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Mainframe Software Developer Jobs in Ellicott City, MD

JS Consulting

Sr. Mainframe Developer

Woodlawn, MD · On-site

$51 - $65.50/hr

Job Title- Sr. Mainframe Developer Project Location - Woodlawn, MD (5 days per week onsite ... Develop JCL and software code using customer defined standards and software engineering best ...

Stem Xpert

Mainframe developer

Mclean, VA · On-site

$49.50 - $63.75/hr

... software engineering and systems integration. Our tightly integrated offerings are tailored to each ... Mainframe developer Location: Mclean, VA Duration: contract or full time Skillset : Experience in ...

Delan Associates, Inc

Mainframe Developer

Mclean, VA · On-site

$49.50 - $63.75/hr

Mainframe Developer (Banking Domain) Location: McLean, VA (Onsite, 5 days/week) Note: This position is open to local candidates in McLean, VA only. Face-to-face (F2F) interviews are mandatory, so ...

Delan Associates, Inc.

Mainframe Developer

Mclean, VA · On-site

$49.50 - $63.75/hr

Mainframe Developer (Banking Domain) Location: McLean, VA (Onsite, 5 days/week) Note: This position is open to local candidates in McLean, VA only. Face-to-face (F2F) interviews are mandatory, so ...

Delan Associates, Inc

Mainframe Developer

Mclean, VA · On-site

$49.50 - $63.75/hr

Mainframe Developer (Banking Domain) Location: McLean, VA (Onsite, 5 days/week) Note: This position is open to local candidates in McLean, VA only. Face-to-face (F2F) interviews are mandatory, so ...

Noblesoft Technologies

Mainframe Engineering

Mclean, VA · On-site

$40 - $45/hr

Mainframe Engineering Location : McLean, VA Required Knowledge * z/OS architectures and internals. * zSecure tool and Carla language (customization experience is a plus). * Mainframe security related ...

ConfigUSA

Mainframe Engineer

Mclean, VA · On-site

$49.50 - $63.75/hr

The Mainframe engineers responsibilities include: Technical Lead for Mainframe Platform (z/OS| Dell Storage| IMS| DB2| RACF| CA JobTrac) to govern operations| changes and sustainability upgrade ...

Creative G C

Mainframe z/OS System Programmer

Columbia, MD · Remote

$56.25 - $71.75/hr

Experienced with SMP/E and Mainframe Software Maintenance with performance, problem determination ... systems programmers in the design and management of ACF2 / RACF / TSS for all regions and LPARs.

Anivas Tech LLC

Mainframe SRE

Kettering, MD · On-site

$48.50 - $62.50/hr

Collaborate with DevOps and development teams to extend CI/CD practices into mainframe pipelines * Document standard operating procedures, runbooks, and post-incident reviews * Participate in on-call ...

Morgan Stanley

Mainframe CICS Systems Engineer

Baltimore, MD · On-site

$48.75 - $62.50/hr

The EZ engineers work with the latest hardware and software technologies. The IBM z platform and the mainframe disk and tape technologies are frequently refreshed across our datacenters. The ...

New

Morgan Stanley

Mainframe CICS Systems Engineer

Mclean, VA · On-site

$49.50 - $63.75/hr

The EZ engineers work with the latest hardware and software technologies. The IBM z platform and the mainframe disk and tape technologies are frequently refreshed across our datacenters. The ...

New

Omm IT Solutions

Mainframe Computer Operator

Washington, DC · On-site

$55.25 - $71/hr

Load and unload paper, toner, and developer; ensure proper supply management. \n * Remove, organize ... Familiarity with mainframe console operations. \n * Ability to operate and maintain high\-speed ...

Pace solutions inc

Mainframe - HOGAN

Washington, DC · On-site

$55.50 - $71.25/hr

Mainframe - HOGAN Tech Lead Washington DC Good programming experience in COBOL, JCL, VSAM At least 3 years' experience on Hogan Core Banking Platform Design, code, new programs for online and batch ...

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 ...

