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john allen

About Me

For over a decade, I've helped businesses improve their online presence. Take a look around and let's see if we are a good fit to work together and build something great.

The Short Version

Results-Driven

Every engagement starts with your business goals in mind. More leads, better data, faster load times. Improving your digital presence doesn't have to be a guessing game.

Full-Stack Solutions

Front-end builds, analytics pipelines, CRM integrations. I'm the point of contact who understands how all the pieces fit together and can build the parts to fill the gaps.

Compliance & Accessibility

From accessibility audits with real-world assistive technology, to HIPAA-compliant analytics and tracking, I make sure your digital presence works for everyone and meets regulatory requirements.

Professional Experience

Fusion92

2023 – Present

Sr. Developer

  • Built and maintained large-scale CMS platforms for healthcare, finance, and retail clients
  • Conducted accessibility audits and led WCAG remediation across client portfolios
  • Optimized SEO performance and Core Web Vitals across production sites
  • Configured GTM, GA4, and conversion tracking across hundreds of domains in regulated healthcare environments
  • Integrated CRM platforms, call tracking, and third-party APIs at enterprise scale with HIPAA-compliant data flows

Morrison Agency

2022 – 2023

Sr. Front End Developer

  • Developed and maintained high-traffic marketing sites for national brands
  • Shipped projects across WordPress, Statamic, and CraftCMS environments
  • Engineered performance-focused front-end architecture for campaign landing pages
  • Produced high-volume email campaigns for national restaurant and hospitality brands

Mindvolt

2021 – 2022

Sr. Front End Developer

  • Executed full-site SEO audits and delivered technical remediation plans
  • Built custom CMS solutions for media and entertainment clients
  • Tuned page speed and rendering performance across legacy codebases

Website Genii

2020 – 2021

Front End Developer

  • Implemented analytics and conversion tracking for local business clients
  • Produced keyword research and content strategies to drive organic growth
  • Designed conversion-focused landing pages and lead capture flows

Hennessey Digital

2015 – 2020

Front End Developer → Sr. Developer

  • Advanced from individual contributor to managing the development team
  • Led large-scale CMS migrations for legal and professional services firms
  • Enforced WCAG accessibility compliance across dozens of client sites
  • Built internal tooling and standardized development workflows

Skills & Technologies

Frameworks & Libraries

React Vue Next.js Astro Node.js Laravel Tailwind CSS jQuery Express

CMS & Content Platforms

WordPress Sanity.io CraftCMS Statamic EpiServer

Languages

JavaScript (ES6+) TypeScript PHP SQL CSS/SASS

Ad Platforms & DSPs

Google Ads Meta Ads Microsoft Ads LinkedIn Ads Viant

Tracking, Analytics & BI

GTM GA4 Google Search Console Consent Mode v2 Snowflake Conversion APIs FreshPaint SEMRush Ahrefs

CRM & Marketing Tech

Salesforce HubSpot CallRail Invoca PatientPrism Zapier API Integrations Event-Driven Workflows

Have a Project in Mind?

New build, integration, or audit. Let's talk about what you need.

Get In Touch