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Mainframe Developer Jobs in Philadelphia, PA (NOW HIRING)

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Mainframe Developer Location: Wilmington, Delaware (Onsite) Job Type: Contract Responsibilities: Primary Skill: VSAM, COBOL, DevOps * Design, code, test, and maintain mainframe applications using ...

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Mainframe Developer - Day 1 Onsite Location: Wilmington, DE & Jersey City, NJ (Weekly 5 days office is Must) Duration: 12+ Months Contract Skills: COBOL, JCL, CICS, IMS DB, VSAM Key Responsibilities ...

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Mainframe Developer Location : Wilmington DE Job Type: Contract/W2 Experience: 8+ Years Mandatory Skills- COBOL, MQ, JCL, DB2, CICS, VSAM Working on enterprise-wide applications, Agile methodologies ...

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Mainframe Developer Location : Wilmington DE Job Type: W-2/Full Time Required Skills: • Mandatory Skills- COBOL, MQ, JCL, DB2, CICS, VSAM Working on enterprise-wide applications, Agile ...

Mainframe Developer

Malvern, PA · On-site

$48 - $61.75/hr

Our client is currently seeking a Mainframe Developer 1+ Year Contract Opportunity Malvern, PA (hybrid--onsite Tuesdays, Wednesdays, and Thursdays) Responsibilities Design, develop, maintain, and ...

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Mainframe Developer Wilmington DE Experience: 8+ Years All over USA Mandatory Skills- * COBOL, MQ, JCL, DB2, CICS, VSAM * Working on enterprise-wide applications, Agile methodologies Process Skills:

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61/hr

Programming Languages: Strong proficiency in COBOL Mainframe Operating Systems: In-depth knowledge of z/OS Database Technologies: Expertise in IMS database concepts including IMS/DB and IMS/DC ...

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Job Title: Mainframe Developer Location : Wilmington DE Experience - 8+ - 5 Days Onsite MF JD: Mandatory Skills- COBOL, MQ, JCL, DB2, CICS, VSAM Working on enterprise-wide applications, Agile ...

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61/hr

Mainframe IMS DB Developer Job Location: Wilmington, DE Work Mode: 5 Days Onsite Required qualifications, capabilities, and skills. Hands-on practical experience in system design, application ...

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Mainframe Developer Wilmington, DE (Day 1 Onsite) Contract Job Requirements: * Prepares architecture and design documents for complex Banking applications keeping in mind design constraints that ...

Mainframe Developer

Trenton, NJ · On-site

$49.25 - $63.25/hr

MAINFRAME DEVELOPER CONTRACT DURATION: UP TO 3 MONTHS CONTRACT WITH POSSIBLE EXTENSION LOCATION: TRENTON, NJ 08625 (2 DAYS IN OFFICE REQUIRED) CONTRACTOR WILL BE RESPONSIBLE FOR ANALYSIS, DESIGN ...

Mainframe IMS and CICS

Wilmington, DE · On-site

$47.50 - $61.25/hr

Mainframe Developer - IMS and CICS Location : Wilmington, DE Onsite - Relocation from nearby states only Duration : Long term contract Required Skills: * Programming Languages: Strong proficiency in ...

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Mainframe Developer information

See Philadelphia, PA salary details

$9

$51

$69

How much do mainframe developer jobs pay per hour?

As of Jul 23, 2026, the average hourly pay for mainframe developer in Philadelphia, PA is $51.01, according to ZipRecruiter salary data. Most workers in this role earn between $45.05 and $57.88 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 Philadelphia, PA? The most popular types of Mainframe Developer jobs in Philadelphia, PA are:
What job categories do people searching Mainframe Developer jobs in Philadelphia, PA look for? The top searched job categories for Mainframe Developer jobs in Philadelphia, PA are:
What cities near Philadelphia, PA are hiring for Mainframe Developer jobs? Cities near Philadelphia, PA with the most Mainframe Developer job openings:
Infographic showing various Mainframe Developer job openings in Philadelphia, PA as of July 2026, with employment types broken down into 82% Full Time, 6% Part Time, 1% Temporary, and 11% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution, with an average salary of $106,110 per year, or $51 per hour.
Mainframe Developer

$47.50 - $61/hr

Other

Posted 3 days ago


Job description

Job Title: Senior Mainframe Developer

Location: Wilmington DE

Role Overview: We are seeking a Senior Mainframe Developer with strong expertise in COBOL, JCL, and Control-M/CCS (or similar scheduling systems) to support critical enterprise applications. The role involves code screening, analysis/scraping, enhancement, and development on legacy mainframe systems, along with participation in modernization and integration efforts.

This individual will play a key role in maintaining high-performance, stable mainframe applications while contributing to system improvements and integration initiatives.

Key Responsibilities

  • Perform code screening, analysis, and scraping of existing mainframe applications to identify dependencies, inefficiencies, and improvement opportunities
  • Design, develop, test, and maintain COBOL-based applications
  • Develop and manage JCL jobs, including batch processing and scheduling workflows
  • Work with CCS / Control-M / enterprise scheduling systems for job automation and monitoring
  • Analyze legacy code and contribute to modernization strategies
  • Collaborate with cross-functional teams to support integration with distributed systems or APIs
  • Troubleshoot production issues, identify root causes, and implement fixes
  • Ensure adherence to coding standards, performance guidelines, and security practices
  • Document technical specifications, code changes, and system workflows
  • Support QA/UAT cycles and deployment activities

Required Skills & Qualifications

  • 8+ years of experience in Mainframe development
  • Strong hands-on experience with:
    • COBOL
    • JCL (Job Control Language)
    • Mainframe utilities (VSAM, DB2, CICS as applicable)
  • Experience with CCS / Control-M / similar job scheduling tools
  • Experience with DB2, CICS transaction processing
  • Proven experience in code analysis, reverse engineering, and refactoring legacy systems
  • Strong debugging and problem-solving skills
  • Familiarity with batch processing and high-volume transaction systems

Ability to work independently and in a team-oriented environment