You will design the financial systems that support the global energy transition at scale.
By building robust payment solutions and seamless checkout experiences, you will ensure that adopting sustainable energy is as smooth as it is memorable.
As a Software Engineer at 1KOMMA5°, you will take technical ownership of key systems and features, make architectural decisions, and ensure scalability, reliability, and performance.
You will work closely with other engineers, product managers, and stakeholders to shape our technical direction and deliver high-impact solutions.
In addition to writing great code, you will mentor teammates, promote engineering excellence, and help elevate our development and deployment practices.

Experience building maintainable, reusable, and testable code in TypeScript, with strong skills in both frontend frameworks and backend technologies.
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.
A pragmatic, product-focused mindset that balances technical excellence with delivering customer value.
Curiosity and initiative to explore new tools and methods that improve product quality and engineering efficiency.
Excellent written and spoken English skills.
Residence in Germany.

You will be part of an international, dynamic, and highly motivated team with a proven track record of making things happen.
Through your work you will accelerate the energy transition and have a direct impact on the climate.
Work with and learn from highly talented colleagues.
You will have direct access to decision-makers.
Excellent opportunity to join one of Europe’s fastest-growing scaleups in a full-time role.
Work remotely (anywhere in Germany), with offices in Hamburg, Berlin, or Munich.
Achieve a healthy work-life balance and enjoy all the benefits of EGYM Wellpass.
Receive perks and discounts through Futurebens.
Whether a city bike or e-bike — stay flexible with our company bike leasing and do something good for the environment at the same time.

Senior Full-Stack Software Engineer – Payments

Key skills