A young woman can be seen in the foreground. She has a headset with a microphone on and is smiling. She seems to be listening to someone. In the background is a larger building with a large glowing TUI logo.

Senior System Engineer AIX (m/f/d)



Workplace:  Hybrid
Type of contract:  Permanent
Working time:  depends on local regulations
Job ID:  126506



  • Ensure 24/7 system availability. 
  • Provide cross-departmental assurance of the required service quality. 
  • Provide services according to the service definition or the design and quality agreed with the customer. 
  • Plan, deploy and test new releases within the given system architecture and customise the systems in coordination with customers or application developers. 
  • Support system-specific tasks in the context of application migrations. 
  • Analyse existing systems in terms of performance, utilisation and degree of utilisation as well as advise customers or application developers on cost optimisation, tuning potentials and performance effects. 
  • Develop and implement backup and restart concepts. 
  • Develop and implement appropriate procedures and standards, and monitor compliance with privacy and data security requirements. 
  • Assign and manage system access rights. 
  • Automate operations. 
  • Ensure up-to-date documentation of the assigned systems and system components. 
  • Administrate Network Installation Management (NIM) tool. 
  • Administrate Hardware Management Console (HMC) for IBM Power-Server. 
  • Manage firmware patches. 
  • Plan, deploy and test system migrations within the given system architecture in coordination with customers. 
  • Develop and implement system monitoring and Unix system-programming. 
  • Support of internal and external audits. 
  • Communicate with external service providers. 






  • Degree in computer science or comparable subject, or comparable on-the-job knowledge and experience. 
  • Practical experience in  IT service management (ITIL). 
  • Pronounced ability to work in international teams. 
  • Quick on the uptake  combined with the ability to understand complex contexts and process insights gained. 
  • Experience and knowledge in the problem determination method in the environment of the mentioned products. 
  • Very good spoken and written German and English language skills (preferably German native). 
  • Willingness to be on call (7x24) and to travel. 
  • High level of initiative and a strong sense of responsibility. 
  • High customer and service orientation. Safe and attentive behaviour towards customers. 
  • We encourage people with disabilities to apply. 




  • Working in the leading global tourism group: We stand for intercultural cooperation and offer the opportunity to work in international projects and teams.
  • Fantastic holiday benefits including discounts, special offers
  • Mobile working, flexible working hours and working from abroad: We believe that work is something you do, not where you go. Our offer: TUI Way of Working  
  • Health and Wellbeing support in five key areas – Health, Social, Community, Career and Financial
  • Development and career opportunities: We offer a wide range of digital training and international career opportunities.
  • Additional benefits relevant to the local market that you'll be based in

At TUI, we know people are as diverse as the destinations we send our customers to. ​ ​We love to see your uniqueness shine through and inspire the future of travel.​


If you have any questions, please contact the Recruiter for this role via the contact information included in the advert.


Please Note: These vacancies will be managed by an International Recruitment Team and therefore your application may be viewed by TUI colleagues outside your home country. 



Job Segment: Systems Engineer, Tourism, Travel Industry, Engineer, Engineering, Travel