Platform Lead/System Architect

YouTrain; Hamburg; Hybrid; EUR 110.000 - 140.000; Vollzeit

Benefits dieser Stelle

Hybrid work model

Top equipment and XR hardware

Deutschlandticket and Wellpass

International team

Zusammenfassung

YouTrain, based in Hamburg, seeks a Platform Lead / System Architect to own the architecture of the YouTrain platform including CMS/LMS, analytics, instructor portal, and APIs. You will design a cloud-first solution with on-prem and edge support for military customers and technically lead the platform engineers.

Responsibilities include security architecture, interface design to XR clients and device management, and defining SLOs with the team.

Qualifikationen

• 8+ years of backend/platform engineering, including architect/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).
• Experience with on-premise or restricted-connectivity environments (offline/air-gapped).
• Very good English; German a plus. EU/NATO citizenship required due to our customer environment.

Aufgaben

• Design and evolve the target architecture of the training platform.
• Decide on cloud, on-premise, and offline/edge deployments and syncing strategies.
• Shape the security architecture: IAM, tenant isolation, audit logging, zero-trust.
• Provide technical leadership and code/design reviews for backend/platform engineers.
• Design interfaces to XR clients, analytics, and device management (MDM).
• Establish operations concepts, scalability, observability, and SLOs with the team.

Kenntnisse

Backend/platform engineering

Architect / Tech lead

Kubernetes

CI/CD

Infrastructure as code

Security fundamentals

English proficiency

Tools

Kubernetes

Containers

CI/CD pipelines

Infrastructure as Code

OAuth/OIDC

RBAC/ABAC

Secrets management

Zero-trust

MDM

Jobbeschreibung

About YouTrain

YouTrain builds a military XR training platform for armed forces, law enforcement, and emergency responders. Our products - DronAR, TrainAR, BrothAR, ShootAR, DrivAR, and MissionAR - combine immersive environments with real equipment, enabling scalable training for drone operations, tactical shooting, emergency driving, and mission planning. Our customers and partners include the Bundeswehr, BWI, the Cyber Innovation Hub, and Quantum Systems. We are an international, fast-growing team headquartered in the heart of Hamburg - made for those who protect us.

The Role

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.

What You'll Do

• Design, document, and continuously evolve the target architecture of the training platform.
• 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.

About You

• 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.

What We Offer

• Meaningful mission: your work improves the operational readiness of those who protect us.
• Modern office in central Hamburg with a hybrid work model - office & home office.
• International team with colleagues across Germany, Ukraine, and other locations.
• Startup environment with real ownership, flat hierarchies, and fast decisions.
• Competitive compensation aligned with experience and responsibility.
• Deutschlandticket and Wellpass (fitness & wellness programs).
• Top equipment including the latest XR hardware.
• Individual learning and growth opportunities beyond your role.