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Mainframe Developer Jobs in Philadelphia, PA (NOW HIRING)

Percient Inc.

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61/hr

Mainframe Developer Location: Wilmington, DE * Design, coding, and testing: Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler ...

Lorven Technologies

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 ...

VIS IT Solutions Inc

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:

3B Staffing LLC

Mainframe Developer

Pennington, NJ · On-site

$49.50 - $63.50/hr

Role: Mainframe Developer Location: Pennington, NJ Duration: Full Time Primary Skills : Cobol, JCL, DB2 & CICS Required Skills: 5-7 years of expert COBOL, DB2, and CICS experience Outstanding ...

New

Donato Technologies, Inc

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:

3B Staffing LLC

Mainframe Developer

Pennington, NJ · On-site

$49.50 - $63.50/hr

Role: Mainframe Developer Location: Pennington, NJ Duration: Full Time Primary Skills : Cobol, JCL, DB2 & CICS Required Skills: 5-7 years of expert COBOL, DB2, and CICS experience Outstanding ...

New

Judge Group, Inc.

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 ...

Hirekeyz Inc

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 ...

Hirekeyz Inc

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Job Title: 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 ...

Xforia, Inc.

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 ...

Lorven Technologies

Sr. Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Hi, Our client is looking for a Sr. Mainframe Developer in Wilmington, DE location below is the detailed requirement. Job Title: Sr. Mainframe Developer Location: Wilmington, DE * Bachelor's degree ...

New

Cynet Systems

Mainframe Developer

Wilmington, DE · On-site

$46 - $51/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

We are looking for Mainframe Developer for our client in Wilmington DE . Job Title: Mainframe Developer Job Location: Wilmington DE Job Type: Contract Job Overview: Pay Range: $46hr - $51hr ...

Saransh Inc

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 ...

Synapse Tech Services Inc

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 ...

RIT Solutions, Inc.

Mainframe Developer w/AWS

Malvern, PA · On-site

$48 - $61.75/hr

RIT Solutions, Inc. is seeking a Mainframe Developer with AWS expertise. The role involves working with mainframe technologies and tools to support various projects. Qualifications : Required : • ...

RIT Solutions, Inc.

Mainframe Developer w/AWS

Malvern, PA · On-site

$48 - $61.75/hr

RIT Solutions, Inc. is seeking a Mainframe Developer with AWS expertise. The role requires strong technical skills in mainframe technologies and job control to support various projects.

Apolis

Sr Mainframe Developer

Wilmington, DE · On-site

* Job Title: Sr. Mainframe Developer Location: Hybrid (Minimum 3 Days Onsite) - Wilmington, DE 19803 Tax Term (W2, C2C): W2 Job Type (Permanent/Contract): Contract Duration: Long Term Open Description:

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All JobsMainframe Developer JobsMainframe Developer Jobs in Philadelphia, PA

Mainframe Developer information

See Philadelphia, PA salary details

$10

$53

$73

How much do mainframe developer jobs pay per hour?

As of Aug 14, 2026, the average hourly pay for mainframe developer in Philadelphia, PA is $53.86, according to ZipRecruiter salary data. Most workers in this role earn between $47.55 and $61.11 per hour, depending on experience, location, and employer.

Is a mainframe developer hard to learn?

Mainframe developers typically need to learn specialized programming languages like COBOL and understand mainframe environments, which can have a steep learning curve for beginners. However, with prior programming experience and training, acquiring the necessary skills is achievable, and many employers offer on-the-job training or certification programs.

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.

Is a mainframe developer a good career?

A mainframe 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 requires skills in languages like COBOL and tools such as JCL. Demand remains steady in industries like finance and government, making it a viable career choice for those with relevant expertise.

What is a mainframe developer?

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.

Is mainframe developer still in demand?

Mainframe developers are still in demand in industries such as finance, government, and insurance that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand remains steady due to the ongoing need for system maintenance and integration. However, the overall job market is gradually shifting toward modern technologies, so acquiring skills in related areas can enhance job prospects.

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

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 are popular job titles related to Mainframe Developer jobs in Philadelphia, PA?

For Mainframe Developer jobs in Philadelphia, PA, the most frequently searched job titles 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:

Mainframe Developer jobs near you
Infographic showing various Mainframe Developer job openings in Philadelphia, PA as of August 2026, with employment types broken down into 75% Full Time, 9% Part Time, 1% Temporary, and 15% Contract. Highlights an 79% Physical, 6% Hybrid, and 15% Remote job distribution, with an average salary of $112,035 per year, or $53.9 per hour.

Mainframe Developer

Percient Inc.

Wilmington, DE • On-site

$47.50 - $61/hr

Other

This job post has expired today. Applications are no longer accepted.

Job description

Job Title: Mainframe Developer
Location: Wilmington, DE
Job Description:

  • Design, coding, and testing: Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life Cycle (SDLC) and have a solid understanding of mainframe operating systems, such as z/OS.


  • Debugging and troubleshooting: They perform debugging and troubleshooting of mainframe applications to ensure they function correctly and efficiently.


  • Documentation: Mainframe assemblers may also be responsible for documenting the design of the assembler programs, explaining how they work, and providing guidelines for their use.

  • Technical support: They provide technical support for mainframe systems, optimizing performance, and ensuring compliance with coding standards and technical design.

  • These assemblers work closely with system architects and analysts to understand the requirements and specifications of a system, and then translate these into efficient, low-level machine code. They must keep themselves updated with the latest mainframe technologies and assembler programming techniques to ensure the continuous functionality and reliability of mainframe systems.

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