Experience – Zachary Guinn | Software Engineer

H-E-B – Enterprise Core Operations – Core Product Data Services San Antonio, TX
Senior Software Engineer January 2023 – Present

Gaining comprehensive knowledge of the area known as core product data. This includes all store product data, warehouse data, vendor item data, and finally UPC data and how it all ties together.
Assisting in redesign of how nutritional data is retrieved, stored, and delivered at H-E-B.
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.
Designed a PostgreSQL data store for core data apps, integrating GitLab CI/CD to streamline DB changes and cut delivery time from an SLO of 3 days to a few hours, bypassing DB team requests.
Partnered with warehouse business and dev teams to design and deliver a warehouse-item API, integrating it into a new management tool
Assisted the Product Activation team with their effort in redesigning the tool used to bring in and activate new products.
Mentoring junior developers.

USAA – Platform Infrastructure – Developer Workstation / Developer ExperienceSan Antonio, TX
Software Engineer I November 2018 – January 2023

Developed a tool integrating CyberArk test credentials into local dev environments, boosting developer efficiency by 40% for 500+ engineers.
Innovated on a new project to replace docker with an in-house containerization tool that saved USAA $2.5 million in licensing costs.
Led 6 interns in Summer 2021 to deliver an MVP for internal app-owner/user communication within 10 weeks.
Enabled, developed, and delivered USAA’s “classic” development environment for Apple’s MacOS.
Application owner and maintainer for several developer tools used in the organization.
Developed and adapted in-house eclipse plugins for Mac development environment.
Devised a dockerized WebSphere JVM solution for MacOS, overcoming IBM’s lack of native support.
Refined various batch jobs to facilitate the “Classic on Mac” developers.
Taught 2 classes on how to get the most out of a developer workspace environment.

USAA – ITPS / Platform Infrastructure – Open Source Governance/Forum (OSF) San Antonio, TX
Software Developer II May 2016 – November 2018

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.
Driving developer engagement in OSF to provide a community-grown application and process.
Mentored and led 5 interns in the 2016 summer intern program. The team delivered MVP at the end of the program.

USAA – HR IT – HR Cloud, Workday Integration San Antonio, TX
Software Developer II November 2014 – September 2016

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.
Delivered HR Cloud to facilitate employee requests to HR that in turn, cut overhead and costs.
Mentored intern during the 2015 intern program.

USAA – Enterprise Integrated Solutions Group San Antonio, TX
Software Developer III August 2014 – November 2014

USAA – IT Internship Program San Antonio, TX
IT Intern May 2013 – August 2013

Learned UI Mobile development
Partnered with another intern to develop the critical task dashboard for Mainframe Automation

Texas Tech University – Professor ResearchLubbock, TX
Software Developer Fall Semester 2013 – Spring Semester 2014

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