William Cox
Verified Expert in Engineering
Full-stack Developer
Mesa, AZ, United States
Toptal member since August 4, 2021
Will taught himself JavaScript to build a CRM solution for a previous employer. The CRM prevented thousands of clients from slipping through their system. While this success saved the company millions of dollars, his greatest takeaway was his newfound love for programming. Seven years later, his motivation is the same–to build software that matters. Will aims to provide the highest quality product on the market while using the latest technologies in the industry.
Portfolio
Experience
Availability
Preferred Environment
MacOS, Visual Studio Code (VS Code), MySQL Workbench, Adobe, Postman, React, Redux, TypeScript, Webpack, Node.js
The most amazing...
...experience I've had as a professional was migrating a PHP monolithic application to a Node.js microservices architecture.
Work Experience
Senior Front-end Developer
Milliman, Inc. -- LTS
- Integrated AG Grid to replace their legacy component causing recurring bugs and re-renders. This isolated a lot of complex logic that wasn't fully unit tested.
- Centralized many components into a shared library accessible to all their front-end applications. Incorporated the Carbon component library into these components and provided visual automated testing with Storybook.
- Took time to ensure new and existing features had ample automated testing in each task. Used Jest to provide unit and integration testing and Playwright for E2E tests.
- Iteratively migrated MobX-dependent components to Redux. Added custom middleware to allow both data management libraries to communicate and sync state.
Senior Software Engineer
Lighthouse
- Architected and implemented a data feed ingestor and digestor. This back-end worker ingested updates from multiple third-party APIs with different properties and digested them into a headless REST API that fed our mobile and web apps.
- Improved operations by introducing better practices like testing (Jest + React Testing Library), using a component library that I architected, eliminating bloatware, and spending time working on tech debt each sprint.
- Brought design and engineering together to build a system that would foster a seamless transfer between the two groups. This was done through the use of Tailwind CSS, which enforced our shared design system.
Full-stack Developer
Hubsuite
- Built a Next.js web application with server-side rendering to display marketing KPIs for franchisees that were learning how to run a business.
- Wrote a RESTful API in Node.js with Express.js to serve live information from Google and Facebook Analytics.
- Developed a UI and UX matching the company's brand and feel.
- Incorporated a MySQL server to be the intermediary between third-party services and the front-end client.
Full-stack Developer
Textile Graphix
- Built a custom t-shirt design web application for bulk orders. Major clients included the Utah Jazz and universities.
- Developed a PMS for the Textile Graphix administrative team.
- Managed all aspects of technology in a startup environment.
Software Engineer
Career Step
- Rearchitected the legacy platform from PHP to Node.js to make it microservices-oriented.
- Managed four learning management systems, including a legacy system, a new system, and two third-party systems.
- Maintained 10+ Angular web apps, including a shopping cart, an admin app, and lead generation landing sites.
- Integrated Salesforce within Career Step's platform.
Junior Full-stack Developer
Devmountain
- Assisted Devmountain with migrating its database to Salesforce.
- Built a housing portal for use by management and tenants.
- Was hired to assist with teaching students after completing an intensive JavaScript certification.
PV Design Manager
Vivint Solar
- Established and managed six state offices comprising a team of 24 CAD technicians.
- Programmed a small CRM that saved the company’s most important offices from failure.
- Worked with state offices to create accurate drawings in compliance with electrical, building, and fire codes.
Experience
Marketing KPI Dashboard
https://www.williamcox.dev/hubsuiteTextile Graphix Sandbox
https://textilegraphix-sandbox.herokuapp.com/Electron Fortnite Ranking App
https://www.williamcox.dev/niteladderReact Native NBA Player Ranking App
https://www.williamcox.dev/dmvpEducation
Coursework Toward Bachelor's Degree in Computer Science
Brigham Young University - Provo, UT, USA
Certifications
JavaScript Certification
Devmountain
JavaScript Web Development
Credly
Skills
Libraries/APIs
Node.js, React.js, React.js, Socket.IO, Lodash, Moment.js, Styled-jsx, REST API, Chart.js, Authorize.Net, Stripe Development, Playwright, AG Grid, Carbon Design System
Tools
Git, Redux Thunk, Babel, Webpack, Adobe Software Development, Postman, Apache, Google Analytics, Sequelize, RTK Query, Nx
Languages
CSS3, HTML5, JavaScript, Sass, HTML, CSS, TypeScript, SCSS, SQL, C++, Java, PHP, Apex, Excel VBA
Frameworks
Next.js, Express.js, Electron.js, Tailwind CSS, Redux, Angular, Jest, React Native, Material UI
Paradigms
Unit Testing, E2E Testing, Microservices Development
Platforms
MacOS, Heroku, AWS, Salesforce Design, Azure
Storage
Amazon S3, JSON, MySQL, PostgreSQL, MongoDB, Elasticsearch
Industry Expertise
Web Development
Other
SSO Engineering, Single-page Applications (SPAs), APIs, Front-end, Back-end Developers, UX Development, UI Development, Learning Management Systems (LMS), CRM, Content Management Systems (CMS), Product Management, Magic Link Authentication, Styled-components, Storybook, UI Development, Full-stack, E-commerce marketing, Software Architecture
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