Backend Engineer (Mid-Level)
clera · Berlin · onsite
EUR 80,000 to 120,000 a year
About the RoleJoin a core infrastructure team at an energy technology company building software for dynamic electricity plans. You will develop backend systems for billing, energy-market communications, and accounting, helping make these services reliable and scalable.
What You'll Do- Design backend systems that address complex billing and energy-service requirements.
- Build and scale core services that support dynamic electricity plans and reliable billing.
- Develop and maintain backend data access and service logic.
- Contribute hands-on to production code and ship improvements with ownership.
- Help raise the quality and maintainability of core infrastructure.
What We're Looking For- At least 3 years of experience building reliable backend infrastructure.
- Proficiency with TypeScript and Node.js, including asynchronous programming.
- Experience with PostgreSQL and ORM-based data access.
- Experience building backend services with Next.js, including API routes or server components.
- Familiarity with distributed-systems concepts and scalable, maintainable service design.
- Experience integrating Stripe payments and billing flows.
- Strong computer science fundamentals through a degree or equivalent practical experience, plus evidence of exceptional technical work.
- Broad application-building experience and a hands-on record of recent production coding and shipping.
- Fluent German at C1 level or higher, with strong written and verbal communication skills.
Compensation & BenefitsAnnual salary range: €80,000 to €120,000. Visa sponsorship is available.
LocationOn-site, five days per week in Berlin, Germany.