмів машинного навчання для високонавантажених AdTech-систем.
• Підвищення продуктивності, масштабованості, надійності та ефективності роботи моделей.
• Співпраця з Data Engineers, Product Managers та розподіленими командами розробки для створення комплексних ML-рішень.
• Участь у прийнятті архітектурних рішень, визначенні підходів до експериментів та впровадженні найкращих інженерних практик.
• Моніторинг, валідація та оптимізація якості ML-моделей і точності прогнозування в production-середовищі.
• Підготовка технічної документації щодо ML-пайплайнів, моделей і розподілених систем.
• Менторинг інженерів та підтримка їхнього професійного розвитку.
• Сприяння впровадженню інновацій у сфері Machine Learning та AdTech.

We are looking for a Cyber Defense Manager to lead, mature, and operate our resilient security operations capability. In this role, you will own the defense of our environment, ensuring fast and precise threat detection, investigation, containment, and exposure reduction. You will lead our security operations function, making the organization faster in responding to threats while continuously improving controls across the attack surface.

Responsibilities

• Own Cyber Defense execution across SOC, detection engineering, incident response, and exposure remediation
• Lead alert triage quality, escalation standards, incident command, and response coordination
• Prioritize critical vulnerabilities and exposures using asset criticality, exploitability, and business impact
• Manage Cyber Defense dashboards, runbooks, remediation follow-up, and operational metrics
• Coordinate with IT, Platform, IAM, Product, GRC, Legal, and business owners during incidents and remediation
• Build and develop the Cyber Defense team, including hiring, onboarding, mentoring, and retaining security talent
• Drive continuous improvement of detection coverage, response playbooks, and security controls based on lessons learned and threat intelligence
• Report on Cyber Defense performance, incidents, and risk posture to security leadership and stakeholders

Requirements

• 10+ years of experience in Information Security
• 3+ years in a security management or team lead role with direct people management experience
• Hands-on experience managing SOC operations, leading incident command, and driving MTTD/MTTR improvement
• Ability to design, validate, and maintain detection logic across SIEM, EDR, and cloud platforms, with a deep understanding of runbook development and false-positive reduction
• Knowledge of top attack scenarios (ATO, credential theft, privilege escalation, data exfiltration) and ability to map detections to threat models like MITRE ATT&CK
• Experience prioritizing vulnerabilities using CVSS and asset criticality to reduce exposure aging
• Hands-on experience with at least one enterprise SIEM (Splunk, Microsoft Sentinel, Chronicle, Elastic) and SOAR tooling
• Understanding of cloud-native security controls and monitoring in AWS, GCP, or Azure
• Understanding of IAM, PAM, SSO, and identity-related attack vectors relevant to detection and response
• Ability to define, track, and communicate security KPIs and operational dashboards to technical and executive audiences
• English - Upper-Intermediate or higher

Will be a plus

• Experience in fintech, e-commerce, or other high-risk industries with complex threat landscapes
• Hands-on background as a SOC analyst, incident responder, or detection engineer prior to moving into management
• Experience building a SOC or Cyber Defense function from scratch or significantly maturing an existing one
• Familiarity with threat intelligence platforms and threat-informed defense methodologies
• Relevant certifications: CISSP, CISM, GIAC (GSOM, GCED, GCIH) or equivalent

We offer

• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company’s approved Public holiday list
• Medical budget
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear and related expenses)

A Ukrainian deep tech company with a compact, ambitious R&D team in Warsaw develops innovative hybrid autonomous marine drones capable of operating both on the water surface and deep underwater. The system leverages AI for real-time target recognition, autonomous navigation, and edge decision-making. Having successfully tested the underwater prototype, the company is now transitioning to full-scale development for real-world deployment.

Requirements:

- Strong C/C++ for embedded development.
- Experience with CAN, UART, I2C, SPI, and radio links.
- Comfortable with PWM, relays, and basic electronics (reading schematics, working with EEs).
- Sensor data processing: filtering, sensor fusion, EKF or equivalent.

Responsibilities:
- Actuator control over PWM, CAN, UART, and RS485 (motors, servos, valves, relays).
- Sensor acquisition and fusion: IMU, barometer, GPS, speed sensors, INS, etc.
- Navigation and dead reckoning in GPS-denied conditions.
- Communications: radio, Ethernet, TCP/UDP telemetry and commanding.

Benefits:

- Office-based in Warsaw with core hours around 8:00–16:00 or 9:00–17:00.

- Flexible start times: You can choose to begin your day at 8:00, 9:00, or 10:00 AM.

- Financial Incentives: 4-year ESOP (option program) and performance bonuses tied to technical milestones.
 

We are looking for a Security Operations Manager to lead, mature, and operate our resilient security operations capability. In this role, you will own the defense of our environment, ensuring fast and precise threat detection, investigation, containment, and exposure reduction. You will lead our security operations function, making the organization faster in responding to threats while continuously improving controls across the attack surface.

Responsibilities

• Own Cyber Defense execution across SOC, detection engineering, incident response, and exposure remediation
• Lead alert triage quality, escalation standards, incident command, and response coordination
• Prioritize critical vulnerabilities and exposures using asset criticality, exploitability, and business impact
• Manage Cyber Defense dashboards, runbooks, remediation follow-up, and operational metrics
• Coordinate with IT, Platform, IAM, Product, GRC, Legal, and business owners during incidents and remediation
• Build and develop the Cyber Defense team, including hiring, onboarding, mentoring, and retaining security talent
• Drive continuous improvement of detection coverage, response playbooks, and security controls based on lessons learned and threat intelligence
• Report on Cyber Defense performance, incidents, and risk posture to security leadership and stakeholders

Requirements

• 10+ years of experience in Information Security
• 3+ years in a security management or team lead role with direct people management experience
• Hands-on experience managing SOC operations, leading incident command, and driving MTTD/MTTR improvement
• Ability to design, validate, and maintain detection logic across SIEM, EDR, and cloud platforms, with a deep understanding of runbook development and false-positive reduction
• Knowledge of top attack scenarios (ATO, credential theft, privilege escalation, data exfiltration) and ability to map detections to threat models like MITRE ATT&CK
• Experience prioritizing vulnerabilities using CVSS and asset criticality to reduce exposure aging
• Hands-on experience with at least one enterprise SIEM (Splunk, Microsoft Sentinel, Chronicle, Elastic) and SOAR tooling
• Understanding of cloud-native security controls and monitoring in AWS, GCP, or Azure
• Understanding of IAM, PAM, SSO, and identity-related attack vectors relevant to detection and response
• Ability to define, track, and communicate security KPIs and operational dashboards to technical and executive audiences
• English - Upper-Intermediate or higher

Will be a plus

• Experience in fintech, e-commerce, or other high-risk industries with complex threat landscapes
• Hands-on background as a SOC analyst, incident responder, or detection engineer prior to moving into management
• Experience building a SOC or Cyber Defense function from scratch or significantly maturing an existing one
• Familiarity with threat intelligence platforms and threat-informed defense methodologies
• Relevant certifications: CISSP, CISM, GIAC (GSOM, GCED, GCIH) or equivalent

We offer

• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company’s approved Public holiday list
• Medical budget
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear and related expenses)