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Working Student / Internship Java Softwaredevelopment

Job Type

Part Time/Full Time

Location

Leipzig, Germany

Workspace

On-Site

About us

At Optimax Energy, we have been developing smart solutions for automated trading systems and promoting the transition to green energy for over 10 years. This makes us a leader in international electricity trading.


Our culturally diverse team shares a common vision and fosters a culture of appreciation and equal opportunities. We believe that we can achieve extraordinary things if we develop freely. That's why we place great value on a healthy work-life balance and encourage creative freedom.


We embrace diversity, equality and inclusion. Different perspectives and backgrounds strengthen our team and lead to creative solutions. To this end, we create an appreciative working environment that recognizes the uniqueness of all employees and retains talent in the long term.


In order to actively shape the future of the energy sector, we are looking for outstanding, committed individuals who share our vision and corporate culture.


Your responsibilities

  • Development of state-of-the-art software for energy trading (in Java 11 and Eclipse RCP)
  • Integration of various software systems and development of interfaces (API)
  • Organization and processing of big data, including optimization of data quality
  • Tasks are not prescribed, but developed together

This is what it looks like with us:

  • Java 21
  • Communication: YouTrack, working with agile methods
  • IDE: IntelliJ or Eclipse
  • CD: Jenkins
  • Framework: selectable, we use Spring
  • DBMS: MySQL

Your skills

Must-Haves

  • Good grades in computer science or comparable subjects
  • Project-based experience and understanding of Java and OOP (study content or in free time)
  • Passion for the field
  • Enjoy problem-solving and analytical approach and proactively bringing in new ideas
  • Interest in artificial intelligence and machine learning
  • Enjoy learning, training and professional exchange and working together on projects
  • High level of self-motivation
  • Independent way of working
  • Good (technical) English

Nice-to-haves

  • Further knowledge of our stack
  • First job-based development experience with Java
  • Understanding of multi-threading

What we offer

Health & well-being:

  • Freshly cooked lunch every day
  • Massages and Pilates in the office
  • EGYM Wellpass
  • Sports and mobility offers, such as subsidies for a new bike

Flexible working arrangements and benefits:

  • 30 days paid vacation
  • Flexibility in working hours depending on company needs
  • Additional vacation for the honeymoon
  • Subsidies for childcare

Team culture and working atmosphere:

  • Regular team events (game night, table tennis tourament, excursions, etc.)
  • Work in a mission-oriented, international team that values diversity and equality
  • Working atmosphere with open doors and flat hierarchies
  • Modern, green office in the heart of Leipzig

Professional development and further training:

  • Independence and responsibility in project management
  • 10% of weekly working time for personal and professional development
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