Software Engineer

About the Role Join a small, fast-moving engineering team at a Y Combinator–backed AI voice platform to own projects end-to-end and directly shape the product alongside customers. You'll influence core architecture decisions, ship features with real velocity, and help build the infrastructure powering thousands of AI-driven conversations every day. What You'll Do Work closely with customers to understand their problems and design product experiences that solve real challenges. Build scalable backend infrastructure to handle thousands of AI phone calls per day. Build intuitive user experiences that make sense in an AI-first world. Own high-stakes projects end-to-end — from concept through production and post-release support. What We're Looking For 2+ years of professional software engineering experience. Strong PostgreSQL experience, including complex queries, performance tuning, and optimization. Experience designing scalable backend architectures and making core product and architectural decisions. Proficiency with TypeScript, React, Node, and/or Python. Experience with scalable async processing or real-time processing systems. Experience building products for AI-first or communications-enabled platforms. Ability to own projects end-to-end and collaborate closely with customers and cross-functional teams. A track record of developing a product from 0 to 1. Familiarity with Temporal.io, Twilio, or Modal is a plus. Compensation & Benefits Salary range: €75,000 – €160,000 EUR annually . Visa sponsorship is available. Location On-site in Berlin, Germany . This role requires working from the Berlin office full-time.