Senior Backend Engineer (Go)

About the role

Xsolla, a global commerce company that helps game developers fund, distribute, market and monetize their games, is looking for a Senior Backend Engineer (Go). You will build reliable, secure and scalable backend services and own features from design through deployment, working closely with product, frontend, design and platform teams.

Key responsibilities

• Build and ship backend services in Go, owning features from design to deployment with attention to maintainability, security and performance.
• Design and build APIs and SDKs used by business account frontends, microfrontends and other teams.
• Build identity flows such as user creation, login, MFA, SSO and token validation across multiple accounts and clients.
• Design multi-tenant services with clear data isolation and per-account configuration.
• Take part in architecture discussions and write or review ADRs; refactor legacy code.
• Own production readiness with Datadog: dashboards, monitors and alerts, APM and tracing, log analysis, incident response and root cause analysis.
• Write clear, testable, well-documented code and use AI coding assistants daily, adding AI-assisted code review and helping the team set good practices.
• Mentor engineers, contribute to technical scoping and estimation, reduce technical debt and improve the developer experience.

Required profile

• 6+ years of professional software engineering experience.
• 2+ years of hands-on Go experience in production.
• Good written and spoken English, able to explain technical trade-offs to non-technical stakeholders.

Required skills

• PostgreSQL and/or MySQL, including schema design and query performance.
• REST APIs (gRPC a plus); Docker, Kubernetes and Helm.
• Message brokers such as RabbitMQ or Kafka; Git and CI/CD pipelines (GitLab preferred).
• Authentication basics: OAuth2, JWT, sessions and tokens.
• Observability tools, ideally Datadog (metrics, logs, APM/traces, alerting).
• Working knowledge of frontend technologies, especially React; basic understanding of cloud platforms (Google Cloud Platform preferred).
• Nice to have: experience with login platforms, OAuth2/OIDC/SAML, multi-tenant identity systems, OpenTelemetry, SLOs and error budgets, and AI workflows for a team.