Jobs

We are looking for an experienced Mobile Game Developer to build high-quality mobile games using the Stake Engine. This role focuses on developing production-ready crash and RNG-based games with strong performance, clean architecture, and polished execution.

You will be responsible for the full development cycle, from gameplay logic and math implementation to integration and final launch on the Stake platform.

🔹 Responsibilities

• Develop mobile games using the Stake Engine
• Build complete crash-style games 
• Implement and validate RNG logic and RTP calculations
• Integrate game logic, UI, and backend services
• Optimize performance and stability for mobile devices
• Prepare games for deployment and launch on Stake Engine

🔹 Requirements

• Proven experience in mobile game development
• Strong portfolio of shipped mobile games
• Experience working with Stake Engine or similar game engines (big plus)
• Solid understanding of RNG systems and probabilistic game logic
• Ability to write clean, maintainable, and well-structured code
• Strong attention to quality and performance

🔹 Nice to Have

• Experience with casino / iGaming / crash-style games
• Knowledge of backend integration and server communication
• Familiarity with compliance and fairness requirements

We are currently hiring on behalf of our client, a performance-driven iGaming company based in Limassol, Cyprus (On-site).
 

We are looking for a Mid-Level Affiliate Manager who can manage an active partner portfolio, support multi-geo campaigns, and contribute to steady affiliate network growth. This is a hands-on role requiring strong communication skills, solid performance tracking awareness, and the ability to manage relationships efficiently.
 

🚀 Role Overview

As a Mid-Level Affiliate Manager, you will manage day-to-day affiliate relationships, recruit new partners, and ensure campaigns deliver consistent FTD and NGR performance across EMEA markets.
 

You will collaborate closely with Creative, Marketing, Risk, Payments, and Legal teams to ensure campaigns are optimized, compliant, and commercially effective.
 

🎯 Key Responsibilities

Manage an assigned affiliate portfolio and act as the main point of contact

Recruit new affiliates across websites, media houses, forums, comparison portals, and social platforms

Support multi-geo campaigns across EMEA markets and adjust offers per GEO when needed

Monitor and optimize performance metrics (FTDs, NGR, eCPA, RevShare, retention rates)

Review competitor promotions, landing pages, and creatives to suggest strategic improvements

Ensure accurate tracking setup (links, postbacks, tagging, QA testing of clicks and conversions)

Coordinate with Creative/Marketing teams to launch targeted promotions, landers, and exclusive offers

Provide weekly performance updates including activity, commissions, and next steps

Assist in handling disputes in coordination with Risk, Payments, and Legal

Maintain organized workflows using Monday.com and reporting tools
 

✅ Requirements

2–3 years of experience in iGaming Affiliate Management (operator side)

Solid understanding of iGaming traffic sources, GEO dynamics, and player value drivers

Existing affiliate/media buyer contacts or proven ability to build partnerships quickly

Experience using affiliate platforms (e.g., ReferOn, Humbl, CellXpert or similar)

Basic negotiation skills (CPA, RevShare, caps, tiered deals within structured frameworks)

Budget awareness and ROI tracking capability

Clear reporting skills and strong English (written & spoken)

Flexibility to support occasional weekend launches or key campaigns
 

➕ Nice to Have

Experience working with media agencies and performance networks

Familiarity with Monday.com, Google Sheets/Slides, and simple BI dashboards

Basic A/B testing experience on landing pages and creatives

Additional EMEA languages (French, Dutch, Swedish, Italian, German)
 

🎁 What’s Offered

Competitive salary based on experience and impact

Performance bonus scheme

Annual performance-based salary review

Supportive and creative team environment

All necessary tools and technology

Office lunch provided

Description

GlobalLogic is searching for a motivated, results-driven, and innovative software engineer to join our project team at a dynamic startup specializing in pet insurance. Our client is a leading global holding company that is dedicated to developing an advanced pet insurance claims clearing solution designed to expedite and simplify the veterinary invoice reimbursement process for pet owners.

You will be working on a cutting-edge system built from scratch, leveraging Azure cloud services and adopting a low-code paradigm. The project adheres to industry best practices in quality assurance and project management, aiming to deliver exceptional results.

We are looking for an engineer who thrives in collaborative, supportive environments and is passionate about making a meaningful impact on people’s lives. If you are enthusiastic about building innovative solutions and contributing to a cause that matters, this role could be an excellent fit for you.

