Hey folks👋 Welcome to my Upwork profile! I'm a Web Developer with over 12 years of commercial experience. I provide clean, high-quality, performant, and maintainable code. I'm strong in development and support, including applications, database integrations, interfaces and new enhancements. My professional skills⤵️ - OOP and OOD principles, MVC - HTML, CSS \ SCSS, Tailwind CSS, Bootstrap - JavaScript, Vue.js\ Pinia - PHP, Laravel - MySQL, GraphQL - WordPress CMS - PSD to HTML - WebSocket - REST API and third-party APIs - AWS S3 - Docker - Unit tests and manual testing - CI/CD - Github, Gitlab and Bitbucket Previous projects: - CRM - LMS - SEO Tool - Price Comparison System; - Management Tool - E-commerce - Marketplaces - B2B - Chrome Extension 📎 Collaborative tools: Jira, Trello, Asana, Clickup Slaсk, MS Teams My goal is to build productive and long-term relationships. Happy to be the part of growing business, perspective startup or help you to update and support current project. Drop me a message and we'll discuss the terms of cooperation🚀

You've seen this before. A developer who looked great on paper. Promising demos. Then — missed deadlines, excuses, a codebase only they could understand, and a product that still isn't live. I know because I've spent 8 years cleaning up after that story. My name isn't important yet. What matters is this: I've delivered 50+ full-stack MERN applications for SaaS founders, startups, and growing businesses — and not one client has had to hire someone to fix my work. That's the only metric I actually care about. ━━━━━━━━━━━━━━━━━━━━━ WHAT KIND OF PROBLEMS I SOLVE ━━━━━━━━━━━━━━━━━━━━━ 🔴 Your SaaS works — but it's slow, messy, and your team is scared to touch it. I refactor, document, and stabilize. You get a codebase that finally makes sense. 🟡 You have an idea and a deadline but no developer you trust. I scope it honestly, build it clean, and ship it. MVP to production in 3–6 weeks. 🟢 You're scaling and your current architecture won't survive the next 10,000 users. I redesign what needs to be redesigned — not everything, just what matters. 🔵 You need AI in your product but don't want a chatbot demo nobody uses. I build AI features that solve real workflow problems using OpenAI API, not just wrappers. ━━━━━━━━━━━━━━━━━━━━━ WHAT I'VE ACTUALLY BUILT ━━━━━━━━━━━━━━━━━━━━━ ✔ SaaS platform with multi-tenant architecture and automated Stripe billing — built from scratch, launched on time ✔ AI-powered web app with OpenAI/ChatGPT — real features, not a demo, in active production ✔ Healthcare booking platform with patient portal, admin panel, and HIPAA-aware data flow ✔ Next.js eCommerce storefront — 40%+ organic traffic increase post-launch ✔ Legacy MERN codebase rescue — 50%+ improvement in load times, team can now ship without fear These aren't case study headlines. These are the projects I'll show you on a call. ━━━━━━━━━━━━━━━━━━━━━ THE STACK (in case you need the list) ━━━━━━━━━━━━━━━━━━━━━ Frontend: React.js, Next.js (SSR, SSG, ISR, App Router), TypeScript, Tailwind CSS, Material UI, Redux Toolkit, Zustand Backend: Node.js, Express.js, NestJS, REST APIs, GraphQL, WebSockets Database: MongoDB, PostgreSQL, MySQL, Firebase, Supabase, Redis AI & LLM: OpenAI API, ChatGPT Integration, LangChain, AI-powered features in production Auth: JWT, OAuth2, NextAuth, Firebase Auth, role-based access control DevOps: AWS (EC2, S3, RDS, Lambda), Docker, Vercel, GCP, GitHub Actions, CI/CD Payments: Stripe (Connect, Billing, Webhooks), PayPal, Razorpay ━━━━━━━━━━━━━━━━━━━━━ THREE THINGS I WON'T DO ━━━━━━━━━━━━━━━━━━━━━ ✗ I won't give you a timeline I can't keep. If something takes 4 weeks, I'll tell you 4 weeks — not 2. ✗ I won't write code only I can understand. Every project gets documentation your next hire can follow. ✗ I won't disappear after delivery. If something breaks in the first 30 days, that's still my problem. ━━━━━━━━━━━━━━━━━━━━━ HOW TO KNOW IF WE'RE A FIT ━━━━━━━━━━━━━━━━━━━━━ You're a fit if: → You need a developer who treats your product like it's their own → You've been burned before and need someone with a track record, not just a portfolio → You want production-ready, not "it works on my machine" → You value honest communication over comfortable lies We're not a fit if: → You need someone to start today with zero discovery → You want the cheapest option (I'm not the most expensive, but I'm not the cheapest either) → You need someone to just execute a ticket list without thinking ━━━━━━━━━━━━━━━━━━━━━ READY? ━━━━━━━━━━━━━━━━━━━━━ Send me 3 sentences about your project. Not a spec doc — just the problem, the goal, and the timeline. I'll reply within 4 hours with either a clear plan or an honest "I'm not the right fit." Either way, you'll know exactly where you stand. Keywords: MERN Stack Developer, Full Stack Developer, React.js Developer, Next.js Developer, Node.js Developer, Express.js Developer, MongoDB Developer, TypeScript Developer, JavaScript Developer, SaaS Developer, MVP Developer, AI Integration Developer, OpenAI API, ChatGPT Integration, REST API Developer, GraphQL Developer, Admin Dashboard Developer, CRM Developer, ERP Developer, NestJS Developer, Stripe Integration, eCommerce Developer, Full Stack React Developer, Full Stack Node Developer, Next.js SSR, Next.js App Router, WebSocket Developer, Redux Toolkit, Tailwind CSS, AWS Developer, Docker, Supabase, Firebase, SaaS Platform Developer, Multi-tenant SaaS, Real-time Application, Full Stack Web Developer, Backend Developer, Frontend Developer

Front-End Developer with 4+ years of experience building modern, responsive, and high-performance web applications using React, Next.js, Vue.js, Nuxt.js, and TypeScript. I specialize in developing scalable SaaS platforms, AI-powered applications, dashboards, and polished user interfaces with strong attention to performance, clean architecture, and user experience. I help startups and businesses transform ideas into fast, modern, and visually impressive products. What I Can Help You With ✅ SaaS Application Development ✅ AI-Powered Web Applications ✅ OpenAI API Integration ✅ Chatbot Interfaces ✅ Modern Landing Pages ✅ Dashboard & Admin Panels ✅ API Integration ✅ Responsive & Mobile-First Development ✅ Pixel Perfect UI Development ✅ Figma / PSD / XD to Code ✅ Front-End Architecture & Refactoring ✅ Performance Optimization I enjoy working on ambitious and challenging projects where quality and user experience truly matter. If you're looking for a developer who can build modern SaaS platforms, AI-powered products, or polished front-end experiences — let’s work together 🚀

In balancing demanding requirements as a web developer, I take steps to fully understand what is expected of me, prioritize my tasks, and maintain an open line of communication with the client. Ensuring client satisfaction is a top priority, but I am committed to delivering high-quality, bug-free code and avoiding ineffective shortcuts that could compromise the final product. I keep the client updated on my progress and work diligently to complete tasks efficiently.

