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Jobs for developers in Berlin

For ethical coders

Build a safer world. Join our development team.

Zertificon Solutions – Software manufacturer & IT security specialist – Protecting business communications since 2004. – More than 25% of the 100 German companies with the highest turnover and hundreds of small and medium-sized enterprises worldwide use our encryption solutions. We have big plans and are growing steadily. Located in Neukölln, Berlin, our organization counts over 100 employees. Join a professional, highly qualified team: take on challenges, share your knowledge, learn and discover your potential!

Senior Backend Developer PHP (f/m/d) - IT Security Business

What you will be doing

As a Senior Backend Developer, you'll take a leading role in developing PHP-based microservices and APIs. Do you also prioritize clean code as much as we do? You would be a great fit for our team.
  • As part of a 7-person team, you will steer the development of microservices and RESTful APIs
  • Collaborating with other teams, you will set service boundaries and make sure microservices communicate well
  • You will monitor the performance and fix any issues in order to maintain low latency and high availability
  • Your responsibilities also include mentoring junior developers (currently two) and sharing your knowledge. You enjoy sharing your knowledge and actively helping your colleagues to grow

What we value in our candidates

  • Minimum 3 years experience as a PHP Developer with a focus on Microservices and APIs
  • Strong skills in PHP, RESTful API design, and frameworks like Symfony, Laravel, or Lumen
  • Experience with databases (e.g., MySQL, PostgreSQL, or NoSQL)
  • Knowledge of container technologies (Docker)
  • Understanding of version control systems, continuous integration, and continuous deployment (CI/CD) pipelines.
  • Nice to have: Knowledge in GoLang
  • You explain technical topics so clearly that everyone can work together productively in meetings, regardless of their technical background.
  • Languages: please pay attention! German (minimum B1) is required for this position, alongside fluent English
Don't meet every requirement? We strongly encourage you to apply if you’re interested. We want to get to know you.

What Zertificon offers you

  • Flexible working hours and the possibility of working from home
  • Mobility options: Free public transport ticket (Deutschlandticket), job bicycle leasing, or parking
  • Subsidies for meals (e.g. Lieferando) and internet at home
  • Office perks: Rooftop terraces and green courtyard; organic fruits and drinks; ship personal packages to work
  • Regular social events: Pizza Fridays at the office, regular team events, and a big summer party
  • Responsible leadership: Onboarding, regular feedback talks, and transparent quarterly goals
  • Innovative without startup risks: We don't rely on investors and our business model has been profitable since 2004. However, we are not slowing down and have big plans for the future
  • Meaningful work in IT security and the opportunity to tackle significant challenges of our time
  • Huge market potential worldwide
Apply now via our online form. We look forward to hearing from you! Not convinced yet? Find out more at: Work at Zertificon
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