Requirements

• 6+ years of software development experience with the .NET platform (ASP.NET Core, C#)
• Strong experience building and consuming REST APIs (OpenAPI, FluentValidation)
• Knowledge of OAuth 2.0 flows is a plus
• At least 2+ year of proven experience with Azure Cloud services (Service Bus, Azure Functions, CosmosDB)
• Hands-on experience with front-end development in React (TypeScript, state management)
• Hands-on experience with adaptive design
• Solid understanding of client-server application design and asynchronous programming
• Experience with CI/CD pipelines in Azure DevOps or equivalent tools
• Knowledge of containerization (Docker, Kubernetes) is a strong plus
• Familiarity with low-code/no-code integrations (Power Apps, Power Automate) is desirable
• Experience with Azure ML/AI services, document recognition, or data-driven workflows is an advantage
• Proficiency in debugging, refactoring, and clean code design
• Strong analytical skills with ability to ramp up quickly in new domains
• Good written and verbal communication skills in English (Upper-Intermediate+)

Job responsibilities

• Design and implement cloud-native applications leveraging Azure Functions, Service Bus, and CosmosDB
• Develop front-end applications in React, ensuring responsive UI and seamless integration with back-end services
• Build and maintain microservices and APIs that integrate with multiple systems, including D365 and data platforms
• Collaborate with stakeholders to define and negotiate API contracts and ensure reliable system integrations
• Implement data processing and workflow services with a focus on scalability, performance, and resilience
• Contribute to the design of low-code solutions integrating Azure ML/AI services for automation (e.g., document recognition, intelligent data extraction)
• Participate in planning, estimation, and architecture discussions, providing technical guidance
• Debug and resolve issues of various complexities across the stack
• Work closely with DevOps and QA to ensure CI/CD pipelines, automated testing, and deployment processes are efficient and robust
• Follow coding standards and contribute to continuous improvement initiatives within the development team

LenGreo is a full-cycle digital marketing & development company. We’re currently building a new social-media-driven platform — a creator–fan ecosystem similar in spirit to modern content-sharing networks, with the ability for fans to support creators financially.

We’re looking for a Senior Full-Stack / Tech Lead who can define the technical vision and lead the build of the platform from the ground up.
 

Why this role matters:

We’re designing a high-traffic, content-heavy platform with real-time and media-rich functionality. The system must be architected from day one for scalability, reliability, security, and fast iteration.

As a Senior Full-Stack / Tech Lead, you will make the core architectural and infrastructure decisions that shape how the product is built, launched, and scaled.
 

What you’ll do:

• Define and own the overall technical architecture and system design of the platform.
• Lead technical strategy and architectural decisions across frontend, backend, database, and infrastructure layers.
• Design scalable, secure, and maintainable architecture suitable for high content volume and growing traffic.
• Collaborate closely with Product, Business Analyst, Designer, and Project Manager to translate requirements into technical solutions.
• Lead technical planning for MVP and future scaling stages.
• Select and validate frameworks, tools, and third-party services.
• Prepare realistic development estimations based on approved requirements and designs.
• Own technical delivery within agreed scope and assumptions.
• Establish development standards, architecture patterns, and code quality practices.
• Guide developers, review implementations, and support team growth.
• Design and oversee CI/CD pipelines and deployment workflows.
• Lead infrastructure and environment setup for a project starting from scratch.
   

Core technology stack:

• Frontend: Next.js
• Backend: NestJS (Node.js, TypeScript)
• Database: PostgreSQL
• Storage: S3-compatible object storage"
   

Required expertise:

• Strong production experience with Next.js frontend applications.
• Strong backend architecture experience with NestJS and Node.js.
• Proven experience designing and launching complex platforms from scratch.
• Experience architecting systems for content-heavy and high-traffic applications.
• Strong experience with PostgreSQL schema and performance design.
• Experience integrating S3 or S3-compatible storage for media-heavy platforms.
• Experience designing API architecture and service boundaries.
• Experience setting up CI/CD pipelines, automated builds, and deployment processes.
• Experience with cloud infrastructure and environment setup.
• Proven experience making architecture decisions balancing MVP speed and long-term scalability.
• Experience integrating multiple third-party services and providers.
• Solid experience with technical estimations and delivery ownership.
• Strong product and systems thinking.
   

Nice to have:

• Experience with high-load distributed systems.
• Experience with media processing and delivery pipelines.
• Experience with CDNs and caching strategies.
• Experience with real-time systems (chat, notifications, streaming).
• Experience with multi-provider payment integrations.
• Experience with user-generated content platforms.
   

Engagement format

• Full-time, remote
• Long-term collaboration anticipated.|
   

We look forward to hearing from you!