Total Year of Experience: 8 Years. I want to build my career as a Freelancer. I am searching for an opportunity to show my skills & experience. I am a really hard-working and responsible individual, with plenty of experience & good computer skills. I am an individual who is willing to learn and enhance my skills using my talent and ability. I want to prove myself motivated to all of you. Availability 8:00 AM EST till 4:00 PM PST Matching American Work Hours EXPERT IN 1.PHP 1.LARAVEL. 4.HTML 5.CSS 6.VUE.JS 7.REACT.JS 8.JQUERY 9.JAVSASCRIT 10.Angular 11. React(NextJs), 12.Nodejs(ExpressJS, Nestjs). 13.My SQL 14.Postgresql

Ladies & gentlemen, I am a full-stack developer with years of experience in IT, during this time I develop, host, and manage complex web-based software applications. I would be glad to improve the efficiency of your work processes by implementing qualified tools in your current or future system. I have extensive experience in developing internal software with various features and functions (costing, calculations, automation, conversion, etc.) with the possibility of monetization depending on your plans. For complex tasks and calculation-intense problems, I use: - PHP, Laravel, Symfony, Yii2, Zend, Node.js, Next.js - JavaScript frameworks: JQuery, Vue.js, React.js, - Databases, SQL & NoSQL: MySQL, PostgreSQL, Elastic Search, MongoDB I believe in concepts such as communication, accountability, transparency, flexibility, and most importantly, results since my slogan is - '' Do everything 100% or don't bother with it at all'' Best Regards Serhii keywords to find me: • End-to-End Software Development for Startups • Minimum Viable Product (MVP) development • Business Automation • Improvement and customization of existing projects • SAAS solutions • E-commerce • Marketplaces • Social Networks • CRM, ERP, HRM, HMS systems • GPT-3/4, ML integration • Landing Page development • AWS • Digitalocean • Google Cloud Platform • Linode • Custom • Vue.js (Vue, VueJS), Vuetify, Nuxt • React (ReactJS, React.js) • Angular (AngularJS, Angular.js) • Alpine.js • TypeScript (Type Script) • Tailwind • SCSS / LESS • PHP • Laravel • Lumen • Yii, Yii2 • Symfony • CakePHP • Node.js • Adonis.js • PostgreSQL • MySQL (MariaDB) • MongoDB • Firebase • Redis • Elasticsearch • Solr • Amazon Redshift • AWS SQS • RabbitMQ • Laravel Horizon • Apache Kafka • Sentry.io • Snyk • New Relic • Kibana • Opsgene • Node.js • Next.js • Much more

I’m a 𝗙𝘂𝗹𝗹𝘀𝘁𝗮𝗰𝗸 𝗣𝗛𝗣 𝗟𝗮𝗿𝗮𝘃𝗲𝗹 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 with 𝟱𝟬+ 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗳𝘂𝗹𝗹𝘆 𝗰𝗼𝗺𝗽𝗹𝗲𝘁𝗲𝗱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀, building 𝗰𝘂𝘀𝘁𝗼𝗺 𝘄𝗲𝗯 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀, 𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀, 𝗮𝗱𝗺𝗶𝗻 𝗱𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀, 𝗮𝗻𝗱 𝗲𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀. I specialize in 𝗟𝗮𝗿𝗮𝘃𝗲𝗹, 𝗥𝗲𝗮𝗰𝘁.𝗷𝘀, 𝗩𝘂𝗲.