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Mainframes Developer Jobs in Delaware (NOW HIRING)

Mainframe Developer

Newark, DE · On-site

$48 - $61.50/hr

Mainframe Developer Job Location : Newark, DE (ONSITE) Job Type : Full-Time Mainframe Developer: Proven hands-on experience (7-10 years) Mainframe developer with COBOL 370, EZTrieve Plus, JCL/PROCS ...

Mainframe Developer

Wilmington, DE · On-site

$50 - $55/hr

Mainframe Developer Location : Wilmington, DE OR Jersey City, NJ Exp: 15+ Yrs Rate: $50-55/hr on W2 RTTO - 5 Days Onsite Visa : USC and GC only Mainframe - JD Must be really strong profile ...

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:

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 ...

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 ...

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 ...

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 - $61.25/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

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 ...

$47.50 - $61.25/hr

Mainframe Developer with IMS Background Location: Wilmington, DE Duration: Contract 100% Onsite (5 days in a Week) Mandatory Skill Set: COBOL, IMS, DB2,JCL,VSAM, CICS * 8 to 12 Yrs of experience in ...

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

Wilmington, DE · On-site

$47.50 - $61/hr

Role: Sr Mainframe Developer Location: Wilmington, DE Years of experience required: 8+ · Develops and implements solutions that address complex business challenges, enhancing the ability to make ...

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Mainframes Developer information

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.

Is a mainframes developer a good career?

A mainframes developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical data processing. The role offers stable employment, competitive salaries, and opportunities to work with legacy systems and mainframe programming languages like COBOL. However, it requires specific skills and certifications, and the field may have limited growth compared to emerging technologies.

Is a mainframes developer still in demand?

Mainframes developers are still in demand in industries such as finance, government, and healthcare that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand persists due to the ongoing need to maintain and upgrade existing mainframe applications. However, the number of new positions is limited compared to emerging technologies, and skills in mainframe modernization are increasingly valued.

What does a mainframes developer do?

A mainframes developer designs, codes, tests, and maintains applications running on mainframe computers, often using languages like COBOL, PL/I, or Assembler. They ensure the stability, security, and efficiency of large-scale enterprise systems, frequently working with legacy code and mainframe-specific tools in a structured environment.

What are popular job titles related to Mainframes Developer jobs in Delaware?

For Mainframes Developer jobs in Delaware, the most frequently searched job titles are:

What job categories do people searching Mainframes Developer jobs in Delaware look for?

The top searched job categories for Mainframes Developer jobs in Delaware are:

Infographic showing various Mainframes Developer job openings in Delaware as of August 2026, with employment types broken down into 82% Full Time, 6% Part Time, and 12% Contract. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution.

Mainframe Developer

Newark, DE • On-site

Centraprise
IT Services • 51 - 200 employees

$48 - $61.50/hr

Full-time

Re-posted yesterday


Job description

Job Title : Mainframe Developer
Job Location : Newark, DE (ONSITE)
Job Type : Full-Time
Job Description:
Mainframe Developer:
Proven hands-on experience (7-10 years)
Mainframe developer with COBOL 370, EZTrieve Plus, JCL/PROCS, FILEMANAGER and IBM Utilities such as SYNCSORT, SUPERC, COMPAREX, IEBGENER
Development with IMS DC/DB, VSAM / DB2, NDM, CA7 Scheduler and ISPW
Working knowledge of using Agile methodology in a fast paced environment and supporting program increments leading to delivery of features/stories.
Ability to communicate effectively, both written and verbal, with technical and non-technical cross-functional teams.