(Senior)Backend Engineer (Golang)

About the Role / Project We’re building a white-label Android game distribution platform from the ground up — supporting game distribution, in-app payments, large-file delivery, and independent operation by multiple partners (multi-tenant). We’re looking for a strong backend engineer to own the server-side architecture and core services that power the entire platform. 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 xsolla.com.

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)

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

Gaming Requirements: At least 3+ of the following

Understanding of the Chinese gaming industry Experience in Chinese game building, publishing, operation on main Chinese gaming platforms Experience in backend development for game or game platform Familiarity with server-side integration of game SDK (accounts, in-app purchases, real-name verification) Familiarity with in-app purchase (IAP), virtual goods, orders Experience with multi-tenant SaaS / white-label platform architecture

Nice to have: 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.