> Markdown version of [/jobs/ext/3287648-founding-engineer-atmo-berlin-based-hybrid](https://www.wearedevelopers.com/jobs/ext/3287648-founding-engineer-atmo-berlin-based-hybrid). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Founding Engineer - atmo (Berlin-based / Hybrid) - **Company:** ATMO Technologies GmbH - **Location:** Berlin, Germany - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Amazon Web Services, Python (Programming Language), Next.js, SQL Databases, TypeScript, Web Applications, Large Language Models, Backend, Fastapi - **Published:** September 10, 2026 - **Apply:** https://www.adzuna.de/details/5878869566 ## About the Role * Hands-on builder - you'd rather be in the codebase than in a meeting * Strong Python backend depth (FastAPI or similar, SQL, background jobs), comfortable across the stack in TypeScript/Next.js and owning infrastructure on AWS * Practical experience running LLM-based systems in production, not just prototypes: structured extraction, evaluation, cost and latency, handling failures gracefully * Comfortable working directly with scientific/domain experts, like our CSO, to turn models into shipped features * Fast-paced, get-it-done mindset - thrives in ambiguity and on a lean team, and takes ownership of technical decisions, not just tickets * Mission-aligned: genuine interest in climate, sustainable agriculture, and green finance * Bonus: exposure to fintech, agritech, or applied climate/agricultural science; German helps, as much of our farm data is German ## Description * Build, run and continuously improve the LLM pipelines at the heart of atmo's product - classifying farm records, soil samples and financial statements, extracting structured data from them, and generating bank-ready reports - from prompting and orchestration to evaluation and monitoring * Own the platform end-to-end: a Python/FastAPI backend, Next.js web apps and the AWS infrastructure they run on * Partner closely with our CSO on the scientific engine, defining the interface between science and product and turning new models into production-ready features * Make AI outputs trustworthy: evaluations, guardrails and clear provenance, so every number in a financing case can be traced back to its source * Ship fast and iterate constantly, using modern AI tooling to move with a small, high-leverage team