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Andriy V.
$35/hr
100% Job Success
$800K+ earned
Available now
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Full stack developer with 10 years of experience | top 1% on Upwork (Expert-Vetted) ✅ I turn ideas into real applications your users can depend on 💡 Recent work: 🔹 Product Architect at Upwork, leading a team of 100+ engineers within Upwork's Engineering Talent Cloud 🔹 Led frontend for Autobound's AI sales automation platform - grew from a single-engineer startup to $4M raised and millions in revenue (Vue.js/Nuxt + Chrome extension + micro-frontends) 🔹 Built full stack for Augmento's AR/VR product - used by 1,000+ brands and 100K users across retail and real estate 🔹 Migrated DriverHRIS - 1,000+ screens from Vue 2/.NET to Vue 3 + Node.js microservices, with a 10x (1,000%) performance gain 🔹 Rebuilt Wawibox (German dental marketplace) - full Nuxt 2 → Nuxt 3 SSR → Nuxt 4 migration, 80% faster load time I also co-founded Softonix, a 25-engineer Vue.js | Node dev team in Lviv 🇺🇦 - so if your project grows past one developer, I can scale the team without handing you off to strangers) 🎁 Something extra: I'm running free dev + AI-readiness audits for a few teams right now. Send me your repo or a quick walkthrough of your delivery flow (Figma → Jira → GitHub → review), and I'll come back with: 🔍 where your velocity is actually leaking - review bottlenecks, rework, estimates that never hold 🏗️ how your codebase really looks on quality, architecture, and performance 🤖 how much more your team could be getting out of AI than they are today You keep the findings whether we end up working together or not! Want to scope something, or should I just run the audit first? I usually reply within an hour 🚀 Why should you hire me as a Full Stack Developer? ▪ 200+ successful projects across fintech, healthcare, e-commerce, HR tech, logistics, and AI. ▪ 100+ happy clients who have seen tangible business growth. ▪ Expert in Vue.js, Nuxt, React, Next.js, Node.js, TypeScript, .NET, PostgreSQL, AWS. ▪ 500+ API endpoints and 50+ microservices designed, documented, and shipped to production. ▪ 30+ legacy rescues and framework migrations completed with zero downtime. ▪ 60+ production applications launched and still running - some for 8+ years. ▪ Delivered investor-ready MVPs in 4-6 weeks for urgent launches and funding rounds. ▪ Built cross-platform products for web, mobile (iOS & Android), and desktop on one shared codebase. ▪ 100+ code audits and architecture reviews delivered for founders, CTOs, and investors. ▪ 40+ engineers hired, trained, and mentored over the last 6 years. ▪ 100% Job Success across 10 years of client work.
Andriy V. has worked .
Softonix
Associated with
Softonix
$1M+
earned
Juliya P.
$35/hr
100% Job Success
$40K+ earned
Available now
Offers consultations
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👋 Full Stack Developer (React, Node.js, TypeScript) for SaaS platforms, MVPs, and two-sided marketplaces. Part of a full-cycle delivery team - on Upwork since Sep 2010, 14 years in, 300+ contracts shipped, $700K+ earned, 100% Job Success, Top Rated. You get one developer who owns the whole system, plus an agency bench behind her. 💡 Hiring a full stack developer should not mean hiring a React developer and a Node developer in one body. The value is connection: I design how React, the Node.js backend, the database, and business logic move together from day one, so the front end never guesses what the backend means and the backend never returns data the front end does not use. Across 150+ products, that is what keeps React and Node from drifting apart. 🎯 WHAT YOU GET ➜ One accountable full stack developer who scopes honestly, gives a realistic estimate, and ships production-ready code - not two separate implementations stitched together. ➜ A web developer and backend developer in one: I diagnose and fix root causes (slow Node endpoints, CORS and auth errors, dropped env vars, broken React + Node integration), optimize performance, and deliver seamless integration. ➜ A team behind me. If the project grows past one developer, we scale without handing you off to strangers (19,765 hours of high-quality coding delivered). ➜ SaaS: multi-tenant architecture, billing and subscription logic, admin tools, webhook handling, auth and permissions - built for growth in e-learning, real estate, healthcare, fintech, and mobility. ➜ Marketplaces: Stripe Connect flows, booking and availability logic, operator dashboards, multi-role permissions, and complex search, designed as one workflow (buyer, seller, payments, operations). ➜ Backend developer work: REST API design, Express and NestJS services, PostgreSQL and MongoDB data modeling, Redis, event-driven and serverless functions, AWS and Vercel deploys. ➜ Existing codebases: I audit for stability, performance, and code quality, then make step-by-step improvements - no rebuild unless it is truly necessary. ➜ MVPs: a typical V1 ships in 5-6 weeks. One early build I helped ship went on to raise $3M. ➜ Front end: I turn UX designer handoffs into pixel-accurate, responsive UI - React Query strategy, shared TypeScript types, and state that matches the API. 🤖 I use AI coding tools the right way: faster scaffolding, migration prep, and reviews, while architecture, security, data modeling, and API contracts stay human-judged. As a JavaScript developer and software developer at core, I also take python developer work for backend services or data scripts when a project needs it. 🧩 Stack: React, Node.js (nodejs), TypeScript, Express, NestJS, PostgreSQL, MongoDB, Redis, Stripe, AWS, Vercel, Docker, CI/CD. 📊 14 years on Upwork ▪ 300+ contracts ▪ $700K+ earned ▪ 100% Job Success ▪ Top Rated ▪ 150+ products live ▪ 50+ countries ▪ 5,000+ end users on delivered platforms ▪ one MVP scaled to a $3M raise. Roles I take: full stack developer, full stack web developer, react developer, node developer, nodejs developer, backend developer, javascript developer, web developer, software developer, full stack react node developer. 📩 Need a full stack developer for a SaaS platform, marketplace, custom web app, or MVP -- or a backend developer to fix, optimize, and ship an existing React + Node system? Send a message with what you are building and I will give you a direct, practical view of what is involved, fixed-price or hourly.
