DevOps Engineer CDN/DNS (all genders)

  • Frankfurt am Main
  • 2023-07-04

BE ONE STEP AHEAD: Help us make the internet a safer place!

A multi-billion IT security market, and Link11 is in the middle of it! There could be over 50 million DDoS attacks worldwide this year; the trend and tension are rising. With this in mind, we protect numerous well-known customers worldwide with our cloud-based, automated and patented DDoS protection solution. With this, we secure IT networks and critical applications so companies can continue to pursue their digital strategy without suffering outages. Speed and precision are crucial. In this, we are ahead of the game because we are a specialized European IT security provider in the field of protecting web servers and infrastructures from cyber attacks Almost 100 employees work across our international locations - Frankfurt, Hamburg and Vancouver - some 100% remotely. Shape our digital future with Link11 in Frankfurt am Main or remotely.
We love what we do and live our mission. That's exactly what we want to inspire you with. Come on board and join the Link11 team: With you, we want to help our customers succeed in the digital world of the future!

Your future challenges:

  • You are passionate about configuring and maintaining a high-performance Content Delivery Network (CDN) with caching policies, load balancing, and SSL/TLS encryption for an optimal customer experience.
  • You upscale the CDN and DNS infrastructure to cope with rising traffic demands.
  • You assist us in guaranteeing high availability through implementing redundancy and failover mechanisms.
  • You coordinate troubleshooting of problems with operating systems and network connections.
  • You will act as a liaison between the development and operations departments, providing support on both sides of complex debugging and troubleshooting tasks.

Your Skills:

  • You have a solid understanding of Nginx and its modules, including how to configure and customize the web server for optimal performance and security.
  • You are familiar with the concepts behind DNS and experienced in managing and troubleshooting DNS servers.
  • You have extensive experience with Linux operating systems and network protocols such as TCP/IP, HTTP, HTTPS, SSL/TLS, and DNS.
  • You have a passion for debugging complex systems and solving tricky puzzles. You are able to analyze log files and identify and resolve issues in a timely manner.
  • You have programming skills in e.g. Bash, Perl, and Python
  • You are familiar with monitoring tools such as Nagios, Zabbix, or Prometheus to proactively monitor system health and performance.
  • You want to share your knowledge and learn new things
  • You are able to work independently and in a team. You communicate requirements, issues, and status updates effectively with both technical and non-technical contacts.
  • You have excellent communication skills, at least in English or German.

We are Link11:

  • We live our startup mentality at heart. The professional framework gives us the growth and stability of Link11- founded in 2005. We are still strong today working alongside the founders and the management team.
  • We are full of energy, have short decision-making paths and bring changes directly on the way.
  • We live a positive, interactive and appreciative working atmosphere in which all employees can contribute.
  • We encourage the further development of our employees.
  • We are willing to leave our comfort zone for innovation and improvement because we want to be the best in the market.
  • We have received several awards for our forward-looking solutions.

Link11 is the right place for you:

  • Become part of a highly motivated team in which we treat each other with respect.
  • Meet your colleagues at eye level. We are all equal and without barriers.
  • Live and develop your strengths in a friendly atmosphere.
  • Organise yourself in a flexible working model, because you are more than just your job.
  • Lead us to success with your skills.
  • Community is the trump card: team events, sundowners, after work parties bring us together (also internationally).
  • Taking care of our team doesn't end at the coffee machine or a filled fruit basket!
  • Look forward to interesting benefits such as fitness, JobRad, support for daycare fees and much more. We are cooperation partners of national and international associations and authorities.

Information and contact

Do you have any questions about this position? Contact us directly at Your contact person is Nadine Saewert from the People Management department.
We look forward to getting to know you and learning more about you as a person and your professional career.

Got it? Then simply apply via our careers page at, stating your salary expectations and your soonest possible starting date.
We promise we will reply to you within 48 hours of receiving your application with feedback on whether we can get together for a telephone interview!

Link11 GmbH
Lindleystrasse 12
D-60314 Frankfurt am Main


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