🚀 My name is Artem, Co Founder and CTO of JoinToIT. I am a Full Stack Developer with more than 12 years of experience building SaaS platforms, AI powered systems, and complex web applications. 💻 As a Full Stack Developer I have participated in more than 1000 successful projects for startups, SaaS companies, and enterprise platforms worldwide. ⚡ If you need a reliable Full Stack Developer who can design architecture, build scalable systems, and integrate AI or APIs into your product, feel free to contact me. I lead JoinToIT, a software development company with nearly 80 engineers including senior Full Stack Developer specialists, web developer experts, react developer engineers, wordpress developer professionals, and mobile app developer teams. Every Full Stack Developer on our team focuses on scalable architecture, business logic, and long term platform growth. Over the past decade I have worked as a Full Stack Developer building SaaS platforms, CRM systems, marketplaces, enterprise dashboards, and AI powered automation tools. Many companies hire me as a full stack developer saas when they need to build a product from idea to production with reliable architecture. Our engineers regularly work as full stack developer laravel and full stack developer php specialists building secure APIs, payment systems, and large scale SaaS platforms used by thousands of users. As a full stack developer crm I have helped companies automate sales pipelines, distribution management, and customer lifecycle platforms used by teams of 100+ employees. On the frontend side we work as full stack developer react engineers building scalable SaaS dashboards and modern web interfaces. Our developers also deliver projects as full stack developer react node building high performance web applications and API ecosystems. We also build real time systems as full stack developer react firebase engineers including authentication platforms, messaging systems, and live dashboards. Beyond SaaS platforms we also operate as full stack web developer teams delivering scalable web applications, internal platforms, and marketplace systems. Our backend engineers work as python full stack developer flask and python full stack developer django specialists building scalable APIs, automation platforms, and data driven systems. Many companies hire us simply as python full stack developer experts when they need robust backend architecture. For modern SaaS stacks, we also work as full stack developer supabase react engineers building scalable backend infrastructure and cloud native systems. Companies building AI driven products often hire us as full stack developer javascript saas ia or full stack ai saas developer teams to integrate OpenAI, Claude, and automation workflows into SaaS platforms. With more than 12 years of experience as a Full Stack Developer I have helped launch more than 100 SaaS platforms, 70 AI integrations, and 50 CRM systems used by companies worldwide. Our platforms support thousands of daily users and process millions of API requests every month. Our teams also work as web developer and react developer specialists building high performance user interfaces and SaaS dashboards. Some companies hire us as wordpress developer experts for custom plugin development and integrations. When projects require cross platform products our engineers also work as mobile app developer teams delivering mobile applications connected to backend SaaS systems. My skills: JavaScript React Web Application Web Development Software Architecture & Design Full-Stack Development Database Architecture PHP Python Node.js API API Integration WordPress PostgreSQL Web Design HTML5 Git Laravel MySQL Tailwind CSS Our technical expertise includes PHP, JavaScript, Python, React, Laravel, Node.js, Supabase, Firebase, Django, Flask, PostgreSQL, MySQL, WordPress development, Web Development, Full Stack development and modern AI APIs such as OpenAI and Claude. Whether you need a Full Stack Developer to build a SaaS product, an AI powered platform, a CRM system, or a scalable web application, my team and I are ready to help turn your idea into a production ready platform. Best regards Artem Chernitsov CTO, JoinToIT

