We have a spot for:
Senior PHP Developer

Company Description

Greppy Systems is a Software Engineering company ‘born’ in 2010. Our company’s organizational culture revolves around the idea of ‘partner sourcing’, which means helping high potential start-up projects grow, become self-sustainable companies and conquer the market with their innovative ideas. This means we get to work on complex projects with the latest stable technologies, while building lasting relationships between our team and our partners around the world.

Job Description

  • Takes part in all application development lifecycle phases (Designs, develops and manages application solutions for the business)
  • Works closely with peer developers to plan, execute and review day by day tasks
  • Builds reusable code and libraries for future use
  • Ensure high code quality, code optimization and participates in code reviews
  • Is actively involved in research and innovation (try multiple methods / techniques in searching for a solution)
  • Develops the technical documentation for products / projects in which they are involved in (i.e. business rules design, process design, service design, security and control design, database model etc.)
  • Uses a structured and methodical way of working
  • Collaborates with the team (PM, developers and QAs) to ensure that project deliverables meet the required quality standards


  • S/W Developer with several years of experience in the energy or network industry and optionally in the IT/software industry
  • Proven and demonstrate Symphony Know How
  • well experienced with Docker Stack Set
  • Proactive contribution of in-depth, process-related expert knowledge in
  • German Market Communication NB: GPKE, GELI, WiM, MPES.
  • Network billing: network usage electricity/gas, excess/shortfall quantities, MSB, EEG
  • Sound knowledge of relevant market processes and typical stumbling blocks/special cases
  • Experience with ERP systems in the energy industry; own user experience a big plus
  • Support of new and further developments for process-related mapping in an energy industry ERP/accounting system
  • Good understanding of the full product portfolio of an energy supplier electricity and gas incl. common metering methods
  • Independent working style with a high degree of structured and analytical thinking
  • Good communication skills and team-oriented working style


  • Scrum / Agile development network accounting system
  • Good understanding of Domain Driven Design, and large scaling platforms
  • Good German language skills

Additional Information

What do we offer?

  • A fun and relaxed, yet dynamic working environment, a flexible program, a healthy life-work balance
  • A young and dynamic team with an open and extraverted communication style and outstanding performances 
  • Indoor fitness room, outdoor ping pong table, swimming pool subscription etc.
  • Non-corporate organizational environment, where ideas are valued and engagement is rewarded

This could be  a great opportunity for the right candidate. If you like warm, open and non-corporate environments and looking forward interesting projects, let's meet and talk about it.