Founding Engineer

Requirements

🌟 What makes you a great fit

• Languages and Frameworks – You have worked in Python and frameworks like FastAPI , Pydantic, SQLAlchemy. You are familiar with TypeScript and frontend libraries like React and are able to build intuitive interfaces for complex workflows
• AI and LLMs – You have practical experience with prompt engineering and agentic frameworks (e.g. PydanticAI, Google ADK, LangGraph). You may even have production experience with LLM observability and evaluation
• Most importantly , you are a fast learner who is eager to learn any technology required to solve the problem at hand
• High Agency – You see a critical problem outside your immediate scope, like an infrastructure bottleneck or a customer friction point, and you fix it without being asked, exercising good judgment while doing so
• Pragmatic & Fast – You value "good enough to ship" over "perfectly engineered.” You use AI assistants (e.g. Cursor, Copilot, Gemini) to automate the mundane so you can focus on the highest-value tasks
• Nice-to-Have’s – German Language Proficiency – While English is our primary language, German fluency is a strong plus to help us better support our core industrial customer base

Benefits

📦 The opus package

• Competitive compensation + meaningful equity – real ownership in opus’ long-term success
• Impact from day one – high ownership, fast customer feedback, responsibility for outcomes
• AI-first, builder environment – the best tools, low overhead, strong bias to ship and learn
• 28 vacation days & flexibility when you need to recharge

🧑‍🚀 Our interview process

• Phone Screen (30 min) - Quick intro to align on the role, your background, and timing before you commit real time
• Discovery Call (30 min) - We get to know each other and talk about culture, agency, judgment, and how you think about products
• Coding Assessment (60 min) - A hands-on session focused on execution and pragmatism, including how you use tools (and AI) to ship
• System Design (60 min) - Deep dive into architecture and technical strategy: trade-offs, scalability, and long-term thinking
• Founder Interview (30 min) - Final conversation to align on mission, communication, expectations, and mutual fit

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Source: Statistisches Bundesamt (Destatis), table; dl-de/by-2-0; StarIn's calculation