We are seeking a Product Analytics Team Lead to drive data-informed product decisions and build a high-impact analytics at JustMarkets.

In this role, you will develop and mentor a strong product analytics team, shape the analytics strategy, and turn insights into actionable recommendations that improve user experience, optimize core metrics, and guide product priorities.

Responsibilities

• Lead, mentor, and develop a team of Product Analysts, ensuring high performance and continuous professional growth
• Build, maintain, and improve analytical processes, standards, and best practices across the product organization
• Define, track, and enhance key product metrics (activation, conversion, retention, ARPU, LTV, etc.)
• Collaborate closely with Product Managers and Product Designers to drive correct data-informed decision-making
• Take ownership of complex product problems and contribute to strategic product and business decisions
• Build and validate product hypotheses, identify growth opportunities, and detect issues early through structured analysis
• Design, evaluate, and interpret A/B tests, providing clear insights and actionable recommendations
• Connect analytical findings with business goals, demonstrating how product analysis impacts outcomes
• Automate reporting processes and develop dashboards tailored to various stakeholders
• Monitor key product and business metrics, investigating anomalies and identifying root causes
• Identify patterns and dependencies in user behavior data, generating new product hypotheses
• Develop and maintain high-quality dashboards and analytical artifacts for product teams and executives
• Identify, document, and close data gaps across analytics tools (GA4, Amplitude, BigQuery, Tableau)

Requirements

• 3+ years of experience as a Product Analyst in a product-driven company
• 1+ year of experience leading, managing, or mentoring a team of analysts
• Strong ownership mentality and exceptional attention to detail in data analysis and reporting
• Solid understanding of core product metrics, user segmentation, and building product funnels
• Strong knowledge of statistical foundations, experimental design, and hypothesis testing
• Advanced understanding of A/B testing principles, statistical significance, and experiment evaluation
• Proven experience delivering analytical solutions for complex product challenges
• Experience with data visualization and BI tools (e.g., Tableau, Looker, Power BI, Metabase)
• Experience working with product analytics systems (e.g., GA4, BigQuery, Amplitude, Firebase, AppsFlyer, Mixpanel)
• Strong English written/verbal communication skills

Will be a plus

• Experience in the CFD, crypto industry

We offer

• Opportunity to redesign and optimize the product analytics strategy to drive key business decisions
• Ability develop and mentor a high-performing analytics team
• Tax expenses coverage for private entrepreneurs in Ukraine
• Expert support and guidance for Ukrainian private entrepreneurs
• 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 insurance
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear and related expenses)

Join our Core Team as a highly skilled Python Developer to build and scale our high-load Geospatial AI Data Platform. You will be the critical link, productionizing Data Science models
and transforming massive volumes of raw imagery into meaningful, structured insights that
power our client-facing product. If you're driven by complex, high-scale big data challenges, this is the role for you.

Key Responsibilities:
● Data Pipeline Development: Implement and optimize robust ETL data pipelines for
collecting, cleaning, transforming, and loading large volumes of geospatial data.
● API Development & Deployment: Design, build, and maintain high-speed, scalable
RESTful APIs (using frameworks like FastAPI/Powertools for Lambda).
● Model Integration & Productionization: Work closely with Data Scientists to containerize
and deploy models (e.g. roof age prediction) into our Geospatial AI Data Platform.
● Code Quality & Optimization: Write clean, efficient, testable, and reusable Python code.
Optimize data processing and platform latency to handle requests and queries at
massive scale and high volume.
● System Architecture: Contribute to the design and implementation of our Microservices
and Serverless architectures, ensuring high availability, security, scalability and
observability.
● Collaboration: Work within an Agile team alongside Data Scientists, DevOps, and
Product Managers to translate business requirements into technical solutions.

Required Qualifications:
● B.Sc. degree in Computer Science or a related technical field.
● Demonstrable professional experience as a Python Developer with a focus on data-
intensive backend systems (4+ years).
● Expert knowledge of Python 3, follow PEP8.
● Hands-on experience with C# / .NET for backend development (APIs or services in
production).
● Experience developing using OOP and SOLID principles.
● Proven experience designing and developing production-ready APIs using a modern
Python web framework such as FastAPI or Powertools for AWS Lambda.
● Experience with AWS services such as S3, SQS, EC2, API GW, Lambda, DynamoDB,
CloudFormation/SAM using boto3.
● Experience with Docker/Kubernetes.
● Experience with Linux, preferably Ubuntu.
● Experience with SQL Databases (e.g. PostgreSQL)
● Experience with version control (Git) and collaborative development workflows.
● Good communication skills in English

Preferred/Bonus Qualifications:
● Experience with geo-spatial libraries (e.g., Geopandas, GDAL, Shapely, Rasterio).
● Familiarity with model serving technologies such as NVIDIA Triton Inference Server.
● Experience with Workflow Management platforms such as Apache Airflow.
● Experience with on-prem servers.
● Knowledge of CI/CD pipelines (GitHub Actions) and DevOps best practices.

