Digitalization and the energy transition in one sentence? Yes – at Green Fusion!Our software optimizes the control of heating systems in residential buildings, helping to fight climate change. By digitalizing and automating control processes, we reduce both emissions and energy consumption – actively driving forward the energy transition.As a Senior Software Developer, you’ll join our Platforms Team and help bring our product vision to life:"Emitting less, gaining more: Transform residential buildings into auto-optimising, CO₂-neutral assets."You’ll play a key role in improving and streamlining internal collaboration by building internal tools that automate and simplify cross-team processes.<h2>Tasks</h2><ul><li>Write software – implementing features and changes end-to-end, covering the database model, backend, and frontend code.</li><li>Collaborate with your team to understand underlying problems and requirements.</li><li>Contribute to team planning by helping define tasks, priorities, and timelines.</li></ul><h2>Requirements</h2><ul><li>Solid educational background – ideally a degree in Computer Science or a related field</li><li>5+ years of professional experience in software development</li><li>Solid experience across frontend and backend – especially with TypeScript, Python, Next.js</li><li>Proficiency in at least one modern language: TypeScript, Python, Go, or Rust</li><li>Familiarity with Nest.js, SQL, or the energy sector is a plus</li><li>Ability to write high-quality, production-ready code</li><li>Able to take responsibility and work closely with other engineers</li><li>Strong communication and collaboration skills</li><li>Independent, structured working style</li><li>Fluent in both German and English</li></ul><h2>Benefits</h2>💼 Employee perks like Urban Sports Club or Become1 membership.🏠 Flexible working hours and remote work – continue working from home even post-pandemic.💡 Continuous learning – through on-the-job challenges, an open feedback culture, and supported professional development.🌱 Real impact – contribute directly to the energy transition and help fight climate change every single day.💚 Team appreciation – we value our team, which is why regular team events are an essential part of our culture.🙌 The best team Berlin has to offer – or maybe even beyond. Don’t believe it? Apply now and see for yourself!While we may still be considered pioneers today, with you on board we’re ready to take the market by storm – starting in the DACH region, and soon all across Europe.You’ll join a motivated, open-minded, and dynamic team passionate about driving the energy transition forward. We believe this mission can only succeed together.We’re excited to hear from you – Hoa will be in touch soon!

The energy-saving pilot for all boiler rooms.
We don't just digitize your boiler rooms, we automate and optimize the entire operation of your portfolio and ensure a smooth transition to regenerative systems. For maximum efficiency and sustainability in the housing industry.
Want to operate your systems intelligently? Save money, energy and CO₂? With our software, your systems optimize, control, analyze and monitor themselves: * Analysis &amp; optimization - continuous and holistic * Semi-automated or fully automated operations management - sit back and save * For conventional existing systems, complex new energy systems and a smooth transition

Senior Software Developer (m/w/d) Green-Tech Start-Up

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About the Company

Green Fusion

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