Product Engineer

About the Role Join a small product engineering team at an early-stage energy technology company. You will work closely with customers and take full-stack solutions from discovery to production, helping simplify complex energy retail challenges through intuitive, production-ready products. What You'll Do Work with customers to understand their problems and use those insights to guide product and engineering decisions. Build and ship end-to-end features across the stack, from early discovery through production. Use AI-native development tools such as Claude Code or Cursor to accelerate development and expand your impact. Own zero-to-one initiatives, including customer payment and retention workflows and customer portal improvements. Make thoughtful decisions about what to build, defer, or stop, based on user and business needs. Address energy retail challenges such as billing, procurement, retention, and cost optimization. Help shape engineering culture, tools, and processes, and contribute to raising the team's technical bar. What We're Looking For Typically 2 to 13 years of experience, with shipped product work and demonstrated technical ability valued more than résumé tenure. Strong full-stack skills and experience taking products from discovery through production. Fluency in German at C1 level or higher. Comfort using AI-native development tools as practical force multipliers. Evidence of exceptional technical ability through shipped projects, founding work, competitions, research, or comparable experience. Experience or strong interest in energy retail, including billing, procurement, customer retention, or cost optimization. High ownership, sound judgment, and comfort working in an ambiguous early-stage environment. Compensation & Benefits Base salary: €80,000 to €120,000 annually. Visa sponsorship is not available. Location On-site in Berlin, Germany, normally five days per week.