Juliya P. has worked .
Roobykon | Digital marketplace development company | Custom web development
Associated with
Roobykon | Digital marketplace development company | Custom web development
$700K+
earned
Vasyl K.
$35/hr
100% Job Success
$60K+ earned
Available now
Offers consultations
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🚀 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗛𝗣 𝗟𝗮𝗿𝗮𝘃𝗲𝗹 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 · 𝟭𝟬𝟬% 𝗝𝗦𝗦 · 𝟭,𝟰𝟬𝟬+ 𝗵𝗿𝘀 · 𝟴 𝘆𝗿𝘀 𝗶𝗻 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 Platforms I build don't require rewrites in 18 months. They handle real operational complexity from day one. Click "𝗛𝗶𝗿𝗲" 𝗼𝗿 "𝗜𝗻𝘃𝗶𝘁𝗲" to work with a PHP Laravel Developer who owns the architecture, not just the tickets. 📍 Lifetime warranty on every feature - I fix what breaks on my side. No questions asked. 📍 PHP Developer and Laravel Developer. 8 years of production-grade PHP Laravel and Symfony delivery. 📍 Full Stack Developer PHP and Full Stack Developer Laravel - E-Commerce, ERP, Logistics SaaS for clients in the US, UK, and EU. 🫵 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗚𝗘𝗧 ✔️ As a PHP Developer and Laravel Developer - multi-role SaaS, complex permission layers, API integrations that hold up under production load. ✔️ As a Full Stack Developer PHP and Full Stack Developer Laravel - end-to-end from Database Architecture and Back-End Development to Vue.js frontends. 30–40% faster delivery than split-role teams. ✔️ As a PHP Laravel Developer for E-Commerce - order pipelines, inventory modules, payment integration, ERP logic. Clean enough that the next developer won't hate you. ✔️ As a Full Stack Developer Laravel for Logistics SaaS - last-mile tracking, KPI dashboards, API integration, fund management. 25–35% lower operational overhead post-launch. 🔥 𝗔𝗖𝗛𝗜𝗘𝗩𝗘𝗠𝗘𝗡𝗧𝗦 ✔️ 8 years · 1,400+ hours · Top Rated as a PHP Laravel Developer - E-Commerce, ERP, Logistics SaaS, FinTech across US, UK, and EU. ✔️ 100% satisfaction as a Full Stack Developer PHP - lifetime warranty on every codebase. ✔️ 15+ systems as a Full Stack Developer Laravel and Laravel Developer - multi-role access, order pipelines, integrations, dashboards built for operators. ✔️ 90% faster order processing · 80% lower manager workload via Full Stack Developer Laravel ERP and workflow automation as a PHP Laravel Developer. ✔️ 5–8 weeks faster time-to-launch through clean Software Architecture & Design and Full Stack Developer PHP ownership from day one. 🚚 𝗪𝗛𝗘𝗥𝗘 𝗜 𝗗𝗘𝗟𝗜𝗩𝗘𝗥 ✔️ As a PHP Laravel Developer and PHP Developer for SaaS - multi-role platforms, AI-powered scoring, automated reporting. 15+ products, 25–40% lower support load. ✔️ As a Full Stack Developer PHP - Back-End Development, API Integration, Vue.js, PostgreSQL backends for high data volumes. ✔️ As a Full Stack Ecommerce and flutter laravel-ready Laravel Shopify developer with php react frontends - supply chain, selling automation, filtration. 30–45% better conversion. ✔️ As a Full Stack Developer Laravel for Web Application development - payment systems, CRMs, logistics API integration. Every connection documented and maintainable. ✔️ As a PHP Developer and PHP Laravel Developer - 6–18 month engagements, php laravel react and laravel vue upgrades, Full-Stack Development that scales. 🏆 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗬 𝗩𝗘𝗥𝗧𝗜𝗖𝗔𝗟𝗦 ✔️ E-Commerce & mobile app developer platforms - As a Full Stack Developer PHP and PHP Laravel Developer: order tracking, payment, full stack seo-ready architecture, recommendations. ✔️ Logistics - As a Full Stack Developer Laravel and PHP Laravel Developer: last-mile tracking, KPI dashboards, full stack laravel ecommerce + full stack developer shopify integrations. ✔️ ERP & Operations - As a Full Stack Developer Laravel and PHP Developer: inventory, order management. 40–70% less manual work through clean Database Architecture. ✔️ FinTech - As a PHP Laravel Developer and PHP Developer: bank statement processing, AI debtor scoring, audit-ready data flows. ✔️ AI-Powered SaaS - As a Full Stack Developer PHP: AI scoring into production Laravel platforms. ⚒️ 𝗛𝗢𝗪 𝗜 𝗕𝗨𝗜𝗟𝗗 ✔️ As a PHP Laravel Developer - Laravel, Symfony, Custom PHP, PHP Script, CodeIgniter with PHPUnit coverage and Software Architecture & Design from day one. ✔️ As a Full Stack Developer PHP, wordpress developer and web developer-aware engineer - Vue.js, JavaScript, HTML, HTML5, CSS, CSS3, Bootstrap, Tailwind CSS, jQuery, React, WordPress where it fits. ✔️ As a Full Stack Developer Laravel for data systems - PostgreSQL, MySQL, SQL, Database Architecture, Redis, Docker. PHP MySQL and php symfony stacks for scale, Software Debugging, and Web Design. ✔️ As a Web Application and Web Development expert - REST API, API Integration, Git, Angular, Node.js, python developer tools, react developer workflows, Back-End Development, Shopify, Desktop Application, Full-Stack Development, Software Development. 