Backend Engineer

About the Role

Join a fast-moving energy technology company building the operating system for the next generation of energy in Europe. This role sits on the core infrastructure team, where you'll architect and scale systems that power modular billing engines, low-level energy-market communication protocols, and full accounting ledgers. If you're energised by deep technical complexity and want your work to have a direct impact on European households and energy markets, this is the role for you.

What You'll Do

• Solve for complexity through design — tackle hard architectural problems and design systems that remain clean and maintainable as they scale.
• Scale the core — build and evolve the backbone infrastructure that supports dynamic electricity plans and reliable billing at scale.
• Bias for action — ship with speed and confidence; move projects forward decisively in an ambiguous, fast-paced environment.
• Raise the bar — champion engineering excellence through code reviews, technical discussions, and leading by example.

What We're Looking For

Must-have:

• Proficiency in backend development using TypeScript (Node.js) with a strong grasp of asynchronous programming — this is a dealbreaker requirement.
• Hands-on experience with PostgreSQL and at least one ORM (Drizzle preferred) for data access.
• Experience with Next.js, including API routes or server components for backend services.
• Familiarity with distributed systems concepts and designing scalable, maintainable core services.
• C1+ English language proficiency (written and verbal).

Nice to have:

• Experience integrating Stripe payments and related billing flows.
• Exposure to the broader stack: Temporal, Hono, Tailwind, Fragment.
• Strong CS fundamentals — formal degree or equivalent practical experience.
• Ownership mindset with strong written and verbal communication skills.

Tech Stack

• Languages & Frameworks: TypeScript, Node.js, Next.js, Hono
• Database: PostgreSQL, Drizzle ORM
• Infrastructure & Tooling: Temporal, Stripe, Fragment
• Frontend: Tailwind CSS

Compensation & Benefits

• Salary: $80,000 – $120,000 per year (USD equivalent)
• Visa sponsorship: Available
• Opportunity to work at the forefront of European energy markets with a high-ownership, low-bureaucracy team

Location

This is an on-site role based in Berlin, Germany. Candidates must be willing to work from the Berlin office. Visa sponsorship is available for the right candidate.