We are seeking an experienced Spider / Scraper Team Lead to take full ownership of the scraping ecosystem behind our international SaaS platform.
 

This is a fully remote leadership role with significant responsibility. You will define technical structure, set direction, and ensure that our scraping infrastructure is stable, scalable, and performance-driven. The role combines hands-on technical expertise with team leadership and operational accountability.
 

Responsibilities

• Lead and manage the spider/scraper team, including coordination with QA
• Define and prioritize the technical roadmap
• Ensure system stability, scalability, and performance across markets
• Monitor KPIs and proactively identify and resolve bottlenecks
• Improve architecture, infrastructure, and development processes
• Mentor developers and elevate technical standards within the team
• Take full accountability for scraping operations and output quality
  
   

This role goes beyond writing spiders. You will lead both the technical systems and the people responsible for them.
 

Qualifications

• Strong Python skills and advanced web scraping expertise
• Experience working with large-scale scraping infrastructure
• Deep understanding of proxies, anti-bot strategies, scaling, monitoring, and performance optimization
• Proven leadership experience managing developers or technical teams
• Experience structuring workflows and improving operational performance
• Fluent English (written and spoken)
• Strong remote communication and documentation skills
  
   

We are looking for someone with demonstrated experience leading and scaling technical teams - not a solo contributor without leadership background.
 

Work Setup

• 100% remote
• International team environment
• Open to contract/freelance arrangements
• Required time zone overlap with Europe
   

What We Offer

• Ownership of a critical SaaS infrastructure
• Direct impact on product performance and revenue
• Autonomy and decision-making authority
• Fast execution and flat organizational structure
• Opportunity to expand into broader technical leadership
• Competitive compensation based on experience
   

Application

To apply, please send:

• CV
• A brief description of scraping teams you have led
• Examples of infrastructure you have built, scaled, or improved

Drive finance ERP solutions for complex, high-load digital products

Softsich is a young and ambitious international product tech company that develops scalable B2B digital platforms. We’re looking for an experienced Business Analyst (ERP Finance) to support and develop finance-related ERP workflows within complex, high-volume transactional environments.

In this role, you will work closely with finance, operations, payments, and product teams, translating business needs into clear functional requirements and supporting the development of effective ERP solutions.

Your key responsibilities will include:

• Gather, document, and validate business requirements from stakeholders across finance, operations, payments, and product teams.
• Be responsible for end-to-end financial workflows for high-load transactional products, including operations and finance analytics and reporting.
• Define functional specifications for the Finance ERP system.
• Collaborate with developers, architects, and system integrators to shape requirements, data models, and diagrams.
• Lead stakeholder sessions to map business processes and identify system needs.
• Document system behavior, workflows, data dictionaries, and training materials for ERP end users.
• Stay informed of regulatory, tax, and operational changes that impact financial systems.
  
   

It’s a match if you have:

• Bachelor’s degree in Finance, Accounting, Information Systems, or a related field.
• 3+ years of experience as a Business Analyst with a focus on ERP or finance systems.
• Experience working with high-volume transactional systems.
• Strong understanding of financial controls, reconciliation processes, and compliance.
• Experience designing or working with ERP systems (custom or commercial).
• Familiarity with Agile/Scrum environments and software product life cycles.
• Upper-Intermediate level of English (written and spoken).
  
   

What we offer:

• Flexible schedule and remote format or offices in Warsaw/Kyiv — you choose.
• 24 paid vacation days, sick leaves, and health insurance (UA-based, other locations in progress).
• A supportive, friendly team where knowledge-sharing is part of the culture.
• Coverage for professional events and learning.
• Birthday greetings, team buildings, and warm human connection beyond work.
• Zero joules of energy to the aggressor state, its affiliated businesses, or partners.
  
   

Send over your CV now — we’d love to get to know you better!

Softsich is a young and ambitious international product tech company that develops scalable B2B digital platforms. We are looking for a Backend Java Tech Lead who will take technical ownership of the backend team working with a microservices, high-load architecture.

This role is about leadership, architecture, and responsibility for the technical direction of the platform.

