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Working Student Software Engineering (m/f/d)

1KOMMA5˚ · Hamburg

On-siteJuniorPosted 29 Sept 2026

What this role requires

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Also mentioned, not required: Ruby On Rails, Node.js, NestJS, React, Next.js, Vercel, Flutter, Google Cloud Platform, Datadog, Terraform, GitHub Actions, English (B2). Worth having, but their absence is not what gets a CV filtered out.

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Job description

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.

Read the full description (35 more sections)

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

Dein Profil

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

Bonus points for:

Energy industry experience

Start-up experience

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

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