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Abdur  R.
$10/hr
92% Job Success
$10K+ earned
Available now
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I’m an 𝙁𝙧𝙤𝙣𝙩 𝙀𝙣𝙙 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙧 | 𝙍𝙚𝙖𝙘𝙩, 𝙉𝙚𝙭𝙩.𝙟𝙨 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙧 | 𝙒𝙤𝙧𝙙𝙋𝙧𝙚𝙨𝙨 𝐄𝐥𝐞𝐦𝐞𝐧𝐭𝐨𝐫 𝙎𝙥𝙚𝙘𝙞𝙖𝙡𝙞𝙨𝙩 𝐰𝐢𝐭𝐡 𝟓+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐚𝐧𝐝 𝟖𝟎+ 𝐬𝐮𝐜𝐜𝐞𝐬𝐬𝐟𝐮𝐥 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬. 𝐈 𝐛𝐮𝐢𝐥𝐝 𝐟𝐚𝐬𝐭, 𝐦𝐨𝐝𝐞𝐫𝐧, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐰𝐞𝐛𝐬𝐢𝐭𝐞𝐬 that are responsive, SEO-friendly, and tailored to your business needs. Need a website that loads quickly, looks professional, and converts visitors into customers — without stress or delays? I help businesses, agencies, and startups create websites that actually work, perform reliably, and grow your online presence. 𝐌𝐲 𝐟𝐨𝐜𝐮𝐬 𝐢𝐬 𝐬𝐢𝐦𝐩𝐥𝐞: 👉 Websites that look professional 👉 Fast-loading and SEO-friendly 👉 Easy for you to manage 👉 Ready to grow your business 💼 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐈 𝐎𝐟𝐟𝐞𝐫 🌐 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 (𝐌𝐨𝐬𝐭 𝐑𝐞𝐪𝐮𝐞𝐬𝐭𝐞𝐝) WordPress installation & setup Theme install & full customization Elementor Pro design & landing pages Business websites & website redesign Plugin setup & configuration Fix layout & responsive issues Speed optimization (WP Rocket) Email template design ⚡ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 HTML, CSS, Tailwind, Bootstrap, DaisyUI, ShadCN Pixel-perfect responsive design Convert Figma/PSD to real website Clean & reusable components 🚀 𝐑𝐞𝐚𝐜𝐭 / 𝐍𝐞𝐱𝐭.𝐣𝐬 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 React.js & Next.js applications TypeScript support API integration & admin dashboards SEO optimized websites 🔧 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 / 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 Node.js & Express.js MongoDB & Mongoose Authentication systems & CRUD REST APIs ⭐ 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐇𝐢𝐫𝐞 𝐌𝐞 ✔ Clear communication & daily updates ✔ Fast delivery with deadlines met ✔ Clean, maintainable, and secure code ✔ Long-term support available ✔ I don’t disappear after delivery I don’t just build pages — I create websites that help your business grow and succeed. 📩 𝐒𝐞𝐧𝐝 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 𝐰𝐢𝐭𝐡 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 — 𝐈’𝐥𝐥 𝐬𝐮𝐠𝐠𝐞𝐬𝐭 𝐭𝐡𝐞 𝐬𝐢𝐦𝐩𝐥𝐞𝐬𝐭 𝐚𝐧𝐝 𝐦𝐨𝐬𝐭 𝐞𝐟𝐟𝐞𝐜𝐭𝐢𝐯𝐞 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧.
Abdur R. has worked .
Valerii C.