📊 𝗔𝗧 𝗔 𝗚𝗟𝗔𝗡𝗖𝗘 ✔️ Full Stack Developer PHP · Full Stack Developer Laravel · 1,000+ hrs · 100% JSS. ✔️ 15+ production platforms · 8 years · US, UK, EU · 30+ hrs/week. 🔹 Clean, documented code your next developer will thank you for. 🔹 Lifetime warranty - I fix what breaks on my side, no questions asked. Hire a PHP Developer and Full Stack Developer PHP who delivers. 👉 𝗖𝗹𝗶𝗰𝗸 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 - 𝗹𝗲𝘁'𝘀 𝘁𝗮𝗹𝗸.
Vasyl K. has worked .
SIA "Snotor"
Associated with
SIA "Snotor"
$300K+
earned
Dmitriy Z.
$45/hr
100% Job Success
$400K+ earned
Offers consultations
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I provide long-running Full Stack Developer services covering SaaS, CRM, marketplaces and admin tools - 200+ Full Stack Developer, Front End Developer and Backend Developer projects shipped over 20+ years, 7,000+ hours tracked. Why hire my Full Stack Developer (s): - a 100% Job Success Score, Top Rated Plus Full Stack Developer track record - long-term Full Stack Developer clients staying 3 - 10+ years - Full Stack Developer, Front End Developer and Backend Developer work in one pair of hands, no vendor handoffs My Full Stack Developer focus is CRM, ERP, admin systems and B2B platforms with RBAC, audit trails and Stripe billing - Full Stack Developer builds serving 5 - 10M monthly users with databases holding 100M+ user records. Clients come to a Full Stack Developer instead of splitting a project between a Front End Developer shop and a Backend Developer contractor, so QA and deployment stay inside one Full Stack Developer workflow. The Full Stack Developer stack is React, Next.js, Vue, PHP, Node.js, MySQL and Redis, on AWS, GCP and Heroku infrastructure sized for peak loads up to 100K users per second. Adjacent Full Stack Developer tracks: Full Stack Web Developer rebuilds, Python Full Stack Developer pairings for data work, Full Stack Developer AI on a codebase already in production, and Full Stack Developer React funnels. My Front End Developer track is where a product stops looking like an internal tool - dashboards, admin panels, multi-tenant SaaS consoles and marketing funnels, with pages rendering in under 2 seconds. A Front End Developer React build is the default in a Full Stack Developer engagement: React with Next.js, Tailwind and Redux, plus Front End Developer Next.js server rendering when SEO carries the traffic. My Front End Developer also ships Vue 3 with Pinia when a project already runs a PHP backend. Clients searching for a Front End Web Developer or a React Developer want one Front End Developer who owns component architecture, state and API contracts instead of styling someone else's markup. Demand for Front End Developer AI work grows every quarter, with streaming responses, chat surfaces and agent panels wired into an app that already has users. My Backend Developer work carries the load underneath - REST and GraphQL APIs, queues, background jobs, reporting and integrations. A Node.js Backend Developer service is the usual answer when real-time traffic or webhook throughput matters, and a Backend Developer Nest.js structure keeps a growing API navigable. On the PHP side the same Backend Developer covers Laravel and custom PHP with MySQL, Redis and OpenSearch. Where a client wants a JavaScript backend end to end, backend NodeJS services sit behind the same Next.js frontend, and a Python Developer joins for data pipelines and AI. My Backend Developer also inherits legacy systems: a WordPress Developer migration out of Gutenberg into a custom platform, an API that has to keep answering while it gets replaced. Clients search by role, and the same engineers field all of them - a Full Stack Developer, a Backend Developer or a Software Developer on the server side, a Front End Developer, React Developer or Vue.js Developer on the client side, and PHP Developer, CRM Developer or ERP Developer profiles. When a build needs a Mobile App Developer alongside the web product, my engineers ship the app on the same API. As COO I oversee every Full Stack Developer engagement - I stay close to the discovery, match the right Full Stack Developer engineers and own the commercial side. My Front End Developer and Backend Developer engineers own the code. Clients