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All JobsMainframe Software Developer JobsMainframe Software Developer Jobs in Ellicott City, MD

Mainframe Software Developer information

See Ellicott City, MD salary details

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How much do mainframe software developer jobs pay per hour?

As of Sep 1, 2026, the average hourly pay for mainframe software developer in Ellicott City, MD is $53.18, according to ZipRecruiter salary data. Most workers in this role earn between $46.92 and $60.34 per hour, depending on experience, location, and employer.

What is a mainframe software developer?

A Mainframe Software Developer is an IT professional who designs, develops, tests, and maintains software applications that run on mainframe computers. These developers typically work with programming languages such as COBOL, JCL, and Assembler, and are responsible for ensuring the performance and reliability of critical business systems used by large organizations. Mainframe Software Developers often collaborate with business analysts, project managers, and other IT staff to support and enhance legacy systems, as well as to integrate new technologies with existing mainframe infrastructure.

What are the key skills and qualifications needed to thrive as a mainframe software developer?

To thrive as a Mainframe Software Developer, you need expertise in COBOL, JCL, mainframe operating systems (such as z/OS), and a background in computer science or related fields. Familiarity with mainframe tools like IBM CICS, DB2, and version control systems, along with certifications such as IBM Certified System Programmer, is highly valued. Strong analytical thinking, problem-solving abilities, and effective communication set standout professionals apart in this field. These skills ensure the maintenance of critical legacy systems, support for business operations, and seamless integration with modern technologies.

How does a mainframe software developer typically collaborate with cross-functional teams in a modern IT environment?

Mainframe Software Developers frequently work with cross-functional teams that include business analysts, system architects, QA testers, and DevOps engineers. Collaboration often involves participating in daily stand-ups, code reviews, and joint problem-solving sessions to ensure seamless integration of mainframe applications with newer technologies. Developers also play a key role in translating business requirements into robust mainframe solutions, and may be involved in mentoring junior developers or coordinating with offshore teams. This collaborative environment helps ensure that legacy systems remain aligned with evolving business needs and IT strategies.

What is the difference between Mainframe Software Developer vs Mainframe Systems Analyst?

AspectMainframe Software DeveloperMainframe Systems Analyst
Required CredentialsBachelor's in Computer Science or related field, certifications like IBM Certified SpecialistBachelor's in IT, Computer Science, or related, often with certifications in mainframe systems
Work EnvironmentDevelops and codes mainframe applications, often in COBOL, PL/I, or AssemblerAnalyzes system requirements, designs solutions, and coordinates between users and developers
Employer & Industry UsageFinancial institutions, government agencies, large corporations using mainframe systemsSame industries, focusing on system analysis, requirements gathering, and process improvements

While Mainframe Software Developers focus on coding and building mainframe applications, Mainframe Systems Analysts analyze existing systems and gather requirements to improve or implement new solutions. Both roles are essential in mainframe environments and often collaborate closely.

Is a mainframe software developer a good career?

A mainframe software developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical operations. 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 is gradually evolving as organizations adopt newer technologies.

Is mainframe software developer still in demand?

Mainframe software developers are still in demand in industries such as finance, government, and healthcare that rely on legacy systems. These roles often require skills in COBOL, JCL, and mainframe environments, with ongoing opportunities for maintenance, modernization, and integration projects.

What job categories do people searching Mainframe Software Developer jobs in Ellicott City, MD look for?

The top searched job categories for Mainframe Software Developer jobs in Ellicott City, MD are:

What cities near Ellicott City, MD are hiring for Mainframe Software Developer jobs?

Cities near Ellicott City, MD with the most Mainframe Software Developer job openings:

Mainframe Software Developer jobs near you
Infographic showing various Mainframe Software Developer job openings in Ellicott City, MD as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 13% Part Time, and 4% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $110,621 per year, or $53.2 per hour.

