Express JS Developers For Hire
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Hire chima25
"We're very happy with Chima's work, and we're ending this project but still keeping him on our payroll." Those were the words of a happy client in the travel industry after I built an AI-powered travel booking web application. And he's continued to hire me over and over again. Now to you who're reading right..."We're very happy with Chima's work, and we're ending this project but still keeping him on our payroll." Those were the words of a happy client in the travel industry after I built an AI-powered travel booking web application. And he's continued to hire me over and over again. Now to you who're reading right now.. Clients come here when: - they want to build something AI-powered - their product needs to feel smarter. - their search is broken, - or their booking flow leaks users, And they need it built clean. That's the exact gap that gets closed here: Web applications that don't just render, but think and respond. AI woven into search, booking flows, discovery engines, and product logic. That's what I build for companies & businesses where UX directly moves revenue. WHAT I BUILD: 🔍Intent-aware search. Not just keywords. Hybrid pipelines (BM25 + vectors + re-ranking) that surface what users mean. ⚡ AI in live systems: booking flows, real APIs, real inventory. Not demos. Not wrappers around ChatGPT. 🏗️ Frontend architecture that scales: Next.js, TypeScript, component systems built to last. 🌍 Proven in production: currently shipping for a luxury travel group (Sweden/Spain) across trip discovery, cruise search & multi-destination booking. 🏠 Strong fit for: Luxury Travel · Real Estate · E-commerce · SaaS tools where search or AI interaction drives conversions. HOW I WORK: - Every project starts from the user problem, not the tech stack. - Whether it is semantic search, a vector database integration, or a streaming AI interface, the goal is always the same: fewer clicks, faster answers, higher conversions. SERVICES - AI integration into existing frontends. - RAG (Retrieval Augmented Generation) pipeline development. - AI-powered search & natural language search UX. - Next.js application development. - API integration. - Vercel AI SDK implementation. - Prompt engineering for product features. MY CORE FRONTEND SKILLS: - Next.js / React (React Hooks, App Router, Server Components, Server Actions) - TypeScript / JavaScript - Tailwind CSS3, SaSS, SCSS, HTML5, Responsive Design - Framer Motion - Radix UI, Shadcn/UI - React Hook Form, Zod, class-variance-authority - Web Performance, Core Web Vitals CORE AI ENGINEERING SKILLS - AI Integration - Vercel AI SDK - RAG (Retrieval-Augmented Generation) - Vector Database / Pinecone - Vector Search / Semantic Search - OpenAI API / ChatGPT Integration - Google Gemini - LLM Integration - AI Chatbot - Conversational AI: BM25 Hybrid, Search Embeddings, Text Embeddings. - Prompt Engineering, - AI-Powered Search, - Reranking / Reciprocal Rank Fusion. - Chunking - Intent Detection. - Natural Language Search. - AI Search UX / Tool Calling / Function Calling TOOLS & WORKFLOW - Git / GitHub - npm / pnpm - ESLint / Prettier - CI/CD Vercel Deployment - Google Maps API - Claude Code If your users deserve a smarter experience, Then do one thing: click the top-right green button, and LET'S BEGIN! Chima less -
Hire Guptapuru304
Top 1% on Freelancer.com | 200+ Clients | 8+ Years of Experience | Proven Record of Top-Rated Results End-to-End Expert in AI-First Product Development, Automation, Web Platforms & Intelligent Systems ⚡⚡ All-in-One Solution Provider ⚡⚡ AI, LLMs, RAG Systems, Web Development, Automation, Data Mining, n8n Workflows,...Top 1% on Freelancer.com | 200+ Clients | 8+ Years of Experience | Proven Record of Top-Rated Results End-to-End Expert in AI-First Product Development, Automation, Web Platforms & Intelligent Systems ⚡⚡ All-in-One Solution Provider ⚡⚡ AI, LLMs, RAG Systems, Web Development, Automation, Data Mining, n8n Workflows, and Scalable Applications ⚡ Goals & Motivation - Customer-Centric Delivery: Outcomes designed to meet real-world needs and exceed expectations - AI-First Thinking: Architecting modern products around intelligence, adaptability, and automation - Uncompromised Quality: Robust, scalable, maintainable engineering — every time - Transparent Collaboration: Build trust through clarity, ownership, and iteration - Value-Driven Pricing: Competitive rates without compromising on execution ⚡ AI & LLM Integration - Building intelligent assistants and AI-native UIs using OpenAI, Claude, and open-source LLMs - Implementing Retrieval-Augmented Generation (RAG) systems for real-time, context-aware knowledge retrieval - Building secure and private LLM endpoints using FastAPI + Vector DBs (Pinecone, Weaviate, Qdrant) ⚡ Automation & Workflows - Advanced n8n workflows for event-driven automation and SaaS orchestration - Business logic pipelines, ETL processes, and intelligent job routing ⚡ Full-Stack Development - Web apps using Next.js, React, and Tailwind - Backend APIs using Django, Flask, FastAPI, Laravel ⚡ API, Auth, and Integrations - REST/GraphQL APIs, OAuth2, and secure integrations with Stripe, Slack, HubSpot, Notion, Firebase, and more ⚡ Data Mining & Intelligence - Web scraping, enrichment, lead gen automation, and structured data pipelines - ML-driven classification, anomaly detection, clustering, and recommender systems using scikit-learn and HuggingFace Transformers ⚡ AI-Enabled SaaS & DevOps - Cloud-native architecture on GCP/AWS - Production-grade deployment with Docker, Kubernetes, CI/CD, and observability Let's build something intelligent, scalable, and impactful. -> Ready to start? Drop a message and let's chat. less -
Hire gotucat
SYMLINK TECHNOLOGIES LLP is a modern full-stack development company specializing in AI-powered SaaS platforms, custom web applications, mobile app development, eCommerce solutions, and scalable cloud infrastructure. With 12+ years of experience, we help startups, SMEs, and enterprises turn ideas into high-performance...SYMLINK TECHNOLOGIES LLP is a modern full-stack development company specializing in AI-powered SaaS platforms, custom web applications, mobile app development, eCommerce solutions, and scalable cloud infrastructure. With 12+ years of experience, we help startups, SMEs, and enterprises turn ideas into high-performance digital products. We combine strong engineering with modern technologies to build secure, scalable, and user-friendly solutions. Our expertise includes: AI-powered SaaS application development Custom web application development Cross-platform mobile app development with Flutter and React Native eCommerce development with Magento, WooCommerce, and Shopify Backend systems, APIs, and third-party integrations Cloud, DevOps, and Linux server management Technology stack: Frontend: React.js, Next.js, Angular, Bootstrap Backend: Node.js, Laravel, PHP, Express.js Mobile: Flutter, React Native, Ionic AI & Automation: OpenAI integrations, AI chatbots, workflow automation, smart business tools CMS / eCommerce: WordPress, Joomla, Magento, Shopify DevOps / Cloud: Docker, NGINX, cPanel, Linux servers Why clients choose us: 12+ years of real-world development experience Modern, scalable, and secure solutions Clear communication and fast response Clean code and reliable project delivery Long-term support and technical partnership Whether you need an AI SaaS platform, a Flutter mobile app, a custom web solution, or complete full-stack development support, we are ready to build solutions that help your business grow. less -
Hire rawdaymohamed
