Senior Backend Developer (Python, API) - Full-time - Germany

About us

We're Cortea, a Berlin-based startup transforming audits through AI technology.

The challenge: Manual audits of unstructured data and documents frustrate both auditors and regulated companies at huge cost, while demand for audits continues to skyrocket.

Our solution: AI-powered software and specialized AI-agents for auditors streamlining workflows and eliminating all repetitive tasks. Starting with IT audits for regulated companies.

With multi-million Euro funding from top-tier VCs, a working AI product, and paying customers, we're now expanding our product and scaling the team.

We value first-principles thinking, speed, trust, and the joy of tackling big challenges together!

Your Role

As our Software Engineer (Backend), you'll be an essential driver in our founding team building Cortea. Your role will focus on two crucial areas of our tech stack.

The first area is the API powering our web app. We favor RPC interfaces and handle most data transformations on the backend. We also prefer writing SQL directly rather than using ORMs. A solid understanding of relational databases is highly valuable in this role.

The second area involves RAG pipelines. While prior ML/AI experience is appreciated, it's not required. Your task will be to ensure that we build robust, safe, and scalable pipelines. This may involve working with queues and asynchronous processes, but maintaining a bias for simplicity and an 80/20 mentality is crucial.

You should also enjoy running experiments, defining evaluation criteria, and occasionally diving deep into data analysis.

Qualifications

• Expertise in building and consuming APIs
• Experience with asynchronous systems (e.g., workflow engines, long-running pipelines)
• Solid understanding of relational databases (e.g. PostgreSQL)
• Experience in Python and familiarity with at least one statically typed language (e.g., Go, Java, Rust, C# etc.)
• Familiarity with IaC standards and cloud platforms (e.g. Terraform, GCP, AWS or Azure)
• Experience in building and operating SaaS solutions, covering user management, auth*, and back-office systems

We don’t expect you to have experience in all these areas; we're looking for talented engineers who are passionate about learning, building, and delivering impactful solutions.