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Mainframes Developer Jobs in Ashburn, VA (NOW HIRING)

System One

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MAINFRAME ENGINEER

Vienna, VA · On-site

$60 - $80/hr

Mainframe Engineer Location: Vienna VA - Hybrid Pay Rate: Open to Both C2C and W2 options Position Type: Multiyear Contract Description : * Strong ability to investigate operational, technical, and ...

New

System One Holdings, LLC

Mainframe Engineer

Merrifield, VA · On-site

$70 - $90/hr

Mainframe Engineer Location: Vienna, VA Type: Long Term W-2 Contract Compensation: Negotiable Work Model: Hybrid - onsite and remote Hours: 40 hrs a week Security Clearance: None but full background ...

TekCommands Inc

Sr Mainframe Developer / Support

Mclean, VA · On-site

$49.50 - $63.75/hr

Experience in mainframe systems Experience in Application Support Strong communication skills A minimum 8 - 10 years of systems analysis/application development experience Background in development ...

System One

Mainframe Engineer

Merrifield, VA · Remote

Mainframe Engineer Location: Vienna, VA Type: Long Term W-2 Contract Compensation: Negotiable Work Model: Hybrid - onsite and remote Hours: 40 hrs a week Security Clearance: None but full background ...

New

Apex Systems

Mainframe Engineer

Merrifield, VA · On-site

Job#: 3046406 Mainframe Engineer Location: Merrifield, Virginia (Hybrid) Role Overview This position requires a strong ability to investigate operational, technical, and business problems to ...

Accenture

Mainframe Specialist

Herndon, VA · On-site

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

Corinth

COBOL Programmer

Leesburg, VA · Remote

$86K - $97K/yr

Proficiency in ISPF and CICS for mainframe programming and application support. * Strong working knowledge of JCL, Flat-Files, CopyLibs, and database updates, including hierarchical (SUPRA) and ...

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Showing results 21-40

All JobsMainframes Developer JobsMainframes Developer Jobs in Ashburn, VA

Mainframes Developer information

See Ashburn, VA salary details

$49.1K

$114.4K

$169.8K

How much do mainframes developer jobs pay per year?

As of Aug 18, 2026, the average yearly pay for mainframes developer in Ashburn, VA is $114,373.00, according to ZipRecruiter salary data. Most workers in this role earn between $92,000.00 and $132,900.00 per year, depending on experience, location, and employer.

What is the difference between Mainframes Developer vs Mainframes Analyst?

AspectMainframes DeveloperMainframes Analyst
Required CredentialsTypically a degree in Computer Science or related field; certifications like IBM Certified SpecialistSimilar credentials; often holds certifications in mainframe systems and analysis
Work EnvironmentDevelops, codes, and tests mainframe applications in a software development settingAnalyzes existing mainframe systems, gathers requirements, and supports system improvements
Employer & Industry UsageUsed by banks, insurance companies, and large enterprises for application developmentEmployed in similar industries for system analysis, troubleshooting, and process optimization

While both roles require knowledge of mainframe systems and similar credentials, Mainframes Developers focus on creating and maintaining mainframe applications, whereas Mainframes Analysts analyze existing systems to improve performance and efficiency. Both roles are vital in large enterprise IT environments.

Is a mainframes developer a good career?

A mainframes developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical data processing. The role offers stable employment, competitive salaries, and opportunities to work with legacy systems and mainframe programming languages like COBOL. However, it requires specific skills and certifications, and the field may have limited growth compared to emerging technologies.

Is a mainframes developer still in demand?

Mainframes developers are still in demand in industries such as finance, government, and healthcare that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand persists due to the ongoing need to maintain and upgrade existing mainframe applications. However, the number of new positions is limited compared to emerging technologies, and skills in mainframe modernization are increasingly valued.

What does a mainframes developer do?

A mainframes developer designs, codes, tests, and maintains applications running on mainframe computers, often using languages like COBOL, PL/I, or Assembler. They ensure the stability, security, and efficiency of large-scale enterprise systems, frequently working with legacy code and mainframe-specific tools in a structured environment.

What are popular job titles related to Mainframes Developer jobs in Ashburn, VA?

For Mainframes Developer jobs in Ashburn, VA, the most frequently searched job titles are:

What job categories do people searching Mainframes Developer jobs in Ashburn, VA look for?

The top searched job categories for Mainframes Developer jobs in Ashburn, VA are:

What cities near Ashburn, VA are hiring for Mainframes Developer jobs?

Cities near Ashburn, VA with the most Mainframes Developer job openings:

Mainframes Developer jobs near you
Infographic showing various Mainframes Developer job openings in Ashburn, VA as of August 2026, with employment types broken down into 82% Full Time, 4% Part Time, and 14% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $114,373 per year, or $55 per hour.

