Sr. Software Developer (SDN Development) (f/m/d)

At IONOS, the leading European provider of cloud infrastructure, cloud services and hosting services, you will work together with a wide range of teams. We are characterized by open structures, a friendly working culture and flat hierarchies with a strong team spirit. We firmly believe that work and fun are compatible, and offer you the right environment for this. Our constant growth means that we are always looking for new colleagues. Become part of IONOS and grow with us.

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Your Tasks:

  • Developing and supporting our high performance SDN Stack of IONOS Cloud using a range of diverse technologies.
  • Designing new features and adopting new technologies (both hardware and "Software defined") on different components of the SDN Stack.
  • Cooperating with other teams to ensure the smooth integration of the new SDN features in IONOS Cloud.

We Appreciate:

Minimum Qualifications:
  • 5+ years of software/system development experience.
  • Proficiency in C.
  • Deep knowledge of IPv4/IPv6, TCP networking protocols.
  • Experience with the GNU toolchain (gcc, gdb, make, etc.), git; proficiency in Linux CLI.
  • Understanding of Linux kernel routing, bridging, etc.
Preferred Qualifications:
  • Experience with other Networking-related technologies like Open vSwitch, OpenFlow, VXLAN, VRF, eBPF.
  • Experience in Linux Kernel internals.
  • Experience in virtualization technologies like KVM, QEMU, VirtIO.
  • Proficiency in Linux system administration and automation, including writing code in Python and/or Golang.

What else we would like to tell you:

So, you're a geek or a nerd? Here at IONOS, you'll be in good company. Any colourful skin-art? Whatever floats your boat. Passionate about technology as well as putting a smile on the customer's face ? Be you - with us at IONOS!

Job info

Location: Berlin
Type: Full-time
Category: IT Software Development
Work experience: Professionals
Reference ID: 2054


1&1 IONOS is Europe's leading platform for cloud services and hosting services. We successfully support our customers in their business development.

More than 4000 employees in several countries around the world are working to meet the requirements and wishes of our 8.5 million customers.

We promote the development of our employees and their different talents, interests and languages.

We value diversity and welcome all applications - regardless of, for example, gender, nationality, ethnic or social origin, religion, disability, age as well as sexual orientation and identity, physical characteristics, marital status or any other irrelevant factor subject to applicable law.

Recruiting Team IONOS
Hinterm Hauptbahnhof 3-5
D-76135 Karlsruhe