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 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 azaysinha
Hi, I'm Ajay Kumar Sinha, Founder & CEO of RLSoft Technology -- a modern tech-driven company delivering scalable and customized software solutions across industries. With over 5+ years of experience in full-stack development, project leadership, and digital transformation, I specialize in turning business ideas into...Hi, I'm Ajay Kumar Sinha, Founder & CEO of RLSoft Technology -- a modern tech-driven company delivering scalable and customized software solutions across industries. With over 5+ years of experience in full-stack development, project leadership, and digital transformation, I specialize in turning business ideas into intelligent and high-performance digital products. From enterprise SharePoint solutions to cutting-edge web and mobile applications, I bring a problem-solving mindset and deep technical expertise to every project. At RLSoft Technology, I've led and delivered 30+ successful projects for global clients with a focus on quality, innovation, and long-term value. Whether you're a startup, an enterprise, or an agency looking to scale, I can help you design, build, and launch your digital solution with confidence. ? My Core Skills Include: Frontend: React, Angular, HTML/CSS, Tailwind, TypeScript, JavaScript Backend: Node.js, Express.js, MongoDB, SQL, Firebase Microsoft Stack: SharePoint Online, SPFx, Power Platform, Power Automate DevOps & Tools: Azure, Git, CI/CD, REST APIs, Agile Development Extras: PDF/CSV Export, Charts (Chart.js), Barcode/QR Integration, Secure File Handling I'm always open to exciting freelance collaborations. Let's connect and build something impactful! 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 nemanjam61
I’ve led development across the full lifecycle — from architecture and backend design to front-end implementation and cloud deployment. Whether it’s a React/Next.js interface, a Node.js or Python backend, or an AWS/Azure microservice. Android/iOS. AI/ML, I deliver clean, efficient, and production-ready code. What I...I’ve led development across the full lifecycle — from architecture and backend design to front-end implementation and cloud deployment. Whether it’s a React/Next.js interface, a Node.js or Python backend, or an AWS/Azure microservice. Android/iOS. AI/ML, I deliver clean, efficient, and production-ready code. What I bring: 🌐 Deep expertise in JavaScript, TypeScript, React, Next.js, Node.js, NestJS, and Python 🗄️ Proven success with REST and GraphQL APIs, SQL/NoSQL databases, and real-time integrations☁️ Cloud and DevOps experience with AWS, Azure, Docker, and CI/CD pipelines 🍏 Skilled in mobile app development for iOS and Android using Swift, Kotlin, Flutter, and React Native, creating seamless user experiences across devices. 🤖 Strong AI/ML engineering background, with experience in TensorFlow, PyTorch, NLP, and Computer Vision, building intelligent systems and predictive models. 🐳 Strong communication, proactive problem-solving, and on-time delivery I’m passionate about building software that scales — whether it’s a SaaS product serving thousands of users or an internal automation that saves hours daily. Let’s collaborate to turn your ideas into reliable, high-quality systems that drive results. less -
Hire sumanm596
We are a design-driven technology team helping startups and growing businesses build reliable, scalable, and high-quality digital products. Our work blends clean UI/UX, strong engineering, and modern architecture to create solutions that perform well today and scale effortlessly tomorrow. We believe in clear...We are a design-driven technology team helping startups and growing businesses build reliable, scalable, and high-quality digital products. Our work blends clean UI/UX, strong engineering, and modern architecture to create solutions that perform well today and scale effortlessly tomorrow. We believe in clear communication, clean code, and long-term partnerships—not just project delivery. TECHNOLOGY STACK: Open-source Technologies: Node.js, Angular, React, Next.js, Python, and React Native. AI/ML Proficiency: Adept in AI/ML technologies, including OpenAI, NLP, Whisper, NLLB, LLama2, and more. Cloud Platforms: Proficient in AWS, GCP, and Azure, ensuring flexible deployment options. Database Experience: Hands-on experience with SQL, NoSQL, Time Series, and Graph databases, allowing us to tailor solutions to your specific data management needs We enjoy working with startups, founders, and product teams, supporting them at every stage—from early MVPs to scaled production systems. 📩 Feel free to reach out at any stage of your project. We’re always happy to discuss ideas and help you move forward. less -
Hire Fierdimo
Hi, I’m Gregorio Morales, a versatile full-stack developer specializing in JavaScript and Python, passionate about scalable web, mobile, and backend solutions that drive real results. Here’s what I do best: - **Backend & APIs**: Python (Flask/Django), Node.js (NestJS, Express), Spring Boot for robust APIs,...Hi, I’m Gregorio Morales, a versatile full-stack developer specializing in JavaScript and Python, passionate about scalable web, mobile, and backend solutions that drive real results. Here’s what I do best: - **Backend & APIs**: Python (Flask/Django), Node.js (NestJS, Express), Spring Boot for robust APIs, PostgreSQL/SQL/NoSQL, async tasks, Docker/AWS deployments. - **Web Development**: Next.js, MeteorJS, React.js for dynamic, performant apps. - **Mobile Development**: React Native for seamless cross-platform iOS/Android apps with real-time features (WebSockets). - **Full-Stack Skills**: RESTful APIs, auth systems, CI/CD, real-time data (Socket.IO). I deliver clean, tested code on time, communicate clearly in English, and excel in remote teams. Let’s build your next project! LinkedIn: linkedin.com/in/gregorio-morales-pajaro GitHub: github.com/Fierdimo less -
