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Analytical full stack developer with demonstrated expertise in Drupal, WordPress, PHP, CSS/SASS, JavaScript, and jQuery. Skilled in site architecture, theme/module development, optimization, testing, and debugging. Proven leader with strong communication, problem-solving, mentorship, and teamwork experience, coordinating cross-functional efforts and driving measurable performance and usability improvements through modern front-end patterns, SEO/AEO enhancements, and robust CI/CD practices.…Analytical full stack developer with demonstrated expertise in Drupal, WordPress, PHP, CSS/SASS, JavaScript, and jQuery. Skilled in site architecture, theme/module development, optimization, testing, and debugging. Proven leader with strong communication, problem-solving, mentorship, and teamwork experience, coordinating cross-functional efforts and driving measurable performance and usability improvements through modern front-end patterns, SEO/AEO enhancements, and robust CI/CD practices.

Don Knieriem

Full Stack Developer, Web Developer, Front-End Developer, +2

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Analytical full stack developer with demonstrated expertise in Drupal, WordPress, PHP, CSS/SASS, JavaScript, and jQuery. Skilled in site architecture, theme/module development, optimization, testing, and debugging. Proven leader with strong communication, problem-solving, mentorship, and teamwork experience, coordinating cross-functional efforts and driving measurable performance and usability improvements through modern front-end patterns, SEO/AEO enhancements, and robust CI/CD practices.…Analytical full stack developer with demonstrated expertise in Drupal, WordPress, PHP, CSS/SASS, JavaScript, and jQuery. Skilled in site architecture, theme/module development, optimization, testing, and debugging. Proven leader with strong communication, problem-solving, mentorship, and teamwork experience, coordinating cross-functional efforts and driving measurable performance and usability improvements through modern front-end patterns, SEO/AEO enhancements, and robust CI/CD practices.

Available to hire

Analytical full stack developer with demonstrated expertise in Drupal, WordPress, PHP, CSS/SASS, JavaScript, and jQuery. Skilled in site architecture, theme/module development, optimization, testing, and debugging.

Proven leader with strong communication, problem-solving, mentorship, and teamwork experience, coordinating cross-functional efforts and driving measurable performance and usability improvements through modern front-end patterns, SEO/AEO enhancements, and robust CI/CD practices.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Work Experience

Contract Web Engineer at Docker

September 1, 2024 - Present

Coordinated a rebuild of a WordPress site serving 9M monthly visitors. Translated requirements into milestones, coordinated a development team, collaborated with designers, and reviewed contributed code. Mentored a junior developer and instituted best-practice code quality checks. Reduced theme size by 50% (65MB to 32.5MB) by removing third-party dependencies and using vanilla JavaScript with atomic design principles. Optimized page size (homepage load 29% improvement, 7.72MB to 5.45MB) by creating custom WordPress blocks and improved performance/usability via caching strategy for a Lighthouse score increase of 19 points. Built a custom content search API using async JavaScript and improved SEO/AEO using structured data (JSON-LD, Open Graph) and semantic HTML.

Senior Web Engineer at New Relic

November 1, 2022 - April 30, 2024

Led front-end development for a Drupal site with 1.5M monthly visitors and 2.5M monthly page views. Improved performance by reducing page size 30–40% sitewide using custom responsive image setup. Delivered new features with focus on usability, accessibility, and reusability. Identified and led migrations from jQuery and SvelteKit dependencies to vanilla JavaScript. Developed and integrated custom Google Analytics and Segment tracking for video playback. Refactored hard-coded theme styles into reusable Tailwind plugins. Led major Drupal/PHP version upgrades and modernized the build pipeline from Webpack to Parcel, integrating CI/CD with GitHub and Docker. Participated in code reviews, QA, Agile development, and testing using Lighthouse, Cypress, Xdebug, and analytics tooling. Supported CRO efforts by implementing VWO and Google Tag Manager tests with JavaScript and CSS.

Senior Front-End Developer at TIBCO Software

February 1, 2021 - August 31, 2022

Managed a new front-end team for TIBCO Drupal and WordPress sites, including regular one-on-ones with direct reports. Led a homepage overhaul and built interactive web components that drove increased sales conversions. Created and launched multiple event websites. Designed an advanced navigation module using Drupal AJAX. Reduced page load times with a Lighthouse score improvement of 30 points by rebuilding templates from scratch and implementing critical CSS. Improved new-customer onboarding by reducing lead generation time 75% through pre-filled forms backed by third-party data integrations.

Web Developer at Temple University

December 31, 2018 - January 30, 2021

Developed WordPress sites, including major WordPress/PHP version upgrades and host migration. Built WordPress themes and plugins. Maintained development and style guide documentation using StorybookJS and GitBook. Built a front-end lead conversion system integrating with Salesforce, HubSpot, and Marketo. Created a reusable landing page system for ad campaigns.

Freelance Web Developer at Freelance

April 30, 2016 - Present

Worked independently and with agencies to deliver web solutions for clients. Developed WordPress, Drupal, and ExpressionEngine sites, collaborating with agency teams and clients to ship results quickly. Maintained design integrity and ensured cross-browser compatibility. Submitted pull requests and contributed bug fixes to Drupal modules.