$45/hr
100% Job Success
$200K+ earned
Available now
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🚀 The Top 3% of 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 Node.js & Full-Stack Talent on Upwork 🤖 Modern 𝐀𝐈 𝐒𝐭𝐚𝐜𝐤: Cursor, Lovable, Claude Code, GitHub Copilot, GPT-4/GPT-4o, Claude Sonnet/Opus ⚡ 10+ Years of Professional Experience ⚡ 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬, 𝐋𝐋𝐌 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰𝐬 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 ⚡ 30–40% Faster Delivery Through 𝐀𝐈-𝐀𝐬𝐬𝐢𝐬𝐭𝐞𝐝 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 Welcome! 👋 I'm a Senior Node.js Developer, Node.js Backend Developer, and Full-Stack Developer specializing in scalable, secure, and high-performance backend systems. For 10+ years, I've helped companies architect, build, optimize, and modernize SaaS platforms, enterprise applications, fintech products, healthcare solutions, CRM/ERP systems, and marketplace platforms. From Startup MVPs to enterprise ecosystems, I deliver software designed to scale with business growth. 🔥 WHAT YOU GET ✔ High-Performance Backend systems engineered to process millions of requests with 99.99% uptime. ✔ Production-ready features delivered 30–40% faster using AI-assisted development and AI-generated code workflows. ✔ End-to-End Development—from MVP Development and Product Development to long-term Backend Support and Application Maintenance. ✔ A Dedicated Developer and Technical Lead focused on measurable business outcomes. 🤖 AI-ASSISTED ENGINEERING STACK ✔ 5+ years leveraging Cursor, GitHub Copilot, Claude Code, OpenAI ChatGPT, GPT-4, and GPT-4o to accelerate prototyping, debugging, testing, and implementation by 30–40%. ✔ While AI accelerates delivery, critical architecture decisions, scalability planning, and Technical Lead responsibilities remain grounded in 10+ years of engineering experience. 🚚 WHERE I DELIVER As a Senior Node.js Developer and Backend Engineer, I build REST API and GraphQL API ecosystems using Node.js, Express.js, NestJS, Fastify, Koa.js, JavaScript, TypeScript, WebSocket, Socket, Microservices, and Event-Driven Architecture. As an API Developer and REST API Developer, I deliver API Development, API Integration, Third-Party API Integration, Authentication, Authorization, JWT, OAuth, SSO, Swagger, OpenAPI, and API Documentation for secure enterprise environments. As a Full Stack Developer, I create Web Applications, Ecommerce Websites, Website Redesign projects, Browser Extensions, Google Chrome Extensions, Desktop Applications, Platform Plugins, Headless CMS, CMS Integration, Odoo Development solutions, and End-to-End Development initiatives. As an AI engineering partner, I help companies implement AI Development through AI Agent Development, AI App Development, AI Bots, Chatbots, ChatGPT Integration, OpenAI API integrations, OpenAI Codex Prompt workflows, AI Model Integration, and AI-generated code strategies that improve team productivity by 30–40%. 💳 INTEGRATIONS & AUTOMATION ✔ 10+ years integrating Stripe Integration, PayPal Integration, Twilio Integration, SendGrid, shipping providers, Payment Integration services, Webhooks, and System Integration workflows. ✔ Built asynchronous architectures using RabbitMQ, Kafka, BullMQ, Queue Management, and Message Queues to improve throughput and reliability. ✔ Automated Data Processing and ETL pipelines that reduce manual effort and support real-time decision-making. ⚒️ TECHNOLOGY ECOSYSTEM ✔ 10+ years of Backend Development using Node.js, Express.js, NestJS, Fastify, JavaScript, TypeScript, Python, PHP, Java, Kotlin, Scala, Ruby, C#, ASP.NET, Django, and modern Software Architecture practices. ✔ 8+ years delivering Full-Stack Development with React, Angular, AngularJS, Vue.js, HTML5, CSS3, Bootstrap, jQuery, Google Analytics, Adobe Photoshop, and Website Optimization strategies. ✔ 10+ years designing Database Development and Database Architecture solutions using MongoDB, PostgreSQL, MySQL, Redis, DynamoDB, Firebase, Supabase, Prisma, TypeORM, Sequelize, Mongoose, Microsoft SQL Server, MariaDB, Oracle, Neo4j, and Azure Cosmos DB. ✔ 7+ years deploying cloud-native applications with Amazon Web Services (AWS), Lambda, EC2, S3, Azure, Google Cloud Platform, Docker, Kubernetes, DevOps, Serverless Architecture, GitHub Actions, Jenkins, Git, and CI/CD pipelines. 🏆 RESULTS & IMPACT ✔ Delivered SaaS Development initiatives, ecommerce solutions, enterprise applications, and real-time systems serving thousands of users worldwide. ✔ Improved API performance by up to 50% through Backend Optimization, Redis caching, and Database Architecture improvements. ✔ Accelerated release cycles by 30–40% using AI-native engineering practices without sacrificing maintainability. ✔ Built Scalable Backend infrastructures capable of supporting millions of transactions and sustained business growth. Whether you need a Node.js Developer, Node.js Backend Developer, Backend Engineer, Full-Stack Developer, API specialist, AI integration partner or Technical Lead I'd be happy to discuss your architecture, roadmap, and next steps.
