About Reonic At Reonic, we’re on a mission to simplify renewable technology with our B2B SaaS solutions for solar, storage, and heat pumps. Backed by top-tier investors and trusted by 1,000 business customers, we’re looking to extend our engineering team with a Backend Developer—and we need YOU to help us build a team that drives this mission forward. What you will do ✨ ️ Backend Development : Design and implement robust, scalable backend solutions in TypeScript for our B2B SaaS platform, driving key product features and integrations. ☁️ Cloud Infrastructure : Work on fully automated solutions to ensure reliable continuous integration using GitHub Actions and fully automated deployment to AWS. ️ Database Administration : Monitor the health of our PostgreSQL systems, identify performance issues and implement solutions. What Makes You a Great Fit ✅ Proven Expertise : 4 years of experience in backend software engineering and server-side technologies, preferably in a startup or fast-paced environment. Technical Excellence : Write clean, maintainable code and documentation. Tech Stack Alignment : Knowledge of Node.js, TypeScript, PostgreSQL, AWS, GraphQL and Docker. System Operations Awareness : Understanding of automated deployment, observability and performance factors. Renewable Enthusiasm : A genuine interest in clean energy solutions and sustainability. Bonus point : Open-source contributions or other personal achievements in the tech community. Why Join Us? A pivotal role in a fast-growing VC-backed startup building a product already loved by 1000 paying B2B customers Be part of a fast-growing company that’s making a tangible impact in the renewable energy sector Nothing is set in stone - You get to shape your workplace Learning new things is part of your job A competitive salary package ️♂️ Perks include gym membership, coffee, regular team events, MacBook & more Location This is a full-time, in-office position. Our Berlin office is located at Alexanderplatz, with an additional office in Augsburg for those located in the southern part of Germany. Ready to shape the future of renewable energy? Apply now! If you're a talented, ambitious Backend Engineer with a passion for clean energy, we want to hear from you!