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Mainframes Developer Jobs in Washington, DC (NOW HIRING)

Delan Associates, Inc

Mainframe Developer

Mclean, VA

$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 ...

Delan Associates Inc.

Mainframe Developer

Mclean, VA · On-site

$49.75 - $63.75/hr

Deland, Gibson Insurance Associates is seeking an experienced Mainframe Developer with strong expertise in the Banking domain. The role involves designing, developing, maintaining, and supporting ...

System One

Senior Mainframe Engineer

Merrifield, VA · Remote

Senior Mainframe Engineer Location: remote Pay rate: open to W2 and established 1099s Position type: multiyear contract We are currently seeking a Senior Mainframe Programmer/Support Analyst with a ...

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 ...

Stem Xpert

Mainframe developer

Mclean, VA · On-site

$49.50 - $63.75/hr

Mainframe developer Location: Mclean, VA Duration: contract or full time Skillset : Experience in Mainframe (COBOL/JCL/DB2/IMS/CICS) - must have. Must have - Mainframe and IMS Good in analysis ...

System One

Senior Mainframe Developer (COBOL)

Reston, VA · Remote

$83/hr

Senior Mainframe Developer (COBOL) Location: Primarily Remote Onsite Expectations: Monthly travel to Reston, VA for PI Planning Compensation: $83/HR Employment Type: W2 only About the Role We're ...

A.C. Coy

z/OS Mainframe Developer (Remote)

Alexandria, VA · Remote

$52.50 - $67.50/hr

Familiarity with DevOps practices on mainframes, including tools like Jenkins and Git. * Strong written and verbal communication skills (ability to translate between business and technical concepts)

A.C. Coy

z/OS Mainframe Developer (Remote)

Alexandria, VA · On-site +1

$52.50 - $67.50/hr

Familiarity with DevOps practices on mainframes, including tools like Jenkins and Git. * Strong written and verbal communication skills (ability to translate between business and technical concepts)

A.C. Coy

z/OS Mainframe Developer (Remote)

Alexandria, VA · Remote

$52.50 - $67.50/hr

Familiarity with DevOps practices on mainframes, including tools like Jenkins and Git. * Strong written and verbal communication skills (ability to translate between business and technical concepts)

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All JobsMainframes Developer JobsMainframes Developer Jobs in Washington, DC

Mainframes Developer information

See Washington, DC salary details

$54.4K

$126.7K

$188K

How much do mainframes developer jobs pay per year?

As of Aug 5, 2026, the average yearly pay for mainframes developer in Washington, DC is $126,675.00, according to ZipRecruiter salary data. Most workers in this role earn between $101,900.00 and $147,200.00 per year, depending on experience, location, and employer.

What does a Mainframes Developer do?

A Mainframes Developer designs, codes, tests, and maintains applications running on mainframe systems, primarily using languages like COBOL, PL/I, or Assembler. They ensure the stability, security, and efficiency of legacy systems, often working with tools such as JCL and DB2, and may collaborate with system administrators and analysts to support business operations.

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 continued use of mainframe technology for critical applications. However, the number of new positions is gradually decreasing as organizations modernize their IT infrastructure.

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.

What are popular job titles related to Mainframes Developer jobs in Washington, DC? For Mainframes Developer jobs in Washington, DC, the most frequently searched job titles are:
What job categories do people searching Mainframes Developer jobs in Washington, DC look for? The top searched job categories for Mainframes Developer jobs in Washington, DC are:
Mainframes Developer jobs near you
Infographic showing various Mainframes Developer job openings in Washington, DC as of July 2026, with employment types broken down into 46% Full Time, and 54% Contract. Highlights an 85% In-person, 2% Hybrid, and 13% Remote job distribution, with an average salary of $126,675 per year, or $60.9 per hour.

Mainframe Developer

Delan Associates, Inc

Mclean, VA

$49.50 - $63.75/hr

Contractor

Re-posted 4 days ago

Job description

Position: 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 candidates must be available to attend an in-person interview.

Job Summary

We are seeking an experienced Mainframe Developer with strong expertise in the Banking domain to design, develop, maintain, and support mission-critical mainframe applications. The ideal candidate should have hands-on experience with COBOL, JCL, DB2, CICS, VSAM, and IBM mainframe technologies, along with a solid understanding of banking processes such as deposits, loans, payments, cards, or core banking.

Key Responsibilities

Design, develop, test, and maintain IBM Mainframe applications

Analyze business and functional requirements and convert them into technical solutions

Develop and enhance applications using COBOL, JCL, CICS, DB2, and VSAM

Create and modify JCLs for batch processing and job scheduling

Perform code reviews, unit testing, integration testing, and production support

Troubleshoot production issues and perform root cause analysis

Optimize application performance and improve batch processing efficiency

Work with business analysts, QA teams, and stakeholders throughout the SDLC

Participate in system upgrades, migrations, and application modernization initiatives

Maintain technical documentation and follow development standards

Required Skills

Mainframe Technologies

COBOL

JCL (Job Control Language)

CICS

DB2

VSAM

IMS (preferred)

TSO/ISPF

IBM z/OS

File-AID

Endevor, Changeman, or ISPW

SDSF

SPUFI

Database

DB2

SQL

Version Control

Endevor

Changeman

Git (preferred)

Scheduling Tools

CA-7

Control-M

OPC/TWS (preferred)

Employment Type: CONTRACTOR

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