👋 Hi! Looking for a Senior .NET Developer or Full Stack Developer who delivers scalable enterprise systems — not just working code? With 10+ years as a C# .NET Developer, .NET Core Developer, and Full Stack Developer, I design and build production-grade SaaS platforms, CRM systems, legacy migration pipelines, and AI-integrated web applications for FinTech, HealthTech, EdTech, and enterprise clients across North America and Europe. Whether you need a .NET Full Stack Developer to architect a greenfield SaaS product, a React Developer or Angular Developer to rebuild a frontend, or a Senior .NET Developer to modernize aging .NET Framework systems — I cover the full delivery cycle from architecture to deployment. 🏆 What Sets My .NET Full Stack Work Apart 10+ years as a Senior .NET Developer & Senior Full Stack Developer 15+ enterprise platforms delivered: SaaS, CRM, marketplace, portal, and booking platform builds .NET Core / ASP.NET Core / C# .NET architecture across microservices, MVC, and event-driven systems React Developer & Angular Developer — full frontend ownership with TypeScript and JavaScript AI Developer integrations: OpenAI API, Dify, GPT-based automation, AI Agent Development Legacy .NET Framework modernization to .NET Core with zero production downtime HIPAA & GDPR-compliant systems across MedTech, Gov, and FinTech verticals .NET MAUI & Xamarin cross-platform desktop application and mobile application builds API Integration specialist: Stripe, PayPal, GraphQL, REST, gRPC, and third-party SaaS APIs Cloud: Azure Developer & AWS deployments, Docker, Kubernetes, CI/CD pipelines Full Stack SaaS Developer across subscription, marketplace, and document management platforms WordPress Developer for custom business portals and CMS-driven web application builds Node.js & Next.js experience for high-performance API layers and server-side rendering Python Full Stack work on data-heavy analytics and automation pipelines JavaScript Full Stack delivery: React, Angular, Vue.js, Node.js — all in one team 🚀 Selected Projects Norwegian E-Learning Platform (EdTech SaaS) Built as Tech Lead and .NET Full Stack Developer using Vue.js, ASP.NET Core, Azure, and SQL. The Vignita platform scaled to 2,500 companies and 100,000+ employees, embedded in 10+ university programs nationwide. Affiliate B2B Platform "Affaim" (MarTech) Delivered as .NET Developer and Full Stack Developer — multi-tenant architecture, high-load SQL databases, secure partner portals, and Shopify integration. Python Full Stack layer for analytics and data pipelines. Global Payments System "WorldRemit" (FinTech) Migrated legacy .NET systems to modern microservices. Payment gateway integrations, global API layer, and real-time transaction management as .NET Core Developer and Full Stack Developer AI. AI Arbitrage Platform "Sellerbility" Full Stack Developer AI role — built automation logic, OpenAI integrations, React dashboards, and API-driven analytics modules. Multi-Platform Telemedicine System (HealthTech) Mobile App Developer and .NET Developer: .NET Core backend, Blazor, SignalR, Xamarin cross-platform mobile, GDPR-compliant data architecture. 🔧 Core Tech Stack Backend & .NET: C#, .NET Core, ASP.NET Core, ASP.NET MVC, ASP.NET Web API, .NET Framework, .NET MAUI, Blazor, WPF, Entity Framework, SignalR, OAuth2, LINQ, WCF Frontend: React, Angular, Vue.js, Next.js, TypeScript, JavaScript, jQuery, Bootstrap, Tailwind CSS, HTML5, CSS3 Databases: SQL Server, MySQL, PostgreSQL, MongoDB, Redis, Azure SQL, Supabase, Elasticsearch Cloud & DevOps: Azure, AWS, Docker, Kubernetes, Azure App Services, Azure Data Factory, CI/CD, Git API & Integrations: Stripe, PayPal, GraphQL, REST, gRPC, OpenAI, SendGrid, Google Maps, IronPDF, Crypto Exchange APIs, Zendesk, RevenueCat Mobile & Cross-Platform: .NET MAUI, Xamarin, Flutter, Supabase, Firebase Auth, Android, iOS AI & Automation: OpenAI API, Dify AI, AI Agent Development, AI App Development, Machine Learning integration, Python automation CMS & eCommerce: WordPress Developer, Shopify, WooCommerce, CodeIgniter, Laravel (PHP integration layer) 💡 Results at a Glance ✅ 100,000+ users onboarded via SaaS platforms I architected ✅ Legacy .NET Framework systems modernized to microservices with zero downtime ✅ HIPAA & GDPR compliance delivered across healthcare and government platforms ✅ AI integrations reducing manual processing workload by 60%+ ✅ Cross-platform desktop application and mobile application shipped from a single C# codebase ✅ 12+ payment gateway and API Integration implementations across FinTech and eCommerce ✅ Database architecture supporting 100M+ records with sub-200ms query performance Open to Senior .NET Developer, C# Developer, .NET Core Developer, Full Stack Developer, React Developer, Angular Developer, Full Stack SaaS Developer, AI Developer, JavaScript Developer or Web Developer engagements — long-term preferred, fixed-scope welcome. 📆 Last Updated: 06/26

