Backend Engineer (Mid-Level)
clera · Berlin · onsite
ABOUT THE ROLE
Join the core infrastructure team at an early-stage energy technology company, building the backend systems behind dynamic electricity plans and reliable billing. You will help develop scalable services for billing and energy-market communication.
WHAT YOU'LL DO
- Design backend systems that reduce complexity in billing and energy-market workflows.
- Scale core infrastructure to support growing transaction volumes and market demands.
- Ship features and improvements through rapid iteration and practical engineering decisions.
- Raise technical standards through code reviews, architecture decisions, and mentorship.
WHAT WE'RE LOOKING FOR
- At least 3 years of hands-on experience building and shipping reliable backend systems in production.
- Strong TypeScript and Node.js skills, 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 services.
- Experience integrating Stripe payments and billing workflows.
- Strong computer science fundamentals through formal education or equivalent practical experience.
- Fluent or native-level German proficiency, C1 or higher.
- Interest in early-stage environments, an ownership mindset, and evidence of strong technical ability through projects, research, competition, or founding work.
- Broad application-building experience and clear written and verbal communication skills.
COMPENSATION & BENEFITS
Annual salary of €80,000 to €120,000. Visa sponsorship is available.
LOCATION
On-site in Berlin, Germany, five days per week.