Backend Engineer

About The Role Join a fast-moving energy tech startup building the operating system for the next generation of energy. The platform powers modular billing engines , low-level energy-market communication protocols, and a full accounting ledger — enabling dynamic electricity plans that help businesses and consumers significantly reduce energy costs. As a Backend Engineer on the core infrastructure team , you'll design and scale the foundational systems that make all of this possible. You'll work across billing, payments, and distributed data services in a high-ownership, low-bureaucracy environment. What You'll Do Solve for complexity through design — architect clean, maintainable solutions to genuinely hard infrastructure problems. Scale the core — build and evolve the services that power billing, energy-market integrations, and accounting at scale. Bias for action — move fast, ship iteratively, and take end-to-end ownership of your work. Raise the bar — contribute to engineering standards, code quality, and team practices. What We're Looking For Must-haves: Proficiency in backend development with TypeScript (Node.js) and a strong command of asynchronous programming patterns. Hands-on experience with PostgreSQL and an ORM — ideally Drizzle — for robust data access layers. Experience with Next.js, including API routes or server components used for backend services. Familiarity with distributed systems concepts and designing scalable, maintainable core services. C1+ English proficiency (written and verbal). Strong CS fundamentals — whether from a formal degree or equivalent practical experience. Nice to have: Experience integrating Stripe payments and related billing workflows. Familiarity with workflow orchestration tools (e.g. Temporal) or API frameworks (e.g. Hono). Background in energy, fintech, or other regulated/complex-domain infrastructure. Soft skills: Strong written and verbal communicator. Ownership mindset — you treat problems as yours to solve, not to hand off. Comfortable operating in a fast-paced, ambiguous early-stage environment. Tech Stack Languages / Frameworks: TypeScript, Node.js, Next.js, Hono Data: PostgreSQL, Drizzle ORM Infrastructure / Tooling: Temporal, Stripe, Tailwind Compensation & Benefits Salary: $80,000 – $120,000 USD per year (or local equivalent) Visa sponsorship available High-impact role at an early-stage company with significant ownership and upside Location This is a fully on-site role based in Berlin, Germany . Candidates must be able to work from the Berlin office. Visa sponsorship is available for the right candidate.