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Mainframe Developer Jobs in Colorado (NOW HIRING)

Accenture

Mainframe Specialist

Denver, CO · On-site

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

New

Accenture

Mainframe Specialist

Denver, CO

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

New

Huntington

Mainframe Systems Engineer III

Denver, CO · On-site

$178K - $211K/yr

The Mainframe Systems Engineer III candidate must have experience in one or more of the following disciplines: z/OS installation and customization, storage management, hardware configuration ...

Visa

Sr. SW Engineer - Mainframe

Denver, CO · On-site

$126K - $166K/yr

... of mainframe software applications. The role is responsible for contributing to the overall ... Leverage and build knowledge of software developer tools to create, debug, and maintain code for ...

Visa

Sr. SW Engineer - Mainframe

Denver, CO

$126K - $166K/yr

... of mainframe software applications. The role is responsible for contributing to the overall ... Leverage and build knowledge of software developer tools to create, debug, and maintain code for ...

Tink

Director (Mainframe and GGS)

Highlands Ranch, CO · Hybrid

$257K/yr

Coaches and develops engineers to adapt to evolving tools, frameworks, and AI‑driven workflows ... Manage development resources on the IBM Mainframe Settlement and Reporting AND GGS applications, by ...

Visa

Lead Software Engineer

Denver, CO · Hybrid

Visa will accept applications for this role until at least 07-31-2026 As a Lead Software Engineer ... Participate in and coordinate on-call rotations to support 24x7 mainframe operations. * Guide ...

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Mainframe Developer information

See Colorado salary details

$10

$56

$76

How much do mainframe developer jobs pay per hour?

As of Jul 10, 2026, the average hourly pay for mainframe developer in Colorado is $56.13, according to ZipRecruiter salary data. Most workers in this role earn between $49.52 and $63.70 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.
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Mainframe Developer jobs near you
Infographic showing various Mainframe Developer job openings in Colorado as of July 2026, with employment types broken down into 83% Full Time, 7% Part Time, 1% Temporary, and 9% Contract. Highlights an 80% Physical, 4% Hybrid, and 16% Remote job distribution, with an average salary of $116,746 per year, or $56.1 per hour.
New Job Opening - Mainframe Engineer - Remote

New Job Opening - Mainframe Engineer - Remote

TriOptus LLC

Englewood, CO • On-site, Remote

$48.50 - $62.25/hr

Full-time

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

Job description

Job Code - Mainframe Engineer
Work Location - Remote
Total Hours - 1 year contract initially
Description
  • IBM and IBM customer mainframe systems. Provide Tier3 host network services support in broadest sense, at expert level for host network components VTAM/SNA, TCP/IP, secure FTP, Telnet3270, SMTP, Netview, NetView/FTP, Connect Direct and XCOMetc.
  • The level of support requires understanding, knowledge and experience of IBM zSeries mainframe systems and technology, for z/OS (MVS).
  • Required competencies and knowledge and experience for the following host network components: z/OS Communication server, VTAM/SNA, APPN/EE (Enterprise Extender), TCP/IP, FTP, Including secure file transfer, Telnet 3270, incl. TLS/SSL, SMTP, Netview, NetView/FTP, and any other network component, which are defined in scope of support.

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