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Mainframe Jobs in Philadelphia, PA (NOW HIRING)

Synapse Tech Services Inc

Mainframe Assembler

Wilmington, DE · On-site

$47.50 - $61/hr

Mainframe Assembler Location: Wilmington, DE (No Remote Option)- 100% Onsite (5 Days/Week) Job Type: Contract Experience: 10+ Years Position ID: Mphasis-117486-12-1 : Required Skills: * IBM Assembler ...

Percient Inc

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61/hr

Must be really strong profile Analytically - as they are converting Mainframe tech to Java tech Please look for experienced persons ( 15+ ) Mainframe Modernization experience Mainframe Analysis for ...

Centstone

Mainframe Assembler

Wilmington, DE · On-site

$45 - $55/hr

Mainframe Assembler Location: Wilmington, Delaware Pay Rate: $45-$55/hr Contract: Long-Term Contract Schedule: Onsite | 5 Days/Week Work Model: Onsite (5 Days/Week) Employment Type: Contract ...

Maintec Technologies

Mainframe Assembler

Wilmington, DE · On-site

$60 - $65/hr

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 ...

New

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:

Divit Technologies, Inc.

Mainframe Engineer

Wilmington, DE · On-site

$47.50 - $61/hr

Mainframe Engineer Interview : 2 rounds of Interview Work Mode : 5 DAYS Work from office Skills : COBOL, IMSDB, IMSDC Location : Wilmington, DE Required Skills: * Programming Languages: Strong ...

Scout ET

Mainframe Programmer

Pennington, NJ

Mainframe Programmer Location: Pennington, NJ Duration: 1 year Type: Contract jobs Estimated Duration: Long Term Contract Interview: Phone following to in-person. Onsite: On location at the Client ...

2T Consulting

Mainframe Assembler Developer

Wilmington, DE

$47.50 - $61.25/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler programming and mainframe environments. The ideal candidate will be responsible for designing ...

Accenture

Mainframe Specialist

Philadelphia, PA · On-site

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, and RACF? We are looking for exceptional talent to ...

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 ...

Virtusa Corporation

Mainframe Architect

Wilmington, DE · On-site

• Design, code, test, and maintain mainframe applications using COBOL, JCL, DB2, IMS DB, CICS. • Develop and support batch and online processes, including job streams, transaction systems, and ...

New

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.

Centstone

Mainframe IMS & CICS Developer

Wilmington, DE · On-site

$45 - $55/hr

Mainframe IMS & CICS Developer Location: Wilmington, DE (100% Onsite - 5 Days/Week) Pay Rate: $45-$50/Hour (C2C) Contract: Contract Schedule: Monday-Friday | Onsite Experience: 10+ Years About the ...

Dew Softech Inc

Senior COBOL /Mainframe Developer

Trenton, NJ · On-site

$49.25 - $63.25/hr

Senior COBOL /Mainframe Developer Location: Trenton, NJ (On site) Position Type: Contract In Person interview *Local Candidates only. Candidates should have strong background in Cobol, ADABAS, and ...

Compunnel

Mainframe IMS and CICS

Wilmington, DE · On-site

$47.50 - $61.25/hr

Key Responsibilities • Design, develop, test, and maintain mainframe applications using COBOL. • Develop and support online transaction processing applications using CICS. • Design, maintain ...

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 : • ...

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All JobsMainframe JobsMainframe Jobs in Philadelphia, PA

Mainframe information

See Philadelphia, PA salary details

$10

$53

$73

How much do mainframe jobs pay per hour?

As of Aug 15, 2026, the average hourly pay for mainframe 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.

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

To excel as a Mainframe Developer, a strong background in COBOL, JCL, mainframe operating systems (like z/OS), and database management is essential, often supported by a degree in computer science or a related field. Familiarity with tools such as IBM DB2, CICS, VSAM, and mainframe version control systems is typically required, and certifications like IBM Certified System Programmer can be advantageous. Analytical thinking, problem-solving abilities, and effective communication are important soft skills for identifying issues and collaborating with cross-functional teams. These skills ensure reliable maintenance, development, and modernization of mission-critical legacy systems that support large-scale business operations.

Is mainframe still in demand?

Mainframe professionals are still in demand, especially in industries like finance, healthcare, and government that rely on large-scale, secure, and reliable data processing. Skills in COBOL, JCL, and mainframe security are valuable, and many organizations continue to maintain and upgrade their legacy systems, creating ongoing job opportunities for mainframe specialists.

Is mainframe a good career option?

Mainframe careers involve working with large-scale computer systems used by many organizations for critical applications. The role typically requires knowledge of programming languages like COBOL, system administration, and understanding of legacy systems, with steady demand in finance, government, and large enterprises. It can be a stable career with opportunities for specialization and certification but may require ongoing learning of evolving technologies.