Hire appdesigner487
Hi, I'm Muhammad Hassan Full-Stack Developer | AI Engineer | Web & Mobile Apps ✅ 8+ years of experience building scalable web applications, mobile apps, and AI-powered solutions ✅ Specialized in React.js, Next.js, Node.js, Express.js, Python, React Native, Flutter, and PostgreSQL ✅ Strong expertise in AI automation,...Hi, I'm Muhammad Hassan Full-Stack Developer | AI Engineer | Web & Mobile Apps ✅ 8+ years of experience building scalable web applications, mobile apps, and AI-powered solutions ✅ Specialized in React.js, Next.js, Node.js, Express.js, Python, React Native, Flutter, and PostgreSQL ✅ Strong expertise in AI automation, LLM integrations, workflow automation, and REST APIs ✅ Modern, responsive UI development with Tailwind CSS, Material UI, Ant Design, and Bootstrap ✅ Experience integrating OpenAI, Gemini, Claude, Firebase, Stripe, Twilio, Make.com, and third-party APIs ✅ End-to-end development, from planning and architecture to deployment and maintenance I help startups, agencies, and businesses turn ideas into high-quality digital products. Whether you need a modern SaaS platform, an AI-powered application, a custom dashboard, or a cross-platform mobile app, I deliver clean, scalable, and maintainable solutions focused on performance and user experience. What You Get Working With Me: ✅ Clean, well-structured, and scalable code ✅ Fast communication with regular progress updates ✅ Reliable delivery and attention to detail ✅ Performance optimization and security best practices ✅ Long-term support after project completion I also have experience with cloud deployment, database design, backend architecture, API development, and AI integrations, ensuring your product is reliable, secure, and ready to scale. Let's build something amazing together! Whether you're launching an MVP, scaling an existing product, or integrating AI into your business, I'm ready to help bring your vision to life. Feel free to message me anytime; I look forward to discussing your project! Skills & Keywords: Full Stack Developer, Web Developer, React.js Developer, Vue.js Developer, Angular Developer, Node.js Developer, Express.js, PHP Developer, Laravel Developer, Django Developer, MySQL, PostgreSQL, MongoDB, API Integration, SaaS Platforms, Responsive Web Design, UI/UX Design, Figma, React Native Developer, Flutter Developer, Android App Development, iOS App Development, Kotlin, Java, Mobile App Developer, AI Developer, Machine Learning, NLP, OpenAI GPT, Chatbot Development, AI Automation, Azure Cognitive Services, WordPress Development, WooCommerce, Shopify Developer, E-commerce Websites, Stripe Integration, PayPal Integration, Square Integration, Admin Panels, Dashboards, Reporting Tools, HIPAA Compliance, GDPR Compliance, Blockchain, Web3, IoT Smart Home Systems, EdTech Solutions, POS Systems less -
Hire milankoladiya001
milankoladiya001 milankoladiya001
$12 USD / hour
AI Product Engineer | Lovable Cursor Replit DevIndiaI’m 𝗠𝗶𝗹𝗮𝗻 𝗞𝗼𝗮𝗹𝗱𝗶𝗮𝘆, a 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 with a strong track record of delivering scalable, high-performing web and mobile applications for startups and enterprises. I focus on turning ideas into reliable digital products with clean architecture, strong performance, and timely delivery. Over time, I have...I’m 𝗠𝗶𝗹𝗮𝗻 𝗞𝗼𝗮𝗹𝗱𝗶𝗮𝘆, a 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 with a strong track record of delivering scalable, high-performing web and mobile applications for startups and enterprises. I focus on turning ideas into reliable digital products with clean architecture, strong performance, and timely delivery. Over time, I have successfully contributed to 79+ projects, maintaining 100% on-time and on-budget delivery. I understand that choosing the right developer is not just about coding, it’s about clear communication, understanding the vision, and delivering results without friction. I specialize in building secure and scalable applications, including AI-powered solutions, modern web platforms, and mobile apps. Whether you're launching a new product or improving an existing one, I can help you move forward efficiently. 🧠 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: 🤖 𝗔𝗜 𝗧𝗼𝗼𝗹𝘀: - Cursor, Replit, Codex, Google AI Studio, Windsurf, Copilot(Github), Locofy, Codia, ChatGPT as per client requirement 🎨 𝗨𝗜/𝗨𝗫 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: - HTML5, CSS3, SASS/LESS, TailwindCSS, Material UI, Ant Design, Vuetify, React-Bootstrap, BlueprintJS ⚛️ 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 & 𝗠𝗼𝗯𝗶𝗹𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: - ReactJS, Next.js (SSR), Vue.js, Nuxt.js, Angular - React Native, Flutter, Ionic Framework, Android & iOS - State Management: Redux, MobX, Thunk, Saga 🛠 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: - Node.js, Express.js, NestJS, MVC architecture - GraphQL, REST APIs, gRPC/tRPC, WebSockets (Socket.io) 🗃 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: - MongoDB, PostgreSQL, MySQL, Firebase, DynamoDB (SQL & NoSQL) ☁️ 𝗖𝗹𝗼𝘂𝗱 & 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀: - AWS, GCP, Firebase Functions, Hasura, Heroku, Netlify, Vercel, Cloudflare 🔧 𝗧𝗼𝗼𝗹𝘀 & 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄: - Git, GitHub, GitLab, Bitbucket - Project Management: Jira, Trello, Asana ⭐ 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 ✅ Clear and honest communication ✅ Fast delivery with high-quality code ✅ Flexible engagement (project-based or ongoing support) ✅ Long-term collaboration mindset If you're looking for a reliable developer who can deliver more than just code and truly support your product journey, let’s connect. I’d be happy to discuss your project and help bring your ideas to life. 📩 Let’s build something great together. less
