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Serhiy Z.
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Serhiy Z.

Full Stack Developer | React Developer | Node.js Developer

✅ 55+ completed projects · 10+ years of experience · 100% client satisfaction in different business areas. That speaks for me much better than any self-advertising. Hi 👋 I am a full stack developer, focused on building, improving, and scaling web-based products. My expertise is focused on web platforms and web applications, where I deliver the highest quality and long-term value. ‼️ I specialize in long-term, in-depth full stack projects that require real expertise - not quick fixes. Projects where attention to detail, information architecture, clean code, and technical ownership actually matter. 💡 Where my expertise brings the most value: ➤ I’m typically brought in as a full stack developer to design and build products end-to-end, with a structured, scalable codebase and a clear connection between frontend and backend. ➤ As a react developer, I focus on building complex dashboards, data-driven interfaces, and UI architecture that stays predictable and maintainable as the product grows. ➤ As a node.js developer, I develop APIs, integrations, and backend services that support business logic and ensure long-term system stability. 🚀 What you get working with an experienced engineer: ✅ As a full stack developer, I focus on building systems that remain scalable, maintainable, and easy to extend as your product grows. ✅ As a react developer, I create interfaces that are not only visually polished but also structured for long-term development - making future iterations faster and more predictable. ✅ As a node.js developer, I design backend services and APIs with stability and performance in mind, ensuring your platform can support real users, real traffic, and real business operations. 🛠️ My full stack developer tech stack: ✔ React ✔ Next.js ✔ Node.js ✔ Nest.js ✔ JavaScript ✔ TypeScript ✔ Tailwind ✔ React Native ✔ MongoDB ✔ PostgreSQL ✔ MySQL ✔ WordPress ✔ PHP ✔ Git, GitHub, GitLab, Bitbucket ✔ Jira, ClickUp, Trello, Asana 🧠 Professional background and technical focus: → As a web developer with strong experience as a wordpress developer, I build and evolve complex web platforms across different business domains. → My background as a javascript developer allows me to work confidently with modern frontend frameworks and structured UI architectures, while my experience as a backend developer helps me design reliable systems, APIs, and integrations that support real business logic → I also have some experience as a react native developer, which gives me a general understanding of cross-platform product architecture and performance considerations → My experience as a python developer and a mobile app developer is limited, and my primary focus is on web-based products and full stack web development 🤝 Why should you work with me? I guarantee: ➤ Attention to detail; ➤ Perform your project in a great way. ➤ Fast and professional work; ➤ Meeting deadlines; ➤ Fluent English; Want to get started now? Press the "Invite" button at the top of my profile, and let's chat! 🚀

🇺🇦Poltava, Ukraine$50/hr100% JSS5.00 (39)Since Jan 2019

Earnings and projects

MRR
$4.9k

Last 6 months ÷ 6

World#5,542 / 412k
🇺🇦Country#383 / 14.3k
Revenue, last 30 days
$4.5k

Last 6 months: $30k

World#6,748 / 412k
🇺🇦Country#452 / 14.3k
Total earnings
$161k

Billed in all: $170k

World#21,326 / 412k
🇺🇦Country#1,600 / 14.3k
Per project
$3.2k

$15k in the last 6 months

World#52,465 / 412k
🇺🇦Country#2,888 / 14.3k
Projects, last 6 months
2
0% fixed100% hourly
World#88,918 / 412k
🇺🇦Country#3,419 / 14.3k
Projects in all
50
28% fixed72% hourly
World#61,171 / 412k
🇺🇦Country#2,821 / 14.3k

Earnings, last 30 days

$170k+$4.5k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$165.0k$167.5k$170.0kOct 8Oct 23Nov 7

Skill rankings: Top 1% in WordPress

Ranked by MRR among everyone on Upwork with the skill.

  1. #123Tailwind CSS6,978 freelancers · 🇺🇦 #16Top 2%
  2. #134CSS 39,914 freelancers · 🇺🇦 #33Top 1%
  3. #136Git5,766 freelancers · 🇺🇦 #33Top 2%
  4. #171Angular6,816 freelancers · 🇺🇦 #24Top 3%
  5. #205API7,943 freelancers · 🇺🇦 #33Top 3%
  6. #210HTML514,581 freelancers · 🇺🇦 #43Top 1%
  7. #224Web Application9,341 freelancers · 🇺🇦 #34Top 2%
  8. #226Laravel12,549 freelancers · 🇺🇦 #32Top 2%