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Mohan R.
$9/hr
100% Job Success
$60K+ earned
Available now
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Hi, I’m Mohan, a Full Stack Developer with 10+ years of experience building scalable web platforms, mobile apps, SaaS products, AI powered systems, and eCommerce solutions. I help startups, agencies, and businesses turn ideas into high performance digital products with clean UI, strong backend architecture, and scalable deployment. What I Can Build ✅ Web Applications React.js, Next.js, Vue.js, Angular.js, Node.js, Express.js, Django, Laravel ✅ Mobile Applications React Native, Flutter, Swift, Kotlin for Android & iOS apps ✅ eCommerce Development Shopify, WooCommerce, WordPress, Magento, Wix, Framer, custom stores ✅ UI/UX Design Figma, Adobe XD, wireframes, prototypes, responsive UI systems ✅ Backend & APIs REST APIs, GraphQL, Firebase, Supabase, MongoDB, PostgreSQL, MySQL ✅ AI & Automation AI Agents, OpenAI integrations, LLM apps, chatbot systems, workflow automation ✅ Cloud & DevOps AWS, Docker, CI/CD, Vercel, DigitalOcean, GitHub, deployment optimization Industries I’ve Worked With • ECommerce • Healthcare & Telemedicine • Food Delivery • Education & LMS • Travel & Booking Platforms • Real Estate • FinTech • SaaS Platforms Why Clients Work With Me ✅ End to end development support ✅ Fast communication and regular updates ✅ Clean, scalable, maintainable code ✅ Mobile responsive and SEO friendly development ✅ Long term support and maintenance ✅ Focus on performance, UX, and business growth I can help with: • SaaS platforms • Booking systems • Marketplace apps • AI powered applications • Shopify stores • Mobile apps • Admin dashboards • CRM systems • API integrations • MVP development Tech Stack: Frontend: React.js, Next.js, Vue.js, Angular, HTML5, CSS3, Tailwind CSS, Bootstrap Backend: Node.js, Express.js, Django, Laravel, FastAPI Mobile: React Native, Flutter, Swift, Kotlin Database: MongoDB, PostgreSQL, MySQL, Firebase Tools: Git, Docker, Figma, Postman, Jira, CI/CD Let’s build something valuable together. Send me a message and let’s discuss your project.
Mohan R. has worked .
Omer H.
$12/hr
100% Job Success
$10K+ earned
Available now
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Hello! 👋 I'm Omer, a passionate Full Stack Developer specializing in the MERN stack (MongoDB, Express.js, React.js, Node.js) with over 5 years of professional experience. I build high-performing SaaS platforms, integrate cutting-edge AI tools like Claude, and develop scalable solutions using platforms like Cursor and Replit to accelerate development workflows and collaboration. ✅ My Expertise Full-Stack Web Development ✔ MERN Stack (MongoDB, Express.js, React.js, Node.js) ✔ TypeScript, Next.js, JavaScript ✔ Scalable SaaS Architecture AI Integration & Tools ✔ Claude AI, OpenAI APIs ✔ Automation with Cursor ✔ Developer Tools & AI Agents Frontend Development ✔ React.js, Tailwind CSS, Material UI, Bootstrap ✔ Responsive UI & UX Design ✔ High-Performance Web Interfaces Backend Development ✔ Node.js, Express.js ✔ RESTful APIs & MongoDB Integrations ✔ Authentication, Security & Role-Based Access Cloud & Database Management ✔ MongoDB, Firebase, Firestore ✔ Mongoose ORM ✔ Replit for rapid prototyping & testing Custom Web Solutions ✔ SaaS Dashboards & Business Apps ✔ AI-Enhanced E-commerce Solutions ✔ Wireframes, Prototypes & MVPs Why Choose Me? ✔ Deep Integration with Modern Tools like Cursor & Replit ✔ Strong AI/ML Awareness (Claude, OpenAI) ✔ Clean, Scalable & Well-Documented Code ✔ Reliable Communication & Timely Delivery ✔ UX-Driven, Client-Centric Approach ✔ Continuous Support After Delivery 💡 Let's build your next SaaS or AI-powered web app together! Reach out to bring your vision to life. 🚀
Saad A.
