⭐️Founders come to me after a freelancer disappeared mid-project. I finish what they started, and I don't ghost.
💡 130+ production-grade products shipped (SaaS, MVPs, AI systems, marketplaces)
💰 $16.5M+ revenue generated for client products
👥 160K+ active users powered by systems I built
⚡ 1M+ API requests/month at 99.9% uptime
🚀 MVP → production in 2–6 weeks, built to scale from day one
🔥 WHAT I DO
Building a SaaS, MVP, or AI-powered product? You need a Full Stack Developer who owns React frontend and Node.js backend end-to-end, ships in weeks (not quarters), and writes code your future team won't throw away. That's what I do.
Early-stage MVP, productionizing a prototype, scaling a live SaaS platform, or rebuilding a legacy codebase — I've done it on React, Next.js, Node.js, TypeScript, Supabase, PostgreSQL, AWS for over 10+ years.
🔥 ROLES I TAKE ON (10+ YEARS EXPERIENCE)
✔ Full Stack Developer / Full Stack Engineer — 40+ end-to-end SaaS platforms (React + Node.js), 10+ years
✔ Frontend Developer / Front-End Developer — 30+ production UI builds, 10+ years
✔ React Developer / React.js / ReactJS Developer — scalable React apps since 2015, 10+ years
✔ Node.js / NodeJS Developer / Backend Developer — 25+ APIs, 1M+ req/month, 10+ years
✔ Vue.js Developer / Nuxt.js Developer — 8+ Vue projects, 8+ years
✔ Next.js Developer / NextJS Developer — 15+ SSR/SSG SaaS platforms, 7+ years
✔ TypeScript Developer / JavaScript Developer — 50+ typed and untyped JS codebases, 10+ years
✔ SaaS Developer / Web App Developer — MVP to scale, 10+ years
✔ Lead Frontend Engineer / Senior Full Stack Engineer — led 18+ projects
🔥 INDUSTRIES I SERVE
⚖️ LegalTech founders — 6+ Case Management Systems, Document Workflows, Client Portals, Compliance SaaS
🏥 Healthcare & MedTech — 8+ Patient Platforms, Telehealth, HIPAA-Compliant data, Clinic Management SaaS
📦 Logistics & supply chain — 5+ Logistics Platforms, real-time tracking (sea/air/truck), Project44, INTTRA, EDI
🛒 Marketplace & e-commerce — 15+ Multi-Vendor Marketplaces, B2B & Two-Sided Marketplace, Stripe, bidding, complex search
🤖 AI startups — 12+ AI-Powered products: OpenAI / Claude API / LLM, RAG Chatbots, AI Agent Platforms, vector DBs, FastAPI, browser extensions
📝 No-code & enterprise SaaS — 10+ Form Builders, Admin Dashboards, Internal Tools, Microservices, Multi-tenant
🌐 Media, AdTech & publishing — 6+ Publisher Platforms, CMS, payment gateways, Analytics Dashboards
🏠 Real estate & PropTech — Property Listings, Bidding & Auction systems, Agent Dashboards
💰 FinTech founders — Stripe Connect, subscription billing, multi-currency, KYC, Fintech MVP
📚 EdTech — course delivery, student dashboards, progress tracking, live sessions
🔥 RESULTS I DELIVER
✔ MVP → production in 2–6 weeks, 35% fewer bugs, 5–8 weeks shorter delivery cycle
✔ Frontend: LCP under 1.5s, Lighthouse 90+, bundle size cut 40%, 18–27% engagement uplift
✔ Backend: 1M+ API requests/month, 99.9% uptime, 40–60% lower latency
✔ Database: 3–5x faster response, 70% less DB load; 90% faster workflows, 65% fewer back-office actions
✔ +30% conversion on React / Next.js apps; 15–22% better marketplace lead quality
✔ 15,000+ shipment operations/month, 2,400+ completed orders, 30,000+ healthcare users
✔ 20+ SaaS MVPs launched, 47% fewer bugs after legacy modernization
🔥 HOW I WORK
I think like a product engineer, not a code-monkey. Before writing a line, I align on the business outcome — who the user is, what they pay for, where the product needs to be in 6 months. Then I ship in weekly demos and stay available on Slack / Telegram for fast turnaround.