𝗷𝘀, 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁, 𝗷𝗤𝘂𝗲𝗿𝘆, 𝗛𝗧𝗠𝗟, 𝗖𝗦𝗦, and modern frontend frameworks, with strong experience in cl𝗼𝘂𝗱 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 (𝗔𝗪𝗦, 𝗔𝘇𝘂𝗿𝗲), 𝗔𝗣𝗜 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀, 𝗽𝗮𝘆𝗺𝗲𝗻𝘁 𝗴𝗮𝘁𝗲𝘄𝗮𝘆𝘀, 𝗮𝗻𝗱 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘄𝗲𝗯 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀. I deliver 𝗵𝗶𝗴𝗵-𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲, 𝘀𝗲𝗰𝘂𝗿𝗲, 𝗮𝗻𝗱 𝗦𝗘𝗢-𝗳𝗿𝗶𝗲𝗻𝗱𝗹𝘆 𝘄𝗲𝗯 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 with 𝗰𝗹𝗲𝗮𝗻, 𝗺𝗮𝗶𝗻𝘁𝗮𝗶𝗻𝗮𝗯𝗹𝗲 𝗰𝗼𝗱𝗲 and 𝟭𝟬𝟬% 𝗰𝗹𝗶𝗲𝗻𝘁 𝘀𝗮𝘁𝗶𝘀𝗳𝗮𝗰𝘁𝗶𝗼𝗻. 𝗟𝗲𝘁’𝘀 𝗰𝗼𝗻𝗻𝗲𝗰𝘁 and 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝘁𝗼 𝗰𝗿𝗲𝗮𝘁𝗲 𝗺𝗼𝗱𝗲𝗿𝗻, 𝗵𝗶𝗴𝗵-𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲, 𝗮𝗻𝗱 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘄𝗲𝗯 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 tailored to your business needs! 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: → 𝗥𝗲𝗮𝗰𝘁.𝗷𝘀 → 𝗩𝘂𝗲.𝗷𝘀 → 𝗜𝗻𝗲𝗿𝘁𝗶𝗮.𝗷𝘀 → 𝗕𝗼𝗼𝘁𝘀𝘁𝗿𝗮𝗽 → 𝗗𝗮𝗶𝘀𝘆𝗨𝗜 → 𝗧𝗮𝗶𝗹𝘄𝗶𝗻𝗱 𝗖𝗦𝗦 → 𝗖𝗦𝗦, 𝗛𝗧𝗠𝗟 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 / 𝗦𝗲𝗿𝘃𝗲𝗿: → 𝗣𝗛𝗣 → 𝗟𝗮𝗿𝗮𝘃𝗲𝗹 → 𝗟𝘂𝗺𝗲𝗻 → 𝗥𝗘𝗦𝗧𝗳𝘂𝗹 𝗔𝗣𝗜𝘀 → 𝗚𝗿𝗮𝗽𝗵𝗤𝗟 𝗖𝗹𝗼𝘂𝗱 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀: → 𝗔𝗪𝗦 → 𝗔𝘇𝘂𝗿𝗲 → 𝗗𝗶𝗴𝗶𝘁𝗮𝗹𝗢𝗰𝗲𝗮𝗻 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗧𝘆𝗽𝗲𝘀 𝗘𝗥𝗣 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 → 𝗜𝗻𝘃𝗲𝗻𝘁𝗼𝗿𝘆 & 𝗦𝘁𝗼𝗰𝗸 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺 → 𝗠𝗮𝗻𝘂𝗳𝗮𝗰𝘁𝘂𝗿𝗶𝗻𝗴 𝗘𝗥𝗣 𝗳𝗼𝗿 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗧𝗿𝗮𝗰𝗸𝗶𝗻𝗴 → 𝗛𝗥 & 𝗣𝗮𝘆𝗿𝗼𝗹𝗹 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺 𝗖𝗥𝗠 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 → 𝗖𝗹𝗶𝗲𝗻𝘁 & 𝗟𝗲𝗮𝗱 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺 → 𝗦𝗮𝗹𝗲𝘀 & 𝗠𝗮𝗿𝗸𝗲𝘁𝗶𝗻𝗴 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 𝗧𝗼𝗼𝗹𝘀 → 𝗖𝘂𝘀𝘁𝗼𝗺𝗲𝗿 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 𝗧𝗶𝗰𝗸𝗲𝘁𝗶𝗻𝗴 𝗦𝘆𝘀𝘁𝗲𝗺 𝗘𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 → 𝗠𝘂𝗹𝘁𝗶-𝘃𝗲𝗻𝗱𝗼𝗿 𝗠𝗮𝗿𝗸𝗲𝘁𝗽𝗹𝗮𝗰𝗲 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 → 𝗢𝗻𝗹𝗶𝗻𝗲 𝗦𝘁𝗼𝗿𝗲𝘀 𝘄𝗶𝘁𝗵 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗚𝗮𝘁𝗲𝘄𝗮𝘆 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 → 𝗦𝘂𝗯𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻-𝗯𝗮𝘀𝗲𝗱 𝗘𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗪𝗲𝗯𝘀𝗶𝘁𝗲𝘀 𝗗𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀 / 𝗔𝗱𝗺𝗶𝗻 𝗣𝗮𝗻𝗲𝗹𝘀 → 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 & 𝗥𝗲𝗽𝗼𝗿𝘁𝗶𝗻𝗴 𝗗𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀 → 𝗘𝗺𝗽𝗹𝗼𝘆𝗲𝗲 & 𝗧𝗮𝘀𝗸 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗣𝗮𝗻𝗲𝗹𝘀 → 𝗦𝗮𝗹𝗲𝘀 & 𝗥𝗲𝘃𝗲𝗻𝘂𝗲 𝗠𝗼𝗻𝗶𝘁𝗼𝗿𝗶𝗻𝗴 𝗗𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀 𝗦𝗮𝗮𝗦 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 → 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗧𝗼𝗼𝗹𝘀 → 𝗢𝗻𝗹𝗶𝗻𝗲 𝗕𝗼𝗼𝗸𝗶𝗻𝗴 & 𝗦𝗰𝗵𝗲𝗱𝘂𝗹𝗶𝗻𝗴 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 → 𝗖𝘂𝘀𝘁𝗼𝗺 𝗦𝗮𝗮𝗦 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝘀 𝗳𝗼𝗿 𝗡𝗶𝗰𝗵𝗲 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝗕𝗼𝗼𝗸𝗶𝗻𝗴 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 → 𝗛𝗼𝘁𝗲𝗹 & 𝗧𝗿𝗮𝘃𝗲𝗹 𝗕𝗼𝗼𝗸𝗶𝗻𝗴 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 → 𝗘𝘃𝗲𝗻𝘁 & 𝗔𝗽𝗽𝗼𝗶𝗻𝘁𝗺𝗲𝗻𝘁 𝗦𝗰𝗵𝗲𝗱𝘂𝗹𝗶𝗻𝗴 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 → 