Senior System Engineer AIX (m/f/d)

  • Flexible

    Palma, Spain

    Lisbon, Portugal

    Porto, Portugal

    Madrid, Spain

  • 126506

  • Hybrid

  • Permanent

  • Full Time

  • depends on local regulations



  • 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 (7×24) 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. 


Do you have any questions regarding this job offer? Get in touch!

Julia Sobotzke


Please note: Only for questions or queries. Applications will only be accepted via the Careers Portal.