$20/hr
100% Job Success
$10K+ earned
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I help businesses build scalable web applications, automate repetitive workflows, and extract valuable data from websites using Python and modern web technologies. 🏆 Built a scraping pipeline that extracted 50K+ personal injury attorney records for a client 🏆 Automated multiple reporting workflow that saved a client 40+ hours of manual work every week 🏆 Delivered a Flask + React SaaS dashboard used by 1000+ active users Over the last 4+ years, I have developed custom web applications, APIs, scraping systems, and automation solutions that save time, reduce manual effort, and improve business efficiency. 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗪𝗶𝘁𝗵 ✔ Building large-scale, production-ready Web applications ✔ Creating high-converting, modern, and visually appealing Websites ✔ Eliminating repetitive manual tasks through automation ✔ Any kind of Web automation, desktop automation, web scraping & data extraction ✔ REST API development & third-party integrations ✔ Data processing pipelines & workflow automation ✔ Dashboard & Admin Panel Development ✔ Bug Fixing & Performance Optimization ✔ Deployment & Cloud Hosting My expertise spans Python, Django, Flask, FastAPI, React, Selenium, Scrapy, Playwright, and other modern technologies. Rather than relying on a one-size-fits-all approach, I focus on understanding the problem first and selecting the most effective tools and architecture to deliver reliable, maintainable, and scalable solutions. From data extraction pipelines and browser automation to full-stack web applications and API integrations, I build solutions that help businesses streamline operations, make better decisions, and scale with confidence. My focus is always on delivering high-quality solutions that provide real value and contribute to the success of each project. 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 I design and build complete, production-ready web applications from the ground up. On the backend, I develop RESTful APIs using Django, FastAPI, and Flask, with secure authentication, role-based access control, and optimized database architectures across PostgreSQL, MySQL, MongoDB, Redis, and Elasticsearch. On the frontend, I create responsive, user-friendly interfaces using React, Next.js, Tailwind CSS, and Bootstrap. Applications are containerized with Docker and deployed to cloud infrastructure, ensuring consistency across environments and reliability in production. 𝗪𝗲𝗯 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴 & 𝗗𝗮𝘁𝗮 𝗘𝘅𝘁𝗿𝗮𝗰𝘁𝗶𝗼𝗻 I build automated scraping systems that collect, clean, and process large volumes of data from job boards, e-commerce platforms, business directories, and other dynamic websites. My solutions leverage Selenium, Playwright, and Scrapy to handle JavaScript-heavy pages, anti-bot measures, pagination, authentication, and complex multi-step workflows, delivering reliable extraction at scale. I also design end-to-end data pipelines that transform raw web data into structured datasets, databases, CSV files, APIs, and business intelligence workflows. 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄 & 𝗣𝗿𝗼𝗰𝗲𝘀𝘀 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 I automate repetitive business processes through custom Python-based solutions, significantly reducing manual effort and improving operational efficiency. This includes workflow automation systems that integrate multiple platforms, APIs, databases, and third-party services, as well as browser automation capable of handling form submissions, account management, report generation, data synchronization, and other time-consuming tasks. 𝗪𝗵𝘆 𝗛𝗶𝗿𝗲 𝗠𝗲 What sets me apart is my ability to understand both the technical and business sides of a project. I don't just write code, I focus on building solutions that save time, reduce operational costs, automate repetitive work, and create measurable value for clients. Whether you need a custom web application, a complex scraping system, an automation workflow, or a scalable backend API, I can help transform your requirement If you're looking for a developer who can take ownership of a project, communicate clearly, and deliver reliable solutions, I'd be happy to discuss your requirements and explore how I can help.
Saad A. has worked .
