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Mainframe Testing Jobs in Washington (NOW HIRING)

System One Holdings, LLC

Performance Tester

Mclean, VA · On-site

Familiarity with mainframe and web-based performance systems. REQUIREMENTS * Experience with performance testing and system tuning. * Proficiency with LoadRunner or similar performance testing tools.

System One

Performance Tester

Mclean, VA · On-site

Familiarity with mainframe and web-based performance systems. REQUIREMENTS * Experience with performance testing and system tuning. * Proficiency with LoadRunner or similar performance testing tools.

System One

Performance Tester

Mclean, VA · On-site

Familiarity with mainframe and web-based performance systems. REQUIREMENTS * Experience with performance testing and system tuning. * Proficiency with LoadRunner or similar performance testing tools.

System One

Performance Tester

Mclean, VA · On-site

Familiarity with mainframe and web-based performance systems. REQUIREMENTS * Experience with performance testing and system tuning. * Proficiency with LoadRunner or similar performance testing tools.

System One

Performance Tester

Mclean, VA · On-site

Familiarity with mainframe and web-based performance systems. REQUIREMENTS * Experience with performance testing and system tuning. * Proficiency with LoadRunner or similar performance testing tools.

System One

Performance Tester

Mclean, VA · On-site

Familiarity with mainframe and web-based performance systems. REQUIREMENTS * Experience with performance testing and system tuning. * Proficiency with LoadRunner or similar performance testing tools.

Serigor, Inc.

Senior .NET Developer (Onsite)

Columbia, MD · On-site

$53.75 - $70.75/hr

Collaborate with Mainframe SMEs, architects, QA teams, DevOps engineers, and business analysts * Support remediation, integration testing, regression testing, and functional equivalence validation

Peraton

Senior Software Automation Engineer

Lanham, MD

$110K - $143K/yr

Conduct functional and/or integration testing of multiple programs in an IBM mainframe, client/server or cloud environment. * Proactively identify use cases for test automation within supported ...

Peraton

Senior Software Automation Engineer

Lanham, MD · On-site

$110K - $143K/yr

Conduct functional and/or integration testing of multiple programs in an IBM mainframe, client/server or cloud environment. * Proactively identify use cases for test automation within supported ...

Peraton

Senior Software Automation Engineer

Lanham, MD · On-site

$80K - $128K/yr

Conduct functional and/or integration testing of multiple programs in an IBM mainframe, client/server or cloud environment. * Proactively identify use cases for test automation within supported ...

Peraton

Senior Software Test Engineer

Lanham, MD · Hybrid

$110K - $143K/yr

Conduct functional and/or integration testing of multiple programs in an IBM mainframe, client/server or cloud environment. * Proactively identify use cases for test automation within supported ...

Peraton

Senior Software Test Engineer

Lanham, MD · On-site

$110K - $143K/yr

Conduct functional and/or integration testing of multiple programs in an IBM mainframe, client/server or cloud environment. * Proactively identify use cases for test automation within supported ...

Peraton

Senior Software Test Engineer

Lanham, MD · Hybrid

$110K - $143K/yr

Conduct functional and/or integration testing of multiple programs in an IBM mainframe, client/server or cloud environment. * Proactively identify use cases for test automation within supported ...

BCforward

Greenplum Software Tester

Lanham, MD · On-site

Individual will conduct functional and/or integration testing of multiple programs in a client/server and/or IBM mainframe environment. Programs typically support the Internal Revenue Service (IRS ...

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Mainframe Testing information

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How much do mainframe testing jobs pay per hour?

As of Sep 13, 2026, the average hourly pay for mainframe testing in Washington is $60.46, according to ZipRecruiter salary data. Most workers in this role earn between $53.37 and $68.61 per hour, depending on experience, location, and employer.

What is mainframe testing?

A Mainframe Testing job involves validating and verifying applications running on mainframe systems to ensure they function correctly, efficiently, and securely. Testers perform various types of testing, including functional, integration, regression, and performance testing, using tools like JCL, COBOL, DB2, and CICS. They analyze test results, identify defects, and collaborate with developers to resolve issues. Mainframe testers need knowledge of batch processing, databases, and system interactions to ensure seamless operations. The role is critical in industries like banking, insurance, and healthcare, where mainframes handle high-volume transactions.

