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Senior Mainframe Programmer Jobs (NOW HIRING)

Primesoft Consulting Services Inc

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Senior Mainframe Developer

Los Angeles, CA · On-site

PLEASE DO NOT SUBMIT THIRD PARTY (C2C) RESUMES AND WASTE OUR TIME AND YOUR TIME We are looking for an experienced Senior Mainframe Developer with strong expertise in COBOL, JCL, DB2, and CICS to ...

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Palnar

Sr. Mainframe Developer

Jersey City, NJ · On-site

$53.75 - $69/hr

Job Role: Sr. Mainframe Developer Location: Jersey City, NJ Duration Long Term * Minimum of 10 years' experience with COBOL, DB2, Command-Level CICS, JCL, Batch and TSO/ISPF. * Similar experience ...

Systemtec

Senior Mainframe EDI Developer

Columbia, SC

$40 - $51.50/hr

Senior Mainframe EDI Developer SYSTEMTEC is seeking a Senior Mainframe EDI Developer for an onsite opportunity in Columbia, SC. The candidate will lead the design, development, and implementation of ...

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 ... Programmer - COBOL and IBM Enterprise COBOL for z/OS Programming * Solid knowledge of relational ...

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Senior Mainframe Programmer information

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How much do senior mainframe programmer jobs pay per hour?

As of Jun 21, 2026, the average hourly pay for senior mainframe programmer in the United States is $52.28, according to ZipRecruiter salary data. Most workers in this role earn between $43.99 and $62.50 per hour, depending on experience, location, and employer.

What is the difference between Senior Mainframe Programmer vs Mainframe Developer?

AspectSenior Mainframe ProgrammerMainframe Developer
CredentialsTypically requires a mainframe programming certification and several years of experienceOften requires similar certifications and experience, focusing on coding and development
Work EnvironmentWorks primarily on legacy mainframe systems within financial, insurance, or government sectorsDevelops and maintains mainframe applications, often in similar industries
Employer & Industry UsageCommonly employed by large corporations with mainframe infrastructureUsed interchangeably with mainframe programmer, focusing on application development

The main difference between a Senior Mainframe Programmer and a Mainframe Developer is primarily experience level and scope. Senior Mainframe Programmers often have more responsibilities, including overseeing projects and mentoring junior staff, while Mainframe Developers focus on coding and application creation. Both roles require similar credentials and are vital in industries relying on legacy mainframe systems.

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What cities are hiring for Senior Mainframe Programmer jobs? Cities with the most Senior Mainframe Programmer job openings:
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Senior Mainframe Programmer jobs near you
Infographic showing various Senior Mainframe Programmer job openings in the United States as of June 2026, with employment types broken down into 23% Full Time, 23% Temporary, and 54% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $108,736 per year, or $52.3 per hour.
Senior Mainframe Developer (Onsite)

Senior Mainframe Developer (Onsite)

Serigor, Inc.

Columbia, MD • On-site

$48.25 - $62/hr

Full-time

Posted 26 days ago

Job description

Job Title: Senior Mainframe Developer (Onsite)
Location: Columbia, MD
Job Type: Full-Time
Job Description:
  • We are seeking a highly experienced Senior Mainframe Developer to support large-scale enterprise modernization initiatives focused on transforming legacy Mainframe applications into modern, cloud-ready .NET platforms.
  • This role requires deep expertise in Mainframe technologies, enterprise modernization, and technical leadership. The ideal candidate will lead Mainframe analysis and modernization activities, collaborate with cross-functional engineering teams, and serve as the primary Mainframe technical lead throughout the modernization lifecycle.
  • Candidates should have strong experience analyzing complex legacy applications, documenting business rules and system dependencies, supporting AI-assisted modernization efforts, and working closely with client stakeholders and modernization teams.
  • Experience with automated code conversion tools, modernization factories, and enterprise transformation platforms is highly preferred.

