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Mainframe Jobs in Baltimore, MD (NOW HIRING)

Peraton

Senior Software Test 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 ...

System One

Database SME

Greenbelt, MD · Remote

Experience with methodologies for Java/J2EE, Oracle DB, IBM DB2, SQL, Windows, IBM z/OS mainframe, COBOL, JCL, disaster recovery strategies, and system architecture * 6+ years of experience in highly ...

System One

Database SME

Greenbelt, MD · Remote

Experience with methodologies for Java/J2EE, Oracle DB, IBM DB2, SQL, Windows, IBM z/OS mainframe, COBOL, JCL, disaster recovery strategies, and system architecture * 6+ years of experience in highly ...

System One

Database SME

Greenbelt, MD · Remote

Experience with methodologies for Java/J2EE, Oracle DB, IBM DB2, SQL, Windows, IBM z/OS mainframe, COBOL, JCL, disaster recovery strategies, and system architecture * 6+ years of experience in highly ...

Metadimensions, Inc.

Ab-Initio Developer

Woodlawn, MD · On-site

Maintenance of UNIX shell scripting for creating project directories on the UNIX System Services side of Mainframe. Guidance for best practices with regard to development of Ab Initio graphs. Peer ...

Metadimensions

Ab-Initio Developer

Woodlawn, MD · On-site

Maintenance of UNIX shell scripting for creating project directories on the UNIX System Services side of Mainframe. * Guidance for best practices with regard to development of Ab Initio graphs.

System One

Database SME

Greenbelt, MD · Remote

Experience with methodologies for Java/J2EE, Oracle DB, IBM DB2, SQL, Windows, IBM z/OS mainframe, COBOL, JCL, disaster recovery strategies, and system architecture * 6+ years of experience in highly ...

Tata Consultancy Services

Sr. Engineer

Owings Mills, MD · On-site

$99K - $136K/yr

... mainframe job Scheduler. • Troubleshoot and resolve application failures, batch job issues, Informatica ETL workflows and data processing errors across distributed, cloud, and mainframe systems ...

Peraton

Senior Test Automation Engineer

Lanham, MD

$80K - $128K/yr

Design, develop, and maintain automated test frameworks and scripts for mainframe and web applications * Ensure automated tests are reliable, efficient, and integrated into CI/CD pipelines * Identify ...

Peraton

Senior Test Automation Engineer

Lanham, MD

$80K - $128K/yr

Design, develop, and maintain automated test frameworks and scripts for mainframe and web applications * Ensure automated tests are reliable, efficient, and integrated into CI/CD pipelines * Identify ...

Peraton

Senior Test Automation Engineer

Lanham, MD · On-site

$80K - $128K/yr

Design, develop, and maintain automated test frameworks and scripts for mainframe and web applications * Ensure automated tests are reliable, efficient, and integrated into CI/CD pipelines * Identify ...

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All JobsMainframe JobsMainframe Jobs in Baltimore, MD

Mainframe information

See Baltimore, MD salary details

$10

$53

$71

How much do mainframe jobs pay per hour?

As of Aug 18, 2026, the average hourly pay for mainframe in Baltimore, MD is $53.04, according to ZipRecruiter salary data. Most workers in this role earn between $46.83 and $60.19 per hour, depending on experience, location, and employer.

What is a mainframe?

Mainframes are powerful computers used mainly by large organizations for critical applications, bulk data processing, large-scale transaction processing, and enterprise resource planning. They are known for their reliability, scalability, and security, making them essential for industries like banking, healthcare, and government. Mainframes can handle thousands of users and transactions simultaneously, supporting the core operations of many businesses.

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

To excel as a Mainframe Developer, a strong background in COBOL, JCL, mainframe operating systems (like z/OS), and database management is essential, often supported by a degree in computer science or a related field. Familiarity with tools such as IBM DB2, CICS, VSAM, and mainframe version control systems is typically required, and certifications like IBM Certified System Programmer can be advantageous. Analytical thinking, problem-solving abilities, and effective communication are important soft skills for identifying issues and collaborating with cross-functional teams. These skills ensure reliable maintenance, development, and modernization of mission-critical legacy systems that support large-scale business operations.

What are some typical challenges faced by mainframe professionals when integrating legacy systems with modern technologies?

Mainframe professionals often encounter challenges when integrating legacy systems with newer technologies, such as ensuring data compatibility, managing security protocols, and minimizing downtime during migration. These tasks require a deep understanding of both the existing mainframe architecture and the modern platforms being introduced. Collaboration with cross-functional teams—including application developers, security specialists, and project managers—is essential to ensure seamless integration and to address potential issues proactively. Staying updated on the latest integration tools and best practices also helps in overcoming these challenges efficiently.

What is the difference between Mainframe vs Mainframe Developer?

AspectMainframeMainframe Developer
Primary RoleMaintains and manages mainframe hardware and systemsDesigns, develops, and tests mainframe applications
Skills & CertificationsKnowledge of mainframe hardware, OS, and basic scriptingProficiency in COBOL, JCL, and mainframe programming languages
Work EnvironmentData centers, enterprise IT departmentsDevelopment teams within mainframe environments
Industry UsageUsed by organizations with legacy systemsDevelops and maintains those legacy systems

While Mainframe professionals focus on maintaining the hardware and system infrastructure, Mainframe Developers specialize in creating and updating mainframe applications. Both roles require knowledge of mainframe environments, but their responsibilities differ significantly within the same industry.

