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Mainframe Administration Jobs in Washington (NOW HIRING)

HRUCKUS

z/OS Systems Programmer

Annapolis, MD · On-site

... administration • Mainframe experience in a cloud, MFaaS, or hosting environment • Familiarity with federal compliance frameworks (NIST, STIG, RMF) • Bachelor's degree in computer science ...

SOFTHQ

DB2 Z/OS Consultant

Ashburn, VA · On-site

Different versions such as DB2 9 through 12 Detailed 5-8 years of DBA experience in DB2 on zOS Database Administration and SupportThorough knowledge and experience of working on DB2 on Mainframes.

SOFTHQ

DB2 Z/OS Consultant

Ashburn, VA · On-site

Different versions such as DB2 9 through 12 Detailed 5-8 years of DBA experience in DB2 on zOS Database Administration and SupportThorough knowledge and experience of working on DB2 on Mainframes.

Infojini Inc

Desktop Support

Washington, DC · On-site

$26.25 - $35.50/hr

... Mainframe resources. 7. Knowledge of BlackBerry enterprise server client administration and/or Blackberry or similar smart phone support. 9. Strong interpersonal and communication skills who can work ...

InstantServe LLC

Systems Administrator

Rockville, MD · On-site

* Perform Windows Systems Administration * 4+ years of experience administering Windows environments ... Perform the daily activities of configuration and operation of systems which may be mainframe, mini ...

Infojini Inc

Helpdesk Support

Washington, DC

$23.25 - $31.75/hr

... Mainframe resources. 7. Knowledge of BlackBerry enterprise server client administration and/or Blackberry or similar smart phone support. 9. Strong interpersonal and communication skills who can work ...

Infojini Inc

Desktop Support

Washington, DC · On-site

$22.75 - $29/hr

... Mainframe resources • Knowledge of BlackBerry enterprise server client administration and/or Blackberry or similar smart phone support • Strong interpersonal and communication skills who can work ...

Infojini Inc

Desktop Support Analyst

Washington, DC · On-site

$26.25 - $35.50/hr

... Mainframe resources. 6. Strong Level 1 network and VPN diagnosis and troubleshooting skills. 7. Knowledge of BlackBerry enterprise server client administration and/or Blackberry or similar smart ...

System One

Database SME

Greenbelt, MD · Remote

... or administration * 4+ years of experience with IBM DB2 database management * 4+ years of experience using IBM z/OS mainframe operating systems * Strong understanding of government security ...

System One

Database SME

Greenbelt, MD · Remote

... or administration * 4+ years of experience with IBM DB2 database management * 4+ years of experience using IBM z/OS mainframe operating systems * Strong understanding of government security ...

System One

Database SME

Greenbelt, MD · Remote

... or administration * 4+ years of experience with IBM DB2 database management * 4+ years of experience using IBM z/OS mainframe operating systems * Strong understanding of government security ...

System One Holdings, LLC

Database SME

Greenbelt, MD · On-site

$135K - $150K/yr

... or administration * 4+ years of experience with IBM DB2 database management * 4+ years of experience using IBM z/OS mainframe operating systems * Strong understanding of government security ...

System One

Database SME

Greenbelt, MD · Remote

... or administration * 4+ years of experience with IBM DB2 database management * 4+ years of experience using IBM z/OS mainframe operating systems * Strong understanding of government security ...

Peraton

Senior Software Test Engineer

Lanham, MD · On-site

$80 - $128/hr

Knowledge of current IRS tax administration software applications * Experience with IBM Mainframe or Unisys Mainframe applications and operations * Market knowledge of various classes of test ...

Peraton

Senior Software Test Engineer

Lanham, MD · Hybrid

$110K - $143K/yr

Knowledge of current IRS tax administration software applications * Experience with IBM Mainframe or Unisys Mainframe applications and operations * Market knowledge of various classes of test ...

Peraton

Mid-Level Software Test Engineer

Lanham, MD · On-site

$66K - $106K/yr

Knowledge of current IRS tax administration software applications * Experience with IBM Mainframe or Unisys Mainframe applications and operations * Market knowledge of various classes of test ...

Peraton

Mid-Level Software Test Engineer

Lanham, MD · On-site

Knowledge of current IRS tax administration software applications * Experience with IBM Mainframe or Unisys Mainframe applications and operations * Market knowledge of various classes of test ...

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Mainframe Administration information

What are the key skills and qualifications needed to thrive as a mainframe administrator, and why are they important?

To thrive as a Mainframe Administrator, you need a solid understanding of mainframe operating systems (such as z/OS), system configuration, and troubleshooting, typically supported by a degree in computer science or related IT experience. Familiarity with tools like IBM System Automation, JCL, RACF, and monitoring solutions, as well as certifications such as IBM Certified System Administrator, is highly valued. Strong analytical thinking, attention to detail, and effective communication skills help administrators efficiently resolve issues and collaborate with IT teams. These skills and qualifications are essential to ensure the reliability, security, and optimal performance of critical enterprise computing environments.

What are some common challenges faced by mainframe administrators and how can they be addressed?