Onix-Systems, LLC
Associated with
Onix-Systems, LLC
$20M+
earned
Waseem A.
$40/hr
100% Job Success
$100K+ earned
Available now
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Your AI SaaS works in the demo, then breaks the moment real users hit it. I build the version that doesn't, the kind running in production right now, moving 10,000+ clinical messages a day at 99% delivery and saving one client $400K a year. RAG that doesn't hallucinate, agents that survive edge cases, multi-tenant data that stays sealed. And where it matters most, in regulated healthcare and fintech, that's the work I'm known for. WHAT MAKES ME DIFFERENT Most developers build exactly what you spec. You get someone who tells you what the business actually needs first, before you spend the budget, then builds it to last. Five plus years leading architecture, making build-versus-buy calls, and operating as fractional CTO for founders without a full-time technical hire. The rare part: shipped HIPAA-compliant healthcare systems and SEC-compliant fintech infrastructure to US standards, where audit trails and reliability are non-negotiable. Few AI developers can claim that honestly. PROVEN IN PRODUCTION The VP of Enterprise Solutions at Fukuda Denshi USA endorsed an HL7 gateway I built for their HealthMosaic platform, now moving 10,000+ clinical messages a day from 200+ hospital monitors at a 99% delivery rate, saving an estimated $400K a year. For a US fintech startup, a SEC Reg CF compliant backend with 248 passing tests and zero production bugs. What clients say: "He thinks like a product owner, not just a developer, and delivered production-ready work ahead of schedule." Justin R., VP of Enterprise Solutions, Fukuda Denshi USA "By far the best developer I've worked with. If you need someone who delivers, hire him." Carmen M., Business Consultant "Clean, well thought out design, finished weeks ahead of schedule." Jett S., Founder, NxtSzn If you're building in AI, healthcare, fintech, or any SaaS where it has to work the first time, send me what you're building. You'll hear back within a day on whether I'm the right fit, and I'll tell you straight if I'm not. WHAT I BUILD FOR YOU → AI-powered SaaS and MVPs, multi-tenant, Stripe billing, RBAC, row-level security, architected to scale from day one → AI agents, RAG systems, and intelligent automation on OpenAI, Claude, Gemini, and LangChain, built around your business logic, not wrapper demos → HIPAA-compliant healthtech, HL7, FHIR, EMR integration, clinical workflows to US standards → Fintech infrastructure, event-sourced ledgers, escrow, payments, audit-grade reliability → API and system integration, REST, GraphQL, webhooks, CRM and ERP, into existing and legacy codebases → Cloud and DevOps, AWS, Docker, CI/CD, production deployments that hold up under load CORE STACK & KEYWORDS React, Next.js, TypeScript, Node.js, NestJS, Python, FastAPI, Django · OpenAI, Anthropic Claude, Google Gemini, LangChain, RAG, pgvector, Pinecone, AI agents · PostgreSQL, MongoDB, Redis, Prisma, Supabase, Firebase · AWS, GCP, Docker, Kubernetes, CI/CD · Stripe, HubSpot, Salesforce · HIPAA, HL7, FHIR, SEC Reg CF, multi-tenant SaaS, MVP development, fractional CTO
Waseem A. has worked .
Mohammed Azhar M.
