Founding Engineer (Backend/Platform & LLM)

At Routine Labs , we are building Europe's first secure, auditable, and EU-compliant automation infrastructure for legacy systems. We're taking a practical approach to improving how engineers work with AI systems. Combining LLMs with familiar software engineering methods to make it easier for people to build, modify and maintain software automations. Our platform lowers the effort required to turn natural-language instructions into deterministic, testable code that can interface with and automate legacy systems. We're hiring a Founding Engineer (Backend/Platform & LLM) to help deliver our v1 platform, shape our engineering standards, and take ownership of the backend and LLM components that make reliable, predictable code generation possible. Tasks Build and evolve our Python/FastAPI backend, typed data contracts, Postgres models, and deterministic code-gen pipeline (structured outputs, snapshot tests). Implement and tune LLM orchestration pipelines: RAG flows, agent workflows, evaluation harnesses, tracing, fallback logic, and cost/latency controls. Own CI/CD, IaC, migrations, SLOs/SLIs, observability, and the reliability of production systems. Integrate secure multi-tenant SSO (OIDC/SAML) with RBAC and audit trails for early healthcare pilots. Collaborate closely with the founders, influence product direction, and establish engineering standards. Requirements 6–10+ years as a senior/principal backend or platform engineer with end-to-end ownership of production services. Strong experience with Python 3.10+, FastAPI, Postgres, SQLAlchemy/Alembic, Docker, CI/CD. Hands-on with LLM systems in production (RAG/agents, evaluation, tracing, performance/cost optimization). Solid operational mindset: SLOs, incidents, rollbacks, migrations, and running systems that “just work.” Experience integrating Auth0/Keycloak/Okta and OAuth2/OIDC/SAML for multi-tenant environments. Nice addition: Playwright/pywinauto, vector DBs (pgvector/Qdrant), Temporal/Kafka/SQS, HIPAA/SOC2 exposure. Benefits Direct collaboration with the CTO, CPO and founding team Competitive compensation package including Virtual Share Options (VSOPs) True ownership and a green field to shape the technical foundation of the product Perks such as Urban Sports Club, Workations, Offsites, Deutschland Ticket Join the team shaping the technical foundation of a company redefining how legacy software gets automated. We value diverse perspectives and welcome candidates of all genders, identities and backgrounds. Find more English Speaking Jobs in Germany on Arbeitnow