Cosuno

Cosuno is a fast-growing tech startup reshaping the construction industry with a digital procurement platform that uses AI to analyze price points and help construction companies create bids based on market data. They are hiring two senior roles: Senior Full Stack Developer (TypeScript) — Location: Remote (EU) / Berlin. Mission: take full ownership of frontend and backend features, extend and maintain the platform, work in trunk-based development with daily releases, comprehensive end-to-end testing and a solid CI/CD pipeline. Requirements: 5+ years hands-on engineering experience, strong JavaScript/TypeScript expertise, experience with Node.js (React is a plus). Senior AI Engineer – LLMs & Agents — Location: Remote (EU) / Berlin. Mission: build agentic workflows using state-of-the-art LLMs, lead technical development of an agent for processing and validating construction documents, establish and enforce MLOps and LLMops best practices. Requirements: 5+ years engineering experience, at least 1 year working with LLMs, strong Python, experience deploying containerized services (Docker, Kubernetes), deep expertise in at least one area such as deep learning (PyTorch, Transformers), ranking/matching algorithms, or LLMops (RAG, evals, fine-tuning). For full job descriptions and to apply see the careers page.