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Yael R.
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Yael R.

Frontend Developer | Shopify A/B Tests & E-commerce UI | JS & React

I implement frontend changes on live websites using HTML, CSS, and JavaScript, with practical experience on Shopify stores, including product pages, collection pages, buy-box layout, filters, variant selectors, and responsive adjustments across desktop, tablet, and mobile. I build and modify A/B test variants from briefs and existing codebases. I inspect live page structure, write maintainable JavaScript and CSS, and deliver work prepared for QA and production deployment. I also work with React, Node.js, Express, Prisma, PostgreSQL, Git, and REST APIs, including authentication, multilingual interfaces, and production deployment. I can deliver UI fixes, medium-scope Shopify and experiment work, and advanced full-stack features within a defined scope. I communicate clearly, follow specifications closely, and deliver on schedule.

🇲🇽Mexico City, Mexico$30/hr100% JSSSince Jan 2026

Earnings and projects

MRR
$855

Last 6 months ÷ 6

World#55,108 / 412k
🇲🇽Country#680 / 3,563
Revenue, last 30 days
$472

Last 6 months: $5.1k

Total earnings
$7k

Billed in all: $7.5k

World#226,856 / 412k
🇲🇽Country#2,079 / 3,563
Per project
$3.5k

$5.1k in the last 6 months

World#48,931 / 412k
🇲🇽Country#570 / 3,563
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇲🇽Country#955 / 3,563
Projects in all
2
50% fixed50% hourly
World#328,886 / 412k
🇲🇽Country#2,351 / 3,563

Earnings, last 30 days

$7.5k+$472 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$7,000$7,250$7,500$7,750Oct 8Oct 23Nov 7

Skill rankings: Top 10% in CSS 3

Ranked by MRR among everyone on Upwork with the skill.

  1. #133Postman842 freelancers · 🇲🇽 #3Top 16%
  2. #297A/B Testing1,603 freelancers · 🇲🇽 #4Top 19%
  3. #600ExpressJS5,651 freelancers · 🇲🇽 #3Top 11%
  4. #668Git5,766 freelancers · 🇲🇽 #5Top 12%
  5. #801REST API5,062 freelancers · 🇲🇽 #7Top 16%
  6. #863Ecommerce Website Development5,475 freelancers · 🇲🇽 #3Top 16%
  7. #958CSS 39,914 freelancers · 🇲🇽 #7Top 10%
  8. #1,031Conversion Rate Optimization5,165 freelancers · 🇲🇽 #4Top 20%