Mainframe Administrators often encounter challenges such as managing legacy systems, ensuring system uptime, and balancing security with accessibility. Keeping up with evolving technologies and integrating mainframes with modern applications can require continuous learning and adaptation. Effective communication with development and operations teams is vital to ensure seamless updates and minimize downtime. Proactively monitoring system performance and applying best practices for disaster recovery can also help mitigate risks and maintain reliability.

What is the difference between Mainframe Administration vs Mainframe Support?

AspectMainframe AdministrationMainframe Support
CertificationsIBM Certified System Administrator, z/OS certificationsSimilar certifications, often including z/OS support certifications
Work EnvironmentData centers, enterprise IT departments managing mainframe systemsHelp desks, support teams assisting users and troubleshooting issues
ResponsibilitiesSystem setup, configuration, maintenance, performance tuningIssue resolution, user support, incident management
Industry UsageFinancial institutions, government agencies, large corporationsSame industries, focusing on user support and problem resolution

Mainframe Administration involves managing and maintaining mainframe systems, ensuring optimal performance and security. Mainframe Support focuses on assisting users, troubleshooting issues, and resolving incidents. Both roles require similar certifications and are vital in industries relying on mainframe technology, but they differ in daily responsibilities and focus areas.

What is mainframe administration?

Mainframe Administration involves managing and maintaining mainframe computer systems, which are powerful servers used by large organizations for critical applications and bulk data processing. Mainframe Administrators are responsible for installing, configuring, monitoring, and securing mainframe hardware and software. They ensure system performance, troubleshoot technical issues, handle backup and recovery, and apply updates or patches to keep systems running smoothly and securely. This role often requires strong technical skills, attention to detail, and the ability to work with legacy systems.
What are popular job titles related to Mainframe Administration jobs in Washington? For Mainframe Administration jobs in Washington, the most frequently searched job titles are:
What job categories do people searching Mainframe Administration jobs in Washington look for? The top searched job categories for Mainframe Administration jobs in Washington are:
Mainframe Administration jobs near you
Infographic showing various Mainframe Administration job openings in Washington as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 13% Part Time, 1% Temporary, and 2% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution.

z/OS Systems Programmer

HRUCKUS

Annapolis, MD • On-site

Full-time

Re-posted 21 days ago

Job description

Job Summary:
HRUCKUS is a Veteran-Owned management consulting firm specializing in Technical and Cleared Recruiting for defense agencies. They are seeking a Lead z/OS Systems Programmer to support, maintain, and enhance the client’s IBM mainframe environment, ensuring the stability, security, and performance of mission-critical systems.
Responsibilities:
• z/OS Installation & Maintenance: Install, configure, and maintain z/OS and related IBM system software; manage SMP/E processes and PTF/RSU installations; maintain PARMLIB/PROCLIB and plan IPLs.
• Subsystem Administration: Support and tune subsystems such as JES2/JES3, CICS, DB2, MQ, and IMS; troubleshoot subsystem issues to ensure performance and availability.
• Performance & Capacity Management: Perform workload analysis using RMF/SMF; tune WLM policies; provide recommendations to optimize CPU, memory, I/O, and storage utilization.
• Storage & I/O Configuration: Work with storage teams on SMS/HSM and DASD management; support IODF/HCD updates; validate TS7700/VTL replication.
• Security & Compliance: Support RACF rules and digital certificates; assist with STIG compliance and vulnerability remediation; ensure configurations align with regulatory standards.
• Automation & Operations: Develop automation scripts (REXX, CLIST, SA/Ops); support job scheduling; integrate with monitoring and alerting tools.
• Incident & Change Management: Provide Tier III support for escalated issues; conduct root cause analysis (RCA); participate in change management and DR tests.
• Documentation & Collaboration: Create technical documentation and SOPs; collaborate with cross-functional teams; assist in modernization and cloud integration initiatives.
Qualifications:
Required:
• Active Secret Clearance
• 8+ years of hands-on experience as a z/OS Systems Programmer
• Deep understanding of z/OS internals, JES2/JES3, WLM, SMP/E
• Experience with one or more subsystems (CICS, DB2, IMS, MQ)
• Strong diagnostic and problem-solving skills
• Experience with REXX, JCL, and mainframe utilities
• Knowledge of TCP/IP, VTAM, and network configuration on z/OS
• Experience with DR, backup/restore, and high availability environments
• Strong analytical and troubleshooting skills
• Excellent communication and documentation abilities
• Ability to work in 24x7 mission-critical environments
• Collaborative team player with a focus on quality and reliability
• Ability to adapt and learn emerging mainframe and automation technologies
Preferred:
• Experience with z/OSMF, Ansible for z/OS, and automation frameworks
• Exposure to security tools (zSecure) and RACF administration
• Mainframe experience in a cloud, MFaaS, or hosting environment
• Familiarity with federal compliance frameworks (NIST, STIG, RMF)
• Bachelor’s degree in computer science, Information Systems, or equivalent experience
Company:
Hruckus is a management consultancy that offers strategic sourcing, IT strategy, business case analysis and program management services. Founded in 2014, the company is headquartered in Washington, USA, with a team of 11-50 employees. The company is currently Early Stage.

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