(Senior)Backend Engineer (Golang)

#### ABOUT US Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game. For more information, visit . **ABOUT YOU** We are looking for a Senior Backend Engineer who is systems-minded, detail-oriented, and passionate about building scalable infrastructure to join our Platform Engineering team. The best candidate will be someone who thrives in a fast-paced, highly collaborative, and exceptionally dynamic setting and is excited to design and own the server-side architecture of a white-label game distribution platform, tackling challenges in multi-tenancy, large-file delivery, and high-concurrency systems. Strong command of GoLang and solid experience in microservices and distributed systems are essential, along with experience in building backend services for content distribution, app stores, or gaming platforms. The ability to collaborate with cross-functional teams and drive technical decisions on performance, security, and observability will be key to your success in this role. If you’re passionate about building robust, high-performance backend systems that power game distribution at scale and love solving complex infrastructure problems in the gaming ecosystem, we would love to hear from you! ### Responsibilities - Design, build, and maintain the backend services for the game distribution platform, with a highly available and scalable server-side architecture - Design and implement a multi-tenant architecture supporting data isolation - Design and implement the storage and delivery solution for large game files (object storage / CDN, signed download URLs, resumable downloads, version management) - Build backend APIs and permission systems for the operations admin panel and publisher portal - Design and deliver the search solution (e.g., Elasticsearch) to power full-text search and filtering of games - Ensure system performance, concurrency, security, and observability (monitoring, logging, alerting) - Game industry experience required - On-site position only (remote work not available) ### Requirements - Degree in Computer Science or a related field, with 5+ years of backend development experience - Strong command of GoLang - Proficiency with AI coding tools (Claude Code, Gemini, etc.) - Solid RESTful API design skills; familiar with microservice architecture - Familiar with relational database (MySQL/PostgreSQL) design and optimization; knowledge of NoSQL (Redis, etc.) - Familiar with message queues (Kafka/RabbitMQ), caching, and other middleware - Solid engineering fundamentals: coding standards, unit testing, Git, CI/CD ### Nice to have - Understanding of the Chinese gaming industry and experience in Chinese game building, publishing, or operation on major Chinese gaming platforms - Experience in backend development for games or game platforms - Familiarity with server-side integration of game SDKs (accounts, in-app purchases, real-name verification) - Familiarity with in-app purchase (IAP), virtual goods, and order management - Experience with multi-tenant SaaS / white-label platform architecture - Familiarity with Elasticsearch - Experience designing and optimizing high-concurrency, high-traffic systems - Experience with app stores or content/game distribution platforms - Knowledge of object storage and CDN, with experience in or awareness of large-file / high-concurrency delivery *Note: Less experienced candidate could be considered as middle-level developer.*