🚀 Scalable Solutions with React & Full Stack Development 🚀 📅 20+ years of experience & Master’s in Computer Science 👥 Leading a dedicated team of 25 software developers 📦 70+ completed production-ready projects 💰 $25M+ value generated through high-level architectural solutions With 20+ years of experience, I am a Full Stack Developer, Web Developer, and Mobile App Developer delivering scalable SaaS platforms, enterprise systems, and modern web development solutions for fintech, healthcare, marketplaces, logistics, and real estate industries. As the founder of a 25+ engineer software company, I lead teams building production-ready applications with clean architecture, high availability, and long-term scalability. Our team has successfully delivered 70+ production-ready projects supporting large user bases and helping businesses improve operational efficiency, scalability, and product delivery speed. We specialize in enterprise-grade SaaS platforms, React applications, backend systems, and cross-platform mobile app development. Every Full Stack Developer, React Native Developer, and Web Developer on my team is experienced in scalable frontend and backend architecture. We build robust React Node applications, business dashboards, APIs, marketplaces, and SaaS systems with clean, maintainable code. 💻 Core Technologies & Database Architecture Our core stack includes React.js, Next.js, Node.js, React Native, Flutter, PHP, Laravel, Python, TypeScript, Supabase, Firebase, PostgreSQL, MongoDB, and MySQL. As a React Native Developer and Mobile App Developer team, we create high-performance cross-platform mobile applications for iOS and Android with modern UI/UX and scalable backend infrastructure. As a Web Developer and Full Stack Developer, I design scalable database systems using MySQL, PostgreSQL, MongoDB, and Supabase with optimized schemas, secure APIs, and realtime functionality. We frequently deploy solutions on AWS, Google Cloud, and Vercel while ensuring scalability, security, and performance. We also provide complete web development services including frontend implementation, backend engineering, API integrations, cloud deployment, and DevOps workflows. Our experience includes enterprise SaaS systems, marketplaces, dashboards, PWAs, and mobile platforms. ⚡ AI Integration & Scalable Systems We specialize in AI-powered Full Stack solutions integrating OpenAI, ChatGPT, RAG systems, automation workflows, and AI APIs into modern web and mobile applications. As a Python Developer and AI-focused engineering team, we build intelligent backend services, AI assistants, automation systems, and scalable SaaS platforms. Whether modernizing legacy PHP systems, building React Native applications, or developing modern React Node SaaS products, we focus on scalable architecture and measurable business results. 👥 Delivering applications with 120K+ active users Our experience includes: • SaaS platforms & marketplaces • Enterprise dashboards & admin systems • AI-powered applications • Mobile app development • React Native development • Custom APIs & backend systems • Web development & frontend engineering • Realtime systems & cloud infrastructure • WordPress developer services for CMS-driven projects ⚙️ Additional Expertise React.js, Next.js, Vue.js, Svelte Node.js, PHP, Laravel, Python React Native Developer & Mobile App Developer solutions Flutter mobile applications Supabase, Firebase, PostgreSQL, MySQL, MongoDB AWS, Google Cloud, Vercel AI integrations & automation workflows MERN stack architecture API integrations & scalable backend systems 🤝 Why Work With Me ✔ 70+ completed production-ready projects ✔ Experienced Full Stack Developer & Web Developer team ✔ Strong React Native Developer and Mobile App Developer expertise ✔ Deep experience with scalable SaaS architecture ✔ Focus on performance, scalability, and clean code ✔ Long-term product development and technical leadership If you need a Full Stack Developer, Web Developer, Mobile App Developer, React Native Developer, Python Developer, or scalable SaaS engineering team — let’s connect. 👉 Click “Invite” or “Hire” and let’s discuss your project.