$18/hr
94% Job Success
$50K+ earned
Available now
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🚀 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 - 𝘁𝗵𝗲 𝘁𝗼𝗽 5% 𝗼𝗳 𝘁𝗮𝗹𝗲𝗻𝘁 𝗶𝗻 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 🔥 ABOUT ME I’m a Senior Full Stack Developer React Node and Next.js developer with 6+ years (12,000+ hours), building 40+ SaaS Platform, SaaS MVP, and Marketplace Platform products across 60+ clients as fullstack developer. As a Full Stack Developer React Node, I work across Frontend React and mobile app developer roles, delivering 50+ Web App Development, Web Application, and react native systems. I’ve repeatedly worked as a Next js developer and Full Stack Developer React Node, owning full lifecycle from Build MVP to Production-ready platform. I’ve built 25+ frontend systems as a React Developer and nextjs developer using Frontend React, while also working as a react native developer creating cross-platform mobile solutions. As a node.js developer, I design API Integration Architecture and Data Platform pipelines handling 3M+ API requests/month. Across 20+ systems, as Full Stack Developer React Node I delivered Client Portal, User Login, Admin Dashboard, shopify, and Analytics Dashboard solutions supporting 15,000+ users. I’ve used Supabase and Next.js Vercel as Frontend React in 25+ projects to build Multi-tenant SaaS and Scalable SaaS Platform systems with 99.9% uptime. 6+ years as a React Developer and delivering 60+ SaaS Platform, MVP, and Scalable SaaS Platform solutions. 70+ projects as a Frontend React Developer, including 30+ Web App builds, 15+ Next.js tailwind systems, and 10+ react native mobile app developer launches. 20+ products built as a Full Stack Developer React Node generating significant revenue across CRM Platform, Data Platform, and B2B Platform. 25,000+ active users across Web Platform and mobile systems built by a Frontend React Developer and Full Stack Developer React Node. 🔥 ACHIEVEMENTS Built 30+ SaaS Platform and Web Platform systems as a Full Stack Developer React Node and Nextjs developer, supporting 20,000+ users with 99.9% uptime using react.js node.js. Delivered 20+ projects as a Frontend React Developer and react native developer, reducing time-to-market by 35% using nextjs typescript and tailwindcss. Built API Integration and backend pipelines as a Full Stack Developer React Node, processing 5M+ API requests/month across Analytics Dashboard and Business Platform systems. Developed 10+ next.js seo optimized platforms as a React Developer, handling high-traffic volumes using mern stack and nextjs tailwind. Scaled 15+ Marketplace Platform and E-commerce Platform systems as a Full Stack React Developer, supporting shopify web developer tasks and Stripe integrations. Improved 15+ legacy systems as a Full Stack Developer React Node, achieving 2–3x performance gains and 40% fewer bugs as a front end web developer. Delivered 10+ Mobile App systems as a react native developer, serving thousands of users and coordinating with ux ui teams for react web development. 🔥 TECH STACK As a React Developer and Full Stack Developer React Node, I’ve worked across 40+ projects building scalable web applications using react.js and react redux, including 15+ high-load systems, while also delivering 10+ cross-platform solutions with react native as a react native mobile app developer reaching 30K+ installs. Throughout my experience, I’ve taken on roles as a react js developer and next js developer in distributed teams, including setups like react developers ethiopia, and contributed to 20+ backend-heavy systems as a node.js developer and full stack developer node js, handling data pipelines and logic. I’ve been involved in 20+ projects across diverse ecosystems, from wordpress developer environments to modern stacks using next.js developer workflows, and tools like strapi, svelte, and webflow, adapting to different business requirements. On the backend, I’ve worked as full stack developer node js, backend node.js, across 30+ systems, building services on node.js aws infrastructure and integrating with firebase, postgresql, and supabase postgres, supporting applications with 10K+ users. On the frontend side, I’ve taken roles including front end developer react, frontend react developer, and nextjs developer, delivering 40+ UI systems with complex workflows and high-performance interfaces using JavaScript developer and typescript. 🔥 WHAT CLIENTS GET A Full Stack Developer React Node and Nextjs Developer with 6+ years and 60+ projects, delivering 30+ Production-ready Platforms. As a Full Stack React Developer and react native developer, I focus on scalable architecture, clean code, and long-term growth for products with 10,000+ users. Strong experience as a React Developer, node.js developer, and backend developer across 40+ systems ensures reliable delivery aligned with business goals. 🚀 Click "Invite" or "Hire" Full Stack Developer React Node
Mohammed Azhar M. has worked .
3Brain Technolabs Private Limited
Associated with
3Brain Technolabs Private Limited
$20K+
earned
Wasiq C.
