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Mainframes Developer Jobs in Colorado (NOW HIRING)

Visa

Sr. SW Engineer

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 ...

PNC Bank

Software Engineering Manager

Denver, CO · On-site

Core Technologies Programming/Runtime: Java, SQL, Tomcat, Websphere Databases ... Oracle, SQL, Neo4J, Mongo (distributed) or DB2, VSAM (mainframe) Streaming/Event Platforms: Kafka ...

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 ...

krg technology inc

Test Engineer

Denver, CO

Company Description Sevagan M sevagan at krgtech com ph-661-367-8000 Extn-513 Manual Testing of Web Service using REST / SOAP Telecom domain with TIBCO, SQL, Mainframe JavaScript / Java / Python - to ...

Stem Xpert

LAN Engineer

Golden, CO · On-site

SAN engineer Requirement: Golden, CO Duration: 12 months Face to Face Interview Required. Local ... mainframe, circuit vendors, desktop and firewall support. The candidate will develop LAN cabling ...

US Bank

Senior Software Engineer (Hogan API)

Englewood, CO · On-site

$121K - $159K/yr

Hands on Mainframe development experience with Hogan COBOL, JCL, CICS, Json and Splunk, IMS Database, Gitlab, IDz/RDz (IBM Developer for zOS), Jira * Strong experience with Application maintenance ...

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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.
Lead Software Engineer - IBM z/OS - Connex Advantage Clearing and Settlement

Lead Software Engineer - IBM z/OS - Connex Advantage Clearing and Settlement

Visa

Denver, CO • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 25 days ago

Visa rating

8.5

Company rating: 8.5 out of 10

Based on 18 frontline employees who took The Breakroom Quiz

5th of 20 rated payment service providers

Job description

About Us
Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.
At Visa, you'll have the opportunity to create impact at scale - tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world.
Join Visa and do work that matters - to you, to your community, and to the world. Progress starts with you.
Visa will accept applications for this role until at least 07-31-2026
Job Description
As a Lead Software Engineer within the Visa - Value Added Services - Issuing Solutions team, you will oversee the DPS Core Clearing and Settlement systems, ensuring the integrity and high availability of all batch applications operating on the IBM z/OS390 platform. You will play a critical role in managing and optimizing the settlement of approximately $5 billion daily by processing about 240 million transactions each day.
This is an advanced professional individual contributor role responsible for solving problems that have a medium to large impact on the business.
Your responsibilities include:
  • Oversee 2nd and 3rd level incident and problem resolution, ensuring timely determination and resolution of issues in both Production and Development environments.
  • Collaborate closely with application software development teams to manage and support software maintenance releases.
  • Direct and support new client implementations on the IBM z/OS390 platform, ensuring seamless integration and deployment.
  • Initiate and manage proactive measures to ensure a stable and reliable production environment.
  • Provide expert technical guidance to Client Services, Network Operations, and Implementation teams.
  • Lead the testing and certification processes for new DPS software and client integrations.
  • Partner with network operations and technical support teams to identify, design, and implement application fixes and enhancements that improve efficiency and usability.
  • Acting as the primary escalation point for complex problem resolution.
  • Participate in and coordinate on-call rotations to support 24x7 mainframe operations.
  • Guide technical decision-making, mentor team members, and drive strategic initiatives to maintain and enhance the reliability and performance of Visa DPS batch processing infrastructure.
  • Design and implement automation solutions to streamline routine mainframe operations and reduce manual intervention.
  • Ensure compliance with industry security standards and internal controls for mainframe systems and data.
  • Monitor system performance metrics, analyze trends, and recommend infrastructure enhancements to optimize mainframe efficiency.
  • Coordinate disaster recovery planning and execution to guarantee business continuity for critical mainframe applications.
  • Document system architectures, processes, and procedures to support knowledge transfer and audit requirements.
  • Passion for staying current with emerging technologies in AI, cloud computing, and mainframe modernization. Ability to evaluate new tools and frameworks and recommend adoption as appropriate.