Mainframe Engineer - 17428

Seneca Resources Company, LLC

Vienna, VA • On-site

$75/hr

Contractor

Medical, Dental, Vision, Retirement

Posted 4 days ago

Job description

Senior Mainframe Automation Engineer
Position Title: Senior Mainframe Automation Engineer
Location: Vienna, VA - Hybrid, 3 days onsite per week
Clearance Requirements: None specified
Position Status: Contract
Pay Rate: $75/Hr On W2
Experience: 10+ years
Openings: 1
Position Description
Seneca Resources is seeking a Senior Mainframe Automation Engineer to design, implement, and support enterprise-scale automation solutions across IBM z/OS environments. This role is ideal for a highly experienced mainframe professional with deep expertise in IBM System Automation for z/OS, REXX, IBM NetView, z/OS operations, and high-availability automation.
The successful candidate will investigate complex operational and technical challenges, develop scalable automation solutions, improve system reliability, and reduce manual intervention across critical business services. This position will also provide technical leadership, mentoring, and guidance while partnering with technical teams, business stakeholders, and leadership.
Key Responsibilities
  • Design, develop, implement, and maintain enterprise automation solutions for IBM z/OS environments.
  • Administer and configure IBM System Automation for z/OS (SA z/OS), including policy development, managed resource automation, automation definitions, resource dependency models, and policy database maintenance.
  • Develop advanced REXX programs, command processors, automation routines, operational tools, and automation scripts.
  • Configure and maintain IBM NetView automation, including automation tables, message automation, command lists, PIPEs, event processing, and policy-driven automation.
  • Develop and support automation across critical z/OS subsystems and middleware, including CICS, Db2, IMS, JES2/JES3, MQ, and TCP/IP.
  • Design automation for CICS availability, startup, shutdown, recovery, restart, and health monitoring.
  • Support Parallel Sysplex environments and cross-system automation strategies.
  • Develop high-availability, recovery, restart, and self-healing automation solutions.
  • Work with IBM Workload Scheduler, including IWS, TWS, and ZWS, to support enterprise workload automation.
  • Support z/OS UNIX System Services (USS/OMVS), including automation of UNIX processes and shell scripts.
  • Integrate mainframe automation with monitoring and event management platforms such as IBM OMEGAMON, ServiceNow, and Moogsoft.
  • Identify opportunities to automate operational processes across IBM z/Series, UNIX, and Windows platforms.
  • Troubleshoot complex operational, technical, and business problems and recommend reliable automation solutions.
  • Analyze requirements and translate business and technical needs into scalable automation strategies.
  • Lead, guide, and mentor technical team members while promoting automation best practices and continuous improvement.
  • Communicate complex technical concepts effectively to engineers, business partners, and senior leadership.
  • Participate in an on-call rotation when required.
  • Improve operational efficiency, system availability, reliability, and service resilience through automation.
Required Skills & Qualifications
  • 10+ years of experience in mainframe systems, automation engineering, systems programming, or a related technical discipline.
  • Expert-level experience with IBM System Automation for z/OS (SA z/OS).
  • Advanced REXX programming experience.
  • Strong hands-on experience with IBM NetView and NetView automation.
  • Experience with automation tables, message automation, command lists, PIPEs, event processing, and policy-based automation.
  • Strong knowledge of IBM z/OS operating environments and mainframe operations.
  • Hands-on experience with CICS, Db2, IMS, JES2/JES3, MQ, and TCP/IP.
  • Experience developing CICS automation, including startup, shutdown, recovery, restart, availability, and health monitoring.
  • Strong understanding of Parallel Sysplex and cross-system automation.
  • Proficiency with JCL, SDSF, TSO/ISPF, and z/OS operational processes.
  • Experience with IBM Workload Scheduler, IWS, TWS, and/or ZWS.
  • Experience with z/OS UNIX System Services (USS/OMVS) and shell scripting.
  • Experience integrating automation with monitoring and event management tools.
  • Strong troubleshooting, analytical, research, prioritization, and problem-solving abilities.
  • Excellent written and verbal communication skills.
  • Demonstrated ability to lead, mentor, and collaborate with technical and business teams.
  • Ability to identify automation opportunities and deliver solutions that reduce manual effort and improve operational reliability.
  • Ability to participate in an on-call rotation as needed.
Preferred / Nice-to-Have Skills
  • Bachelor's degree in Information Technology, Computer Science, or a related field, or an equivalent combination of education and experience.
  • Experience with IBM OMEGAMON, including situation development, alerting, and monitoring customization.
  • Experience with GDPS and disaster recovery automation.
  • Knowledge of SMP/E maintenance and z/OS system programming concepts.
  • Experience with Ansible and automation using REST APIs.
  • Familiarity with mainframe modernization technologies and initiatives.
  • Knowledge of current mainframe automation standards, emerging technologies, and industry best practices.
About Seneca Resources
At Seneca Resources, we are more than just a staffing and consulting firm, we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact.
When you work with Seneca, you're choosing a company that invests in your success, celebrates your achievements, and connects you to meaningful work with leading organizations nationwide. We take the time to understand your goals and match you with roles that align with your skills and career path.
Our consultants and contractors enjoy competitive pay, comprehensive health, dental, and vision coverage, 401(k) retirement plans, and the support of a dedicated team who will advocate for you every step of the way.
Seneca Resources is proud to be an Equal Opportunity Employer, committed to fostering a diverse and inclusive workplace where all qualified individuals are encouraged to apply.

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