$20/hr
89% Job Success
$30K+ earned
Available now
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🕰️ 𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝐢𝐧 𝐭𝐡𝐞 𝐔𝐒, 𝐂𝐚𝐧𝐚𝐝𝐚, 𝐔𝐊, 𝐀𝐮𝐬𝐭𝐫𝐚𝐥𝐢𝐚, 𝐨𝐫 𝐩𝐫𝐞𝐟𝐞𝐫𝐫𝐞𝐝 𝐭𝐢𝐦𝐞 𝐳𝐨𝐧𝐞𝐬 🏆 Top-Rated Plus (𝐓𝐨𝐩 10% 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤) 🌟 7+ Years of Experience ✔ 400+ Successful Projects 🕒 2000+ Hours of Development Work ✅ Guarantee of High-Quality Product Delivery 📞 Availability: 40+ hours per week 𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐀𝐈-𝐝𝐫𝐢𝐯𝐞𝐧 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, 𝐛𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐜𝐥𝐨𝐮𝐝 𝐢𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞. My name is Ammar Haider, and I help startups and growing companies 𝐝𝐞𝐬𝐢𝐠𝐧, 𝐛𝐮𝐢𝐥𝐝, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐞 𝐜𝐨𝐦𝐩𝐥𝐞𝐱 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬 — from AI-powered SaaS platforms to blockchain-enabled marketplaces and production-grade cloud systems. With 𝟕+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞, I specialize in 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐡𝐢𝐠𝐡-𝐢𝐦𝐩𝐚𝐜𝐭 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐭𝐡𝐚𝐭 𝐠𝐨 𝐛𝐞𝐲𝐨𝐧𝐝 𝐬𝐢𝐦𝐩𝐥𝐞 𝐰𝐞𝐛𝐬𝐢𝐭𝐞𝐬 — secure backends, scalable infrastructure, and intelligent applications designed for real users and real growth. Previously worked as a 𝐒𝐞𝐧𝐢𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝐚𝐭 𝐏𝐞𝐫𝐦𝐢𝐬𝐬𝐢𝐨𝐧.𝐢𝐨, where I contributed to infrastructure and production systems supporting blockchain platforms and high-traffic environments. 🎯 𝐖𝐡𝐚𝐭 𝐌𝐚𝐤𝐞𝐬 𝐌𝐲 𝐖𝐨𝐫𝐤 𝐃𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 Most developers can build features. I focus on 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐭𝐡𝐚𝐭 𝐬𝐜𝐚𝐥𝐞, 𝐩𝐞𝐫𝐟𝐨𝐫𝐦, 𝐚𝐧𝐝 𝐥𝐚𝐬𝐭. Clients hire me when they need someone who can: • Architect 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐠𝐫𝐚𝐝𝐞 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 • Build 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐚𝐧𝐝 𝐢𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐭 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 • Integrate 𝐛𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧 𝐚𝐧𝐝 𝐖𝐞𝐛𝟑 𝐢𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 • Design 𝐬𝐞𝐜𝐮𝐫𝐞 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐚𝐧𝐝 𝐀𝐏𝐈𝐬 • Deploy and scale products on 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞 𝐜𝐥𝐨𝐮𝐝 𝐢𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 I bring full product engineering capability— from architecture and development to deployment and scaling. 🤖𝐀𝐈 𝐒𝐚𝐚𝐒 & 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐭 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨 I build modern AI-powered SaaS platforms and intelligent applications that integrate machine learning and automation into real business workflows. ✅ Experience includes: • AI-driven SaaS platforms • LLM integrations (OpenAI, embeddings, RAG pipelines) • AI automation and internal productivity systems • Intelligent data processing • AI chat systems and assistants • Scalable inference APIs 𝐓𝐞𝐜𝐤 𝐬𝐭𝐚𝐜𝐤𝐬: Node.js / Python / FastAPI React / Next.js / TypeScript OpenAI / LangChain workflows PostgreSQL / Redis 🌐 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 I design and build modern, scalable web applications with clean architecture and maintainable codebases. ⚛️Frontend React.js Next.js TypeScript TailwindCSS Redux 🛠️Backend Node.js (Express / NestJS) Python (Django / FastAPI) REST APIs GraphQL APIs 🗄️Databases PostgreSQL MongoDB MySQL Redis Firebase 🧊 𝐖𝐞𝐛𝟑 / 𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 I help companies build **real blockchain products**, not just token demos. Capabilities include: • Smart contract development (Solidity / Rust) • NFT marketplaces • Token systems (ERC-20 / ERC-721) • DeFi integrations • Wallet integrations (MetaMask / WalletConnect) • On-chain / off-chain system architecture • Blockchain backend services 𖢻 Networks experience: Ethereum Polygon ♾️ 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐂𝐥𝐨𝐮𝐝 𝐈𝐧𝐟𝐫𝐚𝐬𝐭 My DevOps background allows me to **build and operate production systems properly**. ☁️ Cloud platforms AWS GCP AZURE 🧠Infrastructure expertise Docker Kubernetes Terraform CI/CD pipelines GitHub Actions GitLab CI Jenkins ✨Services: AWS EC2 AWS Lambda AWS RDS S3 CloudFront GKE Cloud Functions 🚀 𝐒𝐞𝐥𝐞𝐜𝐭𝐞𝐝 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 I have contributed to a wide range of complex platforms including: • AI-driven SaaS products • Blockchain token platforms • Real estate marketplaces • ERP and CRM systems • Multi-vendor e-commerce marketplaces • Booking platforms • Healthcare systems • HR and recruitment platforms • Learning management systems Many of these systems required high-scale backend architecture and secure production infrastructure. AI SaaS Developer, Full Stack, Node.js, React, Blockchain, Web3, Smart Contract, DevOps Full Stack Developer, MERN Stack Developer, Blockchain Developer, Smart Contract Engineer, App Developer, Web3 Developer, React Developer, Node.js Developer, API Integration, DevOps Engineer, Cloud Hosting Expert, RESTful API Developer, Developer, E-commerce Website
Ammar H. has worked .
