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Mainframe Tester Jobs (NOW HIRING)

System One

Mainframe Architect

Pittsburgh, PA · On-site

Testing strategies * Deployment roadmaps * Communicate architecture, schedules, and implementation plans * Coordinate across cross-functional teams Must-Have Technical Skills * Mainframe Application ...

System One

Mainframe Architect

Pittsburgh, PA · On-site

Testing strategies * Deployment roadmaps * Communicate architecture, schedules, and implementation plans * Coordinate across cross-functional teams Must-Have Technical Skills * Mainframe Application ...

System One

Mainframe Architect

Pittsburgh, PA · On-site

Testing strategies * Deployment roadmaps * Communicate architecture, schedules, and implementation plans * Coordinate across cross-functional teams Must-Have Technical Skills * Mainframe Application ...

System One

Mainframe Architect

Pittsburgh, PA · On-site

Testing strategies * Deployment roadmaps * Communicate architecture, schedules, and implementation plans * Coordinate across cross-functional teams Must-Have Technical Skills * Mainframe Application ...

Symphony Enterprises

Mainframe Assembler

Wilmington, DE · On-site

$47.50 - $61/hr

The ideal candidate should have strong expertise in design, coding, testing, debugging, and production support of mainframe applications. Must have experience with z/OS , the Software Development ...

Percient Inc.

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61/hr

Design, coding, and testing: Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the ...

Prophecy Technologies

Mainframe Developer

Atlanta, GA · On-site

$47 - $60.50/hr

Perform unit testing, integration testing, and production deployments. * Troubleshoot and resolve ... Mainframe debugging and performance tuning * Production support and incident management * Strong ...

Delan Associates, Inc.

Mainframe Developer

Mclean, VA · On-site

$49.50 - $63.75/hr

Position: Mainframe Developer (Banking Domain) Location: McLean, VA (Onsite, 5 days/week) Note ... unit testing, integration testing, and production support Troubleshoot production issues and ...

Delan Associates, Inc

Mainframe Developer

Mclean, VA

$49.50 - $63.75/hr

Position: Mainframe Developer (Banking Domain) Location: McLean, VA (Onsite, 5 days/week) Note ... unit testing, integration testing, and production support Troubleshoot production issues and ...

Raas Infotek LLC

Mainframe Developer

Cape Coral, FL · On-site

$43.75 - $56.25/hr

Mainframe Developer Job Title: Senior Mainframe Developer Experience: 10+ Years Employment Type ... Perform code reviews, unit testing, and integration testing. * Troubleshoot production issues and ...

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Mainframe Tester information

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How much do mainframe tester jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for mainframe tester in the United States is $43.50, according to ZipRecruiter salary data. Most workers in this role earn between $33.41 and $52.40 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive in the mainframe tester position, and why are they important?

A Mainframe Tester needs strong analytical abilities, proficiency in mainframe environments (such as IBM z/OS), and knowledge of programming languages like COBOL, JCL, and SQL, often supported by a degree in computer science or a related field. Experience with test automation tools (e.g., IBM Rational, CA tools), debugging utilities, and relevant certifications like ISTQB can be highly beneficial. Excellent problem-solving skills, attention to detail, teamwork, and effective communication help testers excel in cross-functional teams. These skills and qualities are crucial for ensuring reliability, compliance, and performance of mission-critical mainframe systems in large organizations.

What are the typical responsibilities and daily tasks of a mainframe tester?

Mainframe Testers are primarily responsible for designing, developing, and executing test cases on mainframe applications to ensure their accuracy and performance. On a daily basis, you might review requirements, create test data, identify defects, and work closely with developers to resolve coding issues. The role often involves collaborating with business analysts and system architects to understand the application's functionality and ensure compliance with business and technical standards. Mainframe Testers frequently use specialized testing tools and may participate in both manual and automated testing cycles. This collaborative and detail-oriented environment helps ensure high-quality and reliable mainframe systems for the organization.

Are mainframe tester jobs in demand?

