Join Our Mission to Fight Climate Change as our (Senior) Full Stack Engineer!

Want to be part of one of Europe's fastest-growing climate tech startups? We are looking for a passionate Senior Full Stack Engineer to play an elementary role in helping us transform every company into a sustainable business.

In this key role, you will be a hands-on product engineer, using our state-of-the-art tech stack to solve real user problems that will positively impact the sustainability of our climate.

If you are excited about building an economy where every company creates an impact for a sustainable world and empowering companies to decarbonize and boost their business performance, we’d love to hear from you!

You are ideally located in Germany (Berlin, Hamburg, Munich, Cologne, Bonn), Portugal (Lisbon), or the UK (London)

🔍 What you’ll do

• You take responsibility for new features, design and implement them
• You contribute to improving the Cozero product by being a sparring partner to the Product Manager
• You will make architecture decisions as a key member of our engineering team
• You will participate in discussions on how to maintain and improve our micro-service architecture
• You will work closely with senior engineers to identify and mitigate tech debt
• You plan, code, test, QA, and deploy

Our Tech Stack: We run on AWS, TypeScript, NestJS, React, and more. As a Full Stack engineer, we trust you can get quickly up to speed on our technology stack, so if you don’t have experience with parts of our stack, you will be able to learn a lot!

💡 We think you’ll thrive in this role if you:

• You bring around 5+ years of relevant hands-on experience in product development across our stack, including Frontend (React, Redux), backend (NestJS), and data (PostgreSQL)
• You write well-structured and high-quality code that’s easily maintainable by others
• You are passionate about ClimateTech and have a strong commitment to fighting climate change
• You are self-driven and capable of working with minimal supervision
• You speak fluent English with excellent written and spoken communication skills.
• You are ideally located in Germany (Berlin, Hamburg, Munich, Cologne, Bonn), Portugal (Lisbon), or the UK (London)

💚 Why Cozero?

We’re building the first Climate ERP system for companies - a software platform to measure, manage, and reduce corporate carbon emissions with confidence. Backed by €6.5M Series A funding (led by Kvanted and ENV), we work with global leaders like Maersk, Nippon Express Europe, and DMG MORI.

At Cozero, we believe that great products are built by empowered teams. You’ll work closely with our co-founders Fabian, Helen, and Tiago in a highly dynamic, multicultural, and purpose-driven environment.

💼 What We Offer

• 27 vacation days per year + National holidays.
• Regular team events and at least 2 offsites per year.
• One-time €500 home office equipment stipend.
• €500 annual learning and development budget.
• €100 Monthly coworking budget for employees outside of Berlin.
• Participation in Cozero's Virtual Stock Option Plan (VSOP).
• A strong company culture focused on growth, collaboration, and fighting climate change.

How to Apply

We strive to build a diverse, inclusive, and collaborative workplace and follow a fair, objective, and non-discriminatory recruitment process. All applications will be considered for employment regardless of nationality, culture, or any other personal characteristics. If you need any special requirements during the interview process, please do let us know.

We look forward to receiving your application and exploring how you can contribute to our mission to combat climate change.