Senior Full-Stack Software Engineer, 1Komma5°
Carbon-neutral infrastructure for homes
Be an early applicant
Carbon-neutral infrastructure for homes
201-500 employees
Be an early applicant
201-500 employees
Company mission
To bring the technologies that will contribute to the energy transition to people efficiently and cheaply.
Role
Who you are
- Extensive experience writing maintainable, reusable, and testable code in TypeScript, with strong skills in both frontend frameworks (e.g. React, Next.js) and backend technologies (e.g. Node.js, NestJS, or similar)
- 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; German is a plus
- Residency in Germany
What the job involves
- 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
- You’ll collaborate closely with other engineers, product managers, and stakeholders to shape our technical direction and deliver high-impact solutions
- Beyond writing great code, you’ll mentor teammates, champion engineering excellence, and help evolve our development and deployment practices to the next level
- Contribute as a senior full-stack engineer within a team of self-driven software developers
- Design, build, and maintain business-critical systems across the stack. From scalable backend services to performant, user-friendly frontends
- Translate complex and loosely defined business problems into clear, actionable technical solutions
- Champion clean architecture, component reusability, and maintainable UI patterns using modern frameworks (e.g. React, Next.js, or similar)
- Drive experiment-driven innovation and uphold strong engineering practices in testing, CI/CD, observability, and code quality
- Continuously improve developer experience by reducing technical debt, automating workflows, and documenting key decisions and operational processes
- Operate effectively in an asynchronous, outcome-oriented environment, managing your work autonomously and maintaining clear communication through documentation and structured updates
- Contribute to lightweight project management by defining milestones, ensuring technical feasibility, and aligning engineering work with product goals
Our take
As individuals and communities look to lower the carbon footprints of their buildings and homes, there is a need to access products and infrastructure that will enable them to adopt more eco-friendly energy practices. 1KOMMA5° is building a "one-stop shop" for sales, installation and services related to solar, power storage, and EV charging infrastructure, simplifying the energy transition for carbon-conscious people.
1KOMMA5°'s offerings include the energy manager "Heartbeat", a free-to-use platform that can be accessed on mobile, and helps users to make the most out of their self-generated electricity. The company is also building a group of experienced specialist companies that it aims to support in aiding the clean energy transition, not only by investing in them but by granting them access to its operational experience to help them further develop.
A 2024 surge in revenue and profitability (leading to the company's unicorn status in 2023) underscores the market's confidence in 1KOMA5°'s transformative potential. With a clear trajectory towards exponential growth, fueled by ambitious revenue targets and strategic investments in product development, the company is poised to redefine the energy sector.
Freddie
Company Specialist at Welcome to the Jungle
Insights
248% employee growth in 12 months
Company
Funding (2 rounds)
Jun 2020
$3.3m
SEED
Jul 2018
$1.2m
SEED
Total funding: $4.5m
Company benefits
- You have the opportunity to work in our brand new offices in downtown Hamburg and Berlin and/or remotely
- Use your technical equipment outside of work in your free time
- You are part of a fast-growing company with a lot of development potential , where you can build something independently and feel your impact
- Work in flat hierarchies , take on responsibility during your induction and work directly with parts of the management
- With your work, you support the megatrend “energy and mobility transition” and make a concrete contribution to the sustainable restructuring of our energy infrastructure
- Be active and use the offers of over 7,600 sports partners with the EGYM Wellpass
Company HQ
Hamburg-Neustadt, Hamburg, Germany
Leadership
Philipp Schröder
(CEO & Co-Founder)Co-founder and former CEO of CAPinside.com. Has previously worked as Managing Director at sonnen, and Country Director at Tesla.
Michael Hinderer
(Chairman of the Board & Co-Founder)Senior Advisory Partner at Castik Capital. Co-founded GCA Altium, and was a Founding Partner for Corporate Finance Partners Holding and Apax.
Philip Liesenfeld
(COO & Co-Founder)Was Managing Director at wiwi Fondsmanagement. Worked in several roles at juwi Group including Regional Manager and Project Manager.
Jannik Schall
(CPO & Co-Founder)Former VP of Global Product at sonnen. Worked in Sales & Marketing at Tesla.
Micha Grueber
(CFO & Co-Founder)Former CFO at CAPinside. Previously Commercial Manager at SABIO.
Salary benchmarks
We don't have enough data yet to provide salary benchmarks for this role.
Submit your salary to help other candidates with crowdsourced salary estimates.
Share this job
View 17 more jobs at 1Komma5°