ZipRecruiter

Log In

1

Mainframes Developer Jobs in Delaware (NOW HIRING)

Judge Group, Inc.

Sr Mainframe Developer

Wilmington, DE · On-site

$50.50/hr

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 ...

Reqroute, Inc

Be Seen First

Sr Mainframe Developer

Wilmington, DE · On-site

$50 - $55/hr

... CICS Programming including knowledge of CICS Screen Programming is Mandatory · Experience ... DB2 Mainframe Cobol VSAM CICS JCL Company Description This position is for one of the big ...

Ensono

Senior Mainframe Developer

Dover, DE · On-site

$102K - $148K/yr

Senior Mainframe DeveloperRemote - United StatesJR013826 At Ensono, our Purpose is to be a relentless ally, disrupting the status quo and unleashing our clients to Do Great Things ! We enable our ...

Kyyba

Senior Mainframe Application Developer

Wilmington, DE · On-site

$47.50 - $61/hr

Senior Mainframe Application Developer Location : Wilmington, DE Onsite Contract RTTO - 5 Days Onsite Mandatory Skills - IBM-Z/OS COBOL, CICS, DB2, IBM MQ, VSAM, JCL, CA7, Changeman and IBM Mainframe ...

Hirekeyz Inc

Senior Mainframe Application Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Senior Mainframe Application Developer Location : Wilmington, DE (5 Days Onsite) Duraction: Full Time Mandatory Skills - IBM-Z/OS COBOL, CICS, DB2, IBM MQ, VSAM, JCL, CA7, Changeman and IBM Mainframe ...

Apply Early

Hirekeyz Inc

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 ...

Apply Early

Hirekeyz Inc

Mainframe IMS and CICS

Wilmington, DE · On-site

$47.50 - $61.25/hr

Wilmington, DE ( 5 Day Onsite ) Duraction: Full Time Required Skills: • Programming Languages: Strong proficiency in COBOL • Mainframe Operating Systems: In-depth knowledge of z/OS • Database ...

Apply Early

Hirekeyz Inc

Mainframe IMS and CICS

Wilmington, DE · On-site

$47.50 - $61.25/hr

W-2/Full Time Required Skills: • Programming Languages: Strong proficiency in COBOL • Mainframe Operating Systems: In-depth knowledge of z/OS • Database Technologies: Expertise in IMS database ...

Apply Early

Xforia, Inc.

Mainframe IMS and CICS

Wilmington, DE · On-site

$47.50 - $61.25/hr

Jersey City NJ Experience - 8+ RTTO - 5 Days Onsite Required Skills: • Programming Languages: Strong proficiency in COBOL • Mainframe Operating Systems: In-depth knowledge of z/OS • Database ...

Lorven Technologies

Mainframe IMS and CICS

Wilmington, DE · On-site

$47.50 - $61.25/hr

Wilmington DE (5 Days Onsite) Contract/Fulltime Required Skills: ( Should be flexible for on call support) • Programming Languages: Strong proficiency in COBOL • Mainframe Operating Systems: In ...

Staffingine LLC

Mainframe IMS DB Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Mainframe IMS DB Developer Job Location: Wilmington, DE Job Type: Full-Time * Executes software solutions, design, development, and technical troubleshooting with ability to think beyond routine or ...

Apply Early

Apolis

Mainframe Architect with AWS

Wilmington, DE · On-site

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

next page

Showing results 1-20

All JobsMainframes Developer JobsMainframes Developer Jobs in Delaware

Mainframes Developer information

What does a mainframe developer do?

A mainframe developer designs, codes, tests, and maintains applications running on mainframe computers, often using languages like COBOL, PL/I, or Assembler. They work in environments that require high reliability and security, and may also handle system updates, performance tuning, and integration with other systems.

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. Senior roles or those with specialized skills in COBOL, JCL, or mainframe environments may earn higher compensation. Many positions also offer benefits such as health insurance and retirement plans.

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 often work with legacy systems, COBOL programming, and security protocols, which require specialized skills that are not fully replaced by AI technologies.

Is mainframe still in demand?

Mainframes remain in demand for large enterprises such as banks, insurance companies, and government agencies that rely on their reliability, security, and processing power. Mainframe developers with skills in COBOL, JCL, and mainframe environments are sought after to maintain and upgrade legacy systems, though the overall demand has decreased as organizations adopt cloud and distributed computing. Certification and experience with mainframe tools can enhance job prospects in this specialized field.

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 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:
Mainframes Developer jobs near you
Infographic showing various Mainframes Developer job openings in Delaware as of June 2026, with employment types broken down into 43% Full Time, and 57% Contract. Highlights an 100% In-person job distribution.
Sr Mainframe Developer

Sr Mainframe Developer

Judge Group, Inc.

Wilmington, DE • On-site

$50.50/hr

Other

Posted 15 days ago

Key responsibilities

  • Develops and implements solutions that address complex business challenges to improve operational efficiency.

  • Prepares architecture and design documents for complex Banking applications considering design constraints.

  • Troubleshoots problems and works with Product Teams and stakeholders to understand and break down complex requirements for design and development.

Job description

Location: Wilmington, DE Salary: $50.00 USD Hourly - $50.50 USD Hourly Description: Our client is currently seeking a Sr Mainframe Developer
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.
Job Requirements:
Candidate should have expertise in COBOL, JCL, VSAM, IMS, CICS & DB2.
Expertise in CICS Programming including knowledge of CICS Screen Programming is Mandatory
Experience/Knowledge in building and maintaining new Test regions is preferred.
Experience coding in MQ Series & IMS DB is Mandatory.
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
By providing your phone number, you consent to: (1) receive automated text messages and calls from the Judge Group, Inc. and its affiliates (collectively "Judge") to such phone number regarding job opportunities, your job application, and for other related purposes. Message & data rates apply and message frequency may vary. Consistent with Judge's Privacy Policy, information obtained from your consent will not be shared with third parties for marketing/promotional purposes. Reply STOP to opt out of receiving telephone calls and text messages from Judge and HELP for help.
Contact:
This job and many more are available through The Judge Group. Please apply with us today!

Apply