hire me for Full Stack Developer work when they need: - a Full Stack Developer who owns frontend, backend, infrastructure and deployment - a Front End Developer for a dashboard, console or funnel that has to feel fast - a Backend Developer for APIs, integrations and reporting that stay predictable under load Recent Full Stack Developer work I shipped: - Built a Full Stack Developer identity-verification SaaS on a PHP API with Node.js real-time on MySQL and Redis - 4K+ DAU, 1M+ checks through a public Developer API. - Scaled a multi-currency voting SaaS to 2M+ users across 10 countries with vote locking and Stripe payouts, $2.5M+ revenue. - Grew a B2B luxury asset marketplace with 15 engineers - React, Next.js, PostgreSQL, OpenSearch, Stripe - to 26K MAU, 75% MoM growth, 25% engagement. - Shipped a creator-monetization SaaS with Stripe Connect, Twilio and Mailgun - 0% fee on donations, 9% only on marketplace sales. - Delivered a Full Stack Developer medical-center ERP with registration, cashier, doctor and lab modules for 60 concurrent staff and 500 patients a day. - Rebuilt a CRM for a photography business - legacy WordPress and Gutenberg ripped out, briefs and asset pipelines re-routed into a custom platform. Need a Full Stack Developer who covers the Front End Developer and Backend Developer sides and stays long-term - let's talk.
Dmitriy Z. has worked .
abz.agency®
Associated with
abz.agency®
$800K+
earned
Yuliia U.
$35/hr
93% Job Success
$300K+ earned
Available now
Offers consultations
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👋 Hi, I'm Julia - your reliable tech partner ✅ 9+ years in software development as React Developer , React Native developer , Full Stack React Node ✅ 41+ jobs on UpWork solely in React , Next , Node js and React Native stack as Full Stack React developer, Node js developer ✅ 155+ web and mobile projects delivered ✅ 20,500+ Upwork hours in React / Next.js / Node.js / React Native ✅ 75% repeat clients - partnerships lasting 6-18+ months ✅ 40+ MVPs released, 5-8 weeks from MVP to pilot launch with React Native , React developer , Node js developer ✅ 35+ in-house engineers, matching in 24 hours or less ✅ 2-week trial period - you risk nothing ✅ Products we support include platforms with 5M+ daily users My team helps companies hire in-house, CTO-approved engineers who join fast, take ownership, and deliver production-ready software. My goal: save up to 40% of your budget and still get a market-ready, stable, scalable product. Why teams choose us: 🔹 In-house, not freelance-marketplace roulette. Every engineer is personally screened and approved by our CTO before joining your project. 🔹 Speed without chaos. Engineer matched within 24h, weekly demos, code review and QA on every delivery. 🔹 Ownership. Our engineers don't wait for tickets - they flag risks, suggest architecture improvements, and drive the product forward. 📌 How we work: Discovery & technical planning → engineer matching within 24h → 2-week trial → weekly demos and reports → CTO-approved delivery with code review and QA → long-term support after launch. 🚀 React / Next.js / Full Stack We build SaaS platforms, marketplaces, dashboards, admin panels, CRMs, and scalable web apps as react developer, react js developer, nextjs developer, next js developer, web app developer react, full stack developer react node, and full stack developer supabase react. Stack: React, Next.js, Node.js, TypeScript, Supabase, PostgreSQL, Firebase, MongoDB, REST API, GraphQL, Stripe, OAuth, WebSockets, AWS, Vercel, Docker. MVP development, legacy code takeover, architecture modernization, Core Web Vitals, API integrations, payments, auth, subscriptions, user roles, production launch. A strong fit if you need a react developer, frontend developer react, web developer, full stack developer, mern developer, or backend engineer. 📱 React Native / Mobile iOS and Android apps as react native developer, react native developer expo, react native app developer, mobile app developer. React Native, Expo, Firebase, Supabase, Node.js, API-driven architecture. App takeover, maintenance, push notifications, App Store / Google Play releases, payments, backend integrations. Mixed environments: flutter developer, android developer. 🤖 AI SaaS / AI Development 25+ AI products and features shipped: AI SaaS, AI MVP, AI chatbot development, AI agent development, RAG chatbot, copilots. Stack: OpenAI API, Claude API, LLMs, RAG, prompt engineering, Generative AI, Python, FastAPI, pgvector, web scraping, automation, AI workflow validation. 