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Jobs at Open-Xchange

Interested in becoming part of something big?
You have landed in the right place. We are always looking for great talent to join our variety of departments. Check out our current job vacancies below or send us your speculative application. Become part of an exciting team at OX.


Release and Integration Engineer (Engineering Services)

Don’t just go to work. Thrive.
We look for people who are committed to openness and have the will to revolutionize the market. You will join OX as part of a special team. As a talented individual, you can advance within your department as well as getting the opportunity to work for OX globally.

Our Vision 
A borderless internet that is open, safe and free.

We are eMail  
Worldwide companies like Comcast, Cox, 1&1, STRATO, Deutsche Telekom, Vodafone, Orange, Unitymedia, ItaliaOnline, Host Europe, NetCologne, network solutions /, Rackspace, Softbank, and GoDaddy use our "white label" products for eMail and collaboration.

Open Source is our foundation  
The mix of divergent perspectives, corporate objectives, and personal goals is our foundation and speeds up innovation.


You can make a difference as a Release and Integration Engineer at OX

This position is a launch pad for highly talented individuals into various opportunities, within the many business lines of OX globally. As a member of our innovative team, you will have the unique and rewarding opportunity to be part of new and large scaling projects and shape the way customers get their needs fulfilled. The successful candidate will have knowledge of and experience in the implementation and continuing support of cross platform build systems, continuous integration systems, automated testing, packaging systems, multiple branched environments, and source control integration.


Your passion / Your job

  • Coordinate software release operations for an innovative software supplier across international customers and developer teams
  • Architect, set up and maintain automated software release cycles (development, integration and system testing)
  • Utilize the latest technology and programming techniques to realize the full capacity of OX
  • Support continuous improvement by investigating alternatives and technologiesStrong Customer relationships and service deliveries are part of your work


What do you bring to the table

  • BS/MS degree in Computer Science, Engineering or a related subject
  • Strong experience with build frameworks
  • Strong experience with automation/configuration management using the latest tools (Jenkins preferred)
  • Strong knowledge of quality management and test engineering
  • Strong knowledge of Source Code Control Systems (Git required) 
  • Strong Linux command line and scripting skills
  • Experience using Docker and Chef to create reproducible build environments 
  • General knowledge and experience with software life cycle process
  • Good organizational skills and a proven ability to work effectively in a high pressure environment as a member of a team and individually
  • Strong customer focused, team oriented communication skills with emphasis on IT Infrastructure and software development
  • Good verbal and written communication skills in English
  • Must be very organized with a strong ability to complete work in an environment with multiple daily interruptions. Able to multi-task. Excellent attention to detail and ability to work well under pressure.
  • Strong experience with Linux packaging (dpkg and rpm)


What do we offer

  • Exciting work on a modern open-source cloud software in an internationally operating
  • Plenty of scope for your own ideas and design decisions
  • Flexible working hours and the ability to work from home
  • Equipped with the up-to-date hardware
  • Trainings and continuous personal development
  • Flat hierarchies with an "Open Door" philosophy
  • A company pension scheme (401K)
  • Parental leave opportunity
  • An excellent health plan

About Open-Xchange

Open-Xchange (OX) is a market leader in Mail / Messaging and DNS-based security services, with more than 200m seats sold through international hosting and telco providers worldwide, including partners such as 1&1, Orange, Italiaonline, Comcast, GoDaddy or Softbank.

We at OX have our roots in Open Source, and this has shaped our view of the world and culture – open, diverse, and with a bias to act, giving everyone at OX room to take responsibility within their team and grow. OX believes in an internet that is open, safe and free. We want to create competitive products that allow our providers to deliver secure internet services with a great user experience, and that respect privacy and generate value.

With some 270+ people worldwide, OX develops and operates Open Source software (aaS) for mail / messaging (OX App SuiteOX Guard) and collaboration / productivity (OX DriveOX Documents). OX’s  Dovecot is the world’s dominant open-source IMAP server software, and our PowerDNS provides secure DNS services to our telco customers and their users.

Our business is fast-paced and changing constantly. We are looking for people who share our beliefs, who are out there to make a difference, are entrepreneurial and enjoy working in a high-tech environment as part of a truly international team. OX is headquartered in Cologne, with further locations throughout Germany (Hamburg, Bremen, Dortmund, Olpe and Nuremberg), the USA (Louisville, KY), Finland, the Netherlands, Italy, France, Spain and Japan (Tokyo).

If you are interested, please contact Jochen F. Schude for further information - or send us your paperless application with a cover letter including the job ID (see at the top left corner), tabular CV, certificates, salary expectations and the earliest possible date of entry by e-mail to recruiting at