$53M+ Raised by Clients | 84+ Products Delivered | 100% Job Success | 14 Years in SaaS ✅ 14 years as CTO & Founder of Gearheart, Enterprise SaaS product development studio ✅ Co-Founder & CTO at Beyond the Wow, an AI-native MVP studio ✅ Helped 84+ startups and growth-stage SaaS teams scale their products ✅ Built SmartSuite from scratch — $38M raised, 7M+ users ✅ 2–4x faster delivery using Claude Code, Lovable, Cursor, and Replit ✅ Top Developer at Clutch and Goodfirms I'm a CTO with 20 years of engineering experience, specializing in Python Full Stack Developer SaaS and Full Stack Developer React architecture. I've learned that most founders don't fail because they can't build, they fail because they build the wrong thing. My job is to make sure that doesn't happen to you. As an MVP Developer, I focus on SaaS architecture and MVP Development — taking products from idea to live in weeks. My team delivers Full Stack Developer React and Python engineering with AI API Integration built in by default. Behind me is a team of 23 senior engineers with 14 years in SaaS — together we've shipped 84+ products for 70+ clients across 7 countries. Whether you need AI SaaS Development, a lean SaaS MVP, or full-scale SaaS Business Development — we bring both the speed and the engineering depth to make it production-ready. 🌟OUR ENGINEERING STANDARD Our standard for MVP Development comes from Gearheart, where we've spent 14 years as a SaaS Developer studio building enterprise products: - SmartSuite — SaaS Developer and MVP Development from scratch: $1.2M ARR in 4 weeks, $38M raised, trusted by Capital One. Coordinated with up to 4 external teams simultaneously - Globalli — Python Full Stack Developer SaaS and SaaS Developer project: HR/payroll across 125+ countries, SOC2 Type II, $15M raised. 15+ modules, 21 engineers at peak, 3 years 🔧 WHAT I CAN HELP YOU WITH - Discovery & Prototype: For every MVP Developer engagement — clickable prototype in 5 days using AI Development tools: Lovable, Replit, Cursor - Rescue Diagnosis: Code broken in production? Full review by senior Full Stack Developer React and AI Development engineer. QA, security audit, sprint plan - MVP & Landing Page: MVP Development in 3 weeks — 2–4x faster than traditional agencies. AI API Integration, auth, onboarding, deployment included - Sprint Subscription: Ship features on a regular sprint pace. Your long-term Full Stack Developer React, SaaS Developer and MVP Developer partner ⚡ OUR MVP SPEED - Legal SaaS platform + AI API Integration knowledge base → ~2 months - AI Receptionist with AI API Integration + CRM → shipped in weeks - B2B Dental Referral SaaS — MVP Developer delivery → 3 weeks - Medical device MVP Development — ICP + PMF + build → 2 weeks 💡WHY WORK WITH ME - Product Thinking First: We start at "should you build this?" not "what do you want us to build?" Most developers skip this entirely. We don't - AI Speed, Engineering Quality: We use Claude Code, Lovable, and Cursor as engineers, not prompt writers. AI Development is 2–4x faster without sacrificing production readiness. Need AI SaaS Development or MVP Development? We do both - We're Startup Founders Too: As founders ourselves, we know firsthand the challenges you're facing — including where AI Development fits and where it doesn't - Offshore Pricing, Enterprise Standard: Ukraine-based SaaS Developer team. Competitive pricing. Enterprise-level SaaS Developer quality — delivered by Python Full Stack Developer SaaS and Full Stack Developer React engineers who've built at scale Our team has delivered AI SaaS Development projects, Full Stack Web Developer builds, and App Developer with AI integrations — enterprise standard Our engineers cover the full stack: Software Developer tooling, REST API architecture, Web Developer interfaces, App Developer delivery. Whether you need a React Developer who owns the full product or a team that scales with you — we've done it both ways. We've worked with 70+ clients as an MVP Developer and SaaS Developer team — from early-stage founders to growth-stage companies across 7 countries. 30% return for their next product. Our Python Full Stack Developer SaaS and Full Stack Developer React engineers have built systems where AI Development is not optional — it's the delivery model. AI API Integration is embedded in every MVP Development sprint from day one. As an MVP Developer team: $400K+ on Upwork | 100% Job Success. AI Development and Python Full Stack Developer SaaS approach gives you depth without agency overhead. ⚙TECH STACK AI & Integration: AI API Integration: Claude Code, OpenAI, FastAPI, LangChain Frontend: Full Stack Developer React: React, TypeScript, Next.js, Vue.js Backend: Python Full Stack Developer SaaS: FastAPI, Django, Node.js, GraphQL, PostgreSQL DevOps: AWS, DigitalOcean, Docker, Kubernetes Every Python Full Stack Developer SaaS project we take on includes MVP Developer speed, AI Development, and AI API Integration by default

