Working Student Backend Engineer (m/w/d)

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 reliably engineered services are essential to how we operate. We are looking for a Working Student to help us catch, resolve, and reduce application-level incidents.

Level: Junior Location: Berlin

Your role

As a Working Student, you will support the reliability of our backend services, identifying incidents raised through monitoring, determining root cause, and resolving issues within the services. You will help extend monitoring coverage as our systems grow, and support ongoing refactoring within the services. This role suits candidates with a structured, analytical approach to troubleshooting and an interest in how backend services operate end to end.

Key responsibilities

Incident Monitoring & Resolution

• Monitor application-level alerts for service and business-logic incidents
• Investigate incidents and determine root cause
• Resolve issues directly within the services

Documentation & Process Improvement

• Create and maintain standards for handling known recurring incidents
• Document issues clearly to ensure reproducibility
• Support refactoring and technical debt reduction within the services

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, with the ability to read, debug, and modify service code
• Comfortable working with APIs, databases, and backend business logic
• Structured, methodical approach to troubleshooting
• Good written and spoken English (B2+)
• Conversational German, useful when coordinating with Operations on incidents

Mindset

• Analytical and persistent in tracing issues to its root cause
• Comfortable with work requiring consistency and follow-through
• Pragmatic and solution-oriented
• Comfortable working in a growing startup environment

Nice to Have

• Familiarity with Java/Spring Boot
• Full-stack experience is a strong plus
• 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 arrangements (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!