$35/hr
96% Job Success
$200K+ earned
Available now
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Senior Full Stack Web & Mobile App Developer | Contract & Remote Specialist With 15+ years of experience and over 4,000 hours worked on Upwork, I help businesses build scalable, secure, and high-performance web and mobile applications that deliver measurable results. I specialise in PHP, Laravel, React, Node.js, Flutter, AWS, and AI/ML integration creating tailored solutions that meet your current needs and grow with your business. 💼 Core Services Full Stack Web Development – PHP, Laravel, React, Vue.js, Nuxt.js, Node.js, TypeScript, Angular Mobile App Development – Flutter, React Native, cross-platform, native iOS & Android Cloud Integration & Deployment – AWS, Google Cloud, serverless architecture, CI/CD pipelines AI/ML Integration – Hugging Face, Python, NLP, automation workflows E-Commerce Solutions – WooCommerce, Shopify, OpenCart, Magento, custom SaaS platforms Legacy System Modernisation – performance optimisation, security hardening, migration to cloud 🏆 Why Clients Hire Me Proven Track Record: 217+ successful projects and $100K+ earned on Upwork Enterprise Experience: Delivered solutions for Holland & Barrett, NHS, and other global brands Industry Expertise: Healthcare, E-learning, FinTech, Retail, SaaS, and more End-to-End Delivery: From initial concept to deployment, with ongoing support Strong Communication: Clear updates, quick responses, and deadline-focused delivery 📌 Technology Stack & Tools Languages & Frameworks: PHP, Laravel, JavaScript, TypeScript, React, Vue.js, Nuxt.js, Node.js, Flutter, Angular Databases: MySQL, MongoDB, SQL Server Cloud Platforms: AWS, Google Cloud Version Control: Git, SVN AI/ML Tools: Hugging Face, TensorFlow, Python 💡 Let’s Build Something Great Whether you need a full-stack partner for a new build, a mobile app expert to reach more customers, or cloud & AI-powered solutions to modernise your systems, I can help. 📩 Let’s discuss your project today and bring your vision to life.
Wasiq C. has worked .
Maksym B.
$33/hr
100% Job Success
$80K+ earned
Available now
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AI-Leveraged Delivery — ship 2× faster ⚡ Most developers say they're "fast." Then the staging environment shows up in week six. I do it differently — and I can show you the receipts. 🧾 ◆ 100% Job Success Score | Top Rated Plus | Full Stack Developer | React Next.js | Front End Developer ◆ I've been doing Software Development for 8+ years. In that time I've worked on everything from quick Landing Pages to multi-year SaaS platforms - and the thing that's stayed consistent is that clients get a working product, not a list of reasons why it's late. I work as a Full Stack Developer and Front End Developer, which means I'm comfortable owning the whole thing. React and Next.js are where I spend most of my time, but the stack goes deeper: Node.js, Python, PHP, Laravel, TypeScript, MongoDB, MySQL, PostgreSQL, SQL - whatever the project actually needs. I don't have a favourite technology. I have a favourite outcome: software that ships and works. ◆ FRONT-END DEVELOPMENT Front-End Development is my home base. I work with React, Next.js, Vue.js, Angular, JavaScript, TypeScript, HTML, HTML5, CSS, CSS 3, Bootstrap, jQuery, Redux, and Workbox.js for PWA builds. Web Design and Responsive Design aren't an afterthought - I work from Figma and Adobe Photoshop and care about how things look and feel across every device. PSD to HTML conversion, Front-End Development Framework setup, pixel-accurate implementation - all part of the job. ◆ FULL-STACK & BACK-END As a Full Stack Developer I connect the front end to a real backend: Node.js, Python, PHP, Laravel, NestJS, REST API, API Integration, SQL, MySQL, MongoDB, Database Architecture, Git, CI/CD. I've set up auth systems, payment flows via Stripe, third-party API Integration, and backend logic that doesn't fall over when traffic spikes. ◆ WHAT I BUILD ◆ SaaS platforms and Web Applications - React, Next.js, TypeScript, Redux, Tailwind, clean Web Design, fast load times, and Responsive Design that holds up on every screen ◆ AI-powered products - RAG pipelines, chatbots, OpenAI and Claude API Integration, document processing tools, pgvector retrieval ◆ E-commerce and WordPress - WooCommerce, custom themes and plugins, PSD to HTML, Web Development that converts ◆ Landing Pages and marketing sites - HTML5, CSS 3, Bootstrap, jQuery, Responsive Design, conversion-focused Web Design built for speed ◆ React Native mobile apps - cross-platform iOS and Android, shared codebase, App Store and Google Play ◆ Web Developer work across the full stack - API, Database Architecture, Laravel and PHP backends, Node.js services ◆ INDUSTRIES I've shipped projects across fintech and payments, healthcare and medical platforms, e-commerce and retail, EdTech, real estate, logistics and delivery, SaaS and B2B tools, marketplaces, social platforms, media and streaming, legal tech, travel and booking, fitness and wellness, and non-profit. Most verticals at this point. ◆ HOW I WORK I communicate early and directly. If scope is unclear I'll say so before we start, not after week four. If an approach won't work I'll tell you - and offer an alternative. Staging live in week one, weekly updates, clean code your next developer won't hate. ◆ RELATED EXPERTISE Full Stack Developer: web developer, react developer, wordpress developer, mobile app developer React Next.js: nestjs, workbox.js, web developer, front end developer Front End Developer: web developer, full stack developer, react developer, react ◆ READY TO START ASAP
Maksym B. has worked .