What is a job in mainframe?

A mainframe job involves working with large-scale computer systems that handle critical applications and data processing for organizations. These roles typically require knowledge of mainframe operating systems like z/OS, programming skills in languages such as COBOL or JCL, and familiarity with mainframe hardware and security protocols.

What is a mainframe?

Mainframes are powerful computers used mainly by large organizations for critical applications, bulk data processing, large-scale transaction processing, and enterprise resource planning. They are known for their reliability, scalability, and security, making them essential for industries like banking, healthcare, and government. Mainframes can handle thousands of users and transactions simultaneously, supporting the core operations of many businesses.

What are some typical challenges faced by mainframe professionals when integrating legacy systems with modern technologies?

Mainframe professionals often encounter challenges when integrating legacy systems with newer technologies, such as ensuring data compatibility, managing security protocols, and minimizing downtime during migration. These tasks require a deep understanding of both the existing mainframe architecture and the modern platforms being introduced. Collaboration with cross-functional teams—including application developers, security specialists, and project managers—is essential to ensure seamless integration and to address potential issues proactively. Staying updated on the latest integration tools and best practices also helps in overcoming these challenges efficiently.

What is the difference between Mainframe vs Mainframe Developer?

AspectMainframeMainframe Developer
Primary RoleMaintains and manages mainframe hardware and systemsDesigns, develops, and tests mainframe applications
Skills & CertificationsKnowledge of mainframe hardware, OS, and basic scriptingProficiency in COBOL, JCL, and mainframe programming languages
Work EnvironmentData centers, enterprise IT departmentsDevelopment teams within mainframe environments
Industry UsageUsed by organizations with legacy systemsDevelops and maintains those legacy systems

While Mainframe professionals focus on maintaining the hardware and system infrastructure, Mainframe Developers specialize in creating and updating mainframe applications. Both roles require knowledge of mainframe environments, but their responsibilities differ significantly within the same industry.

More about Mainframe jobs

What are the most commonly searched types of Mainframe jobs in Philadelphia, PA?

The most popular types of Mainframe jobs in Philadelphia, PA are:

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

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

What job categories do people searching Mainframe jobs in Philadelphia, PA look for?

The top searched job categories for Mainframe jobs in Philadelphia, PA are:

What cities near Philadelphia, PA are hiring for Mainframe jobs?

Cities near Philadelphia, PA with the most Mainframe job openings:

Mainframe jobs near you
Infographic showing various Mainframe job openings in Philadelphia, PA as of August 2026, with employment types broken down into 75% Full Time, 7% Part Time, 1% Temporary, and 17% Contract. Highlights an 81% Physical, 8% Hybrid, and 11% Remote job distribution, with an average salary of $112,035 per year, or $53.9 per hour.

Mainframe Assembler

Synapse Tech Services Inc

Wilmington, DE • On-site

$47.50 - $61/hr

Other

Posted 28 days ago

Job description

Please share your resume to Fasi at synapsetechservice dot com

Job Title: Mainframe Assembler
Location: Wilmington, DE (No Remote Option)- 100% Onsite (5 Days/Week)
Job Type: Contract

Experience: 10+ Years
Position ID: Mphasis-117486-12-1:

Required Skills:

  • IBM Assembler (HLASM) Programming
  • IBM z/OS
  • Mainframe Application Development
  • SDLC
  • Debugging & Troubleshooting
  • Mainframe Performance Tuning
  • Technical Documentation
  • Mainframe System Support
  • JCL
  • COBOL (Preferred)
  • CICS (Preferred)
  • DB2 (Preferred)

Job Responsibilities:

  • Design, develop, code, and test applications using IBM Assembler.
  • Work across all phases of the Software Development Life Cycle (SDLC).
  • Debug and troubleshoot mainframe applications to ensure optimal performance.
  • Develop and maintain technical documentation for assembler programs.
  • Provide technical support for mainframe systems and ensure adherence to coding standards.
  • Optimize application performance and maintain system reliability.
  • Collaborate with system architects, analysts, and cross-functional teams to translate business requirements into efficient low-level machine code.
  • Stay updated with the latest mainframe technologies and assembler programming practices.

Requirements:

  • 10+ years of hands-on experience in Mainframe Assembler programming.
  • Strong expertise with IBM z/OS operating system.
  • Experience with the complete SDLC.
  • Excellent debugging and problem-solving skills.
  • Strong knowledge of mainframe architecture and system programming.
  • Experience with JCL; knowledge of COBOL, CICS, and DB2 is a plus.
  • Excellent communication and documentation skills.

Apply