Typical cycle:
1️⃣ Discovery & scoping (2–3 days) — define MVP boundary
2️⃣ Architecture — clean foundations, scalable schema, right stack
3️⃣ Weekly sprints with demos — steady progress every week
4️⃣ Production launch — CI/CD, monitoring, error tracking
5️⃣ Post-launch support — most clients keep me on
🔥 TECH STACK
Frontend: React.js, ReactJS, React Hooks, Next.js, NextJS, Vue.js, Nuxt.js, TypeScript, Redux, Zustand, Tailwind CSS, shadcn/ui
Backend: Node.js, NodeJS, Express.js, NestJS, Python, FastAPI, REST, GraphQL, WebSockets
Database: PostgreSQL, Supabase, MongoDB, MySQL, Redis, Prisma
Supabase: Auth, Row-Level Security, Edge Functions, Realtime, Storage
AWS: Lambda, S3, RDS, EC2, CloudFront, API Gateway, SQS, SNS, Cognito, ECS
Other cloud: Firebase, Vercel, Netlify, Cloudflare
AI / ML: OpenAI API, Claude API, LangChain, RAG, RAG Chatbot, AI Agent, Computer Vision
Payments: Stripe Subscriptions, Stripe Connect, Stripe Checkout, Stripe Billing, PayPal
Integrations: Twilio, SendGrid, Resend, Slack API, Telegram Bot API, EDI, Project44
Mobile: React Native, React Native Expo, iOS / Android
🚀 Building a SaaS, MVP, marketplace, or AI-powered product? Click "Invite" or "Hire" and send the brief.
Nuxt.js
JavaScript
HTML
React
CSS
HTML5
Node.js
Bootstrap
jQuery
CSS 3
Vue.js
Front-End Development
Next.js
MongoDB
Redux
TypeScript
React Native
React Bootstrap
Python
Software Development
Roman Z.
Lviv, Ukraine
$40/hr
5.0
16 jobs
⭐ You get a developer who ships production-ready code, replies within hours, and doesn't disappear mid-project. Simple as that.
✅ Top Rated | 100% Job Success Score
💡 100+ projects delivered over 6 years of commercial JavaScript development
⏱ 23 contracts closed in the last 12 months alone - 736+ hours on Upwork plus direct long-term work
⏱ 736+ hours on Upwork alone, plus long-term direct contracts
⚡ Every production site I ship scores Lighthouse 90+ - check my live projects yourself
🔥 WHAT I DO
You're building a SaaS, MVP or a web product. You need a developer who can own the frontend end-to-end (Vue/Nuxt or React/Next), extend it to full stack with NestJS when needed, and write code your future team won't throw away. That's what I do.
🔥 ROLES I TAKE ON
✔ Vue.js / Nuxt 3 Developer - my core stack since 2020
✔ React / Next.js Developer - App Router, SSR/SSG, TypeScript
✔ Full Stack Developer - NestJS, PostgreSQL, REST APIs
✔ Front End Developer - Figma to pixel-perfect responsive UI
✔ AI Integration - OpenAI / Claude API, chatbots, document processing
🔥 SELECTED PROJECTS
⚖ BigLeap - multi-sided immigration SaaS serving lawyers and their clients: case management, time tracking, payments, messaging (Nuxt, TypeScript, Pinia)
🐎 Equinova - B2B equine health SaaS with AI document processing on Claude API (Next.js, Supabase)
🏥 Big Leap Health - clinic-patient matching application
🏖 Bonny Moon - beach club website in the Cayman Islands: bookings, SSR, SEO (Nuxt 3)
📄 DemToes - content marketplace with strict legal-content fidelity requirements
🔥 RESULTS I DELIVER
✔ 100+ projects over 6 years, 23 in the last 12 months - 14 on Upwork, 9 through direct contracts
✔ 100% Job Success Score - every single engagement rated successfully
✔ Lighthouse 90+ on every production site - performance and SEO are part of my definition of done, not an afterthought
✔ Clients come back - practically every project turns into repeat or long-term work
🔥 HOW I WORK
I think in terms of product outcomes, not tickets. Before writing code I align on what the feature should achieve, then ship in small reviewable increments with regular updates. Available on Slack / Telegram, fast turnaround, no disappearing mid-project.
🔥 TECH STACK
Frontend: Vue 3, Nuxt 3, React, Next.js, TypeScript, Pinia, Zustand, Tailwind CSS
Backend: Node.js, NestJS, REST, PostgreSQL, Prisma, Supabase, Directus
AI: OpenAI API, Claude API, LLM integration
Infra: AWS, DigitalOcean, Vercel, CI/CD
Tools: Git, Figma, Cursor, Claude Code
🚀 Building a SaaS, MVP or AI-powered product? Send me the brief - I'll reply with a concrete plan, not a template.