Your key responsibilities will include:

• Lead the backend team technically, ensuring architectural vision and technical standards.
• Design, implement, and maintain high-load, scalable backend services using Java and Spring Boot.
• Drive technical decisions and take full ownership of architectural solutions.
• Ensure high code quality via best practices, reviews, and automation.
• Optimize system performance and reliability across microservices.
• Work with event-driven architectures and distributed systems.
• Mentor developers, support skill development, and foster collaboration.
• Collaborate with cross-functional teams to deliver reliable and scalable solutions.

It’s a match if you have:

• 5+ years of commercial experience with Java (17+/21) and Spring Boot.
• Strong knowledge of the Spring ecosystem: Web, Security, Data, Scheduler, WebFlux.
• Hands-on experience with microservices and high-load architectures, event-driven systems.
• Practical knowledge of CI/CD, containerization (Docker), and deployment to Kubernetes (EKS).
• Solid experience with Apache Kafka (producers/consumers, distributed topics, retry and error handling).
• Experience working with databases: PostgreSQL, MongoDB / AWS DocumentDB, SingleStore.
• Experience in designing and optimizing REST APIs.
• Experience with monitoring and logging tools: Grafana, Prometheus, Micrometer, ELK.
• Experience in technical leadership or mentoring engineering teams.
• Ability to make and own architectural and technical decisions.
• Strong communication skills, teamwork mindset, and analytical thinking.
• English level — Upper-Intermediate.

What we offer:

– Flexible schedule and remote format or offices in Warsaw.

– 24 paid vacation days, sick leaves, and health insurance (UA-based, other locations in progress).

– A supportive, friendly team where knowledge-sharing is part of the culture.

– Coverage for professional events and learning.

– Birthday greetings, team buildings, and warm human connection beyond work.

– Zero joules of energy to the aggressor state, its affiliated businesses, or partners.

Send over your CV now — we’d love to get to know you better!

Welcome to ApexTech 🙌 

We are looking for 🚀 Fullstack Developer 🚀 who enjoys learning, building, and switching between projects. 

Responsibilities: 

● Advanced Backend and Frontend developments (JavaScript / NextJS / ReactJS) 

● Mentor / Coach other team members 

● Code reviews and refactoring 

● Advanced problem analysis and solving in production 

● Bug fixing, follow-up and workaround, identification of pain points in the platform 

● Responsible for the efficiency of all the components in the infrastructure 

● Write technical specifications when needed 

● Automate and Optimize repetitive tasks 

Required skills: 

● 5+ years of experience in JavaScript fullstack development (NodeJS / NextJS / ReactJS) 

● Proficient in building SSR/SSG/ISR web applications. 

● Proficient in building and consuming APIs - Rest / GraphQL 

● Strong knowledge of accessibility (a11y) 

● Strong understanding of SEO best practises, semantic HTML and metadata 

● Familiar with Cloudflare for CDN, caching, security and performance optimizations. 

● Familiar with Cloud DevOps (AWS preferred) 

● Eye for detail and sensitivity for graphics and aesthetics 

● Adaptability and responsiveness 

● Great analytical skills 

● Fluent in English 

● Team-player 

Nice-to-have: 

● Experience with Python Backend Development (Django / FastAPI) 

● Experience with a Headless CMS (like Sanity / Contentful, or Strapi) 

● Experience using Tailwind CSS or CSS-in-JS solutions. 

● Experience using UI libraries (like RadixUI / HeadlessUI / MaterialUI) 

● Exposure to internationalization (i18n) in NextJS 

Interview process: 

1. Intro-call with the Recruiter. 

2. Technical Interview. 

3. Client Interview. 

What do we offer?

 💻 Full remote work and meetings for brainstorming. 

💡Freedom and flexibility. 

🚀A team of top experts and synergy of the entire organization. 

💸Competitive salary. 

🌿 Vacation and sick leaves. 

🙏Therapy sessions with our psychologist. 

📚Budget for professional development. 

💃Corporate events and team building.

What Do We Do?

Madgicx is transforming how eCommerce brands scale their digital advertising through AI-powered automation and intelligent optimization. Our platform empowers thousands of brands to make smarter marketing decisions, automate complex workflows, and achieve unprecedented ROAS. We’re building the future of autonomous advertising, where AI and human creativity combine to unlock exponential growth.

Why Madgicx Needs You

As a Backend Engineer at Madgicx, you are responsible for building and maintaining the core APIs and services that power our AI-driven advertising platform. You will design resilient, high-performance backend systems that handle millions of advertising operations daily, integrate with multiple advertising platforms, and serve as the foundation for our AI agent ecosystem.