𝗥𝗲𝘀𝘁𝗮𝘂𝗿𝗮𝗻𝘁 𝗥𝗲𝘀𝗲𝗿𝘃𝗮𝘁𝗶𝗼𝗻 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 (𝗟𝗠𝗦) → 𝗢𝗻𝗹𝗶𝗻𝗲 𝗖𝗼𝘂𝗿𝘀𝗲 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 → 𝗦𝘁𝘂𝗱𝗲𝗻𝘁 & 𝗧𝗲𝗮𝗰𝗵𝗲𝗿 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 → 𝗘𝘅𝗮𝗺 & 𝗔𝘀𝘀𝗲𝘀𝘀𝗺𝗲𝗻𝘁 𝗧𝗼𝗼𝗹𝘀 𝗙𝗶𝗻𝘁𝗲𝗰𝗵 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 → 𝗢𝗻𝗹𝗶𝗻𝗲 𝗕𝗮𝗻𝗸𝗶𝗻𝗴 & 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗔𝗽𝗽𝘀 → 𝗜𝗻𝘃𝗲𝘀𝘁𝗺𝗲𝗻𝘁 & 𝗣𝗼𝗿𝘁𝗳𝗼𝗹𝗶𝗼 𝗧𝗿𝗮𝗰𝗸𝗶𝗻𝗴 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 → 𝗖𝗿𝘆𝗽𝘁𝗼𝗰𝘂𝗿𝗿𝗲𝗻𝗰𝘆 𝗪𝗮𝗹𝗹𝗲𝘁𝘀 & 𝗘𝘅𝗰𝗵𝗮𝗻𝗴𝗲𝘀 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 → 𝗧𝗲𝗹𝗲𝗺𝗲𝗱𝗶𝗰𝗶𝗻𝗲 & 𝗔𝗽𝗽𝗼𝗶𝗻𝘁𝗺𝗲𝗻𝘁 𝗕𝗼𝗼𝗸𝗶𝗻𝗴 𝗔𝗽𝗽𝘀 → 𝗣𝗮𝘁𝗶𝗲𝗻𝘁 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 & 𝗘𝗠𝗥 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 → 𝗛𝗲𝗮𝗹𝘁𝗵 𝗠𝗼𝗻𝗶𝘁𝗼𝗿𝗶𝗻𝗴 𝗗𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀 𝗣𝗼𝗿𝘁𝗳𝗼𝗹𝗶𝗼 / 𝗖𝗼𝗺𝗽𝗮𝗻𝘆 𝗪𝗲𝗯𝘀𝗶𝘁𝗲𝘀 → 𝗖𝗼𝗿𝗽𝗼𝗿𝗮𝘁𝗲 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗪𝗲𝗯𝘀𝗶𝘁𝗲𝘀 → 𝗣𝗲𝗿𝘀𝗼𝗻𝗮𝗹/𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗣𝗼𝗿𝘁𝗳𝗼𝗹𝗶𝗼𝘀 → 𝗦𝘁𝗮𝗿𝘁𝘂𝗽 𝗟𝗮𝗻𝗱𝗶𝗻𝗴 𝗣𝗮𝗴𝗲𝘀 & 𝗠𝗮𝗿𝗸𝗲𝘁𝗶𝗻𝗴 𝗪𝗲𝗯𝘀𝗶𝘁𝗲𝘀

Are you looking for a battle-tested Senior Full-Stack Developer to architect modern, scalable, and high-performance applications? With a proven track record spanning over 8 years of professional engineering, I specialize in building production-grade software from scratch, rescuing legacy codebases, and integrating cutting-edge AI capabilities. From Y Combinator-backed startups to enterprise-level ERP providers across the US, UK, and Germany, I don't just write code—I design future-proof, self-healing architectures that solve complex business challenges in Fintech, Logistics, E-Commerce, and HealthTech. 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 𝐈 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 → Languages: Ruby · JavaScript / TypeScript · Python → Backend: Ruby on Rails · Node.js (Express.js, NestJS) · Sidekiq · Kafka · RabbitMQ · BullMQ · WebSockets → Frontend: React.js · Next.js · Vue.js · Angular · Redux · Tailwind CSS · Material UI → APIs & Integrations: RESTful APIs · GraphQL · Third-Party Integrations → Databases & Search: PostgreSQL · MySQL · MongoDB · Redis · Elasticsearch · DynamoDB · Firebase → Cloud & DevOps: AWS (EC2, S3, RDS, Lambda, EventBridge) · Docker · GitHub Actions · CI/CD · Heroku · DigitalOcean · 𝗪𝗵𝗮𝘁 𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝗪𝗶𝘁𝗵 𝗠𝗲 𝗔𝗰𝘁𝘂𝗮𝗹𝗹𝘆 𝗟𝗼𝗼𝗸𝘀 𝗟𝗶𝗸𝗲 → Built to Scale: I design architectures that seamlessly handle a 5x surge in traffic and data load, ensuring your software grows alongside your business without requiring costly code changes. → End-to-End Ownership: From complex database modeling to high-fidelity frontend execution, I manage the full lifecycle, eliminating the need to coordinate multiple specialists. → Agile Communication: I maintain a proactive, transparent feedback loop, giving you complete visibility into milestones, blockers, and code deployment. → On-Time, On-Budget Handoffs: My development process is optimized for efficiency, ensuring predictable delivery timelines and highly customized product features. → Pragmatic, Data-Driven Thinking: I look at your product through a commercial lens, ensuring every architectural decision supports your user retention and business goals. → Zero Technical Debt: Through strict code reviews, modular engineering patterns, and comprehensive unit testing, I deliver a clean codebase that your team can easily scale. Let’s connect to build an agile, transparent partnership focused on clean code, predictable delivery, and long-term product success.