I help healthcare, pharma, and SaaS companies build, modernize, and scale complex software systems — especially when reliability, data integrity, security, compliance, and long-term scalability matter. With 14+ years of software engineering experience, 10,000+ Upwork hours, $200K+ earned, and a 100% Job Success Score, I work as a hands-on architect who can take ownership from system architecture and database design through backend, frontend, integrations, AI, testing, and production delivery. My strongest experience sits at the intersection of Healthcare + Pharma + SaaS + Legacy Modernization + AI. What I can help you with Healthcare & Pharma Software • EMR / EHR and doctor-patient platforms • Healthcare SaaS applications • Medical data workflows and auditability • HIPAA / healthcare compliance-oriented systems • Pharma distribution and inventory workflows SaaS Architecture & Development • Multi-tenant SaaS platforms • RBAC and permission systems • Scalable, high-performance applications • Database and API architecture Legacy Modernization • GWT / Java modernization • React & Next.js migrations • Technical debt reduction •Modernizing large existing applications without disrupting business workflows AI Integration • OpenAI / LLM integrations • AI-powered insights & decision support • AI-enabled SaaS workflows •Integrating AI with existing business systems I am also architecting an AI-enabled pharma distribution platform involving workflows such as batch/expiry management, transaction integrity, refunds, and regulatory audit trails. Technology React | Next.js | TypeScript | Angular | Node.js | Java | Spring Boot | PostgreSQL | MySQL | MongoDB | AWS | Azure | Docker | AI/LLMs My Upwork history includes 2,700+ hours on a GWT modernization engagement and 3,800+ hours on another long-term project. If you're building, scaling, or modernizing a healthcare, pharma, SaaS, or enterprise application, send me the technical challenge. I’ll help you identify the right architecture and path forward.

Hi, I’m Jabed, an AI Website Developer and Full Stack Web Developer with 4+ years of hands-on experience building custom websites, AI-powered web applications, SaaS platforms, AI chatbots, dashboards, automation systems, marketplaces, and business web applications. I help startups, businesses, and agencies turn ideas into fast, responsive, scalable, SEO-friendly, and AI-powered digital products using React.js, Next.js, Node.js, Laravel, PHP, MongoDB, MySQL, OpenAI, Claude, Gemini, n8n, REST APIs, and third-party integrations. Whether you need a custom website, AI web app, SaaS platform, MVP, chatbot, admin dashboard, marketplace, booking system, or API-powered business solution, I can support your project from planning and development to testing, deployment, optimization, and ongoing support. 🤖 𝗔𝗜 & 𝗖𝗨𝗦𝗧𝗢𝗠 𝗪𝗘𝗕 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 ✅ AI Website Development ✅ Custom AI Web App Development ✅ AI SaaS Development ✅ AI Chatbot Development ✅ AI Agent Development ✅ OpenAI / ChatGPT API Integration ✅ Claude & Gemini Integration ✅ LLM & RAG Application Development ✅ AI Knowledge Base Development ✅ AI Automation & Workflow Development ✅ n8n Automation ✅ Custom Website Development ✅ Full Stack Web Development ✅ React.js / Next.js Development ✅ Node.js / Laravel Backend Development ✅ SaaS & MVP Development ✅ Figma to Responsive Website ✅ Admin Dashboard & Client Portal ✅ Marketplace & Booking Platform ✅ eCommerce Development ✅ REST API & Third-Party API Integration ✅ Payment Gateway Integration ✅ Website Redesign & Performance Optimization 💻 𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞 ✅Frontend: React.js • Next.js • JavaScript • TypeScript • HTML5 • CSS3 • Tailwind CSS ✅Backend: Node.js • Express.js • PHP • Laravel • REST API ✅AI & Automation: OpenAI • ChatGPT API • Claude • Gemini • AI Agents • LLM • RAG • LangChain • n8n • Prompt Engineering ✅Database: MongoDB • MySQL • PostgreSQL • Firebase • Supabase • Vector Databases ✅Integrations: Stripe • PayPal • Google Maps API • Webhooks • OAuth • Third-Party APIs 🌐 𝗦𝗢𝗟𝗨𝗧𝗜𝗢𝗡𝗦 𝗜 𝗖𝗔𝗡 𝗕𝗨𝗜𝗟𝗗 ✅ AI SaaS Platforms ✅ AI Chatbot & AI Agent Applications ✅ AI Customer Support Systems ✅ AI Business Automation Tools ✅ Business & Corporate Websites ✅ Startup MVPs ✅ eCommerce & Marketplace Platforms ✅ Booking & Reservation Systems ✅ Real Estate Platforms ✅ Educational Platforms ✅ CRM & ERP Systems ✅ Membership & Subscription Platforms ✅ Admin Dashboards & Client Portals ✅ Custom Business Web Applications ⭐ 𝗪𝗛𝗬 𝗪𝗢𝗥𝗞 𝗪𝗜𝗧𝗛 𝗠𝗘 ✅ 4+ Years of Hands-On Development Experience ✅ Clean, Scalable & Maintainable Code ✅ Responsive & SEO-Friendly Development ✅ AI Integration Tailored to Your Business ✅ Secure API & Database Integration ✅ Pixel-Perfect Figma Implementation ✅ Performance Optimization ✅ Testing, Bug Fixing & Deployment ✅ Clear Communication & Project Updates ✅ Post-Launch Technical Support I focus on understanding the business problem behind your project, not just writing code. If AI can automate manual work, improve customer support, personalize experiences, generate content, or make your platform smarter, I can help design and build the right solution. Whether you're starting from scratch, integrating AI into an existing website, building an AI SaaS product, developing an MVP, creating an AI chatbot or AI agent, implementing RAG, or automating workflows with n8n, I’m ready to help. 🚀 𝗟𝗲𝘁’𝘀 𝘁𝗿𝗮𝗻𝘀𝗳𝗼𝗿𝗺 𝘆𝗼𝘂𝗿 𝗶𝗱𝗲𝗮 𝗶𝗻𝘁𝗼 𝗮 𝗽𝗼𝘄𝗲𝗿𝗳𝘂𝗹 𝗔𝗜 𝗪𝗲𝗯𝘀𝗶𝘁𝗲 𝗼𝗿 𝗔𝗜 𝗪𝗲𝗯 𝗔𝗽𝗽 𝘁𝗵𝗮𝘁 𝘄𝗼𝗿𝗸𝘀 𝘀𝗺𝗮𝗿𝘁𝗲𝗿, 𝘀𝗰𝗮𝗹𝗲𝘀 𝗳𝗮𝘀𝘁𝗲𝗿, 𝗮𝗻𝗱 𝗱𝗿𝗶𝘃𝗲𝘀 𝗿𝗲𝗮𝗹 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗿𝗲𝘀𝘂𝗹𝘁𝘀. Best Regards, Abu Sadek Jabed 🔑 Core Expertise: AI Developer | AI Website Developer | AI Web App Developer | AI Website Development | Custom AI Website | Custom AI Web App | Full Stack AI Developer | AI Developer | AI Website | AI Web App | AI Developer for SaaS | AI Website Developer | AI Developer | AI Website Development | AI Developer | Custom AI Website | AI Website | AI Developer for AI Applications | AI Website Developer | AI Developer | AI Web App | AI Website Development | AI Developer | AI Website | AI SaaS Developer | AI Website Developer | AI Developer | AI Website | AI Application Developer | AI Developer | AI Website Development | AI Developer | Custom AI Website | AI Website | AI Developer | AI Chatbot Developer | AI Website Developer | AI Developer | AI Website | AI Automation Developer | AI Developer | AI Website Development | AI Developer | AI Website | AI SaaS Developer | AI Developer | AI Website Developer | AI Developer | AI Website | OpenAI Developer | AI Developer | AI Website Development | AI Developer | AI Website | AI Web App Developer | AI Developer | AI Website | Full Stack AI Developer | AI Developer | AI Website Developer | AI Developer | AI Website Development | AI Developer | AI Website | Custom AI Web App | AI Developer | AI Website Development | AI Developer | AI Website Developer | AI Website

🏆 𝗧𝗼𝗽 𝟭% 𝗨𝗽𝘄𝗼𝗿𝗸 WordPress Developer | 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 🏆 ⭐️ 𝟭𝟱+ 𝘆𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲, ⭐️ more than hundred 𝟱 𝘀𝘁𝗮𝗿 proven feedbacks at UpWork ⭐️ 4500+ working hours at UpWork ⭐️ Clutch Top 5 Html5 Developer ⭐️ Clutch Top 10 WordPress Developer — Full-Cycle Custom WordPress development (𝗰𝘂𝘀𝘁𝗼𝗺 𝘁𝗵𝗲𝗺𝗲𝘀, 𝗰𝘂𝘀𝘁𝗼𝗺 𝗽𝗹𝘂𝗴𝗶𝗻𝘀, 𝘄𝗲𝗯 𝗱𝗲𝘀𝗶𝗴𝗻). — Sales-Driven UI/UX Web Design. — Frontend development with clean, responsive HTML/CSS and modern JavaScript. — Backend solutions in PHP for dynamic and high‑performance applications. — Gutenberg, ACF Pro, Elementor, API integration — Speed optimization (90+ Google PageSpeed) and SEO‑ready architecture.. Typical results my clients see: • +𝟯𝟬+𝟳𝟬% 𝗰𝗼𝗻𝘃𝗲𝗿𝘀𝗶𝗼𝗻 𝗿𝗮𝘁𝗲 𝗮𝗳𝘁𝗲𝗿 𝗿𝗲𝗱𝗲𝘀𝗶𝗴𝗻 • 𝗙𝗮𝘀𝘁𝗲𝗿 𝗹𝗼𝗮𝗱 𝘁𝗶𝗺𝗲𝘀 𝗮𝗻𝗱 𝗯𝗲𝘁𝘁𝗲𝗿 𝗖𝗼𝗿𝗲 𝗪𝗲𝗯 𝗩𝗶𝘁𝗮𝗹𝘀 • Clean, scalable code that is easy to maintain I combine technical expertise with business understanding. My goal is not just to code a website, but to create a digital product that helps you grow. 