Surmukh S.
$17.99/hr
100% Job Success
$500K+ earned
Available now
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💡 Professional Overview 🎉 Award-Winning Freelancer | 🏆 Top 3% Rated on Upwork 🌟 10+ Years of Experience | 💼 14, 600+ Hours Delivered 📞 Available 40+ Hours/Week | 🏅 100% Job Success Rate 🔝 Premium Quality & Timely Delivery | 💰 Cost-Effective Solutions Building scalable digital products, AI-powered systems, and high-performance web applications for 10+ years. I specialize in architecting and delivering production-grade full stack platforms using modern JavaScript ecosystems, cloud-native infrastructure, and machine learning integrations. My expertise spans frontend engineering, backend systems, intelligent automation, conversational AI, and scalable SaaS architectures. ⚡ Core Technical Expertise Frontend Engineering React.js, Next.js, Redux, TypeScript React Hooks, Context API, React Router Responsive UI/UX Architecture Tailwind CSS, Material UI, Bootstrap, Sass Progressive Web Apps (PWA) D3.js, Chart.js, Real-time Dashboards Backend & API Development Node.js, Express.js Python (FastAPI, Flask, Django) REST APIs, GraphQL, WebSockets OAuth2, JWT Authentication Microservices & Event-Driven Architectures API Gateway & Third-Party Integrations AI / Machine Learning / NLP OpenAI GPT Integrations Hugging Face Transformers TensorFlow, PyTorch, Scikit-Learn, Keras Conversational AI & Chatbot Systems NLP Pipelines & Text Analytics BERT, LSTM, CNN Models RAG Pipelines & AI Automation Dialogflow, Rasa, Botpress Cloud, DevOps & Infrastructure AWS, Google Cloud Platform (GCP) Docker, Kubernetes CI/CD Pipelines (GitHub Actions, Jenkins) Serverless Deployments Containerized Application Architecture Monitoring & Deployment Automation Databases & Data Engineering PostgreSQL, MongoDB, SQLite SQL / NoSQL Optimization ETL Pipelines & Data Processing Data Cleaning & Feature Engineering Real-Time Data Synchronization 🔥 Specialized Focus Areas 🚀 Full Stack SaaS Development Designing scalable SaaS products with modern frontend architectures and resilient backend systems. 🤖 AI-Powered Applications Building intelligent chatbot agents, NLP systems, recommendation engines, and AI workflow automation. ⚙ Intelligent Automation Developing automation pipelines using Python, APIs, webhooks, and cloud functions to streamline business operations. 📡 Real-Time Systems Implementing WebSocket-based live communication, notifications, analytics dashboards, and streaming applications. ☁ Cloud-Native Engineering Deploying scalable microservices and serverless applications using containerized infrastructure and DevOps best practices. 📌 Notable Project Experience ✅ AI Chatbots for customer support, lead generation, and workflow automation ✅ Enterprise SaaS platforms with AI/ML integrations ✅ ML-powered analytics and predictive data processing systems ✅ Real-time dashboards with live visualization and event streaming ✅ Multi-platform React & React Native applications ✅ API ecosystems integrating third-party services and cloud infrastructure 🛠 Tech Stack Languages JavaScript (ES6+), TypeScript, Python, SQL Frontend React.js, Next.js, Redux, React Native, Expo, HTML5, CSS3, Tailwind CSS Backend Node.js, Express.js, FastAPI, Flask, Django