AS A FULL STACK DEVELOPER YOU WILL WORK WITH THE TEAM TO YOU WILL WORK WITH THE TEAM TO Design develop and maintain fullstack features across frontend and backend (PHP primary Node.js as needed). Build and support server-to-server (S2S) integrations with ad platforms (Facebook Google TikTok) and AppsFlyer. Design and maintain database schemas and optimize queries (MySQL PostgreSQL). Implement and manage caching strategies using Redis. Build maintain and improve CI/CD pipelines using GitHub Actions. Containerize and manage services using Docker. Configure and maintain Cloudflare settings (CDN security rules DNS). Actively use AI coding agents (e.g. Claude Code) as part of the daily development workflow to speed up implementation refactoring and debugging. Troubleshoot and resolve production issues ensuring system reliability and performance. Collaborate with product marketing and QA teams to deliver features aligned with business goals. Stay up to date with new tools frameworks and AI-assisted development practices and proactively suggest improvements to workflows. YOU’RE A GREAT FIT IF YOU Frontend & Backend Development Strong proficiency in PHP (primary backend language). Working knowledge of Node.js (secondary/supporting stack). Solid understanding of fullstack architecture and API design. Architecture & Design Patterns Strong knowledge of software architecture principles (e.g. MVC microservices event-driven architecture). Solid understanding of design patterns (Factory Singleton Strategy Repository etc.). Ability to choose appropriate architectural approaches based on project requirements. Experience writing clean maintainable and scalable code. Databases & Caching MySQL (schema design query optimization). PostgreSQL. Redis (caching session management queues). DevOps & Infrastructure Docker (containerization multi-service environments). GitHub Actions (CI/CD pipeline configuration). Experience building and maintaining CI/CD workflows. Cloudflare (CDN security rules DNS management Workers is a plus). Marketing & Attribution Integrations AppsFlyer integration and event tracking. Server-to-server (S2S) integrations with Facebook Google and TikTok Ads. AI-Assisted Development (Must-have) Hands-on experience working with AI coding agents (e.g. Claude Code). Understanding of agentic loops and how autonomous agents plan act and iterate. Ability to effectively prompt guide and review AI-generated code. Familiarity with best practices for integrating AI agents into development workflows. Nice to Have Experience with performance monitoring and debugging in production environments. Understanding of security best practices for payment/ad-tech integrations. Experience working in a fast-paced iterative product environment. WORK AND GROWTH IN AN ENVIRONMENT WHERE YOU CAN LAUNCH TEST AND DEVELOP NEW PRODUCTS SEE YOUR DIRECT RESULTS AND INFLUENCE THEM. SUPPORT FOR YOUR CAREER GROWTH COMPENSATION FOR EXTERNAL COURSES CONFERENCES AND ACCESS TO A CORPORATE LIBRARY. FLEXIBLE WORKING HOURS (YOU CAN START YOUR DAY BETWEEN 800 AND 1100 KYIV TIME). OFFICE IN KYIV COWORKING SPACES IN LVIV OR WARSAW OR THE OPTION TO WORK REMOTELY — THE CHOICE IS YOURS. 28 DAYS OF ANNUAL VACATION UP TO 30 DAYS OF SICK LEAVE WITH MEDICAL CONFIRMATION PLUS ALL PUBLIC HOLIDAYS. CARE FOR YOUR HEALTH MEDICAL INSURANCE A MENTAL HEALTH PROGRAM AND COMPENSATION FOR SESSIONS WITH A PSYCHOLOGIST. UKRAINIAN VICTORY SUPPORT PROGRAM AND OTHER IMPORTANT SOCIAL INITIATIVES. COMPENSATION FOR EQUIPMENT DURING BLACKOUTS.