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗝𝗼𝗶𝗻 𝟭𝟬𝟬+ 𝗦𝗮𝘁𝗶𝘀𝗳𝗶𝗲𝗱 𝗖𝗹𝗶𝗲𝗻𝘁𝘀? Click on the 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 or 𝗜𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗝𝗼𝗯 button on top-right corner. 🤝 Some more of my Website and Web App Development skils: ✅Custom WordPress - 15 years of experience ✅Custom WooCommerce - 10 years of experience ✅Web Design - Figma/XD/PSD - 12 years of experience ✅Html5, Css3, Bootstrap - 15 years of exp ✅Php - 12 years of experience ✅React - 7 years of experience ✅Node.js - 5 years of experience ✅JavaScript - 14 years of experience Website development: ✅Web Design - Figma/XD/PSD ✅Html5, Css3, Bootstrap ✅Php ✅React ✅WordPress website development ✅WordPress custom theme development ✅WordPress custom plugin development ✅WordPress api integration E-Commerce development: ✅WooCommerce custom development ✅Craft CMS development ✅Shopify development ✅Shopify Pro development ✅Wix website development ✅Magento custom development ✅Joomla website development ✅PrestaShop development Web Application development: ✅Laravel development ✅React js development ✅MERN stack development ✅JavaScript (ES6) development ✅TypeScript development Backend development: ✅Node.js development ✅Ruby on Rails development ✅Python development ✅Php development Moblie App development: ✅React Native development ✅Flutter development ✅iOS native development ✅Android native development ⭐️⭐️⭐️⭐️⭐️My most famous clients: NINTENDO, BOSS Audio, ICVR io ⭐️⭐️⭐️⭐️⭐️i developing websites and apps that gives 🎯 PROFIT for my clients. ⭐️⭐️⭐️⭐️⭐️After starting our collaboration revenue of my clients grow by 🎯 $30M per year There are 100+ REAL 𝗧𝗲𝘀𝘁𝗶𝗺𝗼𝗻𝗶𝗮𝗹𝘀 showing why clients trust me to build their websites and apps. Want to 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗶𝘁 𝘆𝗼𝘂𝗿𝘀𝗲𝗹𝗳? Click on the 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 or 𝗜𝗻𝘃𝗶𝘁𝗲 button and let’s start 🤝 Keywords: Website Development, Website Development for Startup, MVP Development, Frontend Developer, Frontend Engineer, Frontend Dev, Front End Developer, Backend Developer, Full-Stack Developer, WordPress Developer, Wordpress Custom Development, Wordpress Plugin Developer, Wordpress ACF Developer, WordPress Development, WooCommerce Custom Developer, WooCommerce Developer, HTML Developer, HTML/CSS Developer, HTML Website, UI/UX Web Design, Web App Development, Wordpress Page Speed Optimisation, WordPress Performance Optimisation , Chart.js, D3.js, React Developer, React.js Developer, Magento Developer, Figma to Html, Figma to WordPress, Small Business Website, Middle Business Website, Landing Page Development, Senior WordPress Developer, Website Redesign, Wordpress Website Redesign, WordPress Redesign, Web Design, Web Designer Have a project in mind? Drop me a message with your key requirements, and let’s get things moving together

