SERGEJ B.
Senior WordPress Engineer | WooCommerce & Custom Development | React |
I help businesses build fast, scalable, and easy-to-manage WordPress websites that drive results. Over the past 7+ years, I've delivered custom WordPress solutions for startups, agencies, and growing businesses—from company websites to large WooCommerce stores and complex custom functionality. I don't just write code—I solve business problems. My goal is to deliver reliable solutions that are easy to maintain, perform well, and continue to support your business long after launch. Highlights ✅ 7+ years of WordPress development experience ✅ 58 completed projects with a 100% Job Success score ✅ Built and optimized 10+ WooCommerce stores ✅ Improved website speed by up to 30% through performance optimization and caching What I can help you with ✅ WordPress Development ✅ Custom WordPress themes ✅ Custom WordPress plugins ✅ Advanced Custom Fields (ACF) ✅ Gutenberg & Block development ✅ WordPress REST API ✅ WordPress Multisite ✅ Website maintenance & bug fixing ✅ WooCommerce Development ✅ Custom checkout experiences ✅ Payment gateway integrations (Stripe and others) ✅ Product management systems ✅ Subscription & membership functionality ✅ Store optimization & scaling ✅ Custom WooCommerce extensions ✅ Performance & Optimization ✅ Core Web Vitals optimization ✅ Website speed optimization ✅ Caching configuration ✅ Database optimization ✅ Security hardening ✅ SEO-friendly development ✅ Modern Web Development ✅ React & Next.js integration with WordPress ✅ Headless WordPress ✅ REST APIs ✅ MySQL & PostgreSQL ✅ AWS (EC2, S3, CloudFront, Route53) ✅ Docker & CI/CD Why clients work with me ✅ Clear and proactive communication ✅ Clean, maintainable, and well-documented code ✅ Reliable delivery and realistic timelines ✅ Long-term support after launch Many of my clients continue working with me for months or even years because I focus on building solutions that grow with their business—not quick fixes that need rebuilding later. If you're looking for a WordPress developer who can build custom functionality, optimize performance, and deliver production-ready websites, I'd be happy to discuss your project.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $104
Billed in all: $60,751$61k
$21 in the last 6 months
Across 65 contracts
Earnings, last 30 days
Skill rankings: Top 34% in JavaScript
Ranked by MRR among everyone on Upwork with the skill.
- #335Advanced Custom Fields Plugin555 freelancers · 🇺🇦 #32Top 60%🇺🇦#32 of 58
- #1,193WordPress Bug Fix2,262 freelancers · 🇺🇦 #55Top 53%🇺🇦#55 of 72
- #1,260WordPress Migration2,167 freelancers · 🇺🇦 #54Top 58%🇺🇦#54 of 74
- #2,125WordPress e-Commerce5,046 freelancers · 🇺🇦 #62Top 42%🇺🇦#62 of 118
- #2,207WordPress Theme4,985 freelancers · 🇺🇦 #135Top 44%🇺🇦#135 of 227
- #2,309REST API5,062 freelancers · 🇺🇦 #150Top 46%🇺🇦#150 of 346
- #3,806WordPress Development8,209 freelancers · 🇺🇦 #150Top 46%🇺🇦#150 of 263
- #5,609WooCommerce12,214 freelancers · 🇺🇦 #247Top 46%🇺🇦#247 of 514