Senior API Developer (m/f/d)

  • Cologne

Job description

We build bridges between systems, teams, and ideas – with smart APIs, scalable architectures, and a platform that delights developers.

In our team, you'll work at the intersection of technology and business – with modern tools, plenty of scope for creativity, and a clear goal: to make DEVK's IT landscape future-proof, flexible, and high-performing.

Whether it's the cloud, event-driven architecture, or self-service platforms – with us, you don't just participate, you make an impact. 

What you can expect from us

  • Fairness and cohesion are of paramount importance to us.
  • With 30 days of holiday, flexitime and our home office options, we support your work-life balance.
  • Stable 13.5 salaries per year and a strong company pension scheme await you.
  • Personal development is expressly desired and encouraged here.
  • Your health is important to us – benefit from our diverse range of offers.

Your tasks include

  • You identify and leverage API potential and actively support departments and product teams with the design and development of modern interfaces.
  • You are driving the implementation of an API-centric development approach ('API as a Product') and establishing sustainable standards.
  • You are involved in establishing clear, practical API governance and are developing easy-to-understand guidelines as well as automated quality controls.
  • You are designing the architecture of a modern self-service integration platform (iPaaS) and developing scalable integration architectures for cloud, B2B/B2C, and SaaS solutions.
  • You bring your expertise to the further development of our integration landscape, advise on event-driven architectures and are the central point of contact for business departments and stakeholders.

What you bring with you

  • Qualifications: Completed degree in (Business) Informatics or a comparable qualification
  • Professional experience: Several years of experience in projects as an API or data integration developer, or as a Solution Architect
  • Architectural expertise: Sound application of API design, full lifecycle API management, event-driven architecture, and integration of cloud and on-premises systems.
  • API knowledge: In-depth expert knowledge in API security (threat protection and access control) via API gateways
  • Technologies: Very good knowledge of SOA, REST, authentication solutions, and ideally experience with streaming and event-based integration architectures

About the company

DEVK – More than "just" insurance

Yes, really: we are also a tech company.
Namely one that gets things done.

We don't engage in endless discussions; we implement. Ambitious, pragmatic, and responsible – for millions of customers and for each other. We build modern IT solutions, drive digitalisation, and ensure that technology has a real impact.

No suits, no buzzwords. Instead, team spirit, creative freedom, and purpose.

Come over. Bring your tech mindset. Make it more carefree.

Our benefits

  • Company pension scheme
  • Fitness programme
  • Flexible working hours
  • Home office
  • Public transport ticket / subsidy
  • Further training