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Mainframes Developer Jobs in Philadelphia, PA (NOW HIRING)

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 ...

Sr Cobol Developer

Trenton, NJ · On-site

$50 - $65/hr

Senior Mainframe Developer / COBOL Senior Consultant Location: Trenton, NJ (Onsite) Duration : Contract Interview Type: In person Job Summary Candidates should have strong background in Cobol, ADABAS ...

Our client is currently seeking a Sr Mainframe Developer Develops and implements solutions that address complex business challenges, enhancing the ability to make data-driven decisions and improving ...

Our client is currently seeking a Sr Mainframe Developer Years of experience required: 8+ Develops and implements solutions that address complex business challenges, enhancing the ability to make ...

Mainframe Developer

Pennington, NJ · On-site

$49.50 - $63.50/hr

Required Skill and Experience • Experience in Mainframe technologies. • Experience in software design and development using Mainframe using COBOL, CICS, JCL, COBOL • Experience in DB2 and VSAM ...

Mainframe Assembler

Wilmington, DE · On-site

$47.50 - $61/hr

IBM Assembler (HLASM) Programming * IBM z/OS * Mainframe Application Development * SDLC * Debugging & Troubleshooting * Mainframe Performance Tuning * Technical Documentation * Mainframe System ...

Mainframe Assembler

Wilmington, DE · On-site

$47.50 - $61/hr

They must keep themselves updated with the latest mainframe technologies and assembler programming techniques to ensure the continuous functionality and reliability of mainframe systems.

Mainframe Assembler

Wilmington, DE · On-site

$47.50 - $61/hr

They must keep themselves updated with the latest mainframe technologies and assembler programming techniques to ensure the continuous functionality and reliability of mainframe systems.

Mainframe IMS DB Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Mainframe IMS DB Developer (10 roles) Location: Wilmington, DE - 5 days onsite Job Type: Contract/W2/Full Time Job Responsibilities: Executes software solutions, design, development, and technical ...

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Mainframes Developer information

See Philadelphia, PA salary details

$48.4K

$112.9K

$167.5K

How much do mainframes developer jobs pay per year?

As of Jul 22, 2026, the average yearly pay for mainframes developer in Philadelphia, PA is $112,861.00, according to ZipRecruiter salary data. Most workers in this role earn between $90,800.00 and $131,200.00 per year, depending on experience, location, and employer.

Are mainframe engineers in demand?

Mainframes developers are in steady demand due to the continued use of mainframe systems in industries like finance, government, and healthcare. They require specialized skills in COBOL, JCL, and mainframe environments, and demand often depends on the organization's reliance on legacy systems. While some companies are transitioning to newer technologies, mainframe expertise remains valuable for maintaining critical infrastructure.

What is mainframe developer salary?

The salary for a mainframe developer typically ranges from $70,000 to $120,000 annually, depending on experience, location, and certifications. Skilled developers with expertise in COBOL, JCL, and mainframe environments tend to earn higher salaries, especially in industries like finance and government. Salaries may also vary based on the complexity of projects and the employer's size.

Is mainframe developer a good career?

Mainframe developers work with large-scale computer systems used by many organizations for critical applications. The role offers stable employment, competitive salaries, and opportunities to work with legacy technologies like COBOL and JCL. As demand persists in industries such as finance and government, it can be a solid career choice for those with relevant skills and certifications.

Can mainframe be replaced by AI?

Mainframes are large-scale computing systems used for critical enterprise applications, and while AI can automate certain tasks and improve efficiency, it does not replace the core functions of mainframes. Mainframe developers focus on maintaining and optimizing these systems, often integrating AI tools to enhance performance but not replacing the hardware or fundamental role of mainframes in data processing. Skills in legacy systems, programming languages like COBOL, and system security remain essential for mainframe professionals.

What is the difference between Mainframes Developer vs Mainframes Analyst?

AspectMainframes DeveloperMainframes Analyst
Required CredentialsTypically a degree in Computer Science or related field; certifications like IBM Certified SpecialistSimilar credentials; often holds certifications in mainframe systems and analysis
Work EnvironmentDevelops, codes, and tests mainframe applications in a software development settingAnalyzes existing mainframe systems, gathers requirements, and supports system improvements
Employer & Industry UsageUsed by banks, insurance companies, and large enterprises for application developmentEmployed in similar industries for system analysis, troubleshooting, and process optimization

While both roles require knowledge of mainframe systems and similar credentials, Mainframes Developers focus on creating and maintaining mainframe applications, whereas Mainframes Analysts analyze existing systems to improve performance and efficiency. Both roles are vital in large enterprise IT environments.

What job categories do people searching Mainframes Developer jobs in Philadelphia, PA look for? The top searched job categories for Mainframes Developer jobs in Philadelphia, PA are:
What cities near Philadelphia, PA are hiring for Mainframes Developer jobs? Cities near Philadelphia, PA with the most Mainframes Developer job openings:
Infographic showing various Mainframes Developer job openings in Philadelphia, PA as of July 2026, with employment types broken down into 46% Full Time, and 54% Contract. Highlights an 86% In-person, 2% Hybrid, and 12% Remote job distribution, with an average salary of $112,861 per year, or $54.3 per hour.
Sr Mainframe Developer

Sr Mainframe Developer

Ruri Software Technologies LLC

Wilmington, DE • On-site

Full-time

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


Job description

Job Title: Sr Mainframe Developer
Work Location: Wilmington, DE
Duration: 8+ Months
Job Description:
• Develops and implements solutions that address complex business challenges, enhancing the ability to make data-driven decisions and improving operational efficiency
• Prepares architecture and design documents for complex Banking applications keeping in mind design constraints that translate to coding
• Develops secure and high-quality code that runs in sync with other highly efficient sub systems
• Think out-of-the-box proactively and be creative by challenging conventional approaches and contribute towards operational efficiency
• Troubleshoots problems, works with Product Teams and other stake holders to understand complex Requirements and be able to break them down to design/development.
Top Skills To Have (must be showcased on resume clearly):
• Candidate should have expertise in COBOL, JCL, VSAM & DB2.
• Expertise in CICS Programming including knowledge of CICS Screen Programming.
• Experience coding in MQ Series & IMS DB is preferred
• Experience in Banking Compliance and Regulatory Platform is preferred.
Must have hands-on coding development experience.
Experience with version control. Ability to communicate effectively with team members and clients and excellent problem-solving skills