Principal Engineer – Identity & Golang
Xsolla is a video game commerce company that provides a suite of tools and services—including merchant of record payment processing, tax management, fraud prevention, compliance, refunds, dispute management, and end-user support—to help game developers and publishers launch, grow, and monetize their games globally. It serves video game developers, publishers, and studios of all sizes across global and regional markets.
About Xsolla
Xsolla connects the tools, systems, payments, and web shops used by the video games industry, positioning itself as a global merchant of record supporting over 1,000 payment methods and a cumulative audience of 50 million, with transaction fees around 5%. Its services include tax management, fraud monitoring and prevention, global and regional regulatory compliance, refund and dispute management, and end-user payment support. Xsolla's product lineup includes the Xsolla SDK for native in-app payments on side-loaded apps and alternative app stores, a Buy Button enabling link-out purchases from iOS mobile games in the U.S., and Web Shop for building customized, direct-to-consumer game storefronts. The company works with major gaming industry partners and clients such as Mytona, Ubisoft, MARVEL SNAP, and others, and highlights partner success stories, industry events, and its own culture and hiring initiatives on its site.
Skills
About the Role
You will lead the evolution of Xsolla's authentication and authorization stack, enabling developers and players to connect safely and effortlessly across the ecosystem. You will architect the next-generation identity platform, build high-performance Golang microservices, and collaborate with security, DevOps, and platform engineering teams to embed Zero Trust principles. You will integrate modern IAM standards, mentor engineering teams on secure service design, and partner with product teams to deliver scalable and compliant identity features.
Requirements
- 10+ years in backend or systems engineering, including 5+ years designing and implementing authentication and authorization services
- Expert-level skills in Golang, with experience building and scaling distributed, event-driven microservices
- Proven track record with identity federation, token management, and access control systems
- In-depth understanding of authentication and authorization standards (OAuth 2.0, OIDC, JWT, SCIM)
- Solid grasp of security principles, encryption, key management, and secrets management systems (e.g., HashiCorp Vault, AWS KMS)
- Experience building high-availability systems in Kubernetes-based environments using AWS or GCP
- Strong architectural vision with the ability to influence cross-team design and technology direction
- Excellent communication and collaboration skills across distributed teams
Responsibilities
- Architect and lead the design of Xsolla's next-generation identity platform, supporting authentication, authorization, single sign-on (SSO), and account federation
- Develop high-performance Golang microservices that manage user identity, access tokens, and permission enforcement at global scale
- Collaborate with security, DevOps, and platform engineering teams to embed Zero Trust principles and standardize access governance
- Integrate modern IAM standards and protocols (OAuth2, OIDC, SCIM) to enhance developer experience and partner integrations
- Mentor and coach engineering teams on secure service design, identity best practices, and cross-service communication patterns
- Partner with product teams to ensure identity-related features are scalable, compliant, and user-friendly
- Define and enforce API and data security standards, supporting compliance initiatives
- Evaluate and integrate third-party identity frameworks or open-source solutions as part of Xsolla's hybrid identity strategy
Benefits
- 100% company-paid medical, dental, and vision plans
- Unlimited Flexible Time Off
- Personalized career roadmap