AI/ML TensorFlow, PyTorch, Scikit-Learn, Hugging Face, OpenAI GPT, NLP Databases MongoDB, PostgreSQL, SQLite, Firebase DevOps & Cloud Docker, Kubernetes, AWS, GCP, CI/CD, Serverless APIs & Integrations REST, GraphQL, WebSockets, OAuth2, JWT, Webhooks 🎯 What Clients Can Expect ✔ Clean, scalable, maintainable code ✔ Strong communication and agile collaboration ✔ High-performance architecture with production-ready standards ✔ Business-focused engineering solutions ✔ Long-term technical partnership and support 🚀 Let’s Build Something Intelligent Whether you need a scalable SaaS platform, AI-powered automation, real-time applications, or a full-stack engineering partner, I can help bring your product vision to life with modern technologies and robust architecture. Keywords:- JavaScript, TypeScript, React, ReactJS, NextJS, Redux, ReactNative, Expo, NodeJS, ExpressJS, Python, Django, Flask, FastAPI, RESTAPI, GraphQL, WebSockets, OAuth2, JWT, MongoDB, PostgreSQL, SQLite, Firebase, SQL, NoSQL, HTML5, CSS3, Sass, TailwindCSS, Bootstrap, MaterialUI, ResponsiveDesign, PWA, D3JS, ChartJS, AI, MachineLearning, DeepLearning, NLP, TensorFlow, PyTorch, ScikitLearn, Keras, HuggingFace, Transformers, OpenAI, GPT, ChatGPT, ConversationalAI, Chatbots, Dialogflow, Rasa, Botpress, BERT, LSTM, CNN, DataEngineering, ETL, DataPreprocessing, FeatureEngineering, DataVisualization, Automation, WebAutomation, Scripting, APIIntegration, Webhooks, Microservices, Serverless, Docker, Kubernetes, AWS, GCP, CI/CD, Jenkins, Git, GitHub, Agile, Scrum, SaaS, FullStackDevelopment, FrontendDevelopment, BackendDevelopment, CloudComputing, CloudArchitecture, DevOps, SoftwareEngineering, ApplicationDevelopment, MobileDevelopment, CrossPlatformDevelopment, EnterpriseApplications, RealTimeApplications, ScalableArchitecture.
Cerebrum Infotech
Associated with
Cerebrum Infotech
$1M+
earned
Samuel D.
$15/hr
100% Job Success
$50K+ earned
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Hi, Sam here. I am a full-stack developer with advanced and proven expertise in both frontend and backend development. My primary focus is on delivering high-quality code that incorporates business logic to resolve your problems. I specialize in several key areas of web development, including: ✅ FRONTEND: React.js, Next.js, Vue.js, VueX, Redux, Context API, Javascript, Typescript, SASS, Tailwind, DaisyUI... ✅ BACKEND: Node.js, Express.js, Python, Django, PHP, Mongo DB, PostgresSQL, Mysql DB, SQL, Graph QL, Firebase, Stripe, Puppeteer/Scraping... ✅ CLOUD: AWS, GCP, Linode, Cloud Functions, Docker, Kubernetes, Terraform, Github Actions CI/CD, Linux, Bash, Nginx, PM2... ✅ SCRAPING/AUTOMATIONS: Puppeteer/Puppeteer-extra, Playwright, Cheerio, Puppeteer Cluster, Proxy rotation setup, User agent rotation, browser fingerprint, bot session/cookies saving and reuse, big scale bot building and optimization of existing bots... ✅ CHROME EXTENSION: Manifest v3, browser APIs, permissions management, Background actions (service worker), content script, extension local storage, publish to chrome extension store... ✅ TOOLS & TESTING: VsCode, Git/Github, Jest, Mocha, Chai, Puppeteer/Testing, Strapi, Wordpress... Best quality work and timely delivery guaranteed. Thank you.
Samuel D. has worked .
