1KOMMA5° · 1 month ago
Senior Full-Stack Software Engineer (m/f/d)
United States
Full-time
Remote
Senior Level1KOMMA5° is creating Germany's largest one-stop-shop for the sale, installation, and servicing of solar panels, heat pumps, electricity solutions, and charging infrastructure. As a Senior Software Engineer, you will take technical ownership of key systems and features, driving architectural decisions and ensuring scalability, reliability, and performance while collaborating with engineers and product managers.
Charging InfrastructureEnergyEnergy StorageRenewable Energy
No H1B
Responsibilities
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
Qualification
Required
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
Benefits
You are part of an international, dynamic, and highly motivated team of people who have proven to make things happen
With your work, you accelerate the "energy transition" and hence have a direct impact on our climate
Work with and learn from other super-smart colleagues
You will enjoy direct contact with core decision-makers
You will enjoy the best chances of entering full-time in one of Europe’s most thriving scaleups
You work remotely (Germany-wide), with offices in Hamburg, Berlin or Munich
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
Company
1KOMMA5°
1Komma5° is a home electrification and climatetech company that provides intelligent energy solutions and promotes a CO₂-neutral lifestyle.
Founded in 2021
1001-5000 employees
Funding
Current Stage
Late StageTotal Funding
$704.06MKey Investors
Sabanci Climate TechnologiesHamilton Lane2150
2025-07-28Series Unknown
2024-12-20Series Unknown· $156.47M
2024-03-04Private Equity
Leadership Team
Philipp Schröder
Co-Founder & CEO
Jannik Schall
Co-Founder & CPO
Recent News
ClimateHack Weekly
2025-10-25
Tech Funding News
2025-10-09
Company data provided by crunchbase