Mainframe Systems Analyst
At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.
Leidos is seeking a Mainframe Systems Analyst to support a large healthcare contract based in Baltimore. This is a remote position supporting the mission of the Centers for Medicare & Medicaid Services (CMS).
In this role, you will provide mainframe infrastructure services to CMS application teams and other stakeholders, ensuring reliable performance, availability, and support of critical systems. The ideal candidate brings strong mainframe expertise and a collaborative approach to supporting both technical teams and end users.
Primary Responsibilities (Daily operational tasks include:)
Analyze and support Medicare claims processing within the Common Working File (CWF), identifying trends, root causes, and opportunities for system and process improvement.
Serve as a liaison between CMS, MAC stakeholders, and technical teams to investigate issues, clarify requirements, and support resolution of production incidents.
Evaluate and resolve complex data and system issues, including performing data corrections using CWF HICR transactions, ensuring accuracy and compliance with Medicare policies.
Participate in CMS change request early involvement calls, providing operational insights, impact analysis, and feedback on proposed system enhancements.
Conduct root cause analysis on production issues and recommend solutions to improve system performance and business outcomes.
Support ticket triage and lifecycle management, ensuring clear documentation, impact assessment, and communication with stakeholders.
Generate and analyze CMS monthly reporting metrics to identify patterns, risks, and opportunities for operational improvement.
Collaborate with cross-functional teams to support ongoing system enhancements, production stability, and business process alignment.
Support 24×7 production processing cycles and special processing needs for release related utilities as needed.
Basic Qualifications:
Bachelor’s degree and 4+ years of Medicare experience (or equivalent combination of education/experience may be considered).
Hands on experience supporting mainframe operations and federal health claims processing.
Strong proficiency with TSO/ISPF, IBM utilities, and enterprise scheduling tools (TWS, TDWC).
Familiarity with incident/ticket management tools and workflow processes.
Excellent written and verbal communication skills, including ability to coordinate across technical and non-technical teams.
Detail oriented, organized, and capable of managing multiple concurrent tasks in a fast-paced production environment.
Ability to obtain and maintain a CMS Public Trust clearance.
All candidates supporting the CMS programs must have lived in the United States at least three (3) out of the last five (5) years prior in order to be considered.
Additional Experience Required:
TSO/ISPF/JCL
Service Now
Microsoft Office Suite
Preferred Qualifications:
Experience working with CMS (Center for Medicare/Medicaid Services).
Jira / Confluence / ALM Micro-Focus
Certified Scrum Master (CSM).
Certified Scrum Product Owner (CSPO).
Experience in z/OS, z/VM, z/Linux, or UNIX environments.
The Mission
The Digital Modernization Sector is focused on delivering performance-based IT services and repeatable solutions to include applying cloud-factory and aaS (as a Service) capabilities and integrating commercial products to provide a comprehensive digital engineering approach to IT transformation. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. To explore and learn more, click here!
Come join our rapidly growing team and enjoy these benefits:
Paid Time Off (PTO) accrued based on Leidos policy, up to 3 weeks a year.
Eleven (11) paid holidays per year.
Access to benefits on day one including medical and dental insurance, 401K, Life, AD&D, Voluntary Disability plans.
Ongoing training to support your success.
Tuition reimbursement based on Leidos policy.
Discounted Leidos stock purchase and other Employee Discounts.
Are you ready to make an impact? Begin your journey of a flourishing and meaningful career, share your resume with us today!
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting:
May 5, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $73,450.00 - $132,775.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.