$20/hr
100% Job Success
$200 earned
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⭐️ Top Rated Plus – Top 10% talent on Upwork ✅ Certified Computer Science | Cloud Architect ✅ 6+ years of experience in AI, Full Stack, and Web Development ✅ Built SaaS & AI-powered systems serving millions of API calls per day ✅ 100%+ client retention rate, long-term trusted tech partner Most clients I worked with have brought these three problems: ❌ A web app that looks good (sometimes not) but fails to scale. ❌ A SaaS product weighed down by poor architecture. ❌ AI integration that is disconnected from real business workflows, and generating more work, lol.. So, I've helped them dearly to fix those problems. For several years, I built core systems powering millions of users. Now, I help startups and enterprises build scalable web apps, multi-tenant SaaS systems, and AI-powered solutions that actually deliver ROI. On top of that I work with high-growth startups, enterprise teams, and innovative founders who want systems built the right way. Every project I take on is designed to be: ✔️ 𝐔𝐬𝐞𝐫-𝐟𝐫𝐢𝐞𝐧𝐝𝐥𝐲: clean, modern UI/UX aligned with best practices React, Next.js, Vue, TailwindCSS, Figma (clean UI/UX, responsive design) ✔️ 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞: architecture ready for thousands of users Microservices, Docker, Kubernetes, AWS/GCP/Azure (auto-scaling, high availability) ✔️ 𝐀𝐈-𝐞𝐧𝐚𝐛𝐥𝐞𝐝: automation and intelligence baked in from day one OpenAI, LangChain, Pinecone, Zapier/Make.com/n8n (chatbots, agents, automation) ✔️ 𝐒𝐞𝐜𝐮𝐫𝐞: encryption, authentication, and compliance at the core OAuth2, JWT, TLS/SSL, Key Management, GDPR/HIPAA compliance (data protection & privacy) ✅ 𝐖𝐇𝐀𝐓 𝐈 𝐁𝐑𝐈𝐍𝐆 𝐓𝐎 𝐘𝐎𝐔𝐑 𝐏𝐑𝐎𝐉𝐄𝐂𝐓 — 𝟑𝟔𝟎° 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄 - Web & Frontend Development: React, Next.js, Vue, Nuxt.js, Angular, TailwindCSS - Backend & APIs: Node.js, Express, Django, FastAPI, Laravel, REST, GraphQL, WebSockets - Databases & Storage: PostgreSQL, MySQL, MongoDB, DynamoDB, Redis, Firebase - Cloud & DevOps: AWS, Google Cloud, Azure, Docker, Kubernetes, Terraform, CI/CD - SaaS Engineering: Multi-tenant architecture, subscription billing, RBAC, reporting & analytics - AI Integration: OpenAI, LangChain, Pinecone, Weaviate, Hugging Face, Anthropic, AI-powered chatbots & assistants - Automation: Make.com, Zapier, n8n for AI + workflow automation across CRMs, ERPs, and business tools - IoT + AI Fusion: Sensor data + AI for predictive analytics, BLE, MQTT, ZigBee integrations - Security & Compliance: OAuth2, SSO, JWT, encryption, GDPR/HIPAA-ready ✅ 𝐌𝐎𝐑𝐄 𝐕𝐀𝐋𝐔𝐄 𝐅𝐎𝐑 𝐘𝐎𝐔𝐑 𝐏𝐑𝐎𝐉𝐄𝐂𝐓: • Built SaaS platforms serving millions of API calls daily • Integrated AI assistants into CRMs & support systems, cutting manual workload by 𝟔𝟎% • Designed multi-tenant SaaS architectures with billing, reporting, and analytics • Automated end-to-end business workflows saving teams 100+ hours weekly • Deployed IoT + AI systems in healthcare, energy, fitness, sports, and smart monitoring ✅ 𝐓𝐎𝐎𝐋𝐒 𝐀𝐍𝐃 𝐏𝐋𝐀𝐓𝐅𝐎𝐑𝐌𝐒: React · Next.js · Node.js · Django · FastAPI · Laravel · AWS · GCP · Azure · PostgreSQL · MongoDB · DynamoDB · Redis · Docker · Kubernetes · Terraform · Zapier · Make.com · n8n · LangChain · Pinecone · OpenAI · Hugging Face 💬 𝐖𝐇𝐀𝐓 𝐌𝐘 𝐑𝐄𝐂𝐄𝐍𝐓 𝐂𝐋𝐈𝐄𝐍𝐓 𝐒𝐀𝐈𝐃: It was a very, very good experience. I got way more than what I actually paid for. They provided a lot of value and a lot of insight, which helped me get this project completed really, really well. I would highly recommend them to anyone who is looking to get any sort of software development services. So, let us connect then. if you want a partner who can build web apps, SaaS platforms, and AI-integrated systems that scale and succeed.