You deserve a developer who sees the big picture. I combine powerful software engineering with modern AI tools to build intelligent systems that save you time. You can trust me to manage your entire technical environment from the code to the cloud to ensure your application runs fast and stays online. I believe that great software is about solving real business problems not just writing lines of code. When you work with me you are not just hiring a developer you are gaining a dedicated technical partner who cares about your success. I take the time to listen to your goals so I can build a solution that fits your specific needs perfectly. My expertise in full stack development means I handle the entire process from the database to the design so you never have to worry about the details. You get a fast and secure application that grows with your business and allows you to focus on what you do best. My goal is to be the reliable technical partner you have been looking for. I treat every project like my own business, I focus on stability and real results rather than just writing code. You get a dedicated expert who handles the complexity of development so you can reclaim your time and focus on growing your company. You need technology that works for you not against you. I have curated a powerful stack of modern tools that allow me to build applications that are fast secure and easy to manage. My technical expertise ensures that your project is built on a solid foundation that can handle growth and deliver a smooth experience to your users. • Laravel • Laravel Inertia • Laravel Livewire • Laravel Reverb • Laravel Scout • Laravel Cashier • Laravel Passport • CodeIgniter 3, Perfex CRM • React.js, Vue.js • MySQL, PostgreSQL, • DevOps, AWS, Kubernetes, Terraform, Ansible I don’t just write code I help you build your business. Bring me your vision, even if it’s just a rough concept or a list of ideas, and I’ll turn it into a working application that actually solves your problems. I handle the servers, the bugs, and the architecture so you can stop worrying about the tech and get back to what you do best. Real trust is earned by delivering results. In profile below you can see the honest reviews and experiences of business owners who have already hired me. They will tell you that I solve problems fast and treated their business like it is my own. You have a vision and I have the tools to build it. Whether you have a complete project plan or just a few rough ideas I am ready to help you find the best technical path forward. Send me a message and I will get back to you within 24 hours to discuss how we can turn your goals into a reality.