Nuxt.js
JavaScript
Vue.js
React
Next.js
Front-End Development
Back-End Development
Node.js
HTML
CSS 3
HTML5
TypeScript
Tailwind CSS
CSS
jQuery
Web Development
GraphQL
Redux
MongoDB
React Native
Maksym M.
Kharkiv, Ukraine
$48/hr
5.0
58 jobs
🚀 Web & Mobile Development | SPA | SSR | E-Commerce | API integration| Dashboards | Multi-step Forms | Extensions
💡 I build high-quality, modern, and responsive web & mobile applications tailored to your business needs:
✅ Single Page Applications (SPA)
✅ E-Commerce websites
✅ Custom dashboards & admin panels
✅ Multi-step forms & wizards
✅ Browser extensions
✅ Hybrid mobile apps with Capacitor (iOS & Android)
✅ Pixel-perfect Figma/XD to code
🌱 100% Job Success | 💪 Top Rated Freelancer
🧠 Self-motivated, fast-working, and results-driven — I focus on writing clean, maintainable code and delivering projects on time.
🛠 Core stack:
Vue.js, Nuxt.js, TailwindCSS, TypeScript, SCSS, Ant Design, Vuetify, Bootstrap
🔧 Also experienced with:
React.js, Next.js, Node.js, Express, Capacitor
📩 Let’s talk — message me to get your project started!
Nuxt.js
JavaScript
Vue.js
React
Tailwind CSS
Next.js
TypeScript
Web Development
Strapi
Ihor B.
Kharkov, Ukraine
$40/hr
4.9
83 jobs
👋 I'm a Full Stack Developer with 10+ years of experience as a Java and PHP software engineer. Over the past 9 years, I've also focused on frontend frameworks, working extensively with Spring, Laravel Yii Vue and React Prior to that, I gained valuable experience with CMS systems like Opencart and WordPress. 🚀
I've had the opportunity to collaborate with both small and large international teams (10+ members) and have developed expertise in project management tools such as Jira, Trello, and VCS.
Additionally, I'm proficient in Linux systems and CI/CD processes. Throughout my career, I've worked on high-load systems, built server-side high-capacity applications, and developed complex multi-platform user interfaces.👍
💪 My technical Full Stack Developer skill set includes:
➜ Java Kotlin and PHP : 10+ years of experience with PHP ( Laravel Yii Symfony Zend ) and Java (Core/EE Vaadin Spring )
➜ Frontend Frameworks: Experience with Vue.js React Nuxt.js Next.js Vuetify and Cordova specializing in creating responsive and usable interfaces.
➜ JavaScript and TypeScript: Strong skills in JavaScript and TypeScript to create dynamic and efficient applications.
➜ Backend Development: Experience with Node.js Express.js and AdonisJS to create scalable server-side solutions.
➜ Databases: Knowledge of MySQL PostgreSQL Redis MongoDB and others, optimizing database performance.
➜ API development and integration: Extensive experience in creating and integrating RESTful and GraphQL APIs, including third-party services such as Stripe and Twilio, etc.
➜ AI Integration: Hands-on experience integrating AI-based features.
➜ DevOps and tools: Proficient in Git, Docker, Jenkins, and Jira, ensuring CI/CD and project management runs smoothly.
