via Indeed · 18. September 2026 ·vor 1 Tag

Working Student Software Engineer (w/ German Utility Industry Focus) (m/f/d)

GreenStone Energy GmbH
Berlin-Kreuzberg Teilzeit
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Greenstone Energy GmbH is a fast\-growing company in the field of sustainable energy solutions. Since 2015, we have been committed to providing climate\- and environmentally\-friendly energy supplies using 100 percent renewable energy. Our best\-known brands are VeganStrom and New Energy Cloud. This makes us not only pioneers in the field of animal\-friendly green electricity offers, but also technologically innovative.

We believe reliable data exchange with our market partners is essential to how we operate. We are looking for a Working Student to help us catch, resolve, and prevent market communication failures before they affect the business.

Level: Junior Location: Berlin

Your role

As a Working Student, you will support the reliability of our data exchange with market participants, identifying processing failures, determining root cause, and maintaining resolution procedures. You will ensure issues are resolved promptly rather than accumulating tickets. This role suits candidates with a structured, analytical approach to troubleshooting and an interest in how our message flows operate end to end.

Key responsibilities

Message Monitoring \& Resolution

  • Monitor utility market communication messages for processing failures

  • Investigate failures and determine root cause

  • Resolve issues directly, including providing fixes for parsing and/or sending messages to utility industry market partners
Documentation \& Process Improvement
  • Create and maintain standards for known recurring failure production failures

  • Document issues clearly to ensure reproducibility
Collaboration
  • Work with the team to expand monitoring metrics across services

  • Keep affected teams and stakeholders informed on incident status
What you bring:

Experience \& Skills

  • Currently pursuing a Bachelor's or Master's degree in Computer Science, Information Systems, Business Informatics, or a related field

  • Working knowledge of Python (or similar), with the ability to read, debug, and modify parsing/integration code

  • Comfortable working with structured data transmission formats, or able to learn quickly

  • Structured, methodical approach to troubleshooting

  • B2\+ English and B2\+ German, written and spoken
Mindset
  • Analytical and persistent in tracing issues to root cause

  • Comfortable with operational work requiring consistency and follow\-through

  • Pragmatic and solution\-oriented

  • Comfortable working in a growing startup environment
Nice to Have
  • Familiarity with EDIFACT or other EDI/B2B messaging standards

  • Exposure to energy or utility market processes

  • Experience with ticketing/incident tools (Notion, Jira, or similar)

  • Familiarity with observability tools (metrics, logging, alerting)

  • Familiarity with AI productivity tools (ChatGPT, Claude, or similar)

  • Interest in the energy industry
We offer you:
  • Real ownership from day one

  • The opportunity to work directly with experienced leaders in a fast\-growing energy tech company

  • A collaborative, entrepreneurial environment where your ideas matter to the team

  • Flexible working hours (Core working hours 9:30 am to 2:30 pm)

  • A modern office well connected near Potsdamer Platz, with the option to work partially from home

  • Employee's perks: discounted electricity tariff, Tuesday to Thursday lunch in the office is on us!
Job Type: Part\-time

Work Location: In person

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