Sr. Mainframe Developer

Woodlawn, MD • On-site

JS Consulting
Custom Software Development Services • 1 - 10 employees
Learn more about JS Consultingexternal

$51 - $65.50/hr

Contractor

Re-posted 17 days ago

Job description

Job Title- Sr. Mainframe Developer

Project Location – Woodlawn, MD (5 days per week onsite)

Duration- 6+ months contract

Skills: Strong experience with IBM z/OS (OS/390/MVS) environment developing and maintaining JCL and COBOL, Dialog Manager, Endevor, z/OS, CLIS, JCL, and DB2 for application software systems.

Position Description:

  • Responsible for conforming to customer standards and requirements and will be involved in creating and maintaining code and database structures such as COBOL, Restructured Extended Executor (REXX), Job Control Language (JCL), CLIST, DB2, as well as numerous mainframe utility tools such as SYNCSORT, File-AID/Related Data XPERT (RDX), etc. Responsible for unit testing and validation against desired outcomes. The resource is expected to function as part of a team, maintain a high level of collaboration with SSA of customers, and must demonstrate excellent communication skills to ensure success.
  • Develop JCL and software code using customer defined standards and software engineering best practices
  • Evaluate impacts of database schema changes on existing software components
  • Investigate and repair application defects related to business logic, middleware, or database (DB2).
  • Design, develop, test, debug, and implement next-generation COBOL programs using software engineering, best practices and latest technologies
  • Create and update JCL for efficient batch processing
  • Evaluate the impact of new operating systems, or versions of COBOL and Endevor on programs.
  • Collaborate with internal teams and external vendors, offering technical advice and influencing key stakeholders to achieve strategic objectives and enhance Leidos business outcomes.
  • Investigate and repair application defects regardless of component: COBOL, business logic, CICS configurations, middleware, or database (PL/SQL and Data Modeling).
  • Brief management, customer, team, or vendors using written or oral skills at appropriate technical level for audience
  • All other duties as assigned or directed.?

Requirements  

  • Bachelor's Degree in Computer Science, Mathematics, Engineering or a related field.
  • Masters or Doctorate degree may substitute for required experience
  • 10+ years of experience with Mainframe.
  • Must be able to obtain and maintain a Public Trust. Contract requirement.

FACTORS TO HELP YOU SHINE (Required Skills)

These skills will help you succeed in this position:

  • Experience developing and maintaining COBOL applications including working with structures, copybooks, and CICS maps
  • Experience developing applications for use on IBM z/OS.
  • Experience debugging COBOL Programs, CLIST, PROC, COBOL error tracing, and using Visual Studio COBOL viewer.
  • Basic experience with CICS programs, including how COBOL programs interact with BMS maps that define to user interface.
  • Experience using Endevor with TADZ for reporting and analysis such as browsing, scanning elements, measuring usage statistics.
  • Working knowledge / experience with ISPF, TSO, JES, and Job Control Language (JCL).
  • Experience developing and modifying JCL for job execution and batch operations
  • Hands-on experience with batch and online processing.
  • Excellent communication and written skills
  • Experience with mainframe-based software configuration management systems such as Endevor.
  • Experience with Control-M or other mainframe-based job scheduling tools.
  • Detail oriented and committed to consistently completing repetitive production-like tasks on-time and error-free.
  • Ability to independently research problems and provide solutions.

HOW TO STAND OUT FROM THE CROWD (Desired Skills)

Showcase your knowledge of modern development through the following experience or skills:

  • Working knowledge of SAS and REXX.
  • Experience with Mainframe Assembler development.
  • Certification such as IBM Mainframe Developer Professional, Interskill - Mainframe Application Programmer - COBOL and IBM Enterprise COBOL for z/OS Programming
  • Solid knowledge of relational databases (PostgreSQL, DB2), and SQL
  • Experience with modern development software, tools, and methodologies.
  • Experience working on Agile projects and understanding Agile terminology.
  • Experience with DevOps and toolset (Git/Bitbucket, Docker, Jenkins, SonarQube)?

Education           

  • Bachelor's Degree with 7+ years of experience.
  • Must be able to obtain and maintain a Public Trust. Contract requirement.

Respectfully,