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Vitaly K.
$39/hr
100% Job Success
$300K+ earned
Available now
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I help businesses turn complex ideas into fast, scalable web applications and AI-powered products. My main stack revolves around JavaScript / TypeScript ecosystems, modern frontend frameworks, and reliable backend architecture designed for real production environments. I have 7 years of experience in full-stack engineering. Over the past years, I’ve worked on SaaS platforms, enterprise tools, and high-traffic web systems, building features from concept all the way to deployment. 🔹 Full-Stack Development I build complete web systems using React, Next.js, and Angular on the frontend, combined with Node.js and TypeScript on the backend. My goal is always the same: clean architecture, maintainable code, and systems that continue to scale as products grow. 🔹 AI Integration I also develop AI-driven features such as automated reporting, intelligent assistants, data transformation tools, and AI workflows using modern LLM and OpenAI integrations. These solutions help automate processes and turn unstructured data into useful insights. 🔹 Backend & Data Architecture On the server side I work with Node.js, GraphQL, REST APIs, and modular backend systems. For data storage I design scalable models using PostgreSQL, MySQL, and MongoDB, ensuring reliability, performance, and efficient data handling. 🔹 Infrastructure & Modern Development I deploy and maintain systems using Docker, AWS, CI/CD pipelines, and structured Git workflows, ensuring stable production environments and smooth team collaboration. 🤝 How I Work I collaborate closely with founders, product teams, and designers to turn ideas into working software. Clear communication, transparent progress updates, and scalable technical decisions are core parts of my development process. 🚀 Why Work With Me I focus on building reliable, scalable systems that support real business growth, combining full-stack engineering with modern AI capabilities to create products that are both powerful and future-ready
Vitaly K. has worked .
Codemotion - AI-Assisted Software Delivery Agency
Associated with
Codemotion - AI-Assisted Software Delivery Agency
$10M+
earned
Oleg Z.
$25/hr
100% Job Success
$200K+ earned
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💡 Delivering Scalable Products with React & Full Stack Expertise 💡 📅 10+ years of experience 📦 60+ successfully delivered projects 💰 $10M+ generated for clients 👥 Products with 24,000+ active users I’m a Senior Full Stack React Developer with over 10 years of experience building reliable, scalable web applications. As a React Developer, Next.js Developer, and Node.js Developer, I’ve delivered 60+ projects across SaaS, marketplaces, healthcare, fintech, and real estate. As a React Node.js Developer and Full Stack Developer, I’ve launched 50+ production-grade systems with 99.9% uptime, supporting thousands of users and millions of monthly requests. My work as a Full Stack Developer has helped clients generate over $10M and accelerate product delivery by 30–40%. 🧩 Full Stack React, MERN Stack & Backend Systems I work as a Full Stack Developer, Full Stack React Developer, and React Node.js Developer, building applications with React.js, Frontend React, Next.js (Nextjs), and scalable backend architectures. I specialize in the MERN stack, delivering complete end-to-end solutions as a Full Stack Developer and React Node.js Developer. My experience with the MERN stack includes multiple production systems powered by 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 applications to 120K+ users 🛠 Building stable and maintainable backend systems My background with the MERN stack, React.js, and backend architecture allows me to consistently deliver scalable products as a Full Stack Developer. 🗄 Backend, Databases & Supabase As a Full Stack Developer and React Node.js Developer, I design and build APIs, dashboards, and real-time systems. I work with SQL, PostgreSQL, MySQL, and MongoDB, creating optimized schemas and high-performance data layers. My experience with MongoDB includes building high-load systems within the MERN stack ecosystem. I also use Supabase / Postgres to build modern backend solutions with authentication, RLS, edge functions, and real-time features. 🧠 Built systems using MongoDB, PostgreSQL, and MySQL 🔄 Processed 50K–300K events/day using Supabase 💸 Reduced backend costs by up to 50% with Supabase 🚀 Improved delivery speed by 40% As a Full Stack Developer and React Node.js Developer, I ensure backend scalability, reliability, and long-term maintainability. 