🚀 Full-stack MERN & Next.js developer helping startups and growing businesses build and scale modern SaaS platforms, dashboards, admin panels, AI-powered tools, and custom web applications. I specialize in frontend-heavy applications using React.js, Next.js, TypeScript, Node.js, Express.js, MongoDB, REST APIs, and...🚀 Full-stack MERN & Next.js developer helping startups and growing businesses build and scale modern SaaS platforms, dashboards, admin panels, AI-powered tools, and custom web applications. I specialize in frontend-heavy applications using React.js, Next.js, TypeScript, Node.js, Express.js, MongoDB, REST APIs, and Tailwind CSS, with experience contributing to social platforms, business tools, scalable SaaS products, and cloud-based web applications. Over the past year, I’ve worked with international startup clients on NDA-protected projects, contributing to: ✔ Full-stack web development ✔ Backend API development ✔ Authentication & authorization ✔ Database design & optimization ✔ Deployment workflows (Vercel, NginX) ✔ Bug fixing & performance optimization ✔ Responsive UI/UX implementation ✔ Feature development & maintenance ✔ Real-time features & dynamic dashboards One of my strongest skills is quickly understanding existing codebases and contributing independently without requiring constant guidance. Clients appreciate my clear communication, problem-solving ability, attention to detail, and commitment to delivering clean, scalable, maintainable code. Technologies & tools I commonly work with: ✔ React.js ✔ Next.js ✔ TypeScript ✔ JavaScript (ES6+) ✔ Node.js ✔ Express.js ✔ MongoDB ✔ Mongoose ✔ Tailwind CSS ✔ Redux Toolkit ✔ TanStack Query ✔ REST APIs ✔ Git & GitHub ✔ Vercel ✔ Postman ✔ Responsive & mobile-first development Areas I commonly work on include: ✔ SaaS applications ✔ Full-stack MERN applications ✔ Next.js applications ✔ Admin dashboards & CRM systems ✔ Authentication systems ✔ CRUD applications ✔ API integration & backend validation ✔ Search, filtering & pagination ✔ Form validation ✔ Responsive landing pages ✔ Bug fixing & refactoring ✔ Converting Figma designs to React/Next.js ✔ Maintaining and scaling existing products ⚡ I focus on building fast, modern, user-friendly applications that are scalable, maintainable, and optimized for performance. 🤝 If you’re looking for a developer who can adapt quickly, contribute independently, and build high-quality modern web applications with attention to usability, scalability, and clean architecture, feel free to reach out, I’d be happy to discuss your project. less -
Hire salmanshahid5432
salmanshahid5432 salmanshahid5432
$15 USD / hour
Full Stack Developer Who Builds What ShipsPakistanI have helped founders ship 60+ products. Some are now doing $80k+ MRR. Let's talk about yours. I have been building full stack products for 4 years web apps, mobile, and AI integrations. I do not just write code. I think about your product's growth, your users experience, and your team's ability to maintain what gets...I have helped founders ship 60+ products. Some are now doing $80k+ MRR. Let's talk about yours. I have been building full stack products for 4 years web apps, mobile, and AI integrations. I do not just write code. I think about your product's growth, your users experience, and your team's ability to maintain what gets built. If something is not feasible, I will tell you before you spend a dollar on it and I back that with a 100% refund guarantee if I ever set wrong expectations 𝐌𝐲 𝐒𝐭𝐚𝐭𝐬: 🌟 5 star review streak across all projects 💯 100% Job Success Score on time, on budget 💰 Helped startups reach $80k+ MRR 💸 $50k+ earned across platforms 🏅 4+ years of full stack experience 𝐌𝐲 𝐓𝐨𝐨𝐥𝐤𝐢𝐭: ◾ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React.js, Next.js, Vue.js, TypeScript, Tailwind CSS, Sass/SCSS, Framer, Web Animations, Progressive Web Apps ◾𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Node.js, Express.js, Nest.js, Laravel, Python, REST & GraphQL APIs, MERN Stack ◾ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MongoDB, MySQL, PostgreSQL, NoSQL, API Integration, CMS platforms ◾ 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: LLMs, AI Agents, Generative AI, LLM Integration, Prompt Engineering, NLP, OpenAI APIs, Workflow Automation ◾ 𝐌𝐨𝐛𝐢𝐥𝐞: React Native, Android SDK, Kotlin, Java 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮 𝐰𝐢𝐥𝐥 𝐆𝐞𝐭 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞: ◾ Responses under 30 minutes unless I am asleep ◾ Code that your future self can actually read and maintain ◾ A straight "no" when something won't work no runaround, no wasted time ◾ A product built around your users, not just your requirements doc 𝐌𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐒𝐚𝐲: ◾ "Salman is an amazing contractor, bringing a wealth of talent, intelligence, and experience to our team. His communication was superb, and he delivered code of excellent quality." ◾ "Excellent knowledge, willingness to share, and the ability to simplify complex topics." 