This is a hybrid position. Expectation of days in office will be confirmed by your hiring manager.
Visa will accept applications for this role until at least June 22, 2026. If this is posting, then we are still accepting applications.
Qualifications
Basic Qualifications:
  • 10+ years of relevant work experience with a Bachelor's Degree or at least 7 years of work experience with an Advanced degree (e.g. Masters, MBA, JD, MD) or 4 years of work experience with a PhD, OR 13+ years of relevant work experience.

Preferred Qualifications:
  • 12 or more years of work experience with a Bachelor's Degree or 8-10 years of experience with an Advanced Degree (e.g. Masters, MBA, JD, MD) or 6+ years of work experience with a PhD.
  • Degree in computer science or equivalent practical experience in data processing.
  • 12-15 years of experience in support or development roles on IBM z/OS390, specifically with Connex Advantage clearing and settlement batch applications (required)
  • 12-15 years of support or development experience in COBOL/JCL (required)
  • 12-15 years of general knowledge in EFT settlement and transaction processing (required)
  • 12-15 years of support or development experience using FILE-AID (required)
  • 12-15 years of support or development experience with scheduling software such as ESP, Control-M, CA7 as well as Transmission Methods using FTP/SSL, FTP/SSH, NDM over SSL/TLS
  • Experience with configuration automation is preferred
  • Hands-on knowledge of Artificial Intelligence (AI) and Large Language Models (LLM), particularly in integrating AI-driven solutions with legacy mainframe environments. Familiarity with machine learning frameworks and their application to business process automation or data analytics is highly desirable.
  • REXX experience is a plus
  • ISPF Dialog Manager experience is a plus
  • Collaborative and team-oriented work style
  • Ability to work independently with minimal management oversight
  • Strong analytical skills; able to analyze and resolve complex and sometimes undefined problems
  • Demonstrated leadership abilities and robust mentoring skills
  • Capable of multitasking and managing time effectively while working independently
  • Excellent analytical and problem-solving capabilities
  • Strong verbal and written communication skills, including the ability to translate technical concepts for non-technical audiences

U.S. Applicants Only
The estimated salary range for this position is $163,500.00 to $ 261,500.00 USD per year, which may include potential sales incentive payments (if applicable). Salary may vary depending on job-related factors which may include knowledge, skills, experience, and location. In addition, this position may be eligible for bonus and equity.Visa has a comprehensive benefits package for which this position may be eligible that includes Medical, Dental, Vision, 401(k), FSA/HSA, Life Insurance, Paid Time Off, and Wellness Program.
Work Hours
Varies upon the needs of the department.
Travel Requirements
This position requires travel 5-10% of the time.
Mental/Physical Requirements
This position will be performed in an office setting. The position will require the incumbent to sit and stand at a desk, communicate in person and by telephone, frequently operate standard office equipment, such as telephones and computers.
Visa is an EEO Employer
Qualified applicants will receive consideration for employment without regard to race, color religion, sex, national origin, sexual orientation, gender identity, disability or protect veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with the EEOC guidelines and applicable local law.

What Visa employees say

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Benefits

Hours and flexibility

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About Visa

Sourced by ZipRecruiter

Visa is a global leader in digital payments, facilitating over 215 billion transactions annually across more than 200 countries and territories. Our mission is to connect the world through an innovative, reliable, and secure payments network, empowering individuals, businesses, and economies to thrive. When you become a part of Visa, you join a purpose-driven culture that values growth, embraces diversity, and recognizes the significance of your contributions. We believe in creating inclusive economies that uplift everyone, everywhere. Your work at Visa will directly impact billions of people worldwide, enabling access to financial services and shaping the future of money movement.

Industry

Finance and insurance

Company size

10,000+ Employees

Headquarters location

San Francisco, CA, US

Year founded

1958

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