Hi, I’m Kuldeep — a passionate, dependable, and results-driven Full Stack Developer with over 16+ years of experience building and scaling web, mobile, and AI-powered applications that solve real-world problems and drive business growth. Since 2009, I’ve worked across diverse industries — from EdTech and HealthTech to Web3, Travel, Real Estate, and Productivity SaaS — developing everything from MVPs to full-scale platforms. My work always focuses on clean, maintainable architecture, elegant UI/UX, and seamless user experiences. 🧠 Tech Expertise ✅ Frontend Frameworks: Next.js • React.js • Vue.js • Nuxt.js • Tailwind CSS • React Native ✅ Backend Frameworks: Node.js • Express.js • NestJS • FastAPI • Laravel ✅ Database & ORM: Prisma • Drizzle ORM • Mongoose • Supabase • PostgreSQL • MongoDB 🤖 AI Development Experience RAG + LangChain Pipelines: Built AI-powered Retrieval-Augmented Generation bots using LangChain + OpenAI for document-heavy dashboards. Implemented vector search with PGVector/Supabase and optimized metadata + chunking for better context recall. Insurance AI Agent: Developed a full-cycle AI assistant that helps customers describe needs, get quotes, make payments, and download policy documents using GPT + third-party APIs. SQL Assistant for Enterprises: Created a GPT-powered AI tool for internal dev teams to document complex schemas, auto-generate and optimize SQL queries (PostgreSQL, MySQL, SQL Server), and integrate into team workflows. Sales Qualification AI Agents: Built B2B agents to evaluate ICP-fit of inbound leads by scraping public web data and matching with internal profiles via OpenAI + scraping APIs, deployed via n8n and React. Multilingual Chat Assistants: Integrated LLMs like GPT-4, Claude, and Gemini into React Native and Next.js apps for real-time chat, support ticket generation, and lead follow-ups. 🌟 Highlighted Projects 🔒 GeoLock.co – Smart parenting platform with AI-based usage analysis, screen-time control, and geofencing 🎓 GeoCampus.co – EdTech platform using patented geofencing for distraction-free learning 📈 SQOR.io – Real-time monitoring dashboard using GPT-4 + TypeScript + Python 💼 WorkCradle.com – AI-enhanced productivity tracker (Vue + Electron) 📄 VR SecureDocs – Document ERP system with AI assistant for document navigation 💳 DebitBee.in – Digital ledger with GPT-powered reminders and insights 🌍 Maya Travels + K1 Travel Portal – Scalable travel SaaS platforms 🧠 Tracklabs.in – Employee tracking SaaS with analytics dashboard and desktop agent 💼 What I Bring to Your Project ✅ Full-stack + AI development expertise ✅ Clean, scalable, and maintainable architecture ✅ Strong DevOps, CI/CD, and deployment (AWS, Azure, GCP, Vercel) ✅ Agile team player with excellent communication ✅ Speed + Quality — I ship fast without sacrificing quality 💬 Let’s Talk Whether you need a long-term engineering partner, AI strategist, or someone to accelerate your MVP, I bring clarity, commitment, and code that performs. I’m happy to walk through case studies or demo any feature I’ve built. Let’s build something impactful together.