Yurii K.

Senior Frontend Developer | A/B Testing Specialist | 9 Years Experienc

Frontend developer with 9 years building high-performance web applications and implementing A/B testing solutions for conversion optimization agencies. Core expertise: - JavaScript/jQuery/ReactJS - A/B testing implementation (VWO, Optimizely, Google Optimize) - Translating Figma designs into pixel-perfect, responsive UIs - Performance optimization and accessibility standards I specialize in fast turnaround times for landing pages, UI components, and test variations. My 100% Job Success Score across 127+ projects reflects my commitment to quality and clear communication. Available for ongoing retainer work or project-based engagements.

🇺🇸Irvine, United States$45/hr100% JSS4.87 (110)Since Dec 2014

Earnings and projects

MRR

$0$0

Last 6 months ÷ 6

#65,238 / 412,246 / 412k

🇺🇸#12,155 / 62,088 / 62.1k

Revenue, last 30 days

$0$0

Total earnings

$59,995$60k

Billed in all: $60,334$60k

#65,238 / 412,246 / 412k

🇺🇸#12,155 / 62,088 / 62.1k

Per project

$472$472

Projects, last 6 months

#209,857 / 412,246 / 412k

🇺🇸#27,406 / 62,088 / 62.1k

Projects in all

127

Across 133 contracts

74% fixed26% hourly

#20,064 / 412,246 / 412k

🇺🇸#3,270 / 62,088 / 62.1k

$60.3kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch

Skills

DevOps Amazon Web Services JavaScript React CSS 3 HTML5 Gatsby.js PSD to HTML Web Development A/B Testing Conversion to HTML Terraform

Yurii K.

Earnings and projects

Earnings, last 30 days

Skills