📌 When you choose to work with me ( Experienced Full-Stack Developer ), you’re partnering with a developer who not only understands your goals but is also dedicated to delivering outstanding solutions. I place a strong emphasis on customer satisfaction, and my commitment to engineering excellence ensures that I create value at every stage of the project.🚀
🏆 Our experience in Full-Stack development :
✔️ 10+ years of experience in web and mobile Full Stack development
✔️ 250+ projects for startups, SaaS platforms E-commerce + Marketplace, Booking Platforms, MVPs, AI chatbots / AI solutions
✔️ 22,574+ hours worked on Upwork
✔️ 42+ countries we operate in providing top-notch web development solutions
✔️ AI & automation ready - experience with AI chatbots, OpenAI integrations, and content automation
✔️ From idea to launch - UI/UX design, frontend & backend development, QA, and post-launch support
✔️ Flexible and client-focused - personalized approach, clear communication, and full dedication to results
📌Full-Stack Development AI & Chatbot Development Expertise ( Full-Stack Developer )
🔸 Extensive experience in building AI-powered solutions, including custom GPT-based chatbots, document analysis tools, and intelligent automation systems
🔸 Integration with OpenAI API (GPT-3.5/4) for chatbot creation, semantic search, text summarization, language translation, and prompt-driven workflows
🔸 LangChain & Prompt Engineering – building multi-step, context-aware interactions for advanced conversational agents
🔸 Real-world use cases: Legal & medical document parsing, customer support bots, smart assistants for booking/e-commerce platforms
🔸 Secure & scalable architecture – including role-based access control, user session management, and protected endpoints for AI services
🔸 Hybrid solutions – AI integrated into full-stack applications (React / Vue + Node.js / NestJS) with real-time data flow and third-party APIs (Twilio, Slack, Stripe, CRM systems)
🔸 Cloud-ready & optimized – deployed via AWS, Vercel, Supabase, with performance monitoring and cost-effective API usage strategies
🔸 100% rapid prototyping to production – from PoC to polished tools with clean UI/UX and user-centric flow
🔸 Continuous collaboration with product teams to refine AI logic and ensure high relevance and response quality
🔸 AI Tools I Use- Botpress / Lovable / Cursor Bolt.new / Deepgram / n8n / Make / Zapier
📌 Full-Stack Web & SaaS / E-commerce Development Expertise ( Full-Stack Developer )
🔹 10+ years of hands-on experience in building scalable web & mobile applications
🔹 250+ completed projects - from MVP to production-ready SaaS platforms
🔹 Full product cycle: from idea validation and prototyping to launch and post-release support
🔹 Modern stack: Vue \ Nuxt, React \ Next.js Node.js JavaScript TypeScript, NestJS, Node js PostgreSQL, MongoDB, AWS, Supabase & more
🔹 AI Integration: OpenAI, LangChain, chatbot development, prompt engineering, GPT-based tools
🔹 Marketplace, E-commerce, Booking Platforms - tailored logic, secure payments, real-time updates
🔹 API Integrations: Stripe Slack Twilio OpenAI CRM systems, social media API
🔹 Efficient & secure architectures -clean code modular structure role-based access
Nuxt.js
JavaScript
Laravel
PHP
Full-Stack Development
React
Node.js
CSS
HTML
API Integration
Tailwind CSS
TypeScript
ExpressJS
SQL
MySQL
AI Chatbot
AI Development
AI Agent Development
Vue.js
Web Development
Maksym K.
Ivano-Frankivsk, Ukraine
$29/hr
5.0
18 jobs
Are you looking for a Senior Frontend Engineer who can take complete ownership of your Vue/Nuxt architecture, lead seamless migrations, and deliver pixel-perfect, high-performance web applications?
I am a Senior Frontend Developer specializing in the Vue.js ecosystem (Vue 2/3, Nuxt 2/3) and TypeScript. With a strong track record of building and scaling complex web applications, I help businesses transform slow legacy codebases into modern, lightning-fast, and maintainable products.
I am always enthusiastic about learning new technologies and continuously improving my skills. To ensure smooth, efficient, and well-structured data flows, I can also contribute to back-end development for seamless API integrations and better full-stack alignment.
If you need someone for a long-term, full-time project who thinks like a product owner—not just a coder—let’s talk.
--- 🚀 WHAT I BRING TO YOUR PROJECT ---
• Modern Vue 3 & Nuxt 3 Expertise: Deep knowledge of the Composition API, Pinia, Nuxt SSR/SSG architectures, and optimizing Core Web Vitals.
• Legacy Migration & Refactoring: Extensive experience migrating heavy legacy systems (e.g., Vue 2 Options API in JavaScript) into scalable, type-safe Vue 3/Nuxt 3 systems with TypeScript without breaking production.
• Production-Grade Quality: I write reliable code backed by robust testing strategies using Vitest, Jest, and Cypress for comprehensive Unit and E2E coverage.
• Component-Driven Design: Experience building custom UI element libraries from scratch for complex enterprise platforms, keeping interfaces consistent and development fast.
--- 🛠️ MY CORE TECHNICAL STACK ---
• Frameworks: Vue.js (Vue 2 & Vue 3), Nuxt.js (Nuxt 2 & Nuxt 3)
• Languages: TypeScript, JavaScript (ES6+)
• State Management: Pinia, Vuex
• Styling: Pure CSS3, SCSS/SASS, Tailwind CSS, BEM methodology
• Build Tools & Environment: Vite, Webpack, npm/yarn, Linux/Ubuntu environments
• Testing & CI/CD: Jest, Vitest, Cypress, GitHub Actions / GitLab CI
--- 💼 HOW WE CAN WORK TOGETHER (Long-Term & Full-Time) ---
I am looking for long-term partnerships where I can deeply integrate with your team, understand your business goals, and drive frontend excellence. Whether you are launching a fast-paced Nuxt startup or refactoring an enterprise-level Vue application, I ensure clean, documented, and production-ready code.