Arohi P. has worked .
Adam R.
$25/hr
100% Job Success
$10K+ earned
Available now
Offers consultations
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Hi, I'm Adam 👋 Tell me your idea, plan, or prototype and I will transform it into a scalable, production-ready SaaS ( Full-Stack app ) . That is my promise. If you send me an invitation or a message, I’ll provide a technical audit or a personalized breakdown of how we can take your project from "concept" to "launch" in record time. A little more about me: I help founders and growth-focused businesses scale fast by engineering high-performance web and mobile applications. With over 5 years of experience, I don't just write "clean code." I build resilient AI-powered ecosystems designed to handle thousands of users and complex business logic. Whether you are looking to build a marketplace from scratch, a fintech dashboard, or an AI agent architecture, I turn technical chaos into streamlined, data-driven platforms. Big Tech Pedigree: 5+ years of experience Rapid MVP Specialist: I specialize in "from-scratch" builds and lightning-fast delivery. Prototype to Production: Expert at transforming static UI (lovable.dev, Figma) into fully functional apps. 100% Full-Cycle Ownership: From architecting the "brain" (Backend) to pixel-perfect UI (Mapbox & React). AI Integrated: Custom LLM implementations and AI Agent architectures that go beyond simple chatbots. 🔧 TECH STACK & EXPERTISE Core Development: Frontend: React.js, Next.js (App Router), Angular, TypeScript, JavaScript, HTML/CSS. Backend: Node.js, Python, PHP, NestJS, API Development (REST/GraphQL). Mobile: React Native (iOS & Android). Database & Infrastructure: Databases: MongoDB, PostgreSQL, MySQL, Supabase, Firebase / Firestore, DynamoDB. DevOps: Git workflows, CI/CD pipelines, SSR, PWA, Performance Optimization. Specialized Solutions: SaaS Platforms: Multi-tenant architectures, Admin Panels, Marketplaces, Internal Tools. Fintech & E-commerce: Secure Stripe gateways, high-traffic stores, and booking systems. Geospatial: Pixel-perfect Mapbox architectural styling and data visualization. AI Automation: OpenAI API integrations, AI Agents, and Workflow Automation. 🎯 WHY CLIENTS HIRE ME Commercial Focus: I build for business outcomes, ensuring your tech stack supports your ROI. Design System Implementation: I use component libraries and custom design systems to ensure a premium user experience. Clean Architecture: Expert in SQL/NoSQL optimization and scalable middleware transformation layers. Constant Communication: You’ll never be in the dark; I provide regular updates and full transparency via GitHub. Stop fighting with unreliable freelancers. If you need a Senior Full Stack Developer to rescue a project or a SaaS Architect to build your next big idea, let’s build something that scales. Keywords: React, React Native, Software Architecture & Design, Laravel, Python, Full-Stack Development, API Development, JavaScript, PHP, Web Application Development, Node.js, AWS Development, MySQL, Mobile App Development, Django, WordPress, HTML5, Tailwind CSS, Web Design, API Integration, React, Next.js, TypeScript, Node.js, NestJS, Python, FastAPI, Django · OpenAI, Anthropic Claude, Google Gemini, LangChain, RAG, pgvector, Pinecone, AI agents · PostgreSQL, MongoDB, Redis, Prisma, Supabase, Firebase · AWS, GCP, Docker, Kubernetes, CI/CD · Stripe, HubSpot, Salesforce · HIPAA, HL7, FHIR, SEC Reg CF, multi-tenant SaaS, MVP development, fractional CTO
Adam R. has worked .
Alexander Z.
