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Python Developer / Energy Systems Engineer (d/f/m) Green Tech & Climate Software Job Opening In Berlin – Now Hiring Green Fusion GmbH

Python Developer / Energy Systems Engineer (d/f/m) Green Tech & Climate Software

    Germany Jobs Expertini Expertini Germany Jobs Berlin Computer Occupations Python Developer / Energy Systems Engineer (D/f/m) Green Tech & Climate Software

Job description

At Green Fusion, we’re making energy systems more efficient.


Our platform connects and optimizes heating systems in residential buildings, helping to cut energy use and CO₂ emissions through data and automation.


As a Systems Engineer you’ll be a developer in the energy sector.

You’ll collaborate closely with software, energy and product teams to develop tools which turn real-world data into meaningful improvements in energy performance.


Your development work will have a direct impact on how energy is used in everyday life — practical, measurable, and sustainable.


Tasks


As a Energy Systems Engineer, you will:



  • Develop automation software that optimizes heating system performance and energy efficiency.

  • Exploring and integrating controller interfaces on application levels — connecting diverse systems into our tooling.

  • Co-designing our system architecture, helping shape how our core procedures evolve and scale.

  • Running remote optimizations and analyzing real-world data to continuously improve system behavior.


Requirements


You don’t have to tick every box — we value curiosity, learning, and drive just as much as experience.


If you’re excited about using technology to make heating systems more efficient and more sustainable, we’d love to hear from you.


We’re especially happy if you bring:



  • 2–4 years of programming experience in a professional environment, ideally with Python, but we welcome other languages too.

  • Familiarity with communication protocols such as Modbus, CAN, HTTP, or MQTT.

  • Solid understanding of databases and API interactions (e.g., REST).

  • A basic grasp of networking technologies.

  • Experience with version control (Git) and collaborative development workflows.

  • A structured, independent work style and the ability to solve problems creatively.

  • Strong communication skills and the openness to collaborate closely with colleagues from different fields.


Benefits


🏠 Flexible working hours, home office, and up to 2 months of remote work possible.


💡 Diverse opportunities for professional development – whether through exciting challenges on the job, our open feedback culture, or funded training programs – there are always opportunities to learn and grow.


💼 Employee benefits like Urban Sports Club or Become1.


🌱 Direct impact through your job – with us, you can actively contribute to the energy transition and fight climate change every day.


💚 We value our team – that's why regular team events are especially important to us.


🙌 The best team Berlin has to offer – and maybe even beyond.

Don’t believe it?

Then find out for yourself and apply now!


While we are still considered pioneers today, with you on board, we will soon dominate the market! First in the DACH region, then across Europe.


You can expect a motivated, open-minded, and dynamic environment, driven by passion and ambition to actively shape the energy transition – something that can only succeed together!


We look forward to your application – Hoa will get in touch with you!



Ein nachhaltiges Energiemanagement in der Wohnungswirtschaft ist nicht nur bald gesetzlich verpflichtend, sondern darüber hinaus ein aktiver Schritt gegen den Klimawandel, hin zu einer grüneren Zukunft für uns alle.


Durch eine signifikante Reduzierung des Heizenergieverbrauchs in Immobilien können nicht nur Ressourcen und Kosten gespart, sondern auch die CO2-Emissionen deutlich gesenkt werden.


Und mit Hilfe der Digitalisierung der Anlagen können diese effizient betrieben werden - automatisiert, vorausschauend und sich selbst optimierend.

Probleme können zudem früher erkannt und direkt behoben werden.


Klingt zu schön um wahr zu sein?

Nein, mit Green Fusion wird genau das möglich! Wir digitalisieren nicht nur Heizungskeller, wir automatisieren und optimieren den gesamten Betrieb und sorgen für die reibungslose Transformation hin zu regenerativen Systemen.

Für maximale Effizienz und Nachhaltigkeit in der Wohnungswirtschaft.

Required Skill Profession

Computer Occupations


  • Job Details

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Are You Looking for Python Developer / Energy Systems Engineer (d/f/m) Green Tech & Climate Software Job?

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Practice: Prepare answers to common interview questions and rehearse using the STAR method (Situation, Task, Action, Result) to showcase your skills and experiences.

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