About the Client Our client is a growing international fintech company providing crypto payment solutions. With a fully remote and distributed team, they focus on delivering secure, high-quality infrastructure that supports a wide range of merchant tools and internal systems. The company values long-term collaboration, clean code, and strong product ownership. Role Overview As a Back-End Developer, you’ll work on improving and extending a production-ready payment infrastructure built in PHP/Symfony. You’ll collaborate closely with front-end engineers, product managers, and QA to develop robust APIs, optimize business logic, and help drive new features for merchants and users worldwide. Key Responsibilities - Improve and maintain existing PHP/Symfony microservices. - Build scalable APIs for crypto payment flows and merchant tools. - Collaborate with FE, QA, product, and support teams. - Contribute to security, compliance, and system certification efforts. - Write clean, maintainable code with strong attention to edge cases and scalability. - Participate in refactoring and architecture discussions. - Troubleshoot issues and support ongoing optimization. Requirements: - Strong experience with PHP and Symfony framework. - Solid knowledge of microservice architecture. - PostgreSQL experience and API development skills. - Familiarity with secure coding practices and SDLC. - English fluency (technical interview will be in English). Key Soft Skills - Self-managing and proactive mindset. - High attention to detail. - Collaborative in remote teams. - Product-focused thinking. What We Offer - Fully remote position with flexible hours. - Work with an international, product-driven fintech team. - Long-term collaboration with professional growth opportunities. - Competitive compensation (crypto payments available). - A stable, friendly team environment with low turnover.