Senior backend developer (fullstack)

BE PART OF THE EXITLAG CLAN GPTW certified company Great Place to Work Are you a fan of games, technology, and challenges that make a difference? ExitLag could be your next big mission. We are the world s first AI-powered game optimization platform, ensuring maximum performance and connection stability for millions of players in over 190 countries. Born in Brazil, we operate with a global culture, high performance, and a total focus on user experience. Here, gaming is serious business, and we always deliver in PRO mode. Why work at ExitLag? We are GPTW Great Place To Work A high-performance team, strong culture, and people who truly believe in what they do. Impact beyond gaming Your work transforms the experience of millions of gamers around the world. Growth + Real challenge An environment that accelerates your technical and professional development with autonomy and delivery. Global Mindset We are Remote First and work on global projects. Where you are never limits how far you can go. Job Purpose We are looking for a Senior Backend Developer with full-stack vision to work on highly complex technical products that have a direct impact on the business and strong integration between backend, frontend, and infrastructure. This position is backend-driven: the main focus is architecture, data mastery, performance, and integrations. Frontend knowledge is important to ensure autonomy, delivery quality, and good collaboration with the product team. Responsibilities Backend (main focus) Design, develop, and evolve scalable and high-performance APIs Work extensively on service architecture, code organization, and standards Work with messaging, asynchronous jobs, and events Ensure technical quality: testing, observability, logs, and metrics Actively participate in strategic refactoring and legacy system evolution Collaborate on technical decisions with Tech