Zachary Guinn | Software Engineer

Education

2024

University of Texas at San Antonio

Masters of Science - Information Technology / Cyber Security

GPA 4.0

2014

Texas Tech University

Bachelor of Business - Management Information Systems

GPA 3.42

Exeperience

2025 - Present

H-E-B - Digital Security

Application Security Engineering

Senior Application Security Engineer
- Tracking down the usage of AWS Configs to help H-E-B cut costs in AWS security monitoring.
- Currently on-boarding and learning the team and space.

2023 - 2025

H-E-B - Enterprise Core Operations

Core Product Data

Senior Software Engineer
- Leading the creation of a new environment to upgrade and migrate 50 legacy apps, leveraging Linux administration and software engineering skills to enhance system sustainability.
- Acquiring expertise in core product data management.
- Mentoring junior developers.
- Participating in redesign of how nutritional data is retrieved, stored, and delivered at H-E-B.Enabled, developed, and delivered USAA’s “classic” development environment for Apple’s MacOS.
- Innovated on a new project to replace docker with an in-house containerization tool that saved USAA $2.5 million in licensing costs.

2018 - 2023

USAA - Platform Infrastructure

Developer Workstation

Software Engineer I
- Developed a tool integrating CyberArk test credentials into local dev environments, boosting developer efficiency by 40% for 500+ engineers.
- Led 6 interns in Summer 2021 to deliver an MVP for internal app-owner/user communication within 10 weeks.

2016 - 2018

USAA - Platform Infrastructure

Open Source Governance (OSF)

Software Developer II
- Co-led the retirement of the old OSF platform, deploying a JBoss/AngularJS-based solution to enhance enterprise-wide open-source adoption
- Enhanced OSF to cut request times from months to minutes while strengthening defenses against vulnerabilities, viral licenses, and obsolete software.

2014 - 2016

USAA - HR IT

HR Cloud, Workday Integration

- Contributed to the deployment of Workday at USAA.
- Lead the charitable giving integration with Benevity payroll deductions in Workday to facilitate a total self-serviced cloud-based solution for managing giving by the employee.
- Lead the Workday Employee ID integration with the target platform of Salesforce to cut costs and technical debt by using a cloud-to-cloud solution.

Fall Semester 2013 – Spring Semester 2014

Texas Tech University

Software Developer - Professor Research Assistant

- Developed a web app to gather metrics from 100+ participants in a genetic research study, driving the identification of a novel link between genetics and human choice behavior.