Java Backend and Full Stack Architect. 16,000+ verified hours on Upwork building backend systems, HL7 and FHIR healthcare integrations, SaaS platforms, and mobile apps with Java, Spring, Angular, and AWS. I have spent 10+ years designing and building production backends. My largest Upwork contracts run into the thousands of hours each: a 5,130-hour microservices and AWS backend, a 2,012-hour SaaS analytics platform, and active enterprise integration work. I go deep and I stay for the long haul. I do not just ship features. I design systems that do not break. WHAT I DO BEST Backend and architecture, my strongest area - Java, Spring Boot, Spring Security, JPA, Hibernate - Microservices and event driven systems - API design and third party integrations - Postgres, reliability and performance work - AWS architecture, Docker, CI/CD Full stack - Angular, React, Next.js, Node.js - Frontend architecture that stays clean as the app grows WHERE I HAVE DEPTH Healthcare systems and integration - HL7 v2 and FHIR R4 integrations, Mirth Connect interface engines - Health data platforms (openmhealth) - EHR and EMR data exchange, PHI handling and audit trails - Patient scheduling, remote monitoring, care management SaaS platforms - 2,012 hours on a SaaS analytics platform, plus dashboarding and reporting systems - Multi-tenant backends, subscription and access control - MVP to production builds AI, built into the systems above - OpenAI and LangChain integrations, RAG pipelines, semantic search - Document intelligence and text extraction for clinical and business data - AI Voice Agent PROOF - 16,321 hours logged on Upwork, all verified by the platform - 47 completed contracts, 100% Job Success, Top Rated Plus - $900K+ earned here - My longest single contract ran 5,130 hours. Clients keep me for years. HOW I WORK - I think in architecture first, then code - I build for the next two years, not the next two weeks - I write clearly. You will never have to guess what I meant - I own the work from planning through deployment - I flag problems early, even when the news is bad GOOD FIT IF - You need an engineer who makes architecture decisions, not just takes tickets - Your backend has to be stable, secure, and scalable - You are integrating healthcare data or building a SaaS product - You are planning for the long term NOT A FIT IF - You are shopping for the lowest rate - You want a patch, not a fix - Clean, maintainable code is not a priority for you Send me a message with your project details. I will tell you how I would approach it, and I will be honest if I am not the right person for it. Ganesh

Need a Java backend that survives real traffic, not just passes a demo? I build production-grade APIs and microservices with Spring Boot, then layer AI agents on top that reason over your live data instead of guessing. Most backend developers stop at CRUD endpoints. I go further: solving distributed-systems problems like race conditions, multi-instance coordination, and rate limiting, then extending those systems with AI tool-calling agents that answer real questions about live system state. My recent rate limiter project (Java, Spring Boot, Redis) was verified with concurrent load testing and deployed live on AWS behind a load balancer across multiple instances. Here's what I can build for you: - Production-ready REST APIs and microservices in Java/Spring Boot or Node.js/Express - AI agents and chatbots that operate on your real data via tool-calling, not static prompts - Scalable backend architecture for SaaS products - Distributed-systems fixes: rate limiting, caching, concurrency, atomic operations - Performance tuning for slow APIs, database queries, and N+1 issues - AWS deployment with Docker and Kubernetes, plus production debugging 5-star rating from every completed contract so far, with hands-on experience integrating Elasticsearch into Spring Boot microservices to search 500,000+ records (cutting response times by 50%) and implementing OAuth 2.0 and TLS security. Backed by a Java Programming Masterclass certification and an Accenture engineering job simulation. Available now, with an average response time under 4 hours. Send me a message and let's talk about what you're building.

