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Vladislav S.
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Vladislav S.

React Developer | Full Stack Developer React Node & Frontend React

🔥 Driving Real Results with React & Full Stack Development 🔥 🏆 10+ years of experience 🚀 60+ completed projects 💸 $10M+ generated for clients ⭐ Apps with 24,000+ active users I’m a Senior Full Stack React Developer with 10+ years of experience building scalable web applications. As a React / Next.js / Node.js develoepr I’ve delivered 60+ projects across SaaS, marketplaces, healthcare, fintech, and real estate. Working as a React Node.js Developer, I’ve launched 50+ production systems with 99.9% uptime, handling thousands of users and millions of requests. I’ve helped clients generate $12M+ and reduce time-to-market by 30–40%. 🚀 Full Stack React, MERN Stack & Backend Development I work daily as a Full Stack Developer, Full Stack React Developer, and React Node.js Developer, using React.js, Frontend React, Next.js (Nextjs), and scalable backend systems. My core expertise includes building applications with the MERN stack, delivering end-to-end solutions as a Full Stack Developer and React Node.js Developer. I’ve implemented multiple products using the MERN stack, combining MongoDB, Express, React.js, and Node.js. As a Full Stack Developer and React Node.js Developer, I focus on: ⚡ Improving performance (LCP/TTI) by 2–3x 📈 Increasing conversions by 30–35% 🚀 Scaling apps to 120K+ users 🧩 Building reliable backend systems My experience with the MERN stack, React.js, and backend architecture allows me to deliver fast and scalable solutions as a Full Stack Developer. 🧠 Backend, Databases & Supabase As a Full Stack Developer and React Node.js Developer, I build APIs, dashboards, and real-time systems. I work with SQL, PostgreSQL, MySQL, and MongoDB, designing efficient schemas and scalable data layers. My experience with MongoDB includes building high-load systems within the MERN stack ecosystem. I also use Supabase / Postgres to create modern backend systems with authentication, RLS, edge functions and real-time functionality. Built systems using MongoDB, PostgreSQL, and MySQL Processed 50K–300K events/day using Supabase Reduced backend costs by 50% with Supabase Improved delivery speed by 40% As a Full Stack Developer and React Node.js Developer, I ensure backend performance, scalability, and maintainability. 🎯 Frontend React & Next.js With 10+ years as a React Developer, React.js Developer, and Frontend React Developer, I build high-performance interfaces using React.js and Next.js (Nextjs). As a Full Stack Developer and React Node.js Developer, I connect frontend systems with scalable backend logic. ⚡ 50% faster load times 📉 Reduced bounce rates by 25–30% 📈 Increased engagement by 40–45% 📱 React Native & Cross-Platform As a React Native Developer, and alongside my work as a Full Stack Developer and React Node.js Developer, I build mobile apps connected to backend systems powered by MongoDB, Supabase, Firebase and SQL databases. 📲 12+ apps shipped 👥 130K+ users supported 💳 Payments, SaaS & PHP / Laravel Systems As a Full Stack Developer and React Node.js Developer, I build SaaS platforms, marketplaces, and payment systems. I also have solid experience with PHP, developing and maintaining backend systems and APIs. As a Full Stack Developer, I’ve worked on multiple projects using PHP alongside React.js and modern stacks. 💸 $10M+ revenue generated 📉 Reduced checkout drop-offs by 20–30% 📈 Increased AOV by 20–25% My experience includes integrating PHP / Laravel systems into modern architectures and migrating legacy PHP backends to MERN stack and Supabase solutions. ⚙️ Additional Expertise 30+ projects as a Full Stack Developer and Full Stack React Developer Strong experience as a React Node.js Developer Deep knowledge of SQL, PostgreSQL, MySQL, and MongoDB Hands-on work with the MERN stack across multiple production systems Experience with Supabase, Supabase Postgres, and real-time systems AI integrations (OpenAI, ChatGPT) as a React Developer Experience with PHP, Vue, and Svelte Built dashboards, PWAs, and SaaS platforms as a Full Stack Developer Improved release cycles by 25% and reduced bugs by 30% 🤝 Why Work With Me Reliable Web Developer with proven results Experienced React Node.js Developer and MERN stack specialist Strong expertise in React.js, Next.js, and backend systems Solid experience with MongoDB, SQL, PostgreSQL, MySQL, Supabase, and PHP Focus on business impact, scalability, and performance If you're looking for a Full Stack Developer, Full Stack React Developer, React Node.js Developer, or MERN stack developer with strong experience in MongoDB, Supabase, SQL, PostgreSQL, MySQL, and PHP / Laravel — let’s connect. 👉 Click "Invite" or "Hire" and tell me about your project.

🇺🇦Zaporizhzhya, Ukraine$30/hr100% JSS5.00 (28)Since Jan 2019

Earnings and projects

MRR
$1.1k

Last 6 months ÷ 6

World#42,551 / 412k
🇺🇦Country#1,955 / 14.3k
Revenue, last 30 days
$0

Last 6 months: $6.9k

Total earnings
$217k

Billed in all: $223k

World#13,509 / 412k
🇺🇦Country#1,093 / 14.3k
Per project
$7k

$2.3k in the last 6 months

World#24,356 / 412k
🇺🇦Country#1,627 / 14.3k
Projects, last 6 months
3
33% fixed67% hourly
World#66,481 / 412k
🇺🇦Country#2,681 / 14.3k
Projects in all
31

Across 42 contracts

2% fixed98% hourly
World#94,779 / 412k
🇺🇦Country#4,152 / 14.3k

Earnings, last 30 days

$223kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$220.0k$222.5k$225.0k$227.5kOct 8Oct 23Nov 7

Skill rankings: Top 8% in CSS 3

Ranked by MRR among everyone on Upwork with the skill.

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  2. #502ExpressJS5,651 freelancers · 🇺🇦 #48Top 9%
  3. #566Back-End Development4,183 freelancers · 🇺🇦 #61Top 14%
  4. #745Firebase6,978 freelancers · 🇺🇦 #83Top 11%
  5. #779CSS 39,914 freelancers · 🇺🇦 #130Top 8%
  6. #802Supabase4,116 freelancers · 🇺🇦 #51Top 19%
  7. #975Front-End Development8,892 freelancers · 🇺🇦 #122Top 11%
  8. #1,080Mobile App Development8,511 freelancers · 🇺🇦 #111Top 13%