Tech Lead (Core Systems)

Are you a hands-on tech lead who loves untangling messy systems shipping real improvements and setting a higher engineering bar

Join meinUnterricht Germanys leading platform for teachers and take ownership of the core systems that power the business behind the product. We are looking for someone who is driven and questions the status quo.

This is not a pure management job. Youll lead a small team while staying deep in the work yourself: rebuilding subscription infrastructure modernizing cloud and data foundations improving developer experience and helping define what strong platform engineering looks like.

Our Tech Stack

We believe in transparency. You will be working across both legacy and modern systems with a strong mandate to help us consolidate and modernize over time.

• Where we are going (the new stack): Monorepo architecture APIs built with Hono Prisma for DB migrations Vitest tsdown PostgreSQL Stripe and AWS CDK for infrastructure.

• What we currently have: React Redux (Hapi) MongoDB (Mongoose) MySQL Zuora and AWS (EC2 ECS CloudFront).

• Own Core Systems:Lead the technical direction for our core systems domain including subscription infrastructure cloud foundations shared backend services database architecture and data pipelines.

• Modernize the Foundation:Identify what should be kept replaced merged or removed across a decade of accumulated systems and turn that into a pragmatic target architecture with an execution path.

• Lead While Staying Hands-On:Manage and coach a small team of engineers while continuing to code deeply yourself especially on the highest-leverage technical problems

• Raise the Bar with AI:Model an AI-first engineering culture by using tools like Claude Code Codex or similar across coding migrations infrastructure and workflow automation.

• Broad Systems Depth:Strong backend (fluency in Typescript/) and infrastructure experience across areas like databases cloud services queues caching networking integrations or pipelines. Not just one narrow specialty.

• Migration Experience:You have led or played a major role in moving production systems from old to new and you understand the messy middle: dual-running rollout strategy data integrity and rollback planning.

• Technical Leadership:Youve led a small team while staying close to the code and you know how to raise standards through personal output coaching and direct feedback.

• Cloud & Platform Experience:Youre comfortable working in AWS-heavy environments and have practical experience improving infrastructure reliability and developer workflows. IaC experience is a big plus.

• AI-Native Mindset:You actively use AI tools in real engineering work and see them as a serious force multiplier not a gimmick.

• Meaningful Product:Build infrastructure behind a platform that helps tens of thousands of teachers prepare better lessons faster.

• Real Ownership:Youll own a critical systems domain with direct impact on revenue product velocity and the technical future of the company.

• AI-First Engineering Culture:We invest heavily in AI tooling (Claude Max Plan or equal) and expect engineers to use it deeply and practically in day-to-day work.

• Strong Berlin Setup:Work from our office at Potsdamer Platz with a hybrid setup that supports both focused execution and in-person collaboration.

• Meaningful Benefits:A device of your choice Deutschland Ticket or Urban Sports Club work remotely from anywhere in the world for up to 10 days per year Jobrad and more.

1. Remote Coding Challenge

2. Technical interview (Videocall)

3. System design interview (preferably on site in our offices in Berlin)

4. Leadership interview (preferably on site in our offices in Berlin)