🧩 Mixed-Stack Support Core focus: React, Next.js, Node.js, React Native, TypeScript, Supabase, AI. We also support wordpress, vue, angular, python developer, scala developer, and other web/mobile technologies. 🏆 Industries 📦 Logistics - 5+ projects: tracking, shipment dashboards, carrier/shipper workflows, maps 🏥 HealthTech - 4+ projects: medical booking, clinic platforms, patient flows 🛒 Marketplaces & E-commerce - 15+ projects: multi-vendor, Stripe, subscriptions, bidding, complex search 🏠 PropTech - 5+ projects: listings, booking flows, agent dashboards, rental platforms 🤖 AI Startups - 25+ products: chatbots, agents, copilots, OpenAI / Claude integrations 💰 FinTech - 3+ projects: Stripe Connect, billing, payment flows, invoicing 🎮 Gaming - 5+ projects, incl. 2 major global gaming brands: dashboards, analytics, real-time 📚 EdTech - 5+ projects: student dashboards, progress tracking, content platforms 📣 MarTech - 1 global market-leading project: analytics, segmentation, workflows ⚽ SportsTech - 10+ projects: live data, events, rankings, stats, mobile apps 🚀 Building a SaaS, MVP, marketplace, React app, Next.js platform, React Native app, or AI product? Click "Invite" or "Hire" - I'll help you clear the estimate or discovery phase within 24 hours or less.
Yuliia U. has worked .
Koitechs 💡 JavaScript experts 💡 React. js + Node. js
Associated with
Koitechs 💡 JavaScript experts 💡 React. js + Node. js
$700K+
earned
Arsene O.
$25/hr
100% Job Success
$80K+ earned
Start of list.
End of list.
⚙️ Building Scalable Digital Products with React, Node.js & Python ⚙️ 📅 6+ years of experience 📦 40+ completed projects 💰 $9M+ generated for clients 🌍 Platforms with 80,000+ active users I’m a Full Stack Developer and Full Stack React Developer with 6+ years of experience building scalable web applications. As a React Developer, React.js Developer, and Next.js Developer, I deliver modern frontend systems combined with powerful backend architectures. My backend expertise spans Node.js, Python, Django, and FastAPI, allowing me to build both high-performance APIs and enterprise-grade systems. I work as a Node.js Developer, Python Developer, Django Developer, and FastAPI Developer, depending on project requirements. As a Full Stack Developer, I frequently combine React.js, Node.js, Python, Django, and FastAPI to deliver complete end-to-end solutions. 🚀 Full Stack React, Node.js & Python Engineering I work as a Full Stack Developer, Full Stack React Developer, and React Node.js Developer, building scalable applications with React.js, Next.js (Nextjs), and robust backend systems powered by Node.js, Python, Django, and FastAPI. I use Node.js daily for backend services, APIs, and real-time systems. As a Node.js Developer, I build scalable microservices and backend logic that integrate seamlessly with frontend applications. Alongside Node.js, I use Python, Django, and FastAPI for more complex backend architectures. Django is ideal for structured systems, while FastAPI is perfect for high-performance asynchronous APIs. My experience includes combining Node.js, Python, Django, and FastAPI in production environments where performance and scalability are critical. As a Full Stack Developer and Node.js Developer, I focus on: ⚙️ Improving performance (LCP/TTI) by 2–3x 📊 Increasing conversions by 25–35% 🚀 Scaling apps to 100K+ users 🧠 Backend Development with Node.js, Python, Django & FastAPI As a Node.js Developer, Python Developer, Django Developer, and FastAPI Developer, I build APIs, backend systems, and scalable services. I use Node.js for real-time systems, event-driven architectures, and high-performance APIs. I also use Python, Django, and FastAPI to build structured backend platforms and high-speed microservices. In multiple projects, I combined Node.js with Python, Django, and FastAPI to create hybrid backend ecosystems. 🗄 Databases & Backend Architecture As a Full Stack Developer and Node.js Developer, I work with SQL, PostgreSQL, MySQL, and MongoDB to design scalable systems. I frequently integrate Node.js with PostgreSQL and MongoDB, and also use Python, Django, and FastAPI with relational databases for enterprise applications. I also use Supabase (PostgreSQL-based backend) alongside Node.js, Python, Django, and FastAPI. 🧠 Built systems using Node.js, Python, Django, and FastAPI 🔄 Designed APIs with Node.js and FastAPI 💸 Reduced backend costs with optimized Node.js services 🚀 Improved system performance using Node.js and Python 🎨 Frontend React & Next.js With 6+ years as a React Developer, React.js Developer, and Frontend React Developer, I build fast UI systems using React.js and Next.js (Nextjs). As a Full Stack Developer, I connect frontend applications with backend systems powered by Node.js, Python, Django, and FastAPI. 