# 🇺🇸 Grex (Andrew Grexa) > Staff Software Engineer at Gusto Location: Wasilla, Alaska, United States Profile: https://flows.cv/grex ## Work Experience ### Staff Software Engineer, Platform @ Gusto Jan 2021 – Present | Alaska, United States Product Infrastructure - March 2021 - May 2022 Product Infrastructure, GraphQL - May 2022 - October 2023 Product Infrastructure, WebApp Architecture - October 2023 - Present ### Software Engineer, Product @ Gusto Jan 2019 – Jan 2021 | Denver Metropolitan Area Partners Mission - March 2019 - October 2020 Employee Lifecycle Mission - October 2020 - March 2021 ### Software Engineer + Team Lead @ ShapeShift Jan 2017 – Jan 2019 | Denver, Colorado • Team Lead (Jun 2017 - Jan 2019)
 • Contributed to the development of a new version of CoinCap, a cryptocurrency market price tool
 • Architected, launched, and grew the ShapeShift membership platform. Features included:
   • OAuth2 single-sign-on API for ShapeShift apps and integrators
   • Two-factor authentication
   • Account management tools
   • KYC forms, workflows, and a backend pipeline
   • Transaction history
   • Administrative reporting and management tools
   • GraphQL API for all major features, including account management, KYC, transaction history, and administrative tools
   • Granular feature flags
 • Introduced the engineering team to GraphQL and developed an initial architecture for a unified graph-based data model, with distributed maintenance and execution in mind
 • Embraced docker end-to-end for consistency between development and production environments
 * Contributed to an end-to-end CI/CD pipeline, opening the door to fully automated blue/green deployments
 • Spearheaded a company-wide common unit testing strategy with Jest
 • Developed a standards-based frontend framework using the latest of React + Webpack + Babel
 • Encouraged common linting and code style with ESLint + Prettier + StandardJS ### Engineering Lead @ mywedding.com Jan 2016 – Jan 2017 | Greater Denver Area Technologies: • Javascript: React, Redux, Webpack, Babel, Enzyme, Jasmine • PHP: Phalcon, PHPUnit, Mockery • Other: LESS Responsibilities + Accomplishments: • Spearheaded a complete rewrite (using ReactJS + Redux) of one of our vendor dashboard ### Software Engineer @ mywedding.com Jan 2015 – Jan 2017 | Greater Denver Area Technologies: • Javascript: React, Webpack, Babel, Backbone, Jasmine, Phantom, Grunt • PHP: Zend, Phalcon, PHPUnit, Mockery • Other: LESS, Drupal, WordPress Responsibilities + Accomplishments: • Successfully implemented optimizations by migrating complex database search queries to Apache SOLR, resulting in an average page load time decrease of over 30% for the ideas application • Created RESTful endpoints and implemented the front-end piece of the vendor review manager • Assisted in a refactor and launch of a white-labeled version of the mywedding travel application for MidwestLiving and Better Homes & Gardens • Helped to develop a plan to migrate core applications to React and ES2015 using Babel and Webpack while maintaining old modules written in ES5 • Implemented a framework for writing unit tests in ES2015 ### Web Designer + Developer @ UZU Media, LLC. Jan 2013 – Jan 2015 At UZU Media, I built websites on the open-source foundation of Drupal utilizing the latest in responsive, mobile-optimized design techniques. At this local startup, my input was necessary in all aspects of the software engineering process, from development of project proposals, to requirements analysis, to system design, to implementation and testing, to configuration and deployment on production web servers. Together, we proposed and realized web-based software systems for companies the size of small businesses to those that work on international fronts. Responsibilities + Accomplishments: • Designed and developed web applications with a small team using a variety of LAMP stack-based, open-source content management systems, including Drupal, WordPress, and Joomla • Implemented content and mobile first responsive websites, resulting in a great user experience across a variety of devices • Minimized page load times for complex web applications using advanced caching and compression techniques • Managed the installation and configuration of server software, including cPanel, MySQL, Apache, PHP, Git, Drush, and more • Worked in every step of the development lifecycle, from requirements analysis, to system design, to implementation and testing, to configuration and deployment • Produced blog posts on web design and the importance of creating web experiences optimized for users on all devices • Created project proposals for clients ranging from small businesses to multi-million dollar corporations ### Teaching Assistant @ University of Colorado Colorado Springs Jan 2013 – Jan 2014 At UCCS, I worked alongside a professor to grade a variety of assignments and projects in upper level undergraduate computer science courses, including a programming language concepts course and a compiler theory course. Grading these assignments required an ability to understand and analyze computer programs written in a variety of languages. Responsibilities: • Worked in two courses: Compiler Theory and Concepts of Programming Languages • Analyzed programs written in C, C++, LISP, Scheme, ML, and Prolog • Assessed grades for a variety of programming assignments and projects ### Worship Leader @ Chi Alpha Campus Ministries, USA Jan 2012 – Jan 2014 | colorado springs, colorado I play the acoustic guitar and sing for weekly gatherings of a campus ministry at UCCS. ## Education ### Master of Science (MS) in Computer Science Georgia Institute of Technology Jan 2014 – Jan 2016 ### Bachelor of Science (BS) in Computer Science University of Colorado Colorado Springs Jan 2010 – Jan 2014 ## Contact & Social - LinkedIn: https://linkedin.com/in/andrewgrexa - GitHub: http://github.com/grxy --- Source: https://flows.cv/grex JSON Resume: https://flows.cv/grex/resume.json Last updated: 2026-03-22