This is a hands-on engineering role where you’ll ship production code daily, collaborate closely with AI/ML teams, and directly impact thousands of brands’ advertising performance.

What You’ll Own

1. Core API Development

• Build and maintain RESTful APIs serving web, mobile, and AI agent clients
• Design database schemas and optimize query performance for high-traffic endpoints
• Implement authentication, authorization, and rate limiting for secure API access
• Write comprehensive tests (unit, integration, E2E) ensuring code quality and reliability

2. Service Integration & Data Pipelines

• Integrate with advertising platform APIs (Meta Marketing API, Google Ads API, TikTok Ads)
• Build data ingestion pipelines processing campaign metrics, creative performance, and audience insights
• Handle webhook processing, event streaming, and asynchronous job processing
• Implement retry logic, circuit breakers, and graceful degradation for external service failures

3. AI-Ready Infrastructure

• Build backend services that support AI agent workflows and LLM integrations
• Design APIs that enable AI agents to query data, execute actions, and receive feedback
• Implement observability hooks (tracing, logging, metrics) for AI system monitoring
• Collaborate with Data Science teams to productionize ML models and predictions

4. Performance & Scalability

• Optimize API response times (P95 <500ms) and database query performance
• Implement caching strategies (Redis, CDN) for high-traffic endpoints
• Design for horizontal scalability using containerization and orchestration
• Monitor system health, troubleshoot production issues, and participate in on-call rotation

5. Code Quality & Collaboration

• Write clean, well-documented, and maintainable Python code following team standards
• Conduct thorough code reviews providing constructive feedback to peers
• Participate in pair programming sessions and knowledge-sharing activities
• Contribute to technical documentation, runbooks, and architectural decision records

What You’ll Bring

Required

• Bachelor’s degree in Computer Science, Software Engineering, or equivalent experience
• 5+ years of production backend development with demonstrable impact on system reliability and performance
• Python expertise: Strong proficiency in Python web frameworks (FastAPI, Flask, Django) and async programming
• API design: Experience building RESTful APIs with proper versioning, error handling, and documentation (OpenAPI/Swagger)
• Database proficiency: SQL expertise (PostgreSQL, MySQL) including schema design, indexing, and query optimization
• Cloud infrastructure: Hands-on experience with Google Cloud Platform (preferred) or AWS/Azure
• GenAI & Agentic Framework familiarity: Practical experience using GenAI tools (GitHub Copilot, ChatGPT, Claude) for development, understanding of LLM capabilities/limitations, worked on setting up agentic toolings such as RAG, Guardrails, Feedback loops, planning, MCP’s and orchestration tools etc...
• Containerization: Production experience with Docker and Kubernetes for service deployment

Non-Negotiable Technical Skills

Backend Core
Python Web Frameworks (FastAPI, Flask, or Django with async capabilities), SQL Database Design (PostgreSQL schema design, indexing strategies, query optimization), and API Architecture (RESTful design, authentication/authorization, rate limiting, error handling)

Cloud & Infrastructure
Google Cloud Platform (Compute Engine, Cloud Run, Cloud SQL, Pub/Sub, Secret Manager, IAM), Container Orchestration (Docker containerization, Kubernetes deployments, service configuration), and Infrastructure as Code (Terraform or equivalent for reproducible deployments)

Integration & Data
Third-Party API Integration (OAuth flows, webhook processing, rate limit handling, retry logic), Message Queuing (Pub/Sub, RabbitMQ, or Kafka for async processing), and Caching Strategies (Redis for session management, query results, and rate limiting)

GenAI & Observability
GenAI Tool Proficiency (Active use of GitHub Copilot, ChatGPT, or Claude for code generation, debugging, and documentation), LLM Integration Basics (Understanding of API usage, token management, prompt engineering, etc... ), and Observability (Structured logging, distributed tracing, metrics collection, and alerting)

Our Operating Principles

• Ship Code, Not Slides: We measure success by features in production, not meeting decks
• Engineering Excellence: Clean code, tested systems, thorough documentation, and scalable architectures
• Speed to Production: From feature branch to deployment in days, not weeks

• Data-Driven Decisions: We trust metrics, experiments, and user feedback over opinions

   

Continuous Learning: Every production incident and performance issue teaches us something new

What Success Looks Like (First 12 Months)

