Backend Engineer - Core Infrastructure

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:

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• 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).

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• 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

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• 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.