Mainframe tester jobs remain in demand due to the continued use of legacy mainframe systems in industries like finance and government. These roles require skills in testing mainframe applications, often involving tools like JCL, COBOL, and testing frameworks, and tend to offer stable employment opportunities.

What is a mainframe tester?

A Mainframe Tester is responsible for testing applications running on mainframe systems to ensure their functionality, reliability, and security. They create and execute test cases, validate data processing, and identify defects in mainframe applications. They work with technologies like COBOL, JCL, DB2, and CICS to test batch and online processes. Their role is critical in industries like banking, insurance, and healthcare, where mainframes handle large-scale transaction processing. The tester collaborates with developers and business analysts to ensure the applications meet business requirements.

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 experience in software testing and quality assurance. Familiarity with testing tools like IBM Rational or CA Test Data Manager and obtaining relevant certifications can enhance your prospects. Developing skills in scripting, debugging, and understanding legacy systems is also beneficial.
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Mainframe Tester jobs near you
Infographic showing various Mainframe Tester job openings in the United States as of August 2026, with employment types broken down into 72% Full Time, 20% Part Time, and 8% Contract. Highlights an 57% Physical, 1% Hybrid, and 42% Remote job distribution, with an average salary of $90,490 per year, or $43.5 per hour.

Senior Security Consultant (Mainframe Penetration Tester)

NetSPI LLC

Minneapolis, MN

Full-time

Re-posted 28 days ago

Job description

NetSPI® pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern pentesting. Combining world-class security professionals with AI and automation, NetSPI delivers clarity, speed, and scale across 50+ pentest types, attack surface management, and vulnerability prioritization. The NetSPI platform streamlines workflows and accelerates remediation, enabling our experts to focus on deep dive testing that uncovers vulnerabilities others miss. Trusted by the top 10 U.S. banks and Fortune 500 companies worldwide, NetSPI has been driving security innovation since

NetSPI is on an exciting growth journey as we disrupt and improve the proactive security market. We are looking for individuals with a collaborative, innovative, and customer-first mindset to join our team. Learn more about our award-winning workplace culture and get to know our A-Team at www.netspi.com/careers.

Join the mission as a Senior Security Consultant. We are seeking a skilled and detail-oriented Penetration Tester to conduct thorough security assessments, identify vulnerabilities, and provide expert recommendations to strengthen our clients' security posture. As a Penetration Tester supporting Mainframe testing, you will work closely with clients to deliver clear, actionable reports and contribute to the development of security best practices.

Responsibilities:

  • Perform network, app, platform, CICS, IMS, Db2 and other z/OS-based penetration tests.
  • Create and deliver penetration test reports to clients
  • Collaborate with clients to create remediation strategies that will help improve their security posture
  • Research and develop innovative techniques, tools, and methodologies for penetration testing services
  • Participate in the ongoing development/enhancement of NetSPI services and processes, in addition to thought leadership (via blogs, presentations, white papers, webinars, podcast, vlogs and tweets)
  • Provide pre-sales support by assisting with scoping prospective engagements
  • Act as a resource for internal team members as it relates to in-depth technical questions or best practices
  • Responsible for QA activities in assigned service lines
  • Other duties as assigned

Minimum Requirements:

  • Bachelor’s degree or higher, with a focus on IT, Computer Science, Engineering or Math or equivalent experience
  • 3-5 years of experience in penetration testing, including network, web or thick client application, and operating system testing
  • Experience with offensive toolkits used for network and application penetration testing
  • Strong communication skills, both verbal and written
  • Knowledge of z/OS fundamentals including, but not limited to: TSO, JCL, JES2, USS, Networking and at least one ESM (RACF, ACF2, Top Secret).

Preferred Qualifications:

  • Programming experience in one or more of the following languages: Assembler, C, C++, REXX, Python
  • Experience security or managing z/OS-based systems.
  • Experience with pentesting (PTAS), PTES, OSCP or other offensive security certifications.

We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status or any other characteristic protected by law.