Sr AIX Systems Administrator

What success looks like in this role:

• Administer, maintain, and support IBM AIX, UNIX, and Linux server environments
• Perform system installations, configurations, patching, and upgrades across AIX and Linux platforms
• Manage and support application servers in a secure, high-availability environment
• Monitor system performance, troubleshoot issues, and implement corrective actions
• Ensure systems are properly secured, including patch management and system hardening
• Support backup, recovery, and disaster recovery operations
• Collaborate with engineering and infrastructure teams to support system integration and performance optimization
• Maintain system documentation, standard operating procedures, and configuration baselines
• Participate in on-call rotation and provide support for incident response as needed

• Hands‑on experience with IBM AIX administration and UNIX server environments
• Strong experience supporting Linux environments (e.g., RHEL, CentOS, or similar)
• Experience with system administration in enterprise environments
• Familiarity with application server administration (e.g., Web Sphere, Web Logic, or similar)
• Experience with system monitoring, performance tuning, and troubleshooting
• Experience in highly regulated or enterprise environments
• Familiarity with automation tools (e.g., shell scripting, Ansible)
• Knowledge of virtualization technologies and storage systems

BA/BS degree and 4-6 years' relevant experience OR equivalent combination of education and experience

This role may require access to export-controlled commodities and technology. Therefore, to conform to U.S. export control regulations, applicant should be eligible for any required authorizations from the U.S. Government.

Unisys is proud to be an equal opportunity employer that considers all qualified applicants without regard to age, caste, citizenship, color, disability, family medical history, family status, ethnicity, gender, gender expression, gender identity, genetic information, marital status, national origin, parental status, pregnancy, race, religion, sex, sexual orientation, transgender status, veteran status or any other category protected by law.

This commitment includes our efforts to provide for all those who seek to express interest in employment the opportunity to participate without barriers. If you are a US job seeker unable to review the job opportunities herein, or cannot otherwise complete your expression of interest, without additional assistance and would like to discuss a request for reasonable accommodation, please contact our Global Recruiting organization at  or alternatively Toll Free:  (Prompt
4). US job seekers can find more information about Unisys' EEO commitment here.