Backend Engineer

About the Role

Join a pre-seed-funded energy tech startup that is building the operating system for the next generation of energy. The core infrastructure team is developing a modular billing engine, low-level energy-market communication protocols, and a full accounting ledger — enabling dynamic electricity plans and reliable billing for hardware OEMs, installers, and energy providers across Europe. As a Backend Engineer, you will help shape scalable, maintainable systems at the heart of this platform.

What You'll Do

• Solve complex infrastructure and domain challenges through thoughtful system design.

• Scale core backend services to support growing energy platform workloads.

• Move quickly and take ownership — bias for action in a fast-paced, ambiguous environment.

• Raise the engineering bar through code quality, architecture decisions, and collaborative standards.

• Build and maintain API routes and server-side services using TypeScript (Node.js) and Next.js.

• Work with PostgreSQL and Drizzle ORM for reliable, performant data access.

• Integrate and extend Stripe-based billing and payment flows.

What We're Looking For

• Required: Proficiency in backend development using TypeScript (Node.js) with a strong grasp of asynchronous programming.

• Required: Experience with PostgreSQL and at least one ORM (Drizzle preferred) for data access.

• Required: Experience with Next.js, including API routes or server components used for backend services.

• Required: Familiarity with distributed systems concepts and designing scalable, maintainable core services.

• Required: C1+ professional language proficiency (English).

• Experience integrating Stripe payments and related billing flows.

• Strong written and verbal communication with an ownership mindset.

• Strong CS fundamentals — formal degree or equivalent practical experience (3–10+ years of relevant backend experience).

Tech Stack

• TypeScript, Node.js, Next.js

• PostgreSQL, Drizzle ORM

• Temporal, Hono, Stripe

• Tailwind (front-end context)

Compensation & Benefits

• Salary range: $80,000 – $120,000 USD annually

• Visa sponsorship available

Location

This is an on-site role based in Berlin, Germany. Candidates must be able to work from the Berlin office.