🎨 Frontend React & Next.js With 10+ years as a React Developer, React.js Developer, and Frontend React Developer, I build fast, user-focused interfaces using React.js and Next.js (Nextjs). As a Full Stack Developer and React Node.js Developer, I seamlessly connect frontend applications with backend services. ⚡ Improved load times by 50% 📉 Reduced bounce rates by 25–30% 📈 Increased user engagement by 40–45% 📱 React Native & Cross-Platform Development As a React Native Developer, alongside my work as a Full Stack Developer and React Node.js Developer, I build mobile apps integrated with scalable backend systems powered by MongoDB, Supabase, Firebase, and SQL. 📲 12+ mobile apps delivered 👤 130K+ active users supported 💳 Payments, SaaS & PHP / Laravel As a Full Stack Developer and React Node.js Developer, I develop SaaS platforms, marketplaces, and payment systems. I also have strong experience with PHP and Laravel, building and maintaining backend services and APIs. As a Full Stack Developer, I’ve integrated PHP systems with modern stacks like React.js and migrated legacy PHP / Laravel backends to MERN stack and Supabase solutions. 💰 $10M+ revenue generated 📉 Reduced checkout drop-offs by 20–30% 📈 Increased AOV by 20–25% ⚙️ Additional Expertise 30+ projects as a Full Stack Developer and Full Stack React Developer Strong background as a React Node.js Developer Deep expertise in SQL, PostgreSQL, MySQL, and MongoDB Hands-on experience with the MERN stack across production systems Experience with Supabase, Supabase Postgres, and real-time apps 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 Reduced bugs by 30% and improved release cycles by 25% 🤝 Why Work With Me Reliable Full Stack 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 / Laravel Focus on business outcomes, 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" to get started.
Oleg Z. has worked .
Golden Team Soft
Associated with
Golden Team Soft
$6M+
earned
Serhii P.
$45/hr
100% Job Success
$60K+ earned
Available now
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🚀 Successfully delivered 50+ projects 🛠 8+ years of experience across diverse industries, from fintech to edtech. Full Stack Developer with 8+ years of experience spanning fintech to edtech (50+ completed projects). I transform Figma designs into modern, SEO-optimized applications using React, Next, and Vue, and build reliable APIs with Node.js. As a Full Stack Developer, Front End Developer, and Mobile App Developer, I focus on delivering high-performance, scalable solutions with clean architecture and excellent user experience. I specialize in transforming design files (Figma, PSD, Sketch) into pixel-perfect, responsive, and SEO-optimized websites using React.js and Vue.js. My focus is always on performance, clean architecture, and user experience. 🔧 Services I Provide ✅ Front End Development (React.js, Next.js, Vue.js, Nuxt.js, HTML/CSS, Tailwind) Modern React.js front end development with reusable components, supported by my expertise as a full stack developer Conversion-focused, mobile-first, and responsive web design using Vue.js from a full stack developer perspective High-performance, SEO-friendly websites built for growth with React.js and Vue.js ✅ Full Stack Development REST & GraphQL API integrations handled by an experienced full stack developer with Node.js Building portals, dashboards, and admin panels as a full stack developer using Node.js Clean, secure, and scalable architecture delivered by a professional full stack developer with React.js, Vue.js, and Node.js ✅ WordPress Development Fast and responsive WordPress websites created by a full stack developer Custom themes and plugin development by a full stack developer SEO, speed, and performance optimization by a full stack developer ✅ Mobile & App-Like Experiences Progressive Web Apps (PWAs) with React.js & Vue.js built by a full stack developer Smooth, fast, mobile app-style navigation from a full stack developer using React.js Offline-first capabilities for better user engagement by a full stack developer with Vue.js ✅ Website Optimization & Maintenance Speed improvements (90+ Lighthouse scores) implemented by a full stack developer Code refactoring and long-term scalability handled by a full stack developer using Node.js SEO and technical optimization for better rankings as a full stack developer 🧰 Tech Stack & Skills Frontend: React.js, Next.js, Vue.js, Nuxt.js, HTML5, CSS3, Tailwind CSS, SASS/SCSS, JavaScript (ES6+), TypeScript, Responsive & Mobile-first Design, UI/UX Principles, Framer Motion Backend & APIs: Node.js, Express.js, REST, GraphQL, Firebase, Serverless Architecture, API Integration as a full stack developer Platforms & CMS: WordPress, Shopify, Vercel, Netlify Databases: MongoDB, MySQL, PostgreSQL, Firebase Firestore DevOps & Tools: Git, GitHub/GitLab, Docker, CI/CD, Testing & Debugging, NPM/Yarn, VS Code Cloud & Deployment: AWS, Google Cloud, Azure Additional Skills: Agile/Scrum, Product Design, Prototyping (Figma, Adobe XD), Performance Optimization, SEO Best Practices, Analytics & Tracking by a full stack developer 💡 Whether you need a Front End Developer to turn your design into code, a React.js Developer for a complex SPA, a full stack developer to build end-to-end solutions with Node.js, or a WordPress Developer to launch a professional site - I can help deliver fast, reliable, and scalable results as a full stack developer using Vue.js and React.js. 🚀 Let’s create a product that looks amazing, works flawlessly, and drives real business growth. Schedule a quick call with me, and I’ll provide a free consultation as your full stack developer to discuss your project. June 30, 2026 I am a senior fullstack developer and web/mobile app developer specializing in React (React JS, React Native, fullstack React, React Node, React web development), WordPress (WordPress developer, WordPress full stack, WordPress Elementor, Divi), PHP, Laravel, Python (Python full stack developer), Ruby on Rails, Angular, Flutter, Java, and Shopify. I deliver website design, WordPress website design, mobile app development, front end development, SEO, and high-performing e-commerce solutions. Experienced with Facebook Ads, Amazon FBA, and full stock web solutions, I am a fluent expert ready to build scalable web and mobile applications. Last updated: 03.08.2026
Redlab
Associated with
Redlab
$80K+
earned
Artem  K.
$40/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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I am a Senior Next.js Developer focused on React, Node.js, and API-driven web applications. My main work is building custom web products where the frontend depends on clean architecture, reliable API integration, authentication, and real user workflows. I usually work on Next.js / React applications connected to existing backends, Node.js services, REST or GraphQL APIs, Firebase, CMS tools, and third-party integrations. I can help when you need a React developer or front-end developer who can do more than just build UI screens. I can take Figma designs, Bootstrap themes, existing prototypes, or legacy interfaces and turn them into production-ready Next.js / React pages connected to real data and backend logic. I also support full-stack Next.js and MERN-stack products when the project uses React, Node.js, Express.js, MongoDB, or a similar JavaScript-based stack. My backend work usually covers API integration, authentication flows, account logic, dashboards, ecommerce flows, admin panels, and integration with external services. Earlier in my career, I worked with WordPress, CMS-based websites, and classic web development projects. That experience helped me understand content structure, SEO-friendly pages, admin workflows, landing pages, and business websites. Today, my focus is custom development: Next.js applications, React frontends, full-stack Next.js products, SaaS platforms, ecommerce flows, marketplaces, customer portals, and web applications built around real product logic. Typical projects I can help with: - Next.js and React web application development - full-stack Next.js development with Node.js and Express.js - React developer / front-end developer work for existing products - REST API and GraphQL API integration - Firebase, Firestore, and Google Cloud Platform integrations - NextAuth and custom authentication flows - SaaS dashboards, customer portals, marketplaces, and ecommerce platforms - Strapi, headless CMS, and CMS-driven web products - Figma-to-Next.js or Bootstrap-to-Next.js implementation - frontend architecture, performance improvements, and code maintainability Tech I work with: Next.js, React, TypeScript, JavaScript, Node.js, Express.js, NestJS, MongoDB, PostgreSQL, RESTful API, GraphQL, Firebase, Firestore, Google Cloud Platform, NextAuth, Redux, Strapi, CMS integrations. I am comfortable joining an existing team, working directly with a CTO or founder, taking ownership of a product area, and moving features from backlog to release.
2MUCHCOFFEE LLC
Associated with
2MUCHCOFFEE LLC
$4M+
earned
David G.
