Full-Stack Product Engineer, Ruby on Rails (m/f/d) at Solar Startup
About Us
At VREY, we're building the EnergyOS for multi-family buildings.
Germany has over 3.3 million apartment buildings — and they are the blind spot of the energy transition. <1% solar penetration. <2% smart metering. Almost no flexibility or intelligent energy management.
At the same time, regulation is forcing property owners into major investment: solar is becoming mandatory, smart meters must be rolled out nationwide within five years, heating and mobility are electrifying. The apartment building is transforming from passive real estate into an active part of the decentralised energy infrastructure.
What's missing is an integrated system that makes this transition economically viable and operationally manageable.
VREY combines certified meter operation with proprietary software, enabling property owners to sell self-generated solar power directly to their tenants — simply, and without having to become an energy supplier themselves (§42b EnWG). Regulatory obligation becomes a profitable, predictable opportunity:
Double-digit returns and asset appreciation for owners,
~20% electricity cost savings for tenants,