Let’s hop on a brief call to discuss your project requirements, technical challenges, and how I can help you scale.
Click "Invite to Job" or "Message" to get started!
Nuxt.js
JavaScript
Vue.js
TypeScript
Vuex
Vuetify
Jest
Cypress
Tailwind CSS
HTML
CSS 3
Sass
Node.js
Apollo.io
Ruby
Dmitriy R.
Mykolayiv, Ukraine
$25/hr
5.0
1 jobs
I help startups and businesses build fast, scalable, and maintainable web applications using Vue.js, Nuxt.js, TypeScript, and modern AI technologies.
With 7+ years of commercial experience, I've successfully delivered 50+ projects ranging from SaaS platforms and enterprise dashboards to e-commerce solutions, AI-powered products, and mobile applications.
I specialize in building production-ready software with clean architecture, reusable component systems, SSR optimization, API integrations, and high-performance user interfaces.
What I can help you build
• SaaS Platforms
• Admin Dashboards
• CRM & ERP Systems
• AI Assistants & Chat Interfaces
• OpenAI & Gemini Integrations
• Mobile Applications
• E-commerce Platforms
• Internal Business Systems
• Real-time Applications
• REST & GraphQL Integrations
• SEO-Optimized SSR Applications
• High-Performance Frontend Architectures
Core Technologies
Frontend
• Vue 3 (Composition API)
• Nuxt 3 (SSR / SSG)
• TypeScript
• JavaScript (ES6+)
State Management
• Pinia
• Vuex
UI & Styling
• Vuetify 3
• Tailwind CSS
• SCSS
• Responsive Design
• Material Design
Backend & APIs
• REST APIs
• GraphQL
• Node.js
• Express
• PHP
Database & Cloud
• Supabase
• Firebase
Testing & Tools
• Vitest
• Jest
• Cypress
• Vite
• Webpack
• Docker
• Git
CMS
• WordPress (ACF)
• Strapi
• OpenCart
AI-Powered Development
I actively integrate Artificial Intelligence into commercial products and development workflows.
My experience includes:
• OpenAI API integrations
• Google Gemini
• AI Assistants
• Intelligent recommendations
• AI Automation
• AI-powered content generation
• Chat interfaces
• RSS automation
• Prompt Engineering
I also use Cursor AI, Claude Code, GitHub Copilot, and Codex to accelerate development while maintaining production-quality code.
Recent Experience
Senior Frontend Developer — AIR Media-Tech
Developing large-scale Vue 3 applications using Nuxt 3, Vuetify, TypeScript, and OpenAI APIs. Designed reusable component architecture, optimized application performance, reduced bundle size by 42%, and improved page load time from 4.2s to 2.4s.
Senior Frontend Developer — Vantino
Led migration from Vue 2 to Nuxt 3 SSR, improving SEO by 67% and increasing organic traffic by 45%. Built scalable applications serving more than 50,000 monthly users.
Frontend Engineer — Purple Ad Labs
Built complex advertising platforms, integrated third-party APIs, developed backend services with Node.js, and optimized data synchronization performance.
Freelance Frontend Developer
Delivered 50+ successful projects across SaaS, e-commerce, marketing, and corporate sectors. Worked with startups and established businesses from idea to production.
Why clients work with me
✔ Clean, scalable architecture
✔ Business-oriented development
✔ Strong communication
✔ Fast delivery without sacrificing quality
✔ Pixel-perfect responsive UI
✔ Performance optimization
✔ SEO-first mindset
✔ AI integration expertise
✔ Long-term maintainable code
Whether you need a modern Vue/Nuxt application, AI integration, mobile app, or a complete SaaS platform, I focus on delivering reliable software that creates real business value.
Nuxt.js
JavaScript
Sass
TypeScript
Node.js
Vuetify
Vue.js
OpenAI API
Tailwind UI
GraphQL
SCSS
Strapi
Cypress
Supabase
AI Implementation
SaaS Development
Web Development
Prompt Engineering
Vuex
Laravel
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