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Mainframes 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 ...

New

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 ...

New

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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Mainframes Developer information

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 are popular job titles related to Mainframes Developer jobs in Colorado? For Mainframes Developer jobs in Colorado, the most frequently searched job titles are:
What job categories do people searching Mainframes Developer jobs in Colorado look for? The top searched job categories for Mainframes Developer jobs in Colorado are:
Mainframes Developer jobs near you
Infographic showing various Mainframes 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.
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

Re-posted 11 days ago

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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