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Mainframe Developer Jobs in Delaware (NOW HIRING)

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

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 ...

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 ...

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 ...

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 ...

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

Diverse Lynx

Mainframe Modernization

Wilmington, DE · On-site

$47.50 - $61/hr

Mainframe Modernization Location : Wilmington, DE Experience - 8+ RTTO - 5 Days Onsite Required Skills: Mainframe Modernization experience Mainframe Analysis for the existing code and Documentation ...

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Mainframe Developer information

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How much do mainframe developer jobs pay per hour?

As of Jul 1, 2026, the average hourly pay for mainframe developer in Delaware is $53.42, according to ZipRecruiter salary data. Most workers in this role earn between $47.16 and $60.62 per hour, depending on experience, location, and employer.

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.

What are Mainframe Developers?

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.

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

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 Delaware? The most popular types of Mainframe Developer jobs in Delaware are:
What are popular job titles related to Mainframe Developer jobs in Delaware? For Mainframe Developer jobs in Delaware, the most frequently searched job titles are:
What job categories do people searching Mainframe Developer jobs in Delaware look for? The top searched job categories for Mainframe Developer jobs in Delaware are:
What cities in Delaware are hiring for Mainframe Developer jobs? Cities in Delaware with the most Mainframe Developer job openings:
What are popular job titles related to Mainframe Developer jobs in DE? For Mainframe Developer jobs in DE, the most frequently searched job titles are:
Mainframe Developer jobs near you
Infographic showing various Mainframe Developer job openings in Delaware as of June 2026, with employment types broken down into 77% Full Time, 15% Part Time, and 8% Contract. Highlights an 83% Physical, 6% Hybrid, and 11% Remote job distribution, with an average salary of $111,122 per year, or $53.4 per hour.

Onsite :: Senior Mainframe Developer :: Wilmington, DE :: 1 Year

Kanak Elite Services Inc

Wilmington, DE • On-site

Contractor

Posted 13 days ago

Job description

Hello There,

My name is Amit Kumar, and I serve as the Sr. Technical Recruiter at Kanak-IT INC. I am reaching out to share an excellent career opportunity for the role of “Senior Mainframe Developer” with our esteemed client. If you are interested then please share your updated resume at Amitkumar@kanakits.com .

Job Title: Senior Mainframe Developer

Location: Onsite, Wilmington, DE

Duration: Length of Assignment: 1 year w/ extension

Required skills:

  • IMS DB
  • MQ Series
  • COBOL
  • JCL
  • VSAM
  • IMS
  • CICS
  • DB2

Job Summary:

• 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.

Required Skills:

  • 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