✳️Top 1% Expert-Vetted | 140+ Completed Projects with 100% Success Rate | Clear and Pragmatic Communication I'm a Full Stack Developer and Back End Developer specializing in EdTech & SaaS Development, RAG systems, and production-ready web applications. 🟢I help founders build revenue-ready software in 2–3 months. My team provides full-cycle product delivery, including design, testing, and deployment. We hold a 100% success score across 18,000+ hours and 140+ projects. I'm a Full Stack Developer and AI Developer specializing in EdTech SaaS, RAG systems, and production-ready LLM-powered applications. As a SaaS Developer, Web Developer, WordPress Developer, and Backend Developer, I focus on platforms built for long-term growth - not throwaway prototypes - with LLM-driven features that are reliable, observable, and cost-controlled. What I Built as a Full Stack Developer, SaaS Developer and AI Developer 💡 EdTech SaaS — Adaptive SAT/ACT prep platform built with Stanford PhDs, featuring personalized learning paths and real-time student analytics. (Full Stack Developer | EdTech Developer) 💡 Enterprise RAG — SharePoint/Dynamics 365 RAG system indexing 300k+ docs for automated SOW drafting and research. (AI Developer | RAG Developer) 💡 Film Industry Search — Hybrid semantic search engine over 500k+ movie/TV scripts using dense vector indexing and keyword-aware reranking. (RAG Developer | Backend Developer) 💡 Voice POS — React Native voice-controlled POS for drive-thru grocery systems with real-time inventory sync. (Full Stack Developer | Mobile Developer) 💡 HealthTech / Fitness AI Development — Fitness platform using hybrid RAG and computer vision for sub-1.2s calorie tracking and workout generation. (AI Developer | Full Stack Developer) 💡Zendesk AI Copilot: Built an Azure OpenAI RAG pipeline for Zendesk, auto-drafting agent replies grounded in historical tickets and KB docs with PII anonymization before processing. (Full Stack Developer / Back End Developer) 💡HealthTech AI Scribe / HIPAA: Whisper + GPT-4o transcription pipeline for psychiatrists, auto-generating structured session notes with patient history, MSE, and treatment plans from live audio. (Full Stack Developer / Back End Developer) Tech Stack I work with: 🔹My AI and RAG development work covers OpenAI, ChatGPT, Anthropic, Claude, Gemini, Mistral, Llama, LangChain, Hugging Face, PyTorch, and Grok xAI — delivering production-grade Generative AI and RAG systems across industries. For Voice AI, I work with ElevenLabs, Whisper (STT/TTS), VAPI, and OpenAI's real-time audio APIs. 🔹As a Full Stack Developer, my core stack is React.js, Node.js, Next.js, TypeScript, and JavaScript (ES6+), with Python, Vue.js, PHP, HTML, CSS3, and Bootstrap across projects. 🔹On the backend, I build with Node.js, Python, Golang, and Java, using Laravel, REST APIs, background jobs, and async workflows depending on what the system needs. 🔹For mobile, I develop cross-platform iOS and Android applications using React Native, Swift, and Kotlin. 🔹CMS work runs on WordPress Development. 🔹For Cloud infrastructure I use Microsoft Azure, Google Cloud Platform (GCP), SharePoint, DigitalOcean, and Microsoft 365. 🔹My database experience covers PostgreSQL, MongoDB, MySQL, ElasticSearch, Redis, and Supabase. 🔹For communication integrations, I work with Twilio, RingCentral, Zoom, WhatsApp, Telegram, Gmail, and Outlook. 🔹DevOps and delivery relies on Git and solid software architecture and design practices throughout. 🔹On compliance, I build to HIPAA, GDPR, PCI-DSS, SOC 2, FERPA, and COPPA standards — critical for HealthTech, EdTech, and enterprise SaaS platforms handling sensitive data. How I work I take on projects as a Full Stack Developer and SaaS Developer where the technical decisions actually matter - platforms that need to scale, handle real data, and stay compliant. As a Web Developer and JavaScript Developer, I'm hands-on in the codebase. As a SaaS Developer and EdTech Developer, I think beyond features and focus on architecture, user workflows, and long-term maintainability. Working together I'll dig into the strategy behind the code and highlight the pitfalls in your plan to ensure we build the right version of your product the first time. 👉Message me to discuss your project and see if we’re a fit.