📱 React Native & Cross-Platform Apps As a React Native Developer, alongside my work as a Full Stack Developer and Node.js Developer, I build mobile applications connected to backend systems powered by Node.js, Python, Django, and FastAPI. 📱 10+ apps delivered 👥 100K+ users supported 💳 SaaS, Payments & Scalable Platforms Most backend logic in these systems is built with Node.js, while complex services often use Python, Django, and FastAPI. ⚙️ Additional Expertise 40+ projects as a Full Stack Developer and Full Stack React Developer Strong experience as a Node.js Developer, Python Developer, Django Developer, and FastAPI Developer Deep expertise in Node.js, Python, Django, and FastAPI backend systems Strong frontend skills with React.js and Next.js Experience with MongoDB, SQL, PostgreSQL, and MySQL Experience with Supabase and real-time systems AI integrations (OpenAI, ChatGPT) using Node.js and Python Built dashboards, PWAs, and SaaS platforms using Node.js, Django, and FastAPI 🤝 Why Work With Me Strong Full Stack Developer with deep backend expertise in Node.js, Python, Django, and FastAPI Experienced React Developer and Full Stack React Developer Skilled in building scalable backend systems using Node.js and Python Strong architecture thinking across frontend and backend If you’re looking for a Full Stack Developer, Node.js Developer, Python Developer, Django Developer, or FastAPI Developer with strong experience in React.js and Next.js — let’s connect. 👉 Click "Invite" or "Hire" and tell me about your project.
Arsene O. has worked .
Golden Team Soft
Associated with
Golden Team Soft
$6M+
earned
Alexey D.
$45/hr
100% Job Success
$100K+ earned
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𝐇𝐞𝐲 𝐭𝐡𝐞𝐫𝐞! 👋 𝐈’𝐦 𝐀𝐥𝐞𝐱𝐞𝐲, a Senior Full Stack Web Developer specializing in MERN and .NET development for modern web platforms, SaaS products, and scalable business applications. As a Senior Full Stack Web Developer, I work across the entire development cycle building reliable frontend and backend systems using MERN stack technologies and .NET backend solutions. If you're looking for a Senior Full Stack Web Developer with strong experience in MERN and .NET, who can build scalable and production ready platforms, you're in the right place. I help companies turn product ideas into fully working platforms using MERN architecture and .NET backend services, delivering clean, maintainable code and stable long term solutions. 🔸 Clean and scalable architecture 🔸 Strong backend logic with .NET 🔸 Modern frontend development with MERN stack 🔸 Clear communication and reliable delivery 🚀 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 As a Senior Full Stack Web Developer, I build complex web platforms using MERN and .NET technologies, including: • SaaS platforms and business applications • Admin dashboards and management systems • Marketplaces and booking platforms • Real estate and property management systems • Subscription based web products • High performance web applications built with MERN and .NET My experience as a Senior Full Stack Web Developer working with MERN and .NET allows me to build systems that are stable, scalable, and ready for real production use. ⚙️ 𝐖𝐡𝐚𝐭 𝐈 𝐂𝐚𝐧 𝐁𝐮𝐢𝐥𝐝 𝐅𝐨𝐫 𝐘𝐨𝐮 As a Senior Full Stack Web Developer specializing in MERN and .NET, I can help build complete platforms including: ✅ Full stack web applications using MERN and .NET ✅ SaaS platforms with complex business logic ✅ Admin panels and dashboards ✅ REST APIs built with .NET backend architecture ✅ Scalable backend services using .NET ✅ Modern responsive frontend applications built with MERN stack technologies ✅ Marketplace and booking platforms ✅ Payment integrations and subscription systems 🧰 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 Frontend:React | Next.js | JavaScript | TypeScript Backend: Node.js | Express.js | .NET ASP.NET Database: MongoDB | PostgreSQL | SQL Server Tools: Docker | Git | REST APIs | Cloud platforms 🌟 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞 Senior level development experience Strong expertise in MERN and .NET development Ability to handle both frontend and backend architecture Experience building scalable SaaS platforms Focus on clean, maintainable production code If you're looking for a Senior Full Stack Web Developer with strong expertise in MERN and .NET, feel free to reach out. 💬 Send me a message and let's discuss your project.
Acvence
Associated with
Acvence
$600K+
earned
Vladislav S.
