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Mainframes Developer Jobs in Maryland (NOW HIRING)

TekWissen

DB2 Consultant

Bethesda, MD · On-site

... engineering, and systems integration. www.tekwissen.com Should be able to Designs, develops and supports application solutions with focus on mainframe DB2 applications including ability to query DB2 ...

TecTammina

Sr. WebFOCUS developer

Baltimore, MD · On-site

My Client is in need of a WebFOCUS developer with Version 8.x and Version 7.x experience The ... Knowledge of both client/server and mainframe-based systems. Strong background in coding and ...

HRUCKUS

z/OS Systems Programmer

Annapolis, MD · On-site

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.

Metadimensions

JAVA Web Services

Woodlawn, MD · On-site

* This position required development support for redesigning the mainframe applications to web ... Network programming; HTTP and HTTPS. * Systems analysis and design. * Excellent written and verbal ...

Peraton

Senior Software Automation Engineer

Lanham, MD · On-site

$110K - $143K/yr

Responsibilities Peraton is seeking a Senior Software Test Engineer to join our team of qualified ... Conduct functional and/or integration testing of multiple programs in an IBM mainframe, client ...

Peraton

Senior Software Automation Engineer

Lanham, MD · On-site

$110K - $143K/yr

Responsibilities Peraton is seeking a Senior Software Test Engineer to join our team of qualified ... Conduct functional and/or integration testing of multiple programs in an IBM mainframe, client ...

Peraton

Senior Software Automation Engineer

Lanham, MD · On-site

$80K - $128K/yr

Responsibilities Peraton is seeking a Senior Software Test Engineer to join our team of qualified ... Conduct functional and/or integration testing of multiple programs in an IBM mainframe, client ...

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Mainframes Developer information

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 Maryland?

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

What job categories do people searching Mainframes Developer jobs in Maryland look for?

The top searched job categories for Mainframes Developer jobs in Maryland are:

Mainframes Developer jobs near you
Infographic showing various Mainframes Developer job openings in Maryland as of August 2026, with employment types broken down into 81% Full Time, 6% Part Time, and 13% Contract. Highlights an 79% Physical, 6% Hybrid, and 15% Remote job distribution.

IBM Mainframe Test Scheduler/Execution with IRS MBI and IRS Experience

Bowie, MD • On-site

MATRIX SYSTEMS & TECHNOLOGIES INC
11 - 50 employees
Learn more about MATRIX SYSTEMS & TECHNOLOGIES INCexternal

$60K - $80K/yr

Full-time

Re-posted 2 days ago

Job description

***Must have current MBI Clearance***
9 years of manual and automation testing experience with a Bachelor’s degree; Masters or PhD may be considered in addition to just years of experience
Roles and Responsibilities: · Conduct functional and/or integration testing of multiple programs in an IBM mainframe or client/server environment. · Use relevant 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 or not 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. · Provide inputs on the required testing level of effort for Unified Work Requests. 
Minimum Experience:

9 years experience  IBM Mainframe Test Engineering
3 years of developing and writing SQL scripts
Experience with Any Batch scheduler (Control M)
Experience with IBM z/OS Mainframe
Experience with  BMS
Experience extracting Member/Subscriber data from the legacy database
Experience with creating and modifying JCL
Extensive experience with ISPF
Experience with Schema’s
Worked with SME’s, SA’s, DBA’s and CICS SA’s to identify and resolve issues
Exposure to IBM Rational Tools: ClearQuest, and JAZZ/Rational Team Concert and Rational Developer z
Preferred Experience with the following IRS Projects:

MeF (Modernized e-File)
ITPE (Individual Tax Processing Engine)
RRP (Return Review Program), IDOCS (Individual Document Specific Programs),
BDOC (Business Document Specific Programs)
IMF (Individual Master File)
BMF (Business Master File)
CADE2 (Customer Account Data Engine 2)
Preferred Skills:

Preferred Qualifications: 
Test automation experience (for example Cucumber, Selenium Webdriver, UFT, etc)
Experience with the following skills will be considered a significant plus in considering prospective candidates: · IBM Mainframe Unisys Mainframe DB2 · Informatica Business Objects · Knowledge of current IRS tax administration software applications is a significant plus. · Experience with TOAD · Rational CLM tools (Quality Manager, Team Concert, Doors Next Generation) · Microsoft (MS) Office Excel, MS Word, MS Project, MS Visio · CTRL-M (server) · Adobe Pro · SecureCRT, SecureFx · IBM Mainframe (TSO and JCL) · Java Batch (SpringBatch) · Experience with XML and JSON and previous testing experience to include test cases, test data and the software testing life cycle · Agile, Iterative and Rapid Development methodologies · Performance testing, Cybersecurity testing, and Section 508 compliance testing · Experience with IRS tax administration systems · Working knowledge of IBM REXX language · IBM File Manager skills with maps/templates on ancient data formats/CRL’s · Experience with IBM File comparison utilities · Knowledge of standard IBM Utilities and Rational CLM (i.e. compare utilities, Rational Quality Manager (RQM), Rational Team Concert (RTC), etc.) · Software testing or development experience in an IBM mainframe batch processing environment · Working knowledge of updating/executing IBM JCL · Knowledge of industry standard Performance tools · Knowledge of Individual Tax Processing Engine (ITPE) processing · Proficiency with Greenplum Database, PgAdmin tool, and SQL ·