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# Platform Lead/System Architect

- **Company:** YouTrain
- **Location:** Hamburg, Germany
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Audit Trail, Cyber Security, Continuous Integration, Learning Management Systems, Distributed Systems, Key Management, OAuth, OpenID, Role-Based Access Control, Zero Trust Network Access, Data Streaming, Systems Architecture, Software Technical Review, Backend, Kubernetes, Data Management
- **Published:** November 14, 2026
- **Apply:** https://www.adzuna.de/details/5964793758

## About the Role

* 8+ years of backend/platform engineering experience, including several years as an architect or tech lead.
 * Deep experience with Kubernetes, containers, CI/CD, and infrastructure-as-code in production environments.
 * Proven experience designing distributed systems (APIs, event streaming, data management, multi-tenancy).
 * Solid security understanding (OAuth/OIDC, RBAC/ABAC, secrets management, zero-trust principles).
 * Experience with on-premise or restricted-connectivity environments (offline/air-gapped) strongly preferred.
 * Very good English; German a plus. EU/NATO citizenship required due to our customer environment.

Nice-to-haves

 * Experience in defence/government or with certifications (e.g., BSI baseline protection).
 * Experience with learning platforms (LMS), analytics pipelines, or MDM solutions.
 * Experience with Unity/game backends or multiplayer infrastructure.

## Description

As Platform Lead / System Architect you own the architecture of the YouTrain platform: CMS/LMS, learning analytics, instructor portal, mission-planning services, APIs, and device management. You design a system that runs reliably and securely as a cloud solution as well as on-premise and in offline/edge environments at military customers - and you technically lead the platform engineers., * Make architecture decisions for cloud, on-premise, and offline/edge deployments (incl. synchronization and update strategies).

 * Shape the security architecture: identity & access management, tenant isolation, audit logging, hardening.
 * Provide technical leadership and mentoring for backend/platform engineers; code and design reviews.
 * Design and standardize interfaces to XR clients, analytics, and device management (MDM).
 * Establish operations concepts, scalability, observability, and SLOs together with the team.