$25/hr
100% Job Success
$200K+ earned
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🔥 Driving Real Results with React & Full Stack Development 🔥 🏆 10+ years of experience 🚀 60+ completed projects 💸 $10M+ generated for clients ⭐ Apps with 24,000+ active users I’m a Senior Full Stack React Developer with 10+ years of experience building scalable web applications. As a React / Next.js / Node.js develoepr I’ve delivered 60+ projects across SaaS, marketplaces, healthcare, fintech, and real estate. Working as a React Node.js Developer, I’ve launched 50+ production systems with 99.9% uptime, handling thousands of users and millions of requests. I’ve helped clients generate $12M+ and reduce time-to-market by 30–40%. 🚀 Full Stack React, MERN Stack & Backend Development I work daily as a Full Stack Developer, Full Stack React Developer, and React Node.js Developer, using React.js, Frontend React, Next.js (Nextjs), and scalable backend systems. My core expertise includes building applications with the MERN stack, delivering end-to-end solutions as a Full Stack Developer and React Node.js Developer. I’ve implemented multiple products using the MERN stack, combining MongoDB, Express, React.js, and Node.js. As a Full Stack Developer and React Node.js Developer, I focus on: ⚡ Improving performance (LCP/TTI) by 2–3x 📈 Increasing conversions by 30–35% 🚀 Scaling apps to 120K+ users 🧩 Building reliable backend systems My experience with the MERN stack, React.js, and backend architecture allows me to deliver fast and scalable solutions as a Full Stack Developer. 🧠 Backend, Databases & Supabase As a Full Stack Developer and React Node.js Developer, I build APIs, dashboards, and real-time systems. I work with SQL, PostgreSQL, MySQL, and MongoDB, designing efficient schemas and scalable data layers. My experience with MongoDB includes building high-load systems within the MERN stack ecosystem. I also use Supabase / Postgres to create modern backend systems with authentication, RLS, edge functions and real-time functionality. Built systems using MongoDB, PostgreSQL, and MySQL Processed 50K–300K events/day using Supabase Reduced backend costs by 50% with Supabase Improved delivery speed by 40% As a Full Stack Developer and React Node.js Developer, I ensure backend performance, scalability, and maintainability. 🎯 Frontend React & Next.js With 10+ years as a React Developer, React.js Developer, and Frontend React Developer, I build high-performance interfaces using React.js and Next.js (Nextjs). As a Full Stack Developer and React Node.js Developer, I connect frontend systems with scalable backend logic. ⚡ 50% faster load times 📉 Reduced bounce rates by 25–30% 📈 Increased engagement by 40–45% 📱 React Native & Cross-Platform As a React Native Developer, and alongside my work as a Full Stack Developer and React Node.js Developer, I build mobile apps connected to backend systems powered by MongoDB, Supabase, Firebase and SQL databases. 📲 12+ apps shipped 👥 130K+ users supported 💳 Payments, SaaS & PHP / Laravel Systems As a Full Stack Developer and React Node.js Developer, I build SaaS platforms, marketplaces, and payment systems. I also have solid experience with PHP, developing and maintaining backend systems and APIs. As a Full Stack Developer, I’ve worked on multiple projects using PHP alongside React.js and modern stacks. 💸 $10M+ revenue generated 📉 Reduced checkout drop-offs by 20–30% 📈 Increased AOV by 20–25% My experience includes integrating PHP / Laravel systems into modern architectures and migrating legacy PHP backends to MERN stack and Supabase solutions. ⚙️ Additional Expertise 30+ projects as a Full Stack Developer and Full Stack React Developer Strong experience as a React Node.js Developer Deep knowledge of SQL, PostgreSQL, MySQL, and MongoDB Hands-on work with the MERN stack across multiple production systems Experience with Supabase, Supabase Postgres, and real-time systems AI integrations (OpenAI, ChatGPT) as a React Developer Experience with PHP, Vue, and Svelte Built dashboards, PWAs, and SaaS platforms as a Full Stack Developer Improved release cycles by 25% and reduced bugs by 30% 🤝 Why Work With Me Reliable Web Developer with proven results Experienced React Node.js Developer and MERN stack specialist Strong expertise in React.js, Next.js, and backend systems Solid experience with MongoDB, SQL, PostgreSQL, MySQL, Supabase, and PHP Focus on business impact, scalability, and performance If you're looking for a Full Stack Developer, Full Stack React Developer, React Node.js Developer, or MERN stack developer with strong experience in MongoDB, Supabase, SQL, PostgreSQL, MySQL, and PHP / Laravel — let’s connect. 👉 Click "Invite" or "Hire" and tell me about your project.
Vladislav S. has worked .
Golden Team Soft
Associated with
Golden Team Soft
$6M+
earned
Yevhen S.
