Team Lead, Backend Engineer

Xsolla

. Own the technical strategy and architecture of the Xsolla ID IAM platform, covering authentication, authorization, and session management at scale .

Posted 10/2/2026full-timeRemote • RussiaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates deep expertise in OAuth 2.0, OIDC, and IAM systems, with a strong focus on security architecture and web security fundamentals. Proven ability to lead engineering teams, drive technical strategy, and deliver mission-critical infrastructure while balancing security and delivery timelines.

Highest-signal resume keywords

OAuth 2.0 / OIDC ExpertiseGo Programming LanguageWeb Security FundamentalsDistributed Systems ExperienceTeam Leadership

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

OAuth 2.0OIDCGoMySQLPostgreSQLRedisDockerKubernetesJWTSecurity Best Practices

Soft Skills

Strong CommunicationTeam MentoringPerformance Management

Tools & Technologies

CockroachDBOry EcosystemNATSKafkaWebAuthnFIDO2

Industry Keywords

FintechPaymentsGaming Identity SystemsSOC 2ISO 27001PCI DSSGDPR

Tech Stack

Tools & technologies

Distributed SystemsDockerKafkaKubernetesMySQLPostgresRedisSQLWeb3Go

About the role

Key responsibilities & impact

Own the technical strategy and architecture of the Xsolla ID IAM platform, covering authentication, authorization, and session management at scale
Design and evolve OAuth 2.0 / OIDC flows, token lifecycle strategies, and security primitives
Lead decisions on the Ory ecosystem, custom authentication methods, and the Auth API orchestrator/plugin architecture
Own web security fundamentals across the platform
Drive CockroachDB strategy for geo-distributed data residency
Review complex security-critical code and ensure best practices
Drive zero-downtime migration from legacy Xsolla Login with bidirectional identity synchronization
Identify systemic risks and performance bottlenecks and lead remediation initiatives
Make key decisions on system design, security architecture, and technology choices
Maintain hands-on contribution to critical security features
Lead and mentor up to 8 backend engineers
Conduct 1:1s, performance reviews, and career development conversations
Hire and onboard team members with IAM/security expertise
Foster a security-first culture and manage team workload and delivery commitments
Own delivery predictability for the mission-critical platform
Collaborate with Product to define the IAM roadmap and priorities
Coordinate with dependent product teams including Xsolla Pay, Wallet, App, and Backpack
Report on security posture, platform reliability, and team progress

Requirements

What you’ll need

5+ years of commercial experience with Go, or 7+ years with other backend languages with Go proficiency
Deep expertise in OAuth 2.0 / OIDC and IAM systems
Knowledge of authorization code + PKCE, client credentials, device flow, token introspection, and refresh strategies
Understanding of JWT, token refresh flows, and session management
Knowledge of password hashing (bcrypt, Argon2) and secure storage
Web security fundamentals: cookie security, CSRF, XSS, TLS, and secure session management
Strong knowledge of MySQL/PostgreSQL and Redis
Experience with distributed systems and their trade-offs
Experience with high-availability system design meeting 99.9%+ uptime requirements
Understanding of security best practices and common vulnerabilities (OWASP)
Experience with Docker, Kubernetes, and production deployments
2+ years of experience leading engineering teams
Track record of delivering mission-critical infrastructure
Ability to lead multi-quarter technical initiatives across teams and influence architecture beyond the immediate team
Experience with security-focused code review processes
Strong written and verbal communication, including RFCs and design documents
Ability to balance security requirements with delivery timelines
Hands-on experience with the Ory ecosystem preferred
Experience with CockroachDB or other distributed SQL databases preferred
Experience with NATS or Kafka preferred
Experience with WebAuthn/FIDO2 passkey implementations preferred
Knowledge of Web3 authentication preferred
Experience with SCIM, SAML, or enterprise SSO preferred
Background in fintech, payments, or gaming identity systems preferred
Familiarity with SOC 2, ISO 27001, PCI DSS, GDPR data minimization, and audit logging preferred
Contributions to open-source security or identity projects preferred
Background in platform or infrastructure engineering preferred
Experience with large-scale user migrations preferred
Practical, up-to-date experience with modern AI tools preferred

Benefits

Comp & perks

Unlimited Flexible Time Off for work-life balance
Private health insurance (ДМС) with dental coverage for you and your family
Personalized career roadmap with clear growth paths
Professional development through training, security certifications, and conferences
Annual corporate events and team gatherings
Remote-first culture with flexible working hours (10:00–19:00)
Leadership development programs and executive coaching
Competitive compensation reflecting leadership and security expertise