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Mainframe Developer Jobs in Washington (NOW HIRING)

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

$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 ...

Stem Xpert

Mainframe developer

Mclean, VA

$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 ...

Atria Group LLC

Mainframe Developer

Chantilly, VA

$50.25 - $64.50/hr

... engineers from their employers. We represent only high caliber technical professionals who have committed to making a change required by career. Skills: Hogan, COBOL, DB2, JCL, VSAM, Mainframe ...

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 · On-site +1

$52.50 - $67.50/hr

Tier One Technologies has an immediate need for a z/OS Mainframe Developer to support our US Government client. * This is going to be a 100% remote position. * SELECTED CANDIDATES WITHOUT REQUIRED ...

A.C. Coy

z/OS Mainframe Developer (Remote)

Alexandria, VA · Remote

$52.50 - $67.50/hr

Tier One Technologies has an immediate need for a z/OS Mainframe Developer to support our US Government client. * This is going to be a 100% remote position. * SELECTED CANDIDATES WITHOUT REQUIRED ...

A.C. Coy

z/OS Mainframe Developer (Remote)

Alexandria, VA · Remote

$52.50 - $67.50/hr

* Tier One Technologies has an immediate need for a z/OS Mainframe Developer to support our US Government client. * This is going to be a 100% remote position. * SELECTED CANDIDATES WITHOUT REQUIRED ...

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 ...

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 ...

PTR Global

Technical SME (Mainframe z/OS)

Mclean, VA · On-site

$70 - $80/hr

Mainframe Infrastructure Engineer Location: Mclean, VA Remote Duration: 12+ Months Contract Job id - 178319 Must Have Qualifications : * Must have 10+ years as a Mainframe Programmer with hands on ...

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 ...

System One

.NET Mainframe Developer

Vienna, VA · Remote

$50.25 - $64.50/hr

Job Title: .NET Developer Location: Remote Type: Contract Contractor Work Model: Remote Responsibilities * Design, develop, and enhance complex software applications supporting mission-critical, time ...

System One

.NET Mainframe Developer

Vienna, VA · Remote

$50.25 - $64.50/hr

Job Title: .NET Developer Location: Remote Type: Contract Contractor Work Model: Remote Responsibilities * Design, develop, and enhance complex software applications supporting mission-critical, time ...

System One

.NET Mainframe Developer

Vienna, VA · Remote

$50.25 - $64.50/hr

Job Title: .NET Developer Location: Remote Type: Contract Contractor Work Model: Remote Responsibilities * Design, develop, and enhance complex software applications supporting mission-critical, time ...

System One Holdings, LLC

.NET Mainframe Developer

Vienna, VA · On-site

$49.25 - $63.25/hr

Job Title: .NET Developer Location: Remote Type: Contract Contractor Work Model: Remote Responsibilities * Design, develop, and enhance complex software applications supporting mission-critical, time ...

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All JobsMainframe Developer JobsMainframe Developer Jobs in Washington

Mainframe Developer information

See Washington salary details

$11

$60

$81

How much do mainframe developer jobs pay per hour?

As of Jul 22, 2026, the average hourly pay for mainframe developer in Washington is $60.46, according to ZipRecruiter salary data. Most workers in this role earn between $53.37 and $68.61 per hour, depending on experience, location, and employer.

What is the difference between Mainframe Developer vs Mainframe Analyst?

AspectMainframe DeveloperMainframe Analyst
Primary RoleDesigning, coding, and testing mainframe applicationsAnalyzing and maintaining existing mainframe systems
Skills & CertificationsCOBOL, JCL, DB2, certifications like IBM Certified DeveloperCOBOL, JCL, system analysis, troubleshooting skills
Work EnvironmentDevelopment teams, coding in mainframe environmentsSupport teams, system analysis, user support
Industry UsageFinancial services, insurance, government agenciesFinancial institutions, healthcare, government agencies

While Mainframe Developers focus on creating and implementing mainframe applications, Mainframe Analysts primarily analyze, troubleshoot, and maintain existing systems. Both roles require similar technical skills and often work within the same industries, but their core responsibilities differ in development versus support and analysis.

What are some common challenges Mainframe Developers face when integrating legacy systems with modern applications?

Mainframe Developers often encounter challenges such as ensuring compatibility between legacy systems and newer technologies, managing data migration without disrupting business operations, and maintaining the security of sensitive data. Effective communication with cross-functional teams, such as application developers and infrastructure engineers, is essential to address these challenges. Staying updated on both mainframe and modern programming practices helps ease integration and ensures long-term system reliability.

What are Mainframe Developers?

Mainframe Developers are specialized software engineers who design, develop, maintain, and troubleshoot applications on mainframe computer systems, such as IBM's z/OS. They typically work with languages like COBOL, JCL, and CICS, and are responsible for ensuring the performance, security, and reliability of mission-critical business applications. Mainframe Developers are commonly employed in industries like banking, insurance, and government, where large-scale, high-volume transaction processing is essential.

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

To thrive as a Mainframe Developer, you need expertise in programming languages such as COBOL, JCL, and SQL, along with a strong understanding of mainframe operating systems and batch processing concepts. Familiarity with tools like IBM z/OS, DB2, CICS, and version control systems is typically required, and certifications from IBM or related organizations can be beneficial. Strong problem-solving abilities, attention to detail, and effective communication skills help Mainframe Developers excel in troubleshooting and collaborating with cross-functional teams. These skills are crucial for maintaining, optimizing, and modernizing legacy systems that are vital to many large organizations’ operations.
What are the most commonly searched types of Mainframe Developer jobs in Washington? The most popular types of Mainframe Developer jobs in Washington are:
What are popular job titles related to Mainframe Developer jobs in Washington? For Mainframe Developer jobs in Washington, the most frequently searched job titles are:
What job categories do people searching Mainframe Developer jobs in Washington look for? The top searched job categories for Mainframe Developer jobs in Washington are:
What cities in Washington are hiring for Mainframe Developer jobs? Cities in Washington with the most Mainframe Developer job openings:
What are popular job titles related to Mainframe Developer jobs in WA? For Mainframe Developer jobs in WA, the most frequently searched job titles are:
Mainframe Developer jobs near you
Infographic showing various Mainframe Developer job openings in Washington as of July 2026, with employment types broken down into 82% Full Time, 5% Part Time, 1% Temporary, and 12% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution, with an average salary of $125,748 per year, or $60.5 per hour.
Mainframe Developer

Mainframe Developer

Delan Associates, Inc.

Mclean, VA • On-site

$49.50 - $63.75/hr

Contractor

Posted 21 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)

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