Is mainframe a good career option?

Mainframe careers involve working with large-scale computer systems used by many organizations for critical applications. The role typically requires knowledge of programming languages like COBOL, skills in system maintenance, and certifications such as IBM Certified System Programmer. It offers stable employment opportunities and competitive salaries due to the specialized skill set involved.
More about Mainframe jobs

What are the most commonly searched types of Mainframe jobs in Baltimore, MD?

The most popular types of Mainframe jobs in Baltimore, MD are:

What are popular job titles related to Mainframe jobs in Baltimore, MD?

For Mainframe jobs in Baltimore, MD, the most frequently searched job titles are:

What job categories do people searching Mainframe jobs in Baltimore, MD look for?

The top searched job categories for Mainframe jobs in Baltimore, MD are:

What cities near Baltimore, MD are hiring for Mainframe jobs?

Cities near Baltimore, MD with the most Mainframe job openings:

Mainframe jobs near you
Infographic showing various Mainframe job openings in Baltimore, MD as of August 2026, with employment types broken down into 50% Full Time, 2% Temporary, and 48% Contract. Highlights an 86% In-person, and 14% Remote job distribution, with an average salary of $110,320 per year, or $53 per hour.

Senior Software Test Engineer

Peraton

Lanham, MD • On-site

$80K - $128K/yr

Full-time

Posted 29 days ago

Peraton rating

8.3

Company rating: 8.3 out of 10

Based on 56 frontline employees who took The Breakroom Quiz

51st of 224 rated it services

Job description

Responsibilities
Peraton is seeking a Senior Software Test Engineer to join our team of qualified, diverse individuals. The ideal candidate is a senior testing professional who thrives in dynamic environments, provides leadership across Agile, Waterfall, and Hybrid methodologies, and ensures testing excellence through proactive guidance and cross-team collaboration.
This position supports the IRS Enterprise System Testing (EST) program, which provides comprehensive testing and quality assurance services to ensure mission critical IRS applications are secure, reliable, and ready for deployment.
This position will be in Lanham, Maryland.
Day to Day Roles and Responsibilities:
  • 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 projects.
  • Use test automation tools to execute test scripts that validate functional, technical, and performance requirements.
  • Use Government or Contractor-developed documentation to construct test cases with predetermined results and test data to verify program functionality and/or interfaces through assigned systems.
  • Review output to determine whether the test results fulfill the established requirements, and if necessary, notify the responsible programmers, both verbally and in writing, of errors, omissions, and inconsistencies in the programs and/or documentation.
  • Coordinate test activities with project stakeholders.
  • Coordinate work assignments to ensure timely and accurate completion of testing.
  • Train other contractors or government personnel in use of automated testing tools.
  • Lead and oversee testing activities with initiative and accountability, applying deep expertise while guiding others and rapidly adapting to new systems and domains.

Qualifications
Basic Qualifications:
  • Bachelors degree and 8 years of experience or a Masters degree and 6 years of experience or an Associates degree and 10 years of experience or a High School diploma/equivalent and 12 years of experience
  • Must be a US Citizen or US Permanent Resident (Green card holder- must have 3 or more US residency)
  • Must be able to obtain and maintain an MBI clearance.
  • Demonstrated mastery in software testing, bringing deep expertise and advanced problem-solving capabilities.
  • Experience providing strategic guidance on testing practices across Agile, Waterfall, and Hybrid delivery models, ensuring alignment and quality across diverse project environments.
  • Experience leading and assisting other Test Engineers.
  • Must have knowledge and experience working with and supporting the development of an overall test Plan and tailored test plans for each release.
  • Must have experience preparing comprehensive reports on testing progress/issues and remedial action.
  • Hands-on experience with Jira and Xray, familiarity with Atlassian products, version control and collaborative software such as GitHub
  • Experience using test automation tools such as:
    • Selenium
    • UiPath
    • QTP
    • HP-UFT
    • Rational Functional Teste

Preferred Qualifications:
  • Current active IRS MBI Clearance strongly preferred
  • Experience working with the federal government
  • 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 automation tools, including low code/code free automated testing tools
  • Exposure to wide automation concepts, framework & best practices from industry in automating mainframe and web applications
  • Demonstrated experience in designing & implementing customized test automation frameworks as needed
  • Experience with the following skills will be considered a significant plus:
    • Hands on experience with technology standards such as: Java, Service Oriented Architecture/Web Services, SQL, XML, Agile Testing Methodology and the ability to proactively respond to emerging technology trends
    • Utilization of Test Tools such as: Jmeter, Junit, Parasoft - LoadTest, Selenium Automated Testing, SOAPUI (free version), INFOConnect, Pegasus, UiPath
    • Deep understanding of: Databricks platform, Medallion architecture (Bronze/Silver/Gold) and PySpark dataframes
    • Familiarity with Accessibility Tools such as: Freedom Scientific JAWS; ZoomText; Dragon Naturally Speaking

Peraton Overview
Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can't be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we're keeping people around the world safe and secure.
Target Salary Range
$80,000 - $128,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual's experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.
EEO
EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.

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About Peraton

Sourced by ZipRecruiter

At Peraton, we re at the forefront of delivering the next big thing every day. We re the partner of choice to help solve some of the world s most daunting challenges, delivering bold, new solutions to keep people around the world safer and more secure.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Herndon, VA, US

Year founded

2017

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