Senior Software Engineer (PHP)

**ABOUT YOU** We’re looking for a Senior Software Engineer to join Xsolla and help build and scale the technology that powers global gaming commerce. In this role, you’ll work on high-impact projects with some of the world’s leading gaming companies, developing services that support payments, integrations, and seamless player experiences across millions of users. You bring strong expertise in PHP and Go, a solid grasp of object-oriented design, and a passion for building scalable, reliable backend systems. You’re curious about modern architectures, eager to solve complex challenges, and thrive in collaborative, fast-paced environments. If you’re passionate about backend development and want to make a real impact in the gaming industry, we’d love to hear from you. **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 [](http://xsolla.com/). ### Responsibilities - Design, build, and maintain backend services and APIs using **PHP** and **Go**, ensuring scalability, reliability, and high performance. - Develop new microservices and enhance existing systems to support large-scale integrations and high-load payment flows. - Participate in **code reviews** and maintain high development standards through collaborative feedback and best practices. - Work closely with **engineering, product, and partner teams** to deliver high-quality solutions on schedule. - Contribute to **system monitoring** using tools such as **Grafana**, **Kibana**, and **ELK** to ensure stability and optimal performance. - Use **load testing tools** (e.g., K6) to identify and resolve bottlenecks in high-load environments. - Document technical specifications, system architecture, and new functionalities for transparency and maintainability. - Participate in **Kanban ceremonies** and maintain efficient communication with cross-functional teams. ### Qualifications & Skills - Proven experience in backend development with strong proficiency in PHP and GoLang. - Solid understanding of object-oriented programming (OOP), software design patterns, and decomposition principles. - Experience with microservices architecture and scalable backend systems. - Strong knowledge of SQL and database design, including optimization for large datasets. - Familiarity with REST APIs, GitLab, GitHub, and other development tools. - Experience using monitoring and testing tools such as Grafana, Kibana, Postman, and ELK. - Ability to work independently on complex technical tasks and deliver high-quality results within deadlines. - Strong communication skills and ability to collaborate effectively with cross-functional teams. Nice to Have - Experience with high-load systems and event-driven architectures. - Familiarity with CI/CD tools such as Docker, Jenkins, or GitLab CI. - Background in frontend development or working with single-page applications (SPAs). - Hands-on experience using AI-powered development tools (e.g., GitHub Copilot) to enhance productivity.