What are the key skills and qualifications needed to thrive in mainframe testing?

To thrive in Mainframe Testing, you need strong analytical abilities, a solid understanding of mainframe environments and programming languages like COBOL, JCL, and experience with testing methodologies. Familiarity with tools such as IBM Mainframe, CA7/Endevor, and mainframe testing frameworks, as well as ISTQB certification, is highly valuable. Attention to detail, strong problem-solving skills, and effective communication are essential soft skills in this role. These competencies help ensure that complex mainframe systems are thoroughly tested, reliable, and meet business requirements.

What are some common challenges faced by professionals working in mainframe testing?

Professionals in Mainframe Testing often encounter challenges such as understanding legacy code, dealing with limited documentation, and adapting to the evolving integration of mainframe and modern systems. Testers must also effectively validate large volumes of data, ensure compatibility across interconnected applications, and manage tight release deadlines. Collaborating closely with developers, business analysts, and operations teams is essential for clarifying requirements and troubleshooting issues. Successfully overcoming these challenges requires persistence, a willingness to learn, and strong teamwork skills.

How to be a mainframe tester?

To become a mainframe tester, you should have a strong understanding of mainframe environments, including COBOL, JCL, and DB2, along with testing tools like IBM Rational or CA Test Data Manager. Gaining experience in software testing, scripting, and understanding mainframe architecture is essential, often supported by certifications such as IBM Certified Solution Developer. Attention to detail and the ability to work with legacy systems are important in this role.

What are popular job titles related to Mainframe Testing jobs in Washington?

For Mainframe Testing jobs in Washington, the most frequently searched job titles are:

What job categories do people searching Mainframe Testing jobs in Washington look for?

The top searched job categories for Mainframe Testing jobs in Washington are:

Mainframe Testing jobs near you
Infographic showing various Mainframe Testing job openings in Washington as of August 2026, with employment types broken down into 68% Full Time, and 32% Contract. Highlights an 100% In-person job distribution, with an average salary of $125,748 per year, or $60.5 per hour.

Performance Tester

Mclean, VA • On-site

System One Holdings, LLC
Business Consulting Services • 5 - 10K employees
Learn more about System One Holdings, LLCexternal

Contractor

Medical, Dental, Vision, Life, Retirement

Posted 18 days ago

Job description

Job Title: Performance Tester
Location: New Carrolton, MD
Type: Contract-to-Hire
Work Model: Onsite
Security Clearance: IRS MBI is preferred
Contact: Crystaldinnocenti@systemone.com
RESPONSIBILITIES
  • Experience with performance testing and system tuning to ensure applications meet scalability requirements.
  • Experience with LoadRunner for designing, executing, and analyzing performance tests.
  • Skilled in bottleneck analysis and establishing performance baselines.
  • Understanding of Service Level Agreements (SLA'S), Key Performance Indicators (KPIs), and non-functional requirements; translating them into testing objectives.
  • Experience producing forecasts and workload projections based on trend analysis and historical data.
  • Knowledge of cloud performance testing (AWS, Azure).
  • Strong skills in analyzing test results and findings to provide actionable recommendations.
  • Experience with capacity planning frameworks and building performance models to anticipate future growth and demand.
  • Familiarity with monitoring tools for performance testing, such as AppDynamics or Splunk, to identify and analyze bottlenecks.
  • Familiarity with mainframe and web-based performance systems.

REQUIREMENTS
  • Experience with performance testing and system tuning.
  • Proficiency with LoadRunner or similar performance testing tools.
  • Ability to analyze performance data and provide insights.
  • Knowledge of cloud performance testing environments such as AWS and Azure.
  • Strong analytical skills to evaluate test results and performance baselines.
  • Experience with capacity planning and performance modeling.
  • Familiarity with monitoring tools like AppDynamics or Splunk.
  • Understanding of SLAs, KPIs, and non-functional requirements.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
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Ref: #851-Rockville-S1
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About System One

Sourced by ZipRecruiter

System One helps employers get work done more efficiently and economically without compromising quality. Over our 35+ year history, we've helped connect thousands of talented people with innovative companies. The excitement of a perfect fit motivates us every single day.

Industry

Business consulting services and recruiting and staffing services

Company size

5,001 - 10,000 Employees

Headquarters location

Pittsburgh, PA, US

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