Junior Fullstack Developer (m/f/d)

You will be part of the team building the software that accompanies a tenant electricity project from the initial inquiry to live operation.

The team is currently growing in two areas:

Go-to-Market: 

From the initial inquiry to the signed project. Inquiry funnel, profitability calculation, and the partner portal for solar installers and electricians.

Project Implementation: 

From the signature to productive operation. A new portal that brings metering concepts, registrations, commissioning, and initial billing from spreadsheets and email loops into an app. The first version is currently being designed, and you would be involved from the beginning.

You will start in one of the two areas. We will clarify which one suits you during the interview.

• Building and further developing a product: You will take on your own manageable area of our software from the start and grow with it.

• Close, direct collaboration with experienced developers, product, and design; you will have a dedicated buddy to guide you in the first few months.

• Development of TypeScript-based frontends and backends (React & NestJS).

• End-to-end feature implementation – from the ticket through the first line of code to productive deployment, with review and sparring, but without someone taking over the work for you.

• We work with AI coding assistants as an integral part of the workflow. Not as a toy, but as a tool with clear rules: You decide what you delegate, and you are responsible for what is merged.

• Contribution to the further development and maintenance of PostgreSQL databases.

• Support in the development and expansion of APIs.

• Writing clean, understandable, and maintainable code, regardless of whether you or an assistant typed it.

• Participation in code reviews, tests, CI/CD, and deployments.

• Active learning and gradual assumption of more responsibility within the team.

• Initial practical experience in developing web applications.

• Good fundamentals in TypeScript and initial experience with React.

• Basic backend experience (Node.js / TypeScript; NestJS is a plus) and interest in APIs and modern web architectures.

• Initial contact with relational databases, ideally PostgreSQL.

• You have worked with AI assistants and know that their output is a suggestion, not a result: You read, understand, and test before you take over.

• You have a desire to build clean software and want to understand why things are implemented the way they are and for what purpose.

• You reliably implement clearly defined tasks; you actively ask for clarification on open points.

• You want to take responsibility for your own area, not just work through tickets, and feel comfortable in startup structures.

• Willingness to learn, curious, and motivated to develop professionally.
  

• Team-oriented, open in communication, and interested in technical contexts.
  

• Languages: German at at least B2 level, spoken and written.

• Flexible Work Arrangement: Enjoy maximum flexibility with the option for hybrid work in Hamburg – we'd like to meet 1-2 days a week at the office, and you can work remotely the rest of the time.

• Mobile On The Go: Subsidy for Deutschlandticket or single tickets, plus bike leasing via salary conversion – get your desired bike affordably, 100% for private use.

• Fit & Healthy: With our Urban Sports Club subsidy, you can train in thousands of studios and courses nationwide, from yoga to climbing.

• Pension: We subsidize your company pension plan – for your future after metergrid.

• Community: Regular cross-departmental events at our locations bring the entire team together.

• Freedom to Shape: We are a motivated start-up team without hierarchical levels. Here you can implement your ideas and actively help determine our direction.
  

• Growth Opportunities: Your personal and professional development is important to us – we offer you diverse opportunities to develop in new directions.

• Meaningful Task: You are not just working for a job, but for a mission: the energy transition. In five years, you can proudly say that you were part of it!

• Fast Learning Curve and Self-Responsibility: From day one, you are in the thick of it. We rely on you and your skills and support you in your development.

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