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Working Student Software Engineering (m/f/d)

Posted Oct 08, 2026

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1KOMMA5˚

Hamburg

EnglishWerkstudentWorking student (Werkstudent)German is a plus

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Salary (estimate)

Full-time reference: about €55,000/year

About this job

1KOMMA5°

We are looking for you to join our tech team in Berlin, Munich, or Hamburg. 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. And the best part? They are all interconnected!

Become a part of our mission and learn about our Product & Tech team!

Deine Position

You will work on transforming the business of installing renewable technologies. With our core business software platform we streamline ground operations and rooftop installation to power the energy transition in private homes and small businesses world-wide.

As a Working Student Software Engineering (m/f/d) in 1KOMMA5°, you will work in a cross-functional team alongside experienced frontend and backend engineers, product managers and designers in a collaborative environment. You'll contribute to building and maintaining software solutions while learning best practices in development, deployment, and operations. With mentorship and support, you’ll grow your technical skills and help the team deliver impactful solutions.

Key responsibilities include but are not limited to:

Discover, evaluate, implement, and deploy software solutions for our core customer-facing products

Extending and maintaining business critical applications

Help shaping actionable requirements from complex and undefined business problems

Foster a culture of experiment-driven innovation within the team

Improve developer experience and customer satisfaction by constantly avoiding/reducing tech-debt, automating as much as possible, documenting decisions, improving the quality, and ultimately building software people love to use

Work collaboratively with product managers, designers, and software engineers

Depending on your focus, you will work with some of the following technologies:

Backend: Ruby On Rails, TypeScript, Node.js, NestJS
Web Frontend: React, TypeScript, Next.js, Vercel
Mobile: Flutter
Cloud: Google Cloud Platform (Cloud Run, PubSub, CloudSQL, Firestore, BigQuery)
Observability: Datadog
IaC: Terraform
Deployment: GitHub Actions

Enrolled at a German university for at least two more semesters, studying computer science or a comparable field, and willing to work 20 hours per week
Some experience writing maintainable, self-describing, reusable, and testable code with TypeScript and other major back-end or full-stack technologies
Basic knowledge of designing and maintaining RESTful APIs
An agile and results-oriented mindset with a passion for supporting your team
A creative and enthusiastic approach to tackling new challenges, contributing to an ambitious and dynamic company
Excellent knowledge of spoken and written English (German is a plus)
Residency in Germany

Energy industry experience
Start-up experience

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

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Job facts

Employer: 1KOMMA5˚
Role: Working Student Software Engineering (m/f/d)
City: Hamburg
Work mode: not stated
Language: English
Seniority: Werkstudent
Posted: Oct 08, 2026
Source: Arbeitnow

Company rating

Glassdoor 3.4
32 reviews
View on Glassdoor
Kununu 3.9
477 reviews
View on Kununu

Company news

1Komma5 Grad, 2G Energy team up on energy supply for data centres
Renewables Now2 days ago
Powering on together: Adelaide United and 1KOMMA5° extend partnership
Adelaide United11 days ago
Osborne Clarke advises G2 Venture Partners on 1KOMMA5°'s EUR 70 million Series C financing round
mandaco13 days ago
1Komma5° announces record investment in AI-based energy management system
pv magazine Australia13 days ago
Home Energy Cleantech Startup 1KOMMA5° Raises €70 Million at Unicorn $1.35 Billion Valuation
ESG Today18 days ago

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Source: Statistisches Bundesamt (Destatis), table; dl-de/by-2-0; StarIn's calculation

€56,000 to €76,000

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Working Student Software Engineering (m/f/d)

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