Coralsoft: Premium AI-Leveraged Software Development, Reliable Partner, Go-to-Market Strategy
Associated with
Coralsoft: Premium AI-Leveraged Software Development, Reliable Partner, Go-to-Market Strategy
$100K+
earned
Serhii P.
$28/hr
100% Job Success
$30K+ earned
Offers consultations
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👋 Need a Front end Developer React who can take ownership of your product and deliver polished, production ready experiences? I'm a Top Rated Front end Developer React with 12+ years of commercial experience building SaaS platforms, dashboards, customer portals, and modern web applications. With $30K+ earned, 1100+ hours worked, and a 100% Job Success Score, I focus on creating scalable solutions that combine excellent user experience with maintainable architecture. As a React Full Stack Developer, I've helped clients across 15+ countries transform ideas into successful products and scalable platforms. I've contributed to applications ranging from startup MVPs to products serving more than 5 million end-users worldwide. I've built mobile applications used by millions, SaaS products powering growing businesses, and streaming platforms delivering video and audio experiences in real time across multiple markets. As a React Full Stack Developer and Full Stack Developer React Node.js, I contribute across the entire product lifecycle from frontend architecture and user experience to backend integrations and feature delivery. My experience as a Full Stack Developer React Node.js allows me to support complex business requirements while building reliable systems designed for growth. 🏆 Why Clients Work With Me • Top Rated with 100% Job Success • 12+ years of commercial development experience • $30K+ earned and 1100+ hours on Upwork • Product ownership • Scalable solutions • Reliable delivery As a React Full Stack Developer, I focus on delivering practical solutions that balance technical excellence with real business objectives. 🚀 Services 📌 Front End Development As a Front end Developer React Node.js, I build responsive, highperformance applications using React, Next.js, TypeScript, modern frontend practices. • Dashboards & Admin Panels • Customer Portals • Internal Tools • Responsive Web Applications • Reusable UI Systems • Frontend Architecture & Refactoring 📌 Full Stack Product Development As a React Full Stack Developer and Full Stack Developer React Node.js, I work with growing teams to build and evolve SaaS products, MVPs, business applications. • SaaS Platforms • MVP Development • Feature Development • Product Modernization • Technical Discovery • End to End Implementation 📌 Backend Integrations As a Full Stack Developer React and Full Stack Developer React Node.js, I integrate backend services that support business workflows. • REST API • GraphQL • Authentication & Authorization • Payment Integrations • Third Party Services 📌 Product Growth As a Full Stack Developer React, I support products beyond launch through performance improvements, architecture enhancements, and ongoing development. 🔧 Technologies React • Next.js • TypeScript • JavaScript • Node.js • Redux • Tailwind CSS • REST API • • Supabase • Firebase • PostgreSQL • Docker • Stripe • AWS As a React Full Stack Developer and Full Stack Developer React Node.js, I build applications using clean architecture, reusable code patterns, and development practices designed to support long-term business growth. 💼 Selected Experience 🏥 Healthcare Platform Worked on healthcare applications focused on improving operational workflows and user experience. As a Front end Developer React, I developed responsive interfaces, integrated APIs, optimized user journeys, and delivered features supporting both medical staff and end users. 🚚 Cargo & Logistics Platform As a React Full Stack Developer and Full Stack Developer React Node.js, I built dashboards, shipment management interfaces, workflow solutions, and integrations supporting logistics operations and transportation processes. 👥 Recruitment & Hiring Platform As a Full Stack Developer React, I developed candidate management dashboards, search and filtering systems, workflow features, and integrations supporting recruitment and hiring processes. 📌 Additional Expertise As a Front end Developer React, I collaborate closely with founders, product managers, and stakeholders to transform business requirements into intuitive user experiences and scalable technical solutions. As a React Full Stack Developer I have experience working with existing codebases as well as building products from the ground up. My background as a Full Stack Developer React Node.js includes implementing secure authentication flows, integrating payment systems, optimizing application performance, and supporting products through multiple stages of growth. 📌 Industries Healthcare, logistics, recruitment, booking platforms, E-commerce As a Full Stack Developer React Node.js, I enjoy partnering with ambitious teams building products designed to scale. 💡 What Clients Value Clients value my ability to contribute as a Front end Developer React while understanding the broader product vision and delivering results as a Full Stack Developer React. If you need a Front end Developer React Node.js, let's connect.