• Shipping velocity: Consistently deliver features from design to production within sprint cycles
• System reliability: Maintain <0.1% API error rate and P95 response times under target SLAs
• Code quality: Your PRs require minimal revisions and serve as examples for junior engineers
• AI readiness: Backend services seamlessly support AI agent integrations and ML model deployments
• Team impact: Improve developer productivity through better tooling, documentation, or architectural patterns

What’s In It For You

• Impact: Your APIs power advertising decisions affecting billions in ad spend across thousands of brands
• Technical Growth: Work with cutting-edge AI/ML systems, high-traffic APIs, and modern cloud infrastructure
• Ownership: Full responsibility for services from design through production operation
• Learning Budget: Conferences, courses, certifications, and dedicated learning time
• Compensation: Competitive salary, equity, performance bonuses, and comprehensive benefits
• Flexibility: Remote-first culture with flexible hours and work-life balance

Ready to Build the Future of Advertising AI? If you’re excited by the challenge of building ML systems that generate millions in revenue, we want to talk. Send us your GitHub, examples of production platforms you’ve built, and evidence of business impact you’ve driven. Show us why you’re the engineer who will help us revolutionize advertising through AI.

Are you passionate and curious about server architecture?

Bizzabo is looking for a Senior Backend Engineer in Ukraine to join our fantastic engineering team.

Our server architecture is based on Java 8 and Python microservices. We are using the Spring Boot framework for our Java services with ElasticSearch, Redis, Temporal, and many other buzzwords as part of our ecosystem :) 

We are advocates for cutting-edge technology. We are looking for someone to join our team that is in charge of a product that connects Software and Hardware and real-time communication with an extremely interesting and lucrative product offering. 

WHAT YOU’LL BE DOING

• Be dedicated to product quality and have excellent analytical and problem-solving skills
• Continuously design, develop, and deploy backend services
• Focus on high availability, low latency, and scalability
• Contribute your analytical abilities
• Enthusiastically research new methods for doing things
• Provide solutions to challenging problems

WHAT YOU HAVE

• 5+ years of development experience using Python
• Working with databases 
• Built a microservices architecture for large-scale applications
• Have a deep understanding of security risks
• Working with AWS infrastructure: EC2, S3, RDS, SQS, etc.
• Computer science degree from a leading institute

 WHAT WOULD BE A BONUS

• Familiarity with Kotlin
• Experience with Kubernetes
• Experience with TDD or a testing culture

YOUR JOURNEY

✅ Prescreen with recruiter → ✅ Complete assignment → ✅ Technical interview → ✅ Interview with manager → ✅ Reference check → ✅ Job offer

We are seeking for a Senior Developer with deep expertise in AI, code, and scaling – and above all, the ability to lead bold technological processes and change the rules of the game.

If you live and breathe code, love automation, and get excited by the opportunity to write less and create more – this is your place.

1. We are looking for someone with Tech Lead experience- this is still a hands-on position.

2. Candidate must work with AI for a minimum of one year.

3. The profile here is a strong tech lead, who loves technology and exploring and learn new technologies by himself.

Responsibilities:

• Leading the transition from monolithic to microservices architecture
• Leading work with tools like GitHub Copilot and other LLMs as daily tools
• Accelerating development processes, automating tests, documenting and understanding complex code
• Defining new standards for high-volume development environments
• Technical leadership of a team – including training, mentoring, and hands-on implementation
• Implementing code solutions quickly and with high quality in critical systems environments
• Developing cloud systems

Requirements:

• 7+ years of backend development experience in C#/.NET, Node.js is an advantage
• 4+ years of experience in React.
• Great English communication skills.
• Proven experience in rapidly improving development speed and reducing bugs using AI-based tools
• Ability to lead end-to-end development processes including scaling, documentation, and automation
• System-level thinking, business orientation, and training skills Experience working with microservices architecture and building APIs
• B.Sc. in Computer Science or a similar technological field – required

Relevant Technologies:

• Backend: Node.js/C#/.NET Framework, ASP.NET Web API/Core, Entity Framework, Python
• Databases: SQL Server, MongoDB, Redis
• Messaging: RabbitMQ
• Frontend: Angular 5+, TypeScript, React
• Cloud & Containers: Azure / AWS, Kubernetes
• AI Tools: GitHub Copilot, Claude – proven experience required

We are bill_line — a fintech company born in Ukraine, now conquering the global payments market.

Our core product is a payment solution for any online business, and we improve it every single day. A bill_line client can be any business that needs a payment solution — from a small online store to banks, insurance companies, or charitable organizations.

Why us?

bill_line is a “Swiss army knife” in the fintech world for any client that needs to accept payments worldwide. This means our bizdev, support, legal, and finance teams stay with the merchant from the connection request to integration and transaction сопровождение.