$20/hr
100% Job Success
$10K+ earned
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I am a Full stack developer with 3+ years of experience. I help startups and product teams build fast, scalable frontends — SaaS admin panels, anonymous AI-powered chat platforms, CMS systems and crypto product startups My experience covers all aspects of development including popular technologies, frameworks and best practices ► 𝗧𝗲𝗰𝗵 𝘀𝘁𝗮𝗰𝗸 𝗜 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵: - Frameworks: React & Next.js - Languages: TypeScript, JavaScript, HTML5, CSS3/SCSS - Libraries: Tailwind CSS & Bootstrap | Redux-toolkit & Zustand | REST API, React Query, WebSockets - Tools & Platforms: Figma, GitHub, Vercel, Slack, Asana, Jira, Shopify, Framer, Tilda 📌 Let's discuss your project! I'm available for calls anytime
David G. has worked .
Oleh S.
$25/hr
100% Job Success
$900+ earned
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Full stack developer with 5+ years building production React and Node.js applications for AdTech, iGaming, fintech, and SaaS teams where the frontend and backend have to work together without breaking. ━━━━━━━━━━━━━━━━━━━━━ WHAT I HAVE BUILT AS A FULL STACK DEVELOPER ▸ Campaign dashboard handling $10M+ monthly ad spend - 20+ internal users, RTB at scale, near-real-time data tables ▸ Crypto iGaming platform - player wallet and KYC flows wired to a full admin backoffice for support and compliance ▸ Financial advisor platform - onboarding flows, analytics dashboards, role-based access control ▸ Mortgage broker CRM - in daily production use for over a year, multi-step workflows ▸ Aerial photo catalog - high-volume file uploads, async processing, search at scale ▸ 23,000+ hours delivered through Pixelteh, 100% Job Success ▸ Staffing SaaS: web admin + React Native field app kept in sync in real time for 500+ active users ⭐⭐⭐⭐⭐ "Oleh understood the product from day one. The dashboard was clean, performant, and handed off with documentation we could actually use." - Nick, owner of the mortgage brokerage ━━━━━━━━━━━━━━━━━━━━━ A FULL STACK DEVELOPER WHO WORKS ACROSS BOTH LAYERS Most full stack developer problems happen at the integration boundary, where the React frontend meets the Node.js backend and assumptions on both sides do not match. I design the API contracts and data shapes before writing the frontend, so the full stack developer output stays coherent from first commit to handoff. My background as a full stack developer is frontend-heavy by origin. The React and Next.js work I deliver as a full stack developer is not a secondary concern bolted onto a backend build, it is where I have the deepest depth. The Node.js and PostgreSQL work I do as a full stack developer is production-grade, not scaffolded. You get a system that works correctly at the seams. ━━━━━━━━━━━━━━━━━━━━━ WHAT I BUILD AS A FULL STACK DEVELOPER ▸ React and Next.js full stack developer applications SaaS dashboards, admin panels, B2B platforms, and data-heavy operational interfaces where the UI stays fast and correct under real usage. Full stack developer work connecting React frontends to Node.js backends with clean API design and TypeScript end to end. ▸ Node.js full stack developer backends REST APIs, authentication, role-based access control, PostgreSQL and MongoDB data layers, Supabase integrations. As a full stack developer I design the schema and API contracts alongside the frontend data requirements, so nothing gets retrofitted. ▸ PostgreSQL and Supabase data layers Multi-tenant schema design, row-level security, query optimization, migrations. Full stack developer delivery where the data model was the hardest part of the build. ▸ Next.js full stack developer applications Server-side rendering, static generation, API routes, and monorepo setups where Next.js handles both frontend and backend. My preference as a full stack developer for public-facing products where performance and SEO matter alongside application logic. ▸ TypeScript full stack developer codebases Strict typing from React component props through to Node.js API response shapes. Every full stack developer codebase I deliver is TypeScript-first, so the next developer can extend it without reverse-engineering the data flow. ━━━━━━━━━━━━━━━━━━━━━ WHO HIRES ME AS A FULL STACK DEVELOPER 🎯 Product teams building SaaS platforms, B2B tools, or operational dashboards who need a full stack developer to own the whole delivery, not hand off at the frontend boundary 🎯 Startups who need a full stack developer who can scope, build, and ship without daily management 🎯 Teams with a working product and a data layer that has started to fight them ━━━━━━━━━━━━━━━━━━━━━ FULL STACK DEVELOPER STACK Frontend: React, Next.js, TypeScript, TanStack Query, Zustand, Tailwind CSS, React Native Backend: Node.js, Express, REST API design, auth, role-based access control Data: PostgreSQL, MongoDB, Supabase, schema design, migrations, query optimization Delivery: Vercel, CI pipelines, documented handoff ━━━━━━━━━━━━━━━━━━━━━ WHAT YOU GET Every full stack developer engagement starts with a scoping call to align on architecture before any code is written. You get a TypeScript-first codebase, documented API contracts, and a handoff package your team can maintain. I do not disappear after launch, I stay available for questions on anything I delivered. CLIENTS ALSO SEARCH: full stack developer, hire a full stack developer, React full stack developer, Node.js full stack developer, Next.js developer, TypeScript developer, SaaS developer, MERN developer. 📩 Ready to build? Send a message with what you are building and I will reply the same day.
