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Julian J.
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Julian J.

CRO & Front-End Developer | A/B Testing, GA4/GTM, Shopify

I help e-commerce brands and agencies improve conversion, tracking, and front-end experiences. I specialize in A/B-test implementation, GA4 and Google Tag Manager tracking, Shopify, and front-end development using JavaScript, HTML, and CSS. With 15+ years of development experience and 180+ completed Upwork projects, I provide reliable ongoing support for experiments, customer-journey improvements, measurement, and production-safe site updates. I learn new technologies and platforms quickly, communicate clearly, deliver maintainable work, and focus on improvements that can be measured.

🇯🇲St. Andrew, Jamaica$33/hr100% JSS4.80 (141)Since Aug 2008
GlobeUpwork

Earnings and projects

MRR
$1.6k

Last 6 months ÷ 6

World#30,649 / 412k
🇯🇲Country#96 / 1,010
Revenue, last 30 days
$140

Last 6 months: $9.4k

World#87,693 / 412k
🇯🇲Country#244 / 1,010
Total earnings
$539k

Billed in all: $560k

World#2,343 / 412k
🇯🇲Country#2 / 1,010
Per project
$2.9k

$3.1k in the last 6 months

World#56,474 / 412k
🇯🇲Country#299 / 1,010
Projects, last 6 months
3
0% fixed100% hourly
World#66,479 / 412k
🇯🇲Country#74 / 1,010
Projects in all
183

Across 215 contracts

19% fixed81% hourly
World#11,504 / 412k
🇯🇲Country#9 / 1,010

Earnings, last 30 days

$560k+$140 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$559.3k$559.4k$559.5k$559.6kOct 8Oct 23Nov 7

Skill rankings: Top 6% in jQuery

Ranked by MRR among everyone on Upwork with the skill.

  1. #8Visual Website Optimizer44 freelancers · 🇯🇲 #1Top 18%
  2. #12Optimizely60 freelancers · 🇯🇲 #1Top 20%
  3. #208A/B Testing1,603 freelancers · 🇯🇲 #1Top 13%
  4. #432Google Tag Manager3,074 freelancers · 🇯🇲 #1Top 14%
  5. #553jQuery8,973 freelancers · 🇯🇲 #2Top 6%
  6. #666Conversion Rate Optimization5,165 freelancers · 🇯🇲 #1Top 13%
  7. #688Google Analytics6,285 freelancers · 🇯🇲 #2Top 11%
  8. #781Front-End Development8,892 freelancers · 🇯🇲 #2Top 9%