Why are we looking for you? KUGU makes buildings CO-2-neutral and actively shapes the energy transition! From small co-operatives to large housing companies: Demand control, system maintenance and consumption monitoring are daily challenges in property management, which is still characterised by manual processes. The solution is digital data collection, intelligent analysis and automated solutions to increase efficiency and reduce energy consumption. Our decarbonisation platform supports the housing industry with innovative products to achieve their emission targets cost-effectively! We are at the beginning of our scaling journey to become the leading data platform and are looking for you as a motivated Senior Full-Stack Developer (m/f/d) in Berlin. Join us in shaping a green future! Title: Senior Full-Stack Developer (m/f/d) Contract: Full-Time, Permanent Location: Berlin, Hybrid Start: June Your mission You independently develop and deliver features that drive real value—while owning your work from design to deployment You dive deep into technical challenges and come out with elegant, scalable solutions You work hand-in-hand with product managers and designers to turn vision into reality You contribute to the ongoing development and architecture of our platform with a proactive, solution-oriented mindset You drive quality across the board with regular code reviews, testing best practices, and thoughtful documentation You build intuitive interfaces and seamless backend integrations—including communication with external partners Your profile You have 5 years of experience working in fast-paced, agile environments You are experienced in building and consuming web APIs in production systems You have a proactive, communicative personality with solution-orientated mindset You have proven ability to own your work end-to-end with attention to detail and accountability You love thinking your way through complexity and making smart trade-offs Tech-Stake: Python Javascript/ Typescript AWS APIs, Microservices React Jest Cypress Why KUGU? We believe in a supportive and dynamic work culture and want to make a difference with our innovations. We live sustainability, have fun together & much more: Exciting Insights: Work in an exciting and growing green start-up and gain exciting insights into the energy industry Realisation of Ideas: An environment in which you can develop your skills and ideas and receive support. Career opportunities: Benefit from promising career opportunities and regular training programmes Fairness: Enjoy an attractive salary package with options such as travel expenses, pension scheme, vouchers and much more Flexibility: Workations and flexible working models that adapt to your life Delicious snacks & drinks: Look forward to cold drinks in the fridge and a wide range of tasty snacks Team Activities: Spend the evening with the team over drinks and table football in our community space, take part in our monthly mindful and cooking sessions or join us for exciting team events such as our boat party in summer Exclusive Benefits: Take advantage of cool benefits such as our pool car, sharing marketplace or control of your heating and utility bills Language Courses: Improve your English or German skills with our language courses Unique Office: Work in an industrial-style office with a gym floor in Prenzlauer Berg, with very good transport links If you are ready to take on the challenge, apply now and become part of our team! Questions? Our People Operations & Recruiting Manager Tom will be happy to help you! Simply contact him via Mail. About us We are a diverse team of international techies, designers and business wannabes. We share a passion for new technologies that do good and simplify the lives of users. Want to learn more about KUGU? Visit our website for more information about our products, customers and partners On our LinkedIn page you will find news about KUGU, our team and our projects You have not found the right position? Take the initiative - we look forward to receiving your application at jobs@kugu-home.com