$51/hr
100% Job Success
$800K+ earned
Available now
Offers consultations
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I help B2B companies replace spreadsheets, manual workflows, and disconnected tools with full-stack development, custom software development, system integrations, and workflow automation. Most of my work is focused on B2B SaaS development, custom SaaS solutions, logistics systems, operations platforms, and AI-powered automation that solves real business problems. With 15+ years in full-stack web development and 250+ delivered projects, I work as a founder and technical lead. I partner with clients in logistics, B2B services, and eCommerce to build custom CRM platforms, internal business systems, management systems, and operational software that reduce manual work, improve visibility, and give teams a more reliable way to run day-to-day operations. I'M A GOOD FIT IF • Your team still relies on Excel, Google Sheets, shared documents, or email threads to manage important workflows; • Your current SaaS platform, CRM, ERP, WMS, or internal business system has become hard to change and needs stronger technical direction; • You need a reliable full-stack development partner for API integrations between your internal systems and marketplaces, shipping carriers, payment gateways, or AI services. WHAT I BUILD • Full-stack development for custom B2B SaaS platforms, CRM solutions, and internal operations tools; • Logistics systems and fulfillment software, including TMS, route planning, dispatcher dashboards, cargo planning, warehouse management views, and inventory workflows; • System integrations, business process automation, and AI-powered automation that keep data in sync and reduce repetitive manual work. Recent examples include a TMS for 3PL and eCommerce fulfillment, a multi-source marketing analytics platform, and an AI-assisted translation workflow system. HOW I USUALLY WORK • Review your workflows, constraints, and required integrations, then define a clear scope and milestone plan; • Deliver iteratively with demos, staging, and QA before release; • Support stabilization, handover, documentation, and further improvement after launch. My full-stack development work usually covers backend architecture, frontend implementation, databases, API integrations, deployment, and long-term system support. CORE STACK: Laravel/PHP, Node.js, Vue, React, TypeScript, MySQL/PostgreSQL, AWS, Docker, REST/GraphQL, and integrations with marketplace, payment, shipping, and AI APIs. If you already have a project in mind, send me 3 - 5 sentences about your current workflow and what you want to improve. I'll reply with initial fit, a possible direction, and a rough budget/timeline range.
Yevhen S. has worked .
Webmagic Limited
Associated with
Webmagic Limited
$900K+
earned
Andrey P.
$35/hr
100% Job Success
$70K+ earned
Available now
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Need a marketplace developer who has actually shipped two-sided platforms? That is all we do. I lead delivery at Roobykon Software, a dedicated marketplace developer and Sharetribe developer team. I help founders build two-sided marketplaces, booking platforms, and multi-vendor marketplace MVPs, the kind that connect buyers with sellers, hosts with guests, or clients with service providers. Think Airbnb, Etsy, Turo, TaskRabbit, or Booking, built for your niche. Why founders pick me: 🔹 150+ successful marketplaces launched globally 🔹 5-week MVP delivery, from idea to a working, revenue-ready product 🔹 Trusted for 14 years in commercial delivery 🔹 Serving customers across 50+ countries (Europe, North America, and MENA) 🔹 Built SaaS trusted by 3000+ users worldwide 🔹 Scaled a Minimum-Viable-Product platform to $3M in investment 🔹 Platforms ranging from lean MVPs to multi-million-dollar ecosystems 🔹 Delivered for clients in e-learning, real estate, healthcare, rentals, and more What I build: 🔸Two-sided and multivendor marketplace platforms (Sharetribe, Sharetribe Flex, Ruby on Rails, Node, Next.js) 🔸Booking, reservation, and scheduling systems with availability management 🔸Reverse and B2B marketplaces where buyers post requests and providers apply 🔸Directory and listing platforms with map-based search 🔸Migrations and rebuilds from Bubble, WordPress, WooCommerce, Shopify, and Magento 🔸Niches I have shipped in: rentals, on-demand and gig services, home services, real estate, logistics and delivery, events and ticketing, e-learning, healthcare, wellness, and B2B and ecommerce marketplaces. Payments and marketplace mechanics we know cold: 🔹 Stripe and Stripe Connect (Standard, Express and Custom): escrow holds, commission splits, platform fees, and payouts 🔹 Multi-party and multi-currency payments, subscriptions, and tax automation (Stripe Tax, Avalara, TaxJar) 🔹 Vendor onboarding, dual user roles, admin panels, and vendor dashboards 🔹 Real-time chat, notifications, ratings and reviews, and identity verification The team behind your build: Our people cover the full stack, so you get one accountable partner instead of five freelancers. That includes Sharetribe developer, full stack developer, web developer, React developer, Angular developer, Node.js developer, and if required WordPress developer and Bubble developer skill sets, plus product and business analysis to turn your idea into a clear, buildable scope. Once launch is done, we support growth too: website development, SEO, and organic growth to bring your first users in. How we work (the value you actually get): ➜ We scope honestly: realistic timelines, no overpromises, and a straight answer on what to cut for a lean MVP. ➜ We think like product architects, recommending proven APIs and tools over custom builds wherever it saves you money. ➜ We stay transparent from discovery through QA, deployment, and post-launch optimization. ➜ We position as a partner, not a vendor: technically fluent, and honest about fit before you spend a dollar. If you are building a Sharetribe marketplace, a two-sided platform, or a marketplace MVP and want a team that has done it 150+ times, send a short message about your product. Happy to give you a straight, practical read on scope and timeline on a free consultation.
Andrey P. has worked .
Roobykon | Digital marketplace development company | Custom web development
Associated with
Roobykon | Digital marketplace development company | Custom web development
$700K+
earned