Mainframe Developer Jobs in Colorado (NOW HIRING)

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 positionis $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.