Key Responsibilities:
  • Analyze, maintain, support, and modernize large-scale Mainframe applications and legacy systems
  • Work extensively with:
    • COBOL
    • JCL and PROCs
    • CICS
    • VSAM
    • DB2
    • IMS
    • BMS Maps
    • Batch processing environments
  • Lead Mainframe modernization discussions, workshops, and technical assessments with client stakeholders
  • Serve as the primary Mainframe technical lead for modernization activities, dependencies, and integration efforts
  • Analyze legacy business workflows, system integrations, data structures, and application dependencies
  • Recommend modernization, migration, remediation, and transformation strategies
  • Support AI-assisted code conversion, remediation, and modernization workflows
  • Document business rules, technical processes, data mappings, reconciliation logic, and functional behavior
  • Collaborate closely with .NET developers, architects, QA teams, DevOps engineers, and business analysts
  • Lead source code inventory analysis, dependency mapping, and system assessment activities
  • Support functional equivalence validation, reconciliation, testing, and stabilization efforts
  • Assist with enterprise data migration and synchronization between legacy and modernized systems
  • Troubleshoot production issues, optimize batch workloads, and support application enhancements
  • Participate in modernization factory workflows including automated analysis, remediation, and transformation activities
  • Prepare technical documentation, modernization artifacts, operational runbooks, and system analysis reports
  • Provide mentorship and technical leadership to modernization teams

Required Qualifications:
  • 15+ years of hands-on experience with enterprise Mainframe applications
  • Strong expertise with:
    • COBOL
    • JCL and PROCs
    • CICS
    • VSAM
    • DB2
    • IMS
    • BMS Maps
    • Batch processing systems
  • Strong understanding of:
    • Enterprise Mainframe architectures
    • Transaction processing systems
    • Batch processing frameworks
    • Legacy application workflows
    • Enterprise integration patterns
  • Extensive experience supporting large-scale legacy modernization initiatives
  • Experience working with automated code analysis tools, transformation pipelines, and modernization accelerators
  • Strong client-facing communication and stakeholder management skills
  • Experience serving as a technical lead on modernization programs
  • Strong understanding of enterprise business processes, data flows, and system dependencies
  • Exposure to:
    • Distributed systems
    • APIs and middleware
    • Hybrid integration architectures
    • Cloud modernization initiatives
  • Familiarity with AWS and/or Azure environments
  • Strong troubleshooting, analytical, and problem-solving skills
  • Ability to lead technical modernization activities independently in fast-paced enterprise environments
  • Excellent written and verbal communication skills

Preferred Qualifications
  • Exposure to:
    • C#
    • .NET / .NET Core
    • Java
    • Modern distributed application environments
  • Hands-on experience with:
    • Mainframe-to-.NET transformation
    • AI-assisted code conversion
    • Automated remediation workflows
    • Functional equivalence validation
    • Modernization factory delivery models
  • Experience working in Agile/Scrum delivery environments
  • Experience supporting government, financial, healthcare, tax, or other large enterprise modernization programs
  • Experience working with modernization factories, automated conversion tools, and migration accelerators
  • Familiarity with cloud-native modernization and hybrid cloud integration strategies

Technical Environment:
Mainframe Technologies:
  • Mainframe
  • COBOL
  • JCL and PROCs
  • CICS
  • VSAM
  • IMS
  • DB2
  • BMS Maps
  • Batch Processing Systems

Databases:
  • DB2
  • Microsoft SQL Server

Modernization & Integration:
  • Mainframe-to-.NET Migration
  • AI-Assisted Code Conversion
  • Automated Code Remediation
  • Functional Equivalence Testing
  • Enterprise Transformation Platforms
  • APIs and Middleware
  • System Integration

Cloud & Infrastructure:
  • AWS
  • Azure
  • Hybrid Cloud Architectures

Delivery & Operations:
  • Production Support
  • Technical Analysis
  • Migration Strategy
  • Source Code Analysis
  • Dependency Mapping
  • System Reconciliation
  • Technical Leadership

Apply