1KOMMA5° is creating Germany's largest one-stop-shop for the sale, installation, and servicing of solar panels, heat pumps, electricity solutions, and charging infrastructure. With our core marketing automation and CRM platforms. We redefine growth processes to accelerate the global energy transition empowering private homes and small businesses to adopt sustainable energy solutions.
As a Senior Software Engineer at 1KOMMA5°, you will take technical ownership of key systems and features, driving architectural decisions and ensuring scalability, reliability, and performance. Beyond writing great code, you’ll mentor teammates, champion engineering excellence, and help evolve our development and deployment practices to the next level.
js/TypeScript for frontend applications & NestJS/TypeScript for backend applications
Contribute as a senior full-stack engineer within a team of self-driven software developers
From scalable backend services to performant, user-friendly frontends
Continuously improve developer experience by reducing technical debt, automating workflows, and documenting key decisions and operational processes
Contribute to lightweight project management by defining milestones, ensuring technical feasibility, and aligning engineering work with product goals
Extensive experience writing maintainable, reusable, and testable code in TypeScript, with strong skills in both frontend frameworks (e.g. Strong understanding of API design, data modeling, and system integration (RESTful or GraphQL)
Proven ability to own features end-to-end, from UX and architecture to deployment and monitoring
Excellent written and spoken English ; German is a plus
Benefits
You are part of an international, dynamic, and highly motivated team of people who have proven to make things happen
You will enjoy the best chances of entering full-time in one of Europe’s most thriving scaleups
Create a healthy balance alongside your work and enjoy all the benefits of the EGYM Wellpass
Benefits and discounts are yours with Futurebens
Whether city bike or e-bike - be flexible with our job bike leasing and do something good for the environment at the same time
We created an easy one-stop-shop to buy and install solar, charging stations and heat pumps, with the purpose of liberating all European homes from the shackles of fossil fuels.