Backend Engineer

About the Role This is a backend engineering role on the core infrastructure team of an early-stage energy tech company building the foundational layer for next-generation dynamic electricity plans. You'll work on a modular billing engine, low-level energy-market communication protocols, and a full accounting ledger — systems that need to be both highly reliable and infinitely scalable. What You'll Do Design systems that tame complexity at the architectural level, not just the code level. Scale core infrastructure to handle dynamic billing, energy trading integrations, and real-time data flows. Take decisive action in ambiguous situations, shipping thoughtful solutions without waiting for perfect information. Continuously raise the quality bar across the codebase, technical processes, and team practices. What We're Looking For 3–10+ years of backend development experience with TypeScript (Node.js) and a strong grasp of asynchronous programming. Hands-on experience with PostgreSQL and an ORM (e.g. Drizzle) for data access patterns. Familiarity with Next.js for backend services — API routes or server components. Working knowledge of distributed systems concepts and how to design scalable, maintainable services. Experience integrating Stripe payments and building billing flows end-to-end. Strong CS fundamentals — formal degree or equivalent practical experience. Clear written and verbal communication, an ownership mindset, and comfort operating in a fast-paced, early-stage environment. Compensation & Benefits Salary: €80,000 – €120,000 per year Visa sponsorship: Available Location On-site in Berlin, Germany . This role requires regular in-person presence at the Berlin office.