Systems and Infrastructure Engineer III

Position Summary...

The Mainframe ISV Associate is responsible for supporting, maintaining, and enhancing independent software vendor products on the z/OS mainframe platform. This role involves collaborating with internal teams, vendors, and customers to ensure reliable operation, compliance, and integration of ISV solutions within Walmart's mainframe environment.

About the team:

The Independent Software Vendor (ISV) team manages critical third-party software essential for operations, security, data handling, scheduling, and connectivity. They oversee software setup, configuration, upgrades, and vendor support, ensuring consistent implementation aligned with enterprise standards. The team focuses on risk reduction by clarifying ownership, enforcing access controls, maintaining documentation, and meeting security and compliance requirements. Acting as a liaison among engineering, security, audit, and vendors, the ISV team enhances issue resolution, proactively addresses vulnerabilities, and supports audit readiness. Their work ensures stable, secure, and reliable software that protects critical systems and supports uninterrupted enterprise operations.

What you'll do...

· Install, configure, and maintain ISV products on z/OS mainframe systems.
· Support configuration, version control, and integration management to maintain system stability and seamless application connectivity.
· Analyze and resolve technical issues, escalating as necessary while documenting solutions and improvements.
· Manage onboarding, configuration, and upgrades of third-party software.
· Maintain vendor relationships and coordinate vendor support and licensing.
· Ensure solutions meet security, compliance, and audit requirements, coordinate remediation of vulnerabilities.
· Provide cross-team coordination, resolve issues and minimize downtime.
· Monitor and troubleshoot ISV software, collaborating with vendors and internal support teams for resolution.
· Ensure ISV products comply with Walmart's security, change management, and risk control standards, including formal request and approval processes for access provisioning and deprovisioning.
· Participate in quarterly access reviews and implement access modifications as required.
· Assist with change management processes, including testing, approval, and migration of ISV software.
· Requires knowledge of Infrastructure maintenance tools and methodologies Infrastructure maintenance plans and schedule Infrastructure performance metrics.
· Requires knowledge of Issue resolution techniques Escalation scale parameters
What you'll bring:
· Extensive experience with infrastructure maintenance and performance monitoring.
· Strong coding skills adhering to industry standards, with knowledge of languages such as JCL, REXX, Python, SQL, etc.
· Expertise in configuration, version, and release management processes.
· Ability to analyze and resolve technical issues independently for moderately complex projects.
· Knowledge of middleware integration and API-level connectivity across platforms.
· Understanding of infrastructure design principles, including scalability, disaster recovery, and security frameworks.
· Proven vendor management or ISV tool lifecycle experience (onboarding, upgrades, licensing, decommissioning).
· Excellent troubleshooting and incident response skills; able to drive cross‑team coordination.
· Familiarity with mainframe security, access control, and change management standards.
· Experience with z/OS mainframe environments and ISV products.
· Strong troubleshooting and communication skills.
· Ability to work collaboratively with vendors and internal teams.
At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more.
You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable.
For information about PTO, see https://one.walmart.com/notices.
Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates. Tuition, books, and fees are completely paid for by Walmart.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms.
For information about benefits and eligibility, see One.Walmart.

The annual salary range for this position is $80,000.00 - $155,000.00
Additional compensation includes annual or quarterly performance bonuses.
Additional compensation for certain positions may also include :
- Stock

ㅤ

ㅤ

ㅤ

ㅤ

‎

Minimum Qualifications...

Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.

Option 1: Bachelor's degree in computer science, computer engineering, information systems, information technology, or related area and 2 years’experience in technology infrastructure engineering across areas such as compute, storage, network, mobility or virtualization-related technologies.
Option 2: 3 years’ experience in technology infrastructure engineering across areas such as compute, storage, network, mobility or virtualization relatedtechnologies.

Preferred Qualifications...

Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.

Master’s degree in computer science, computer engineering, information systems, information technology, or related area, We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly. The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart’s accessibility standards and guidelines for supporting an inclusive culture.

Primary Location...

805 Se Moberly Ln., Bentonville, AR 72712, United States of AmericaWalmart and its subsidiaries are committed to maintaining a drug-free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. This policy applies to all employees and aims to create a safe and productive work environment.

For more details click Job Post.