We are proud of our approach and its results. But every success is a puzzle — and only the best team in the world can assemble it.
Want to become part of it and help transform the Ukrainian and global fintech market? Great — because we are currently looking for a CFO.
 

Daily responsibilities

• Development and implementation of the company’s financial strategy aligned with long-term business goals
• Financial planning, budgeting, and forecasting management
• Control of accounting, reporting, and compliance with internal and external standards
• Preparation and analysis of financial reports and recommendations for management
• Cash flow management, cost optimization, and budget compliance control
• Interaction with banks, external auditors, and outsourcing companies
• Development of ERP systems and financial processes
• Team building and management
   

We expect from the candidate

• Experience in a senior financial leadership role (CFO) in fintech or related industries
• Strong knowledge of accounting, budgeting, risk management, and financial analysis
• High analytical skills, strategic thinking, and decision-making ability
• Experience implementing and optimizing financial processes and ERP systems

We offer

• Our HQ in resilient Kyiv, near Zvirynetska metro station
• Everything you need to work effectively from day one (top equipment, service subscriptions, and more)
• Hybrid format: Monday, Wednesday, Friday in the office, other days optional. Even during blackouts you’ll have stable Wi-Fi, backup power, independent heating, a gym zone, shower, and even a sleeping area
• We are Diia.City residents — providing multiple employment options from day one
• 24 paid vacation days (unused days compensated financially)
• Fully paid sick leave
• Corporate lunches from GudFood
• Mandatory medical insurance
• Psychological support sessions — we care about mental health

We are the creators of a new fintech era!
Our mission is to revolutionize the world by making blockchain technology accessible to everyone in everyday life. WhiteBIT is a global team of more than 1,200 professionals united by a shared vision of shaping the Web3 future.
We are building our own blockchain ecosystem, ensuring maximum transparency and security for over 8 million users worldwide. Our cutting-edge solutions, rapid adaptation to market challenges, and technological excellence set us apart from traditional companies.
Our official partners include the National Football Team of Ukraine, FC Barcelona, Lifecell, FACEIT, and VISA.

The future of Web3 starts with you — join us as an Expansion Manager!

Requirements:
— Minimum 3 years of experience in international expansion, emerging markets.
— Background in fintech or crypto is highly preferred; experience in fast-scaling B2C/B2B tech environments is a strong advantage.
— Solid understanding of market analysis, go-to-market strategies, and financial performance tracking.
— Strong analytical mindset combined with a hands-on approach to execution.
— Strong cross-cultural communication skills
— Demonstrated ability to drive results through cross-functional influence rather than direct authority.
— Strategic thinker with the ability to translate ideas into actionable plans.
— Energetic, adaptable, and highly motivated to grow within a fast-paced, global environment.
— English - Advanced
— UA/RU - B2+
— Other languages - such as Spanish / Arabic / Italian / German would be a plus

Responsibilities:
— Design, implement, and refine the operational framework for market launches to ensure faster and more efficient execution.
— Monitor key performance metrics and ensure transparency of progress across teams and stakeholders.
— Proactively identify risks, blockers, and inefficiencies, proposing solutions to accelerate execution.
— Contribute to strategic planning and regional roadmaps together with the Expansion Lead and VP.
— Capture and implement best practices and playbooks for go-to-market, localization, and operational setup.
— Coordinate cross-functionally with Product, Marketing, Legal, Compliance, and Finance teams to enable seamless market entry.
— Support budgeting, forecasting, and post-launch performance reviews
— Where applicable, conduct in-depth market research to identify, assess, and prioritize new market opportunities across multiple regions.

Immerse yourself in Crypto & Web3:
— Master cutting-edge technologies and become an expert in the most innovative industry.
Work with the Fintech of the Future:
— Develop your skills in digital finance and shape the global market.
Take Your Professionalism to the Next Level:
— Gain unique experience and be part of global transformations.
Drive Innovations:
— Influence the industry and contribute to groundbreaking solutions.
Join a Strong Team:
— Collaborate with top experts worldwide and grow alongside the best.
Work-Life Balance & Well-being:
— Modern equipment.
— Comfortable working conditions and an inspiring environment to help you thrive.
— 24 calendar days of paid leave.
— Additional days off for national holidays.

With us, you’ll dive into the world of unique blockchain technologies, reshape the crypto landscape, and become an innovator in your field. If you’re ready to take on challenges and join our dynamic team, apply now and start a new chapter in your career!
Let’s Build the Future Together!