AIX/Linux Infrastructure Engineer

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We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv.

Job Title

AIX/Linux Infrastructure Engineer

What does a successful AIX/Linux Infrastructure Engineer do at Fiserv?

As an AIX/Linux Infrastructure Engineer, you will be responsible for the administration, maintenance, and optimization of AIX and Linux systems supporting the Financial Institutions Group. You will ensure system reliability, performance, and security across a 24/7 operational environment.

You'll play a key role in managing infrastructure components, troubleshooting system-level issues, and collaborating with cross-functional teams to support mission-critical applications.

What you will do:

• Manage and maintain AIX and Linux servers, ensuring high availability and performance
• Troubleshoot and resolve system-level issues, including hardware, OS, and network-related problems
• Implement and maintain system monitoring tools and processes to proactively identify and address performance bottlenecks
• Collaborate with application, infrastructure, and support teams to deploy and maintain system configurations
• Automate system administration tasks using shell scripting or configuration management tools
• Participate in on-call rotation and incident response for infrastructure and application related issues

What you will need to have:

• 4+ years of experience in AIX and/or Linux system administration
• 4+ years of experience with system monitoring and performance tools such as Nagios, Splunk, Dynatrace, or similar
• 4+ years of experience with automation and scripting (e.g., Bash, Python, or Perl)
• Bachelor's degree in computer science, information systems, or a related field, or equivalent combination of education and experience

What would be great to have:

• Familiarity with incident management systems and troubleshooting methodologies
• Experience with virtualization technologies (e.g., PowerVM, VMware)
• Knowledge of storage and backup solutions in Unix/Linux environments
• Experience in the fintech domain or supporting financial applications
• Understanding of security best practices and compliance requirements

Important info about this role:

• We're better together! This role is fully on-site
• This is a full-time, direct-hire position, and no contract options or unsolicited agency submissions will be considered
• In order to be considered, you must be legally authorized to work in the U.S. without need for visa sponsorship now or in the future

This role is not eligible to be performed in Colorado, California, District of Columbia, Hawaii, Illinois, Maryland, Minnesota, New Jersey, New York, Nevada, Rhode Island or Washington.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

Please note that salary ranges provided for this role on external job boards are salary estimates made by outside parties and may not be accurate.

Thank you for considering employment with Fiserv. Please:

• Apply using your legal name
• Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).

Our commitment to Equal Opportunity:

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv's Disability Accommodation Policy for additional information.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

Warning about fake job posts:

Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.