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.

⭐️⭐️⭐️⭐️⭐️ Top 1% Expert-Vetted Web Developer on Upwork 📍 No short-term projects 📞 Kick-off with the team is mandatory 🧨 Available for a quick project start ★ Top-100 Service Provider by Clutch ★ $500M+ Raised by clients ★ 99+ International Awards ★ 15+ years of expertise (NOKIA, OPERA, OPPO, UDEMY, AUTH0, etc.) 👋 Hi, I'm Sergii! I'm a senior web developer, full stack developer Next.js specialist, and front end developer with 10+ years of experience building SaaS platforms, eCommerce products, AI applications, and custom web solutions. Over the years, I've helped launch 100+ products using React, React NextJS, Next.js, and modern JavaScript frameworks. My work combines technical architecture, front-end engineering, and product thinking to create fast, scalable applications that deliver measurable business results. 🏆 Why Clients Work With Me ✔ 100+ React, React Next, and Next.js projects delivered ✔ 50+ fully launched products across SaaS, AI, fintech, and eCommerce ✔ $500M+ raised by companies I've supported ✔ 20+ Upwork clients and long-term partnerships ✔ 30+ Shopify and Shopify Webflow projects completed ✔ Mobile and web products used by thousands of daily users ✔ Extensive experience as a front end developer React and front end Next specialist 🚀 Core Expertise 📌 Front-End Development As a front end developer, front end web developer, and front end designer, I've built interfaces for startups, enterprise products, and high-growth SaaS companies. Using React, React NextJS, Next.js, TypeScript, Tailwind, and modern UI frameworks, I create scalable applications focused on performance, maintainability, and user experience. My front-end work has helped companies reduce load times, improve conversion rates, and accelerate product delivery through reusable component systems and scalable architecture. 📌 React & Next.js Development I've delivered 100+ projects using React, React Next, and Next.js, including SaaS platforms, dashboards, marketplaces, AI tools, and enterprise applications. As a front end developer React specialist and full stack developer Next expert, I focus on building high-performance applications with clean architecture, SSR, SEO optimization, and long-term scalability. 📌 Mobile App Development Beyond web applications, I have extensive experience in mobile app development using React Native. I've helped teams launch mobile apps for healthcare, fintech, logistics, education, and SaaS businesses. As a mobile app developer, I work across the entire product lifecycle—from mobile app design and architecture to deployment and optimization. My experience includes React Native Mobile applications, cross-platform development, and React Native Full Stack solutions connected to modern APIs and cloud infrastructure. 📌 Shopify & Webflow Solutions I've worked on 30+ Shopify and Shopify Webflow projects, helping brands improve storefront performance, customer experience, and conversion rates. As a Shopify front end developer, I build custom themes, Shopify Hydrogen storefronts, and modern eCommerce experiences using Liquid, React, and headless architectures. I also collaborate closely with Webflow teams, helping businesses bridge design and development through scalable Webflow implementations and front-end optimization. 