Serhii P. has worked .
vymir42
Associated with
vymir42
$1K+
earned
$30/hr
100% Job Success
$30K+ earned
Available now
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Senior Frontend / Fullstack JavaScript Engineer with strong experience in building scalable web applications using React, Next.js, Node.js, and TypeScript. I focus on clean architecture, maintainable code, performance, accessibility, and delivering reliable UI solutions for complex platforms. Frontend Expertise I build fast, responsive, accessible interfaces using React and Next.js. Experienced in component architecture, state management (Redux Toolkit, RTK Query, Zustand), design systems, and performance optimization. Skilled in Tailwind CSS, Material UI, Ant Design, and modern frontend tooling. Full Stack Expertise I develop backend services and APIs using Node.js, NestJS, and Express.js. Experienced with REST/GraphQL integrations, authentication flows, data handling, and building dashboards and internal tools that support business operations. Key Skills & Technologies Frontend React • Next.js • TypeScript • JavaScript (ES6+) Redux Toolkit • RTK Query • Zustand • React Query HTML5 • CSS3 • SCSS/Sass • Styled‑Components Tailwind CSS • Material UI • Ant Design • Chakra UI Accessibility (WCAG) • Responsive Design • Performance Optimization Microfrontends • Jest • React Testing Library • Cypress Backend & API Node.js • NestJS • Express.js REST API • GraphQL PostgreSQL • MongoDB DevOps & Infrastructure Docker • Kubernetes AWS (Lambda, S3, CloudWatch, Glue) CI/CD (GitHub Actions, GitLab CI, Bitbucket Pipelines) Tools & Workflow Webpack • Vite • Axios • Swagger • Postman Git • GitHub • GitLab • Bitbucket ESLint • Prettier • Agile (Scrum, Kanban)
Mykola Z. has worked .
Supreet K.
$13/hr
99% Job Success
$40K+ earned
Offers consultations
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✦I don’t just “build stores” — I create revenue-focused Shopify solutions that load fast, convert better, and scale smoothly✦ I am a seasoned Shopify Developer specializing in creating high-performance Shopify stores that increase conversion rates and improve store performance. With expertise in Shopify Plus, I offer comprehensive solutions including theme customization, Shopify app development, and seamless store migration. My skills in Liquid coding, Shopify APIs, and technologies like HTML5, CSS3, and JavaScript ensure scalable and efficient e-commerce solutions." ✅𝗪𝗵𝗮𝘁 𝗜 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲 𝗜𝗻 ✔Shopify Store Development (End-to-End) ✔Custom Shopify Apps (Public & Private) ✔Shopify Plus Development & Optimization ✔Theme Customization & Performance Optimization ✔Store Migration to Shopify / Shopify Plus ✔Conversion Rate Optimization (CRO) ✔Shopify API & Third-Party Integrations 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 & 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 (𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐅𝐨𝐜𝐮𝐬): ✦ Shopify (Liquid, Online Store 2.0, Shopify Plus, Shopify CLI) ✦ Themes (Dawn, Impulse, Prestige, Turbo, Booster) ✦ Languages (HTML5, CSS3, JavaScript, JSON) ✦ Theme Customization & Custom Theme Development ✦ Shopify APIs (Admin API, Storefront API, REST & GraphQL) ✦ App Integrations (Klaviyo, ReCharge, Judge.me, Zapier, Make, ChatGPT) ✦ Figma to Shopify (Pixel-Perfect Conversion) ✦ SEO, Speed Optimization & Shopify Security Tools ✦ Private & Pubic Shopify App Development Tags: #Expert Shopify Developer #Web Design # Shopify Web Design # Ecommerce Web Design #Shopify #ShopifyDeveloper #ShopifyTheme #ShopifyThemeDeveloper #ShopifyThemeDesigner #ShopifyWebsiteDesign #ShopifyDesigner #ShopifyExpert #ShopifySpecialist #ShopifyAppDeveloper #ShopifyPublicApp #ShopifyPrivateApp #ShopifyStoreSetup #ShopifyMigration #ShopifyStoreRedesign #ShopifyCustomization #ShopifySpeedOptimization #ShopifyPlus #ShopifyDropshipping #ShopifySEO #ShopifyCRO #Ecommerce #EcommerceDeveloper #ShopifyLandingPage #ShopifySalesFunnel #ShopifyPaymentIntegration #ShopifyThirdPartyApps #ShopifyAPI #LiquidDeveloper #ShopifyFrontEnd #ShopifyBackEnd #HTML #CSS #JavaScript #Liquid #ShopifyMetafields #ShopifyAutomation #ShopifyBugFix #ShopifyMaintenance #ShopifyConsultant #ShopifySupport #ShopifyUXUI #ShopifyResponsiveDesign #ShopifyBranding #WebDesign #ShopifyStoreAudit #ShopifyCustomSections #ShopifyCustomCode #ShopifyProductPage #ShopifyCollectionPage #ShopifyStoreOptimization #ShopifyInternationalization #ShopifyReports #ShopifyAnalytics.