$40/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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🏆 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 | 💯 𝟭𝟬𝟬% 𝗝𝗦𝗦 | 💵 $𝟭𝟬𝟬𝗞+ 𝗘𝗮𝗿𝗻𝗲𝗱 | ⏱️ 𝟰,𝟳𝟬𝟬+ 𝗛𝗼𝘂𝗿𝘀 | 🧑‍💻 𝟭𝟲+ 𝗬𝗲𝗮𝗿𝘀 𝗶𝗻 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 ⚛️ React Developer • Full Stack Developer • AI Developer 🔥 𝗖𝗹𝗲𝗮𝗻 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲, 𝗳𝗲𝘄𝗲𝗿 𝗿𝗲𝗯𝘂𝗶𝗹𝗱𝘀, 𝗳𝗮𝘀𝘁𝗲𝗿 𝗹𝗮𝘂𝗻𝗰𝗵 I help startups build web, mobile, and AI products that are easier to launch, scale, and maintain — so you don't pay to fix the same things twice. 📊 𝗥𝗲𝘀𝘂𝗹𝘁𝘀 𝗳𝗿𝗼𝗺 𝘁𝗵𝗮𝘁 𝗮𝗽𝗽𝗿𝗼𝗮𝗰𝗵 🚀 12M+ users in social mobile products ⭐ 1M+ users & 4.8 App Store rating in AI mental health apps 🏦 Secure software trusted by Bank of America and Citibank 🤖 AI platforms, automation, dashboards & smart workflows for real products 🧩 𝗪𝗵𝗮𝘁 𝗜 𝘄𝗼𝗿𝗸 𝗮𝗰𝗿𝗼𝘀𝘀 I lead builds end to end as a full stack developer, web developer, React developer, react native developer, mobile app developer, Python developer, AI Developer, and WordPress developer — React, full stack development, mobile apps, Python and FastAPI backends, Firebase, machine learning, and AI features. 16+ years in production, with a team behind me. The rule is simple: build it properly from the start, so your next developer doesn't have to rewrite it later. 🔥 𝗪𝗵𝗮𝘁 𝗜 𝗵𝗲𝗹𝗽 𝘄𝗶𝘁𝗵 ⚛️ 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 & 𝘄𝗲𝗯 — As a React developer and web developer, my team and I build SaaS platforms, dashboards, admin panels, marketplaces, and web apps that are clean, fast, and easy to extend. A good React developer and web developer cares about more than screens: performance, reusable components, API logic, and long-term maintainability. 🧱 𝗙𝘂𝗹𝗹 𝘀𝘁𝗮𝗰𝗸 — As the full stack developer owning the architecture, I connect frontend, backend, mobile, Firebase, FastAPI, and AI logic into one stable system — no endless handoffs, no expensive rebuilds. Whether you need a web developer, a React developer, a mobile app developer, or a full stack developer, you get one owner instead of five. 🤖 𝗔𝗜 — On the AI Developer side, we build AI that's useful inside the product: assistants, LLM workflows, recommendations, automation, and AI dashboards. With strong machine learning, data scientist, and python developer experience, we wire in real data work: a data scientist explores it, a Python developer turns it into services, and an AI Developer ships it — so machine learning features are useful, not just clever in a demo. 🐍 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 & 𝗣𝘆𝘁𝗵𝗼𝗻 — As a Python developer with deep FastAPI experience, I build APIs, integrations, automation, machine learning workflows, and backends that handle real users. If your backend feels fragile, I step in as a Python developer and full stack developer to clean it up — readable, tested, easy for the next data scientist or web developer to support. 📱 𝗠𝗼𝗯𝗶𝗹𝗲 — As a react native developer and mobile app developer, I build iOS and Android apps that connect cleanly to backends, APIs, subscriptions, payments, and push. A strong react native developer and mobile app developer thinks about performance, release flow, and future support. Need cross-platform? A flutter developer can support Flutter or help you choose between React Native, Flutter, and native. 🌐 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀 — As a WordPress developer, I handle marketing sites, landing pages, and CMS builds beside the main product, so your React developer, full stack developer, and WordPress developer work stays one consistent product story. 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 🟣 𝗣𝗮𝗿𝗹𝗼𝗿 — social platform, 12M+ users 🟢 𝗨𝗽𝗟𝗶𝗳𝗲 — AI mental health app, 1M+ users, 4.8★ 🔵 𝗡𝗼𝘁𝗮𝘁𝗲 — secure productivity, trusted by Bank of America & Citibank 🟠 𝗙𝗶𝗹𝗹𝗿𝗿 — AI document app with smart parsing 🔴 𝗕𝗲𝗮𝘁𝗹𝘆 — SaaS connected to Netflix, Uber, Spotify & 250M+ creators 🟤 𝗛𝗲𝗮𝗿𝗠𝗲𝗢𝘂𝘁 — AI 24/7 therapy companion ⚪ 𝗘𝘅