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John Mcgarrah Email & Phone Number

Founder, Senior Frontend Developer - onsite @Apple  at Critical Mass
Location: San Francisco, California, United States 11 work roles 1 school
1 work email found @mindspring.com 5 phones found area 707 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 5 phones

Work email l****@mindspring.com
Direct phone (707) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Founder, Senior Frontend Developer - onsite @Apple 
Location
San Francisco, California, United States

Who is John Mcgarrah? Overview

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Quick answer

John Mcgarrah is listed as Founder, Senior Frontend Developer - onsite @Apple  at Critical Mass, based in San Francisco, California, United States. AeroLeads shows a work email signal at mindspring.com, phone signal with area code 707, and a matched LinkedIn profile for John Mcgarrah.

John Mcgarrah previously worked as Senior Developer at Critical Mass and Founder at Seo Designs. John Mcgarrah holds Computer And Information Sciences, General from San Diego Mesa College.

Company email context

Email format at Critical Mass

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*@mindspring.com
68% confidence

AeroLeads found 1 current-domain work email signal for John Mcgarrah. Compare company email patterns before reaching out.

Profile bio

About John Mcgarrah

John Mcgarrah is a Founder, Senior Frontend Developer - onsite @Apple  at Critical Mass. He possess expertise in css, xhtml, jquery, javascript, seo and 12 more skills.

Listed skills include Css, Xhtml, Jquery, Javascript, and 13 others.

Current workplace

John Mcgarrah's current company

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Critical Mass
Critical Mass
Founder, Senior Frontend Developer - onsite @Apple 
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11 roles · 20 years

John Mcgarrah work experience

A career timeline built from the work history available for this profile.

Senior Developer

Current

Calgary, Alberta, CA

As a senior developer, I build and maintain a variety of content for global product launches on apple.com.

Nov 2024 - Present

Founder

Current

San Diego, CA, US

I design and develop websites and mobile applications using modern JavaScript, including native iOS and hybrid applications for iOS and Android. I handle the full application development lifecycle through App Store submissions. I specialize in headless and traditional CMS development, leveraging RESTful API's. I'm experienced with integrating the ChatGPT 4.

Jul 2013 - Present

Frontend Developer

Menlo Park, CA, US

As a developer at Meta (Reality Labs), I build and maintain a variety of content for global product launches on meta.com.

Feb 2024 - Nov 2024

Interactive Developer

Cupertino, California, US

As a developer in Apple's Marcom (Marketing Communications) group, I build and maintain a variety of content for global product launches on apple.com.

Feb 2020 - Oct 2023

Senior Software Engineer, Front End

Ehome Global Services

I oversaw the direction, coordination, implementation, and completion of software development projects, ensuring they were in line with the organization's strategy, commitments, and objectives. My responsibilities included developing and maintaining enterprise RESTful web applications with AngularJS within a Node.js environment, leveraging build and.

Jul 2018 - May 2019

Senior Front-End Developer

San Diego, CA, US

I was responsible for front-end development for costcoauto.com, operating within a Windows.NET/C# environment. My responsibilities encompassed the entire development lifecycle, including design and maintenance of the Costco Auto Program. I predominantly utilized front-end technologies such as Vanilla JavaScript, HTML, and CSS/SASS in my daily tasks..

Dec 2017 - Jul 2018

Senior Front-End Developer

San Diego, CA, US

I led the development and management of high profile corporate bank and advisor websites and locators, ensuring compliance with Web Content Accessibility Guidelines (WCAG 2.0). These included websites for Wells Fargo, Chase Bank, Met Life, and Bank of America Merrill Lynch. I managed all tasks from UX/design handoff to data integration, utilizing HTML5.

Mar 2016 - Jul 2018

Web Developer

Mountain View, California, US

My duties comprised of the development of web presentation layer HTML/JSP for the Quicken & TurboTax websites. I coded clean JavaScript, CSS, JSP/JSTL, AJAX, and HTML on a daily production basis. I collaborated with product engineers to expose new functionality on TTO(TurboTax Online) and Quicken websites. I enjoyed iterative, fast project turnarounds on.

Dec 2009 - Apr 2013

Ui Developer

San Diego, California, US

As a User Interface Developer for the largest social media network for athletes (with over 500,000 members), I develop and build interactive HTML pages and to implement and mold various HTML technologies and frameworks such as JQuery and AJAX to new and existing pages. Navigate and operate in Loops robust CMS module system for any tasks and email creation.

Sep 2009 - Dec 2009

Multimedia Developer

La Jolla, CA, US

Duties comprised of the design and build of web pages using front-end frameworks and technologies (HTML/CSS/JS). Additional page corrections to existing live websites (HTML or Flash based). Design and build of flash banners (ActionScript 2.0). Implemented Search Engine Optimization (SEO) tactics. Built out pages/graphics from PSD to slicing to coding..

Jul 2008 - Jul 2009

Website Maintenance Tech >> Production Assistant >> Flash Designer

San Diego, CA, US

For the first year and a half working at EII, my duties as a Production Assistant comprised of page additions and additional page corrections to existing live websites. Used language knowledge of HTML, XHTML, XML, PHP, ASP, JS and CSS. Developed and implemented Search Engine Optimization (SEO) tactics and keywords. Dropped all content into current.

2006 - 2008 ~2 yrs
1 education record

John Mcgarrah education

  • San Diego Mesa College
    San Diego Mesa College
    General
FAQ

Frequently asked questions about John Mcgarrah

Quick answers generated from the profile data available on this page.

What company does John Mcgarrah work for?

John Mcgarrah works for Critical Mass.

What is John Mcgarrah's role at Critical Mass?

John Mcgarrah is listed as Founder, Senior Frontend Developer - onsite @Apple  at Critical Mass.

What is John Mcgarrah's email address?

AeroLeads has found 1 work email signal at @mindspring.com for John Mcgarrah at Critical Mass.

What is John Mcgarrah's phone number?

AeroLeads has found 5 phone signal(s) with area code 707 for John Mcgarrah at Critical Mass.

Where is John Mcgarrah based?

John Mcgarrah is based in San Francisco, California, United States while working with Critical Mass.

What companies has John Mcgarrah worked for?

John Mcgarrah has worked for Critical Mass, Seo Designs, Meta, Apple, and Ehome Global Services.

How can I contact John Mcgarrah?

You can use AeroLeads to view verified contact signals for John Mcgarrah at Critical Mass, including work email, phone, and LinkedIn data when available.

What schools did John Mcgarrah attend?

John Mcgarrah holds Computer And Information Sciences, General from San Diego Mesa College.

What skills is John Mcgarrah known for?

John Mcgarrah is listed with skills including Css, Xhtml, Jquery, Javascript, Seo, Php, Web Design, and Flash.

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