Backend Engineer
Summary
Backend Engineer at clera building infrastructure for energy technology, focusing on billing, market communication, and real-time electricity pricing systems using TypeScript, Node.js, and PostgreSQL.
About the Role
Join the core infrastructure team of a fast-growing energy technology company building the operating system for the next generation of European energy. The platform combines a modular billing engine, low-level energy-market communication protocols, and a full accounting ledger — delivered as a headless, API-first layer that enables hardware companies and energy providers to launch dynamic electricity plans rapidly.
As a Backend Engineer, you will work across highly complex, distributed systems that power real-time electricity pricing, billing, and market integrations. This is a high-ownership role for engineers who love designing for scale and operating with autonomy in a fast-moving environment.
What You'll Do
Solve for complexity through design — Architect clean, maintainable solutions to inherently hard infrastructure problems in energy billing and market communication.
Scale the core — Contribute to scalable, reliable backend services that handle dynamic pricing, billing flows, and ledger operations at volume.
Bias for action — Move quickly and decisively; ship meaningful work and iterate with purpose.
Raise the bar — Uphold and improve engineering standards through code review, documentation, and thoughtful system design.
What We're Looking For
Required:
Bachelor's degree in Computer Science or equivalent practical experience
3–10+ years of backend engineering experience
Proficiency in TypeScript (Node.js) with a strong grasp of asynchronous programming
Hands-on experience with PostgreSQL and an ORM (experience with Drizzle is a plus)
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
Experience integrating Stripe payments and related billing flows
Strong written and verbal communication skills in English
Ownership mindset and ability to operate effectively in a fast-paced, ambiguous environment
Willingness to work on-site in Berlin, Germany
Nice to Have:
Familiarity with workflow orchestration tools (e.g., Temporal)
Experience with lightweight HTTP frameworks (e.g., Hono)
Background in energy, utilities, fintech, or similarly regulated/complex domains
Tech Stack
Languages & Frameworks: TypeScript, Node.js, Next.js, Hono
Database: PostgreSQL, Drizzle ORM
Payments: Stripe
Orchestration: Temporal
Frontend (context): Tailwind CSS
Compensation & Benefits
Salary: €80,000 – €120,000 per year, depending on experience
Visa sponsorship is available for qualified candidates
Early-stage equity opportunity at a well-backed pre-seed company
Location
This is a full-time, on-site role based in Berlin, Germany. The team works together in-person and values close collaboration. Relocation support and visa sponsorship are available.