Founding Full Stack Engineer @ ClimateTech Startup

Permanent employee, Full-time · Berlin

Deine Mission
Location: Berlin (Hybrid possible)
Experience Level: 3-5 years (Startup experience preferred)
Languages: English (required), German (a plus)
Start Date: As soon as possible

What You’ll Be Doing

You’re not just looking for a job. You’re looking for a product and a mission worth building. As our first engineer, you’ll be shaping the digital backbone of a company aiming to become Europe’s insulation champion. This isn’t just another full stack role. It’s a chance to co-create the systems that power every part of our business.

The three biggest challenges in the first year:


1. Build Our Core Platform
Lay the foundation for a robust, scalable web platform by integrating no-code/low-code tools where they make sense, and custom code where they don’t.

2. Create an Offline-First App:
Collaborate with Product and our founders to deliver a mobile-first experience that’s fast, intuitive, and functional in rural, low-connectivity areas.

3. Optimize Processes with AI Agents:
Use generative AI to streamline unpredictable workflows—for instance handling emergencies or qualifying buildings based on construction plans.

Here’s what you’ll dive into:

  • Build what matters - Work with our business automation team, who rapidly prototype using no-code/low-code tools. You’ll take the validated ideas and translate them into clean, maintainable code that scales

  • Shape the customer experience across the insulation journey – From first website visit to project handoff, your work powers our digital funnel and turns the website into a true growth engine

  • Develop tools that get used daily - Whether it’s a field technician logging insulation data offline or an ops manager overseeing dozens of projects, you’ll create tools that directly support their work

  • Code smarter with AI - Use environments like Cursor, Lovable, and other AI-assisted tools to accelerate development and build intelligent agents that reduce manual effort

  • Collaborate across the entire business – Partner with Product, Marketing, Sales, Partnerships, Ops, and Finance to turn ideas into features—with real impact and immediate feedback

  • Help choose our tech stack – Almost no legacy systems to untangle. You’ll help define how we build from day one

  • Work transparently – We share performance and business KPIs openly. You’ll always understand the why behind every feature you build

Dein Profil
  • 3 – 5 years experience building web/mobile applications in a fast-paced or startup setting
  • Strong full stack skills – modern frontend, backend, APIs, and databases
  • Hands-on, product-minded engineer with a “build, test, learn” mindset
  • Open towards no-code/low-code tools and excited by AI-native workflows
  • Tech-savvy, curious, and thoughtful in choosing the right tool for the job
  • A strong communicator who thrives in cross-functional teams


Warum wir?
  • Competitive compensation package: We will offer you a mix of cash and stock options based on your appetite for upside
  • Be part of our core-team, building in a super-hot phase of an early-stage climate-tech startup
  • Make an impact at VARM: Shape our culture and the way we work and collaborate together. Nothing is set in stone – you have a direct impact, while we are growing and building together
  • Make an impact on the earth: Do you want to make a difference in the fight against climate change? Become part of the solution and actively shape the energy transition
  • Onsite first, but hybrid work keeps us flexible: We believe that in-person collaboration is an integral part of working together, but offer flexibility for remote working
  • Grow with us: We take your personal development seriously, which includes being mentored and challenged in regular founder feedback sessions
  • Start–up culture: We offer you hybrid work, training, team events, and a great office setup in the heart of Kreuzberg
  • Discounted fitness programs
  • Diversity & Inclusion: We value diversity and welcome people from all backgrounds


Über uns
Warum jetzt?
Gebäude sind der größte Energieverbraucher in Europa. Sie verbrauchen 40 % unserer Energie und verursachen 36 % aller CO₂-Emissionen. Mehr als 85 % der heutigen Gebäude werden auch im Jahr 2050 noch stehen. Daher ist die Dekarbonisierung von Gebäuden ein wichtiger Bestandteil auf dem Weg zur Klimaneutralität.

Warum wir?
Wir bei VARM glauben, dass es ein absoluter No-Brainer ist, Gebäude energieeffizienter zu machen. Wie wir das schaffen? Indem wir Wärmedämmung neu denken und unseren Kunden dabei helfen, bis zu 50 % ihrer Heizkosten und ihrer CO₂-Emissionen einzusparen.

Unser Ziel?
Wir wollen Marktführer in Europa im Bereich Wärmedämmung werden und haben auf dem Weg dahin Großes vor. Hier ist deine Gelegenheit, mit uns dieses Ziel zu erreichen und Großes zu schaffen. Lass uns gemeinsam ein marktführendes und nachhaltiges Unternehmen aufbauen und einen positiven Beitrag fürs Klima leisten.
We are looking forward to your application! 
We appreciate your interest in VARM GmbH. Please fill in the following short form. Should you have any difficulties in uploading your files, please contact us by mail at hiring@varm.earth.
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