Pixelteh
Associated with
Pixelteh
$700K+
earned
Konstantin D.
$30/hr
100% Job Success
$8K+ earned
Available now
Offers consultations
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I help startups and growing businesses build fast, scalable web and mobile applications using Next.js, Supabase, React, and React Native. As a full-stack developer, I take products from idea to production with clean, maintainable code and predictable delivery. I specialize in building SaaS platforms, marketplaces, and custom business tools with a strong focus on performance, user experience, and long-term scalability. Whether you need a modern web app with a polished UI or a cross-platform mobile app for iOS and Android, I can handle both end-to-end. I work hands-on in development while thinking like a product owner, helping you make the right technical decisions, avoid costly mistakes, and ship faster. My goal is simple: deliver solutions that work now and scale as your business grows, with clear communication at every step. Also, I am the founder of Impactful Apps with 15+ years of experience in technical product management. My passion is building platforms that improve how businesses operate and how users interact with services, from MVPs to complex, multi-user SaaS systems. What I Can Help You Build - SaaS Platforms - MVP development for startups - AI Agent and Agentic Workspace - Subscription platforms - Dashboards and internal SaaS tools - Marketplaces & Platforms - Two-sided marketplaces Listing platforms - Recruitment and matching systems - Business Applications - CRMs and internal tools - Operational dashboards - Workflow automation systems My Approach 1. Understand your product and business goals 2. Architect scalable and maintainable solutions 3. Develop the platform hands-on (frontend & backend) 4. Launch and iterate based on real usage I combine full-stack development skills with product thinking, so you get not just a developer, but a technical partner who can bring your idea from concept to launch. Typical Clients - Startup founders building their first SaaS product - Companies creating digital platforms or marketplaces - Businesses needing custom internal tools or automation If you’re planning to build a SaaS platform, marketplace, or complex web application, let’s talk — I can code it and lead the product development. Skills - Full-Stack Development (React, Next.js, Node.js) - AI Agentic Workspaces - SaaS Development - Marketplace & Platform Development - Product Architecture - API Development - UX/UI Collaboration - LowCode
Impactful Apps — Web Platforms & SaaS Development
Associated with
Impactful Apps — Web Platforms & SaaS Development
$4K+
earned
Serhii O.
$25/hr
100% Job Success
$100K+ earned
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I’m a Full Stack Web Developer specializing in React, Next.js, Node.js, MERN stack development, SaaS platforms, AI integrations, and scalable API-driven web applications. I build fast, secure, production-ready systems with clean architecture and long-term scalability for startups and growing businesses. With 10+ years of experience in web development and 5+ years focused on modern full stack ecosystems, I deliver end-to-end solutions including frontend, backend, databases, authentication, payment systems (Stripe), real-time applications (Supabase/WebSockets), and enterprise SaaS platforms. Experience with Next.js, e-commerce platforms, API development, authentication systems, payment integration, database architecture and deployment. 💻 Core Expertise (Full Stack + SaaS + MERN) As a full stack web developer, I build: SaaS platforms and multi-tenant architectures E-commerce systems with Stripe payment integration Booking, scheduling, and marketplace platforms Admin dashboards, CRM systems, and analytics tools Real-time applications using Supabase and WebSockets API-driven architectures and microservices Scalable MERN stack applications (MongoDB, Express, React, Node.js) I specialize in Next.js development, React development, Node.js backend systems, API integration, authentication systems, and scalable database design. ⚙️ Backend Engineering | Node.js, Express, NestJS As a backend-focused full stack developer, I design secure, high-performance systems using Node.js, Express, and NestJS. I build: REST API development & API integration Authentication & role-based access control Stripe payment systems for SaaS & e-commerce Database architecture (MongoDB, MySQL, PostgreSQL, Supabase, Firebase) Real-time backend systems (WebSockets, Supabase) Third-party API integrations (CRMs, AI tools, automation systems) 🎨 Frontend Development | React, Next.js, Redux As a front-end web developer, I build modern, fast, and scalable UI systems using React, Next.js, Redux, and TailwindCSS. I create: High-performance SaaS dashboards SEO-optimized Next.js applications Responsive UI/UX interfaces Redux-based state management systems Real-time frontend integrations with APIs 🤖 AI Development & Automation (Cursor + Claude Code) I integrate modern AI tools like Cursor and Claude Code to accelerate development and build intelligent systems. I deliver: AI chatbots and assistants AI-powered SaaS features Automation workflows OpenAI / API integrations Smart backend logic & data processing systems ☁️ Databases, Supabase & Firebase Strong experience in: Supabase (auth, real-time DB, APIs) Firebase (real-time apps, cloud functions) MongoDB, MySQL, PostgreSQL Database optimization & scalable architecture SaaS-level data modeling 🛒 SaaS, E-commerce & Enterprise Systems I build: Subscription-based SaaS platforms E-commerce platforms with Stripe integration Booking & marketplace systems Enterprise dashboards & admin systems Large-scale full stack applications 📱 Additional Experience React Native developer (mobile apps) Python developer (automation & backend tools) WordPress developer (custom websites) Cross-platform mobile development 💬 Why Clients Choose Me ✔ Top-tier MERN stack expertise ✔ Full stack web developer (frontend + backend mastery) ✔ SaaS architecture & scalable system design ✔ Strong API development & integration skills ✔ AI integration & automation workflows ✔ Clean, maintainable, production-ready code ✔ Reliable communication & fast delivery 🚀 Let’s Build Something Scalable If you’re looking for a Top Full Stack Web Developer to build scalable SaaS platforms, modern web applications, or AI-powered systems, I can help you turn your idea into a production-ready product with clean architecture and long-term scalability.
Golden Team Soft
Associated with
Golden Team Soft
$6M+
earned
Gregory P.
$35/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
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Full Stack Developer SaaS focused on turning complex product ideas into stable, scalable platforms. Recent Client Results: ✔️ launch SaaS products in 6-10 weeks as Full Stack SaaS Developer ✔️ improve API performance by 30-45% as a Full stack Developer ✔️ reduce manual operations by 40-60% as a Node.js Developer ✔️ build platforms ready to support 10k+ users as a Full stack Developer React node As a Full Stack Developer React Node and SaaS Developer I help startups and established businesses: 16+ years in software development 225+ delivered products as Full stack Developer React Node | MERN stack developer 9+ years of hands-on Node.js developer experience. As a Certified Full Stack Developer React Node and Web Full Stack React Developer, I focus on business outcomes first: launching SaaS MVPs 30–40% faster, improving release stability, building scalable architecture and reducing costly rework as products grow. My experience as a Full Stack React JS specialist allows me to deliver production-ready solutions with React.js, Node.js, Next.js, Nest.js and modern JavaScript Developer workflows, supporting platforms with 10k+ users, 99.9% uptime targets, and integrations across APIs, payments, CRMs, AI developer tools. As a Backend Developer Nest.js with strong TypeScript Backend Development skills, I design maintainable server-side application architecture, secure APIs, and clean business logic for SaaS, internal tools, marketplaces, and custom platforms. As a Node js Developer ( Nodejs Developer ) I use Node.js to simplify complex workflows, improve backend stability by 33–45%, and support products built on both SQL and NoSQL databases. My Typescript Nodejs background helps teams move 25–35% faster with modular services, readable code and easier long-term maintenance. I also build advanced integrations with Stripe, third-party services node.js graphql solutions for scalable product ecosystems, including platforms with 10k+ users, 99.9% uptime targets 20+ API development projects / payment / CRM integration. I’m a Full Stack Developer React Node with deep experience in scalable web application development across SaaS platforms, CRM systems, dashboards, admin panels, internal tools, custom business products. My React js Node js work is focused on shipping fast, usable, and maintainable solutions that support real business goals. As a React Developer and Full Stack Developer React Node, I build responsive, scalable