Matt Jennings
Redmond, WA (near Seattle) • 206-854-6885
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(frontend developer with React)

(frontend developer with React)

Frontend Software Engineer Profile

  • Frontend Software Engineer with solid experience using React, TypeScript, JavaScript, HTML, CSS, and Sass to make heavily trafficked websites user-friendly and accessible.
  • Backend experience with PHP, WordPress, Node.js, and MySQL, including making database calls and consuming JSON API endpoints.
  • Built multiple websites and pages from scratch based on mockups from design tools like Figma, Photoshop, and Illustrator by collaborating with designers and other project managers.
  • Tested websites on the most popular devices and browsers, including real devices and services like, to ensure websites worked correctly for target users.

Technical Skills

  • Languages
    JavaScript, HTML, CSS, Sass, MySQL, Linux shell scripting, JSON, and ARIA.
  • API Integration
    Example: Manipulated GIFs from Giphy API (GitHub repo).
  • Libraries, Frameworks, and Databases
    Frontend: React, TypeScript, jQuery, Vanilla JS (no-framework JavaScript), and API integration (React and JS).
    Backend: Node.js, PHP, and MySQL.
  • Data analytics
    Google Tag Manager (GTM) and Google Analytics (GA).
  • Web Design/Development Software
    Design: Adobe Illustrator, Photoshop, Acrobat, and Figma.
    Development: Git; GitHub; Atlassian Confluence and JIRA; Salesforce; and AWS.
  • Operating Systems/Virtual Machines
    Mac, Windows, and Linux (Ubuntu).

Work Experience

Software Engineer
OneCare Media (now called Sleep Doctor)
Seattle, WA
July 2021 — June 2023

  • Did frontend development on multiple websites for OneCare using HTML, Sass/CSS, and JavaScript, such as an accessible accordion on multiple pages like (see “See More” button under “References” heading near the bottom).
  • Updated Google Tag Manager (GTM) and Google Analytics (GA) to track user actions, like loading a newsletter sign-up form (via Klaviyo) at the bottom of
  • Created automated tests using apps like Cypress. For example, I used Cypress to quickly confirm that many potential answers on a mattress finder survey were working as expected.

Senior Front End Web Developer Contractor
Redmond, WA
January 2021 — May 2021

  • Added new pages and features to the video game WordPress website, such as a countdown timer for an upcoming new video game preview, where I used Vanilla JavaScript and the Luxon time and dates npm package, PHP, CSS, and HTML.

WordPress Developer Contractor
Redmond, WA
August 2019 — December 2020

  • On, updated WordPress themes and plugins to add new features using PHP, JavaScript, HTML, and CSS.

WordPress Developer Contractor
Redmond, WA
February 2019 — August 2019

WordPress Developer Contractor
A Place for Mom
Seattle, WA
July 2018 — January 2019

  • Edited PHP, JavaScript, jQuery, HTML, and CSS to improve security and speed on WordPress sites hosted on AWS.

WordPress Developer Contractor
Redmond, WA
May 2018 — July 2018

  • Developed custom code for a redesigned website using frontend technologies (JavaScript, HTML, and CSS) and PHP.
  • Migrated existing WordPress blogs to a new web host to eventually launch

Web Producer Contractor
Redmond, WA
July 2016 — December 2017

  • Updated Microsoft Office ( website using HTML, CSS, JavaScript, and jQuery to ensure they met web accessibility standards.
  • Confirmed that web accessibility fixes worked on the website above by testing with screen readers (Windows Narrator, NVDA, and VoiceOver) on actual devices (Windows computers, Mac computers, and iPhones).

WordPress Developer Contractor
Metiza Magazine
Seattle, WA
February 2016 — April 2016

  • Developed WordPress Site for Metiza Magazine (it was an online magazine for teen girls, and now it’s offline) using JavaScript, jQuery, PHP, HTML, and CSS.

WordPress Developer Contractor
Seattle, WA
October 2015 — December 2015

  • Developed a WordPress site for Strong Against Cancer, a pediatric cancer fundraising site that Russell Wilson (NFL quarterback) used to promote Seattle Children’s Hospital (now offline).
  • Added features using JavaScript, jQuery, CSS, HTML, and PHP, such as fly-out boxes on the Get Involved page, while using designs from Adobe Illustrator, Photoshop, and InDesign.

Web Developer/Designer Freelancer
MP Ministry
Seattle, WA
November 2015 — December 2015

  • For (now offline), I created the logo and website design using Adobe Illustrator and Photoshop and developed the website from scratch using JavaScript, CSS, HTML, and PHP.


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