Senior Java / Spring Boot developer with 1,000+ Upwork hours, 37 completed projects, a 100% Job Success Score, and a 4.9/5 client rating. I specialize in backend development, REST APIs, API integrations, and maintaining or extending existing Java/Spring applications. One of my long-term Upwork engagements has lasted 4+ years and 850+ hours, supporting and developing a Java open-source project. I’m comfortable working with existing codebases, understanding unfamiliar systems, fixing bugs, adding features, and delivering maintainable solutions without unnecessary rewrites. What I can help you with: • Java / Spring Boot backend development • REST API design and development • Spring MVC / Spring Framework • Hibernate / JPA and SQL • Third-party API integrations • Backend bug fixing and troubleshooting • Existing codebase maintenance and feature development • Refactoring and improving legacy Java applications • Unit testing with JUnit • Node.js backend development • React when full-stack work is required I’m particularly comfortable with projects where you already have an application and need an experienced developer to understand the codebase, fix issues, implement new features, or continue development. I value clear communication, clean code, practical solutions, and long-term collaboration. If you have an existing Java/Spring project that needs development or maintenance, send me the details and I’ll take a look.

I've spent 13 years building backend systems that hold up once they hit real production traffic — mostly Java and Spring Boot, with a second specialty in ERPNext/Frappe implementations. 100% Job Success Score across 49 completed jobs and $90,000+ delivered on Upwork, including long-running engagements up to 990 hours on a single contract. Where I spend most of my time: Spring Boot REST APIs and microservices — secured with Spring Security and JWT, backed by JPA/Hibernate, deployed with Docker and CI/CD, running on PostgreSQL, MySQL, or MongoDB depending on the job. I've built everything from single services to multi-service architectures handling role-based access and third-party integrations. I've also shipped Java + React/Angular enterprise portals and Liferay 6.2/7.x portal work for clients who needed a full frontend layer, not just an API. On the ERP side: I'm Frappe Certified on ERPNext V15. I handle end-to-end implementations — custom DocTypes, workflow automation, approval hierarchies, print formats, and REST API integrations connecting ERPNext to outside systems. Before I write a line of code, I ask two questions: what does your current process actually look like, and what does it cost you if this breaks? That conversation is usually what separates a system that works from one that just runs. Currently available, 30+ hrs/week. I reply within a few hours.