📌 AI & Python Integrations As a front end developer Python specialist, I've worked on AI-powered products featuring OpenAI integrations, vector search, chat interfaces, workflow automation, and custom dashboards. My experience includes Python APIs, automation workflows, AI assistants, and modern SaaS products powered by LLM technologies. 💻 Technology Stack React • React Next • React NextJS • Next.js • React Native • React Native Mobile • React Native Full Stack TypeScript • JavaScript • Node.js • NestJS • Express • Fastify Shopify • Shopify Webflow • Webflow • WordPress MongoDB • PostgreSQL • MySQL AWS • Google Cloud • Azure Tailwind • Storybook • GraphQL • Redux 🔥 What Clients Hire Me For ✔ Front End Developer React projects ✔ Full Stack Developer Next.js applications ✔ React Native Mobile App Development ✔ Shopify Front End Developer services ✔ Webflow and Shopify Webflow implementations ✔ Front End Designer and UI implementation ✔ Front End Developer Python integrations ✔ SaaS platforms and enterprise applications ✔ Mobile App Design and development ✔ Custom Web Development solutions 💎 Why Work With Me I combine the expertise of a web developer, front end developer, mobile app developer, and full stack developer into one delivery process. Clients work with me because I don't just build features—I help create products that scale, perform, and generate business value. Whether you need a front end developer React specialist, Shopify front end developer, React Native full stack engineer, mobile app developer, Webflow expert, or full stack developer Next.js partner, I'd be happy to discuss your project.

✅ 12 years of development experience in the IT industry 🎓 Master's degree in Information Technology. ✅ Microsoft Certified Professional Areas of specialization: 💎 Web Development 💎 Dynamics 365 CE 💎 Mobile Development for iOS / Android / Cross-platform 💎 Desktop Development for Windows 💎 UI / UX Design 💎 VR & AR Development using Unreal Engine / Unity 3D 💎 Project / Product Management 💎 Technical Oversight, Solution Architecture

👋 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.

📢 Available for new projects 📢 I'm a Senior Java Developer with more than 10 years of commercial experience building stable, scalable, and secure backend systems. I specialize in Spring Boot microservices and cloud-native architecture — and I've shipped production systems in Fintech, EdTech, Healthcare, Retail, Hospitality, etc. My core strength is backend architecture: clean APIs, event-driven systems, and services that scale. I also work across the full stack development when needed — React on the frontend, Node.js for integrations, and AWS for deployment and infrastructure. What I bring to your project: - Production-grade Spring Boot microservices and REST APIs - Cloud infrastructure on AWS with Docker and CI/CD pipelines - Full-stack capability: Java backend + React frontend - Relational and NoSQL databases: PostgreSQL, MySQL, MongoDB - Clean, maintainable code with TDD and Agile workflows I've worked on SaaS platforms, enterprise systems, and MVPs — from initial architecture through to deployment. Go-To Stack: Java (Spring Boot, Spring Cloud, Hibernate) · React · Node.js · AWS · Docker · PostgreSQL · MongoDB · Jenkins · GitFlow Ready to start - just drop me a message and we will start working!

