Backend Engineer

The role

You will develop scalable backend services including a modular billing engine, market communication systems, and an accounting ledger. You will design backend solutions and scale core infrastructure for an energy technology company.

What you will do

• Design backend solutions that simplify complex billing and energy-market systems
• Scale core infrastructure to support growing transaction volumes and market needs
• Ship features and improvements through rapid iteration and practical execution
• Improve technical quality through code reviews, architecture decisions, and mentorship

Required qualifications

• At least 3 years of hands-on backend engineering experience, with recent production coding and shipping
• Proficiency in TypeScript and Node.js, including asynchronous programming
• Experience with PostgreSQL and ORM-based data access, such as Drizzle or similar tools
• Experience building Next.js backend services, including API routes or server components
• Familiarity with distributed systems and designing scalable, maintainable core services
• Experience integrating Stripe payments and billing workflows
• Strong computer science fundamentals from formal education or equivalent practical experience
• Evidence of exceptional technical work through projects, research, competition results, or founding experience
• Fluency in German at C1 level or higher
• Strong communication skills
• An ownership mindset

Benefits

• Visa sponsorship is available

About the company

clera is an energy technology company building systems for dynamic electricity plans and reliable billing.