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Fullstack Engineer


1 year ago

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We are looking for a Fullstack Engineer to join our team. You would be joining the Tech team which currently is made up of eight people, six developers, and two in ​Product. ​As part of a cross-functional team, you will be focused on projects related to new business alongside projects to reduce our OPS load, ensuring we can grow faster with a smaller team.

You can view our full stack here

  • Design and implement backend and frontend solutions from scratch.

  • Involved in tech-stack decisions to choose the best frameworks, tools and processes for our team.

  • Develop a scalable renewable energy platform with cutting-edge technologies

  • Build the integration of our new product lines such as smart meter, dynamic pricing, electric vehicle (EV) charging and more.

  • Minimum 3+ years FullStack development.

  • Experience with Typescript and/or Python.

  • Experience with React.

  • Experience designing APIs.

  • Experience with Relational Databases.

  • Experience in high code quality, unit testing, integration testing and E2E testing.

  • Comfortable with greenfield projects.

  • Good communication skills and fluency in English.

  • Experience with AWS services.

  • Working with CI/CD automation workflows (Docker, GitHub Actions).

  • Environmental Impact: Each customer who switches to Ostrom on average helps offset 1.5 tons of CO2 emissions per year compared to the average German energy mix

  • Flexibility: We offer a hybrid work model with a dog-friendly office in Berlin, Mitte if you prefer working in the office.

  • Relocation package: If you want to move to Germany we offer visa and relocation support

  • Trust-based Team: A truly flat hierarchy and transparent company culture, where everyone’s voice matters

  • Personal development: You receive an annual growth budget, encompassed with frequent development 1:1’s and development cycles held twice a year

  • Benefits: From monthly team events to discounted gym membership, ticket for public transport, e-Moped or e-Bike via Dance, Futurebens, and monthly vouchers 

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Energy. Just Better.
Ostrom is the fastest-growing green & digital energy provider in Germany. We are already delivering energy in 1400+ cities and have won clients from over 400+ different traditional utilities. We are currently a team of 22 and growing fast, and have just raised >9M € in our Series A funding round.  

Our mission is to reinvent the German energy industry to be fair, smart and green:

  • Fair: Flexible, monthly rolling contract. One transparent tariff with no 12-24 month lock-ins for new & long-time customers.

  • Smart: Digital-first power management. English & German signup & contracts, responsive live customer chat, everything in-app.

  • Green: Only 100% sustainable energy. We only buy from renewable energy sources, no compromise.


Ostrom logo
Ostrom11-50 employees
Clean Electricity company.

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