Fiserv
Job Type : Other
Date Posted : 6 November 2025
Calling all innovators - find your future at Fiserv.
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
Senior Systems Engineer (Unisys)
About your role:
You will lead all Unisys ClearPath MCP OS, Network, and other major software release planning and implementations. You will also configure, plan and manage system hardware upgrades and act as a technical lead on larger projects.
What you'll do:
Implementing and maintaining procedures to collect performance metrics and produce system performance and capacity reports
Perform analyses (e.g., performs technical research to assess system performance and capacity)
Manage and maintain 24x7 uptime on the mainframes including client related connectivity, application and platform issues
Research products, solutions, technologies, and apply results to create presentations and documentation
Establish and implement auditing standards and present evidence to the auditors (internal and external) for CAS, PCI, FFIEC, and SOC assessments
Identify system performance bottlenecks and recommending performance improvement solutions
Colloborate with business leaders to provide support, advice, and guidance on the correct application of products and technology solutions
Apply technical expertise to support the deployment of technology architecture and the total system solution
Experience you'll need to have:
6+ years of experience on Unisys MCP systems
5+ years of experience in infrastructure engineering in a Master Control Program (MCP) operating system environment, EMC disk subsystems, Work Flow Language (WFL), Communication Management System (COMS)
5+ years of experience with Windows, Data and Structure Definition Language (DASDL), and Open Distributed Transaction Processing (DTP)
3+ years of experience in solution architecture, including designing and implementing scalable
Bachelor's degree in a related field or an equivalent combination of education, military, and work experience
Experience that would be great to have:
COBOL experience
Excellent collaboration skills with the ability to effectively communicate with technical and non-technical stakeholders.
Proven ability to work in cross-functional teams and provide technical guidance
Strong problem-solving skills and analytical skills, with the ability to diagnose complex infrastructure issues, identify root causes, and implement effective solutions
How you'll work:
This role requires being on-call during non-standard and/or overnight hours on a rotational basis
This role requires use of a computer and audio equipment
#SystemsEngineer
#MainframeJobs
#MCP
#Unisys
#WFL
#COMS
#DASDL
#LegacySystems
#LI-CD
Salary Range
$109,500.00 - $174,000.00
These pay ranges apply to employees in Illinois, California and District of Columbia. Pay ranges for employees in other states may differ.
It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.
For incentive eligible associates, the successful candidate is eligible for an annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company's sole discretion.
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 AskHR.US@fiserv.com . 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.
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