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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.
Responsibilities
- 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.
Requirements
- At least 3 years of hands-on experience building and shipping reliable backend systems in production.
- 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.
Skills
- TypeScript
- Node.js
- Asynchronous programming
- PostgreSQL
- ORM-based data access (Drizzle or similar)
- Next.js backend services (API routes or server components)
- Distributed systems
- Scalable service design
- Maintainable service design
- Stripe payments integration
- Stripe billing workflows integration
Location
- Berlin, Germany
Work Type
- On-site
- Full-time
Experience Level
- Mid-level
Education Level
- Formal education or equivalent practical experience
Salary/Compensations
- €80,000 to €120,000
Benefits
- Visa sponsorship