Senior Backend VPP Software Engineer - TypeScript (m/f/d)

Das ist der Job

To make this a reality, we are building the energy system of the future with Heartbeat AI.

Darum lohnt es sich

Foster a culture of experiment-driven innovation within the team. Promote teamwork and successful project execution. Work across your boundaries and interact in close collaboration with our stakeholders and other teams. An agile and product-oriented mindset and you consider yourself a team player.

Benefits You are part of an international, dynamic, and highly motivated team of people who have proven to make things happen. Create a healthy balance alongside your work and enjoy all the benefits of the EGYM Wellpass. Benefits and discounts are yours with Futurebens.

Connecting our customers into one powerful clean energy operating system to enable flexible tariffs and to ultimately follow the rhythm of wind and sun!" - Philipp Schröder (CEO 1KOMMA5°) #J-18808-Ljbffr Domain-driven design architecture 1KOMMA5° At 1KOMMA5° , we pursue a clear vision: Living on wind and sunlight forever for free .

Want to be part of it? We bring together regional craftsmanship and scalable software: We don't think of solar, batteries, heat pumps, and e-mobility as isolated components, but control them as an intelligent, integrated overall system in our virtual power plant. Directly connected to the electricity market – in real time, fully automated.

This way, energy is used when it is available from renewables and particularly cost-effective. By 2030, our goal is to transition 1.5 million households to renewable energies. Over 3,000 people are working towards this every day, at more than 80 locations worldwide, from Finland to Australia.

Want to take responsibility and build solutions that truly matter? Apply now and help us shape the energy world of tomorrow. Your mission As a member of the B2C domain, you will build a virtual power plant leveraging our energy manager "Heartbeat", and continuously ship innovative energy market solutions to our customers.

You will be responsible for developing scalable, robust backend services that enable seamless integration of our energy management solutions with various energy markets.

Key responsibilities Work collaboratively with product managers, data engineers, and data scientists to understand problems, support discoveries, and create solutions our customers love. Build and optimize backend services for VPP operations and energy market integrations.

Design and implement APIs and abstraction layers for seamless communication between different components of our energy market integration solutions. Optimize backend services for scalability and support for a large number of connected users. Create, implement, evaluate, and deploy software solutions to solve complex problems in a simplified way.

Continuously improve developer satisfaction by avoiding/reducing tech debt, automating processes, and good documentation.

Technologies you will work with TypeScript, NestJS Google Cloud Platform (Cloud Run, Cloud Functions, Pub/Sub, Cloud SQL, Firestore, BigQuery) Domain-driven design architecture Datadog Terraform GitHub Actions Your profile Proven experience in developing scalable backend solutions with TypeScript from several past projects.

Competence in building virtual power plant infrastructure, including the integration into energy markets (day-ahead, intraday, balancing services, etc). Hands‑on experience working with interfaces in the context of energy services (e.g., smart meters, energy optimization, load balancing).

Broad knowledge of various architectural patterns and experience implementing them with CI/CD using GitHub Actions and cloud infrastructure (ideally GCP). Passion for maintainable, documented, reusable, and testable code. A finger on the pulse of software engineering trends and industry best practices.

Very strong written and spoken English skills, German is a plus. Bonus points for Experience with IaC (ideally Terraform). Experience Python in the context of Data Engineering or Machine Learning. Experience with IoT applications for grid balancing and demand response.

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. Whether city bike or e‑bike – be flexible with our job bike leasing and do something good for the environment at the same time. About Us "At 1KOMMA5°, our vision is to accelerate CO2 neutral life for all!

We created an easy one‑stop‑shop to buy and install solar, charging stations and heat pumps, with the purpose of liberating all European homes from the shackles of fossil fuels. With Heartbeat, we make clean energy smarter.