Building a web application that works in demo is one thing. Building one that holds up under real users, real load, and real edge cases - that is a different level of engineering entirely. 𝗧𝗵𝗮𝘁 𝗶𝘀 𝘄𝗵𝗮𝘁 𝗜 𝗳𝗼𝗰𝘂𝘀 𝗼𝗻. I am a full stack developer with 𝟲+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 delivering production-grade web applications and SaaS platforms for startups and growing businesses - working across the complete stack from React and Angular frontends to Node.js, NestJS, Java Spring Boot, and Python backends, with clean database design, secure APIs, and reliable cloud deployments on AWS. 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 𝗦𝗮𝗮𝗦 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 & 𝗪𝗲𝗯 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 End-to-end SaaS development - multi-tenant architecture, role-based access control, subscription and billing systems, admin dashboards, and the API infrastructure that ties everything together. Built to scale from MVP to thousands of users without a full rebuild six months later. 𝗥𝗘𝗦𝗧 𝗔𝗣𝗜 & 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 Clean, well-documented REST APIs built with Node.js, NestJS, Java Spring Boot, and Python - covering authentication with JWT and OAuth2, third-party integrations, payment gateways, and backend systems designed for performance and long-term maintainability. 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 Responsive, performant frontend interfaces built with React, Angular, and TypeScript - single-page applications, admin panels, dashboards, and user-facing product interfaces built for both desktop and mobile. 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 𝗗𝗲𝘀𝗶𝗴𝗻 & 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 Relational and non-relational database architecture using MySQL, PostgreSQL, and MongoDB - schema design, query optimization, and data modeling built around the actual needs of the application, not generic templates. 𝗖𝗹𝗼𝘂𝗱, 𝗗𝗲𝘃𝗢𝗽𝘀 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 AWS deployments, Docker containerization, CI/CD pipelines, and scalable cloud infrastructure - plus GoHighLevel CRM setup, workflow automation, and funnel integrations for businesses that need operational automation alongside their product. 𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞 Frontend: React · Angular · TypeScript · JavaScript Backend: Node.js · NestJS · Java Spring Boot · Python Database: MySQL · PostgreSQL · MongoDB Cloud: AWS · Docker · CI/CD Auth: JWT · OAuth2 · Role-Based Access Control Automation: GoHighLevel · CRM Integrations 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 FinTech · HealthTech · SaaS Platforms · E-Commerce · Recruitment & HR Tech · Automation & Workflow Systems If you are building a SaaS platform, need a reliable backend, or want a full stack developer who takes ownership from architecture to deployment - send me a message with what you are working on. I will tell you exactly how I would approach it. 𝗞𝗘𝗬𝗪𝗢𝗥𝗗𝗦 Full Stack Developer · React Developer · Node.js Developer · Python Developer · Java Spring Boot Developer · NestJS Developer · Angular Developer · TypeScript Developer · SaaS Developer · Web Application Development · REST API Development · GraphQL · MySQL · PostgreSQL · MongoDB · AWS Developer · Docker · CI/CD · JWT Authentication · GoHighLevel · CRM Integration · Payment Gateway Integration · Stripe Integration · Admin Dashboard · MVP Development · Backend Developer · API Integration · Full Stack Web Developer

I build mobile and web apps that feel fast, reliable, and easy to use — whether native mobile apps (Kotlin for Android, Swift for iOS), cross-platform apps (Flutter, React Native), or modern web applications (React, Next.js, Node.js). My goal is to make your product run smoothly, scale easily, and grow with your business. With a Ph.D. in Computer Science and 10+ years of development experience, I've successfully delivered 90+ iOS, Android, and web applications on Upwork — including custom solutions for logistics, healthcare, booking, education, and business automation. 💡 What I Do Best - Cross-platform mobile app development with Flutter & React Native - Native Android app development using Kotlin - Native iOS app development using Swift - Web application development with React, Next.js, and Node.js - Design of clean, maintainable architecture with scalability in mind - Integration of REST APIs, Firebase, AWS, and Supabase - Support for offline mode, background services, and push notifications - Performance optimization, UX improvements, and deployment (App Store, Google Play, web hosting) 🧠 Why Clients Choose Me I combine strong technical expertise with a product mindset — not just delivering code, but building reliable, user-friendly products that support long-term growth. Whether you're building an MVP or scaling an existing application, I can help you choose the right tools and technology stack for both mobile and web. 💬 Let's Build Something Solid If you're looking for a developer who covers both mobile and web ecosystems, let's discuss your next project.