⭐️⭐️⭐️⭐️⭐️ TOP RATED PLUS | Front End Developer | React Developer | Full Stack Developer | Next.js Developer — building scalable, production-grade products used by thousands of users 🚀 🔥 49 COMPLETED JOBS WITH ZERO NEGATIVE FEEDBACK ⭐️ Consistent 5-STAR REVIEWS & LONG-TERM CLIENT PARTNERSHIPS 💼 $200K+ earned on Upwork | ⏱ 8,000+ hours delivered | 🏆 100% Job Success Rate 🌍 40+ products shipped across 18+ countries | 🏅 15+ long-term client partnerships Building a serious product takes more than a polished UI — it takes a Full Stack Developer who understands architecture, scalability, and business impact. I'm a senior Front End Developer and Full Stack Developer with 9+ years building high-performance web apps, SaaS platforms, landing pages, and mobile apps for startups and growth-stage companies with React, Next.js, and Node.js. I keep frontend and backend tightly integrated so every decision serves the business. 📊 Impact & Metrics Products I've shipped serve 10K–100K+ monthly actives and handle 5M+ API requests/month. As a Front End Developer and React Developer I've cut load times 40–60%, lifted conversions 20–35%, and dropped bounce rates 25%+. Recent work: organic traffic +62%, TTI 2–3x faster, and a dashboard rebuild that grew weekly actives from 4K to 18K (+350%) in 4 months. 🏗 Architecture & Scalable Systems As a React Developer I design scalable component systems with Redux or Zustand; with Next.js I build hybrid rendering — SSR, SSG, ISR, API routes — tuned for performance and SEO. As a Full Stack Developer I work in Node.js, ExpressJS, and Python (Django, FastAPI), building REST APIs across PostgreSQL, MySQL, MongoDB, and Supabase, with WebSockets, Docker, and CI/CD on AWS or Vercel cutting release times 50%+. Modular patterns reduce technical debt and bug rates 30–40%. 🤖 AI Development & Intelligent Systems I build production-ready AI apps and agents with the OpenAI API and Claude, connecting LLMs to real product needs, not demos. As a Full Stack Developer and React Developer, I ship conversational interfaces, multi-step reasoning pipelines, ML features inside existing platforms, and AI-powered dashboards that save teams 15–25 hours/week. 📱 Mobile App Development Beyond the web, I build cross-platform apps with React Native for Android and iOS, sharing logic with the web codebase to cut delivery time up to 40%. As a Front End Developer who treats mobile as a first-class surface, I've shipped apps holding 4.5★+ store ratings. 🎨 Design-to-Code & Website Builds I turn Figma and Framer designs into pixel-perfect, responsive interfaces with Tailwind CSS and SCSS — landing pages, full websites, or redesigns, always polished and fast. As a Front End Developer I consistently hit Lighthouse 95+ and median LCP under 1.8s. 📈 Business-Oriented Engineering As a React Developer I've refactored unstable React codebases into maintainable systems, shipped Next.js platforms that grew organic acquisition, built Stripe subscription and marketplace flows, and handled API integration, cutting infra overhead 20–30%. One Full Stack Developer engagement took a signup funnel from 90 to 240/month (+165%) while halving server costs. ⚡ Performance & Optimization I treat Core Web Vitals like LCP and TTI as real product metrics, getting them 2–3x faster through code splitting, lazy loading, caching, and SSR/ISR/static rendering. As a Front End Developer obsessed with speed, I've taken pages from 6s+ to sub-2s, lifting conversion +38% and cutting bounce 25%+. 🔧 Primary Stack Frontend: React.js, Next.js, TypeScript, Redux, Zustand, Tailwind CSS, SCSS, Framer. Backend: Node.js, ExpressJS, Python (Django, FastAPI), REST, GraphQL, WebSockets. AI: OpenAI API, Claude, custom ML. Mobile: React Native, native Android. Infra: AWS, Vercel, Docker, CI/CD, PostgreSQL, MySQL, MongoDB, Redis, Supabase. Need a React Developer for a complex SPA or a Full Stack Developer to own the whole product? The stack flexes to fit. 💡 Data-Backed Results at a Glance ✅ 60% faster load times via Next.js rendering & caching ✅ 35% increase in conversion rates through funnel-focused Front End Developer work ✅ 350% growth in active users on a React Developer dashboard rebuild ✅ 62% lift in organic traffic via SEO-optimized SSR/SSG ✅ 50% shorter release cycles after CI/CD automation ✅ 40% reduction in mobile delivery time through shared React Native logic ✅ 30% drop in technical debt and bugs via modular components ✅ 25% lower bounce rates after Core Web Vitals work ✅ 165% more signups on a Stripe SaaS funnel rebuild ✅ 95+ Lighthouse scores with sub-1.8s LCP 🤝 How I Work I stay product-focused, build clean, scalable architecture from day one, and iterate fast without piling up technical debt. As a Front End Developer and Full Stack Developer who's partnered with 40+ founders, CTOs, and product teams, I prefer long-term partnerships over one-off gigs. Looking for a React Developer who thinks in products, not tickets? Let's talk.