Supreet K. has worked .
My Virtual Teams Pvt Ltd
Associated with
My Virtual Teams Pvt Ltd
$1M+
earned
$25/hr
78% Job Success
$10K+ earned
Available now
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⬜️ Full Stack Developer React Node helping SaaS products grow and scale ⬜️ React developer available for LONG-TERM partnerships ⬜️ Built 10+ SaaS products from idea to stable production ⬜️ No quick patches ❗️Focused on serious projects with long-term value I am a Full Stack Developer React Node who develop full stack applications using modern technologies like React, Next.js, Node.js, and Python. My focus is full stack developer react node on building stable, scalable SaaS platforms, business tools, and customer-facing senior web developer applications that work reliably under real-world usage. Who Am I? SaaS Developer ReactJS: ✔️ Full SaaS JavaScript products from idea to production ✔️ User authentication, dashboards, subscriptions, and admin panels ✔️ Multi-tenant systems and scalable backend architecture ✔️ Stripe and payment integrations Web Apps Full Stack Developer React Node: ✔️ Custom web platforms using React and Next.js ✔️ Complex senior python developer dashboards, internal tools, and client portals ✔️ Real-time features using WebSockets ✔️ API integrations with react native developer third-party services Front End React Developer: ✔️ Convert Figma and design files into clean, production-ready frontend code ✔️ Optimize front end developer react performance, loading speed, and overall user experience ✔️ Develop dashboards, SaaS interfaces, admin panels, and client-facing applications How I work? I focus on writing clean, maintainable code and ux designer backend systems that scale properly. My goal is mobile app developer to build applications that remain stable as user load grows and new features are added. I communicate clearly, meet deadlines react developer, and treat every project as a long-term product, not just a quick implementation. As a full stack developer react node, front end developer, and frontend react developer, I build: ✔️ SaaS dashboards ✔️ admin panels ✔️ complex interfaces ✔️ real-time data systems Using modern frameworks like react, react js, and javascript, combined with scalable backend architecture. Tech Stack Frontend ◾️ React ◾️ Next.js ◾️ React Native ◾️ TypeScript ◾️ Redux ◾️ React Query ◾️ Tailwind ◾️ MUI ◾️ MERN stack Backend ◾️ Node.js ◾️ NestJS ◾️ Express ◾️ Python ◾️ FastAPI ◾️ REST API ◾️ GraphQL ◾️ WebSockets Databases ◾️ PostgreSQL ◾️ MongoDB ◾️ Supabase ◾️ Firebase ◾️ Redis ◾️ MySQL Infrastructure ◾️ Docker ◾️ AWS ◾️ Vercel ◾️ GitHub Actions ◾️ Railway Focus I am a full stack developer react node ( software developer ) who focuses on modern, production-ready stacks and don’t take projects who need wordpress developer, project manager, saas marketing to built with Swift, Angular, Ruby on Rails, WordPress, Laravel vue, PHP, Vue, or Webflow, Seo keyword research, gps, flutter, link building, copywriter, website traffic, etsy marketing Click Invite and share a brief description of your project if you are looking for a full stack developer react node, mern stack developer, react developer, or saas developer to help build a serious long-term product.
Maksym S. has worked .
Viso
Associated with
Viso
$100K+
earned