𝐀𝐛𝐨𝐮𝐭 𝐌𝐞: I hve been building full stack products for 4 years first in house, then independently. Going freelance was not a fallback it was a deliberate move to work closer with founders and actually care about what ships. I have worked across early MVPs, mid stage SaaS builds, and complex AI integrations. I take on fewer projects so I can do each one properly 𝐖𝐞 𝐂𝐚𝐧 𝐁𝐞 𝐀 𝐆𝐨𝐨𝐝 𝐌𝐚𝐭𝐜𝐡 𝐈𝐟: ✅ You need someone who can jump in and contribute from day one ✅ You are building a SaaS, web app, mobile app, or AI powered product ✅ You want AI agents, LLM features, or automation baked into your stack ✅ You are looking for a partner wh will push back when something is not the right call ✅ You need a Chrome extension, web automation tool, or productivity layer on top of an existing app 𝐖𝐞 𝐌𝐢𝐠𝐡𝐭 𝐍𝐨𝐭 𝐁𝐞 𝐀 𝐆𝐨𝐨𝐝 𝐅𝐢𝐭 𝐈𝐟: ❌ You want someone to just execute without any input or questions ❌ Mutual respect isn't something you value ❌ Your product is in the betting or adult entertainment space less -
Hire REPLATechnology
REPLATechnology REPLATechnology
$30 USD / hour
Top Rated Verified & Confirmed By Freelancer.comPakistanHello, Thank's for taking the time to visit my profile. I’m a Full-stack Experienced Software & Mobile App developer with 10 years of industry experience / Blockchain, Mobile app & Software Development with over 10 years of experience operating as a high-end professional in the Blockchain & Software Industry. My...Hello, Thank's for taking the time to visit my profile. I’m a Full-stack Experienced Software & Mobile App developer with 10 years of industry experience / Blockchain, Mobile app & Software Development with over 10 years of experience operating as a high-end professional in the Blockchain & Software Industry. My clients consistently receive polished work in a timely manner with constant communications and updates. I offer a number of services through my expertise: ● ✔ BlockChain Development ● ✔ NFT Development ● ✔ Software Development ● ✔ Web App Development ● ✔ Artificial intelligence Projects ● ✔ Mobile App Development (IOS & Android) ● ✔ Website Development ● ✔ Application Design (UI / UX) ● ✔ Figma / XD ● ✔ Website Design ● ✔ Brand Identity Design My portfolio is chock full of these design elements, and I highly suggest you peruse it to better understand my style, work & vision. Along with a team of 18 professional developers who aide me in my design, I hold my skills in high regard & would love to use them to help you create a Best Product for your business. shoot me a message! I’m available through Freelancer & will respond ASAP so that we can break down your needs and decide exactly how we will tackle them. Thanks, & have a great day, Regards less -
Hire purealmaz
Top 1% Developer | Scalable and Secured Full Stack & Mobile Solutions Ranked among the Top 20 Freelancers on this platform, I specialize in turning complex business visions into high-performance digital products. With over 9 years of experience and 750+ successful deliveries, I combine technical precision with a...Top 1% Developer | Scalable and Secured Full Stack & Mobile Solutions Ranked among the Top 20 Freelancers on this platform, I specialize in turning complex business visions into high-performance digital products. With over 9 years of experience and 750+ successful deliveries, I combine technical precision with a relentless focus on client ROI. Core Expertise Mobile: Flutter (Cross-platform), React Native, and Native iOS & Android Web & Frontend: React.js, Next.js, Angular, HTML5, Responsive and Modern Design Backend & API: Node.js, Django, FastAPI, and Laravel E-commerce: Shopify and WooCommerce Expert CMS and Builders: WordPress, Squarespace, and Webflow The Stats That Matter 400+ Mobile Apps Launched 350+ Web Platforms Built 100% On-Budget Completion Rate 100% On-Time Delivery Record 100% Acceptance Rate Why partner with me? You aren't just hiring a coder; you’re hiring a strategic partner. I provide clean, maintainable code and a seamless communication loop from kickoff to deployment. Ready to scale? Click ‘Hire Me’ and let’s discuss your project goals. less -
Hire maham1liaqat
MERN Stack & Frontend Developer specializing in React, Tailwind CSS, Node.js, and full-stack web apps. Based in Pakistan, I deliver modern, responsive, and user-friendly websites for clients worldwide. I build custom websites and web applications, implement mobile-first UI/UX, integrate backend APIs and databases,...MERN Stack & Frontend Developer specializing in React, Tailwind CSS, Node.js, and full-stack web apps. Based in Pakistan, I deliver modern, responsive, and user-friendly websites for clients worldwide. I build custom websites and web applications, implement mobile-first UI/UX, integrate backend APIs and databases, and convert designs from Figma/PSD into functional code. Clean, scalable code and clear communication ensure your project is delivered smoothly, from planning to deployment. Let’s work together to bring your digital projects to life. less -
Hire RusianD
Greetings! - Key Skills & Tools: LLM | RAG | Chatbot | Chatgpt | ML Shopify | Wordpress | Ecommerce Three.js | GSAP | Babylon.js | Blender React | Next | Node | Express | Django | FastAPI JavaScript | Typescript | Python HTML5 | CSS3 | Jquery | Bootstrap | Material UI | Tailwind CSS MySQL | PostgreSQL | MongoDB API...Greetings! - Key Skills & Tools: LLM | RAG | Chatbot | Chatgpt | ML Shopify | Wordpress | Ecommerce Three.js | GSAP | Babylon.js | Blender React | Next | Node | Express | Django | FastAPI JavaScript | Typescript | Python HTML5 | CSS3 | Jquery | Bootstrap | Material UI | Tailwind CSS MySQL | PostgreSQL | MongoDB API integration | RESTful APIs | Third-party integrations | Payment Gateway Integration | Stripe | Git | Jira - Who am I? AI integration(LLM, RAG, Chatbot and AI agent) 3D Web(Configuration, Interactive, Game, E-commerce) JavaScript Frameworks(frontend and backend) Let’s start building something amazing together! Many thanks. less -
Hire Rahul7872
At Underscore Technology Private Limited, we use cutting-edge technologies to deliver scalable, user-friendly solutions worldwide. From intuitive mobile apps to comprehensive digital strategies, we bring your ideas to life with precision and dedication. ✔️We Provide: ➡️ Services:- ✅ Website Development ✅ Android &...At Underscore Technology Private Limited, we use cutting-edge technologies to deliver scalable, user-friendly solutions worldwide. From intuitive mobile apps to comprehensive digital strategies, we bring your ideas to life with precision and dedication. ✔️We Provide: ➡️ Services:- ✅ Website Development ✅ Android & IOS App Development ✅ Graphic Design ✅ SEO , SMO , SMM ✅ Content Writing ✅ Server Administrator ➡️ Expertise:- ✅ Website Development : Next.js, React.js ✅ Backend Development : Node js, Express ✅ Database : Mongo DB, SQL, Postgres, Dynamo DB ✅ Mobile App : Kotlin , Swift , ReactNative , Flutter ✅ Graphic Design : Layout Design , Logo , Banner , Flyer , Brochures , Adobe Photoshop , Adobe.xd , Figma ✅ Web Design : PSD to HTML Page , Mobile Responsive Page , HTML , CSS , Bootstrap ✅ Devops: AWS ✅ Hosting : Domain , Hosting , Email , SSL ✔️What We Deliver: ➔ Daily Communication With Quick Replies To Messages ➔ Daily Work Update Report On Worked Things Of That Day ➔ Bug-Free Work With Proper Testing As I Know That Client Is Not Tester ➔ Guaranteed Work ➔ Ongoing Support As Needed Bases ✔️Our Achievements: ⭐ 7+ Years of Industry Experience ⭐ 30+ Expert Developers ⭐ 200+ Projects Completed Worldwide ⭐ Diverse Global Clientele less