interfaces using React, JavaScript, Node.js, Next.js. My work as a React Developer focuses on creating fast, user-friendly products that improve usability, support growth, reduce friction across the customer journey. I also work as a React Native Developer ( Full Stack Developer SaaS ) when a product needs mobile-first extensions or companion app experiences aligned with the main platform. As a Full stack AI SaaS developer, I help businesses with scalable SaaS Projects, Edtech Products with dashboards and payment flows, advanced e-commerce solution beyond CMS limits, Corporate Websites with strong backend logic, marketplace platforms with secure transactions, Authentication and Security with JWT-based access control, API Development and Integration, GraphDB, REST API, node.js graphql, CRM Development, Payment Gateways Stripe Paypal Liqpay, Database Management & Optimization and ongoing Deployment & Maintenance. I also bring practical experience with PHP, Laravel, Python, Vue.js, Angular, React, Node.js, full stack developer supabase react, full stack react native spring boot, JavaScript, MySQL, WordPress, Tailwind CSS, Bootstrap, HTML, HTML5, CSS, CSS 3, TypeScript, Redux, jQuery, Responsive Design, Web Design, PHP, MongoDB, Next.js python full stack developer, full stack developer ai, full stack developer react, full stack developer shopify My work covers full stack node.js react for modern Web Application products, including custom API development and API Integration, while Git supports a clean and reliable delivery workflow. I also bring strong Web Design awareness, helping create interfaces that are not only functional, but also responsive, polished and user-friendly. 👉If you need a Full Stack Web Developer who can launch faster, improve performance, stabilize architecture, and build for long-term growth - let’s discuss your product. ggrrppkkll
Gregory P. has worked .
Malevich Studio
Associated with
Malevich Studio
$300K+
earned
Serhii L.
$35/hr
100% Job Success
$2K+ earned
Available now
Offers consultations
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Top Rated Mobile & Full-Stack Developer with 10+ years of experience, 100% Job Success, and 20+ mobile apps delivered for iOS and Android. I help startups and product teams build production-ready mobile apps with Flutter/React Native, backend integrations, and AI-powered features. If you need to launch an MVP, rebuild an existing mobile app, or add AI features like chatbots, assistants, recommendations, or automation, I can take ownership from architecture to release. My main focus is mobile development. I build fast, scalable, user-friendly apps for iOS and Android, from MVPs to complex production systems. I can also handle the backend, web dashboard, API integrations, and AI features needed to make the product complete. ⭐️I can help you with⭐️ - Flutter app development for iOS and Android - React Native mobile app development - Kotlin Android development - Mobile MVP development from scratch - Figma to mobile app implementation - React web apps and admin dashboards - Backend APIs with Python and Node.js - REST / GraphQL API integrations - AI assistants, chatbots, and AI-powered app features, AI-agents - OpenAI / ChatGPT, Claude, Gemini API integration - Push notifications, maps, payments, chat, and real-time features - Bug fixing, refactoring, performance optimization, and app release support ⭐️Key experience⭐️ - 10+ years in software development - 20+ mobile apps delivered - 10+ Flutter apps built from scratch - 5+ React Native apps delivered - 10+ AI-powered applications built - 100,000+ installs on Google Play for one delivered product - MVP delivery experience in 2-5 weeks ⭐️Core tech stack⭐️ - Mobile: Flutter, Dart, React Native, Kotlin, Swift - Frontend: React, Next.js, JavaScript, TypeScript, Tailwind - Backend: Python, Node.js, Express, Firebase, PostgreSQL, MongoDB, MySQL - AI: OpenAI API, ChatGPT API, Google AI, Azure AI, Claude, AI assistants, AI-Agents - Tools: Git, Docker, AWS, DigitalOcean, Figma, Jira, Trello I have worked on products in fintech, e-commerce, health tech, education, logistics, productivity, content creation, and AI-powered applications. Clients usually hire me when they need someone who can take ownership of the mobile app, understand the business goal, communicate clearly, and also support the backend or AI side when needed. If you need a reliable developer to build a mobile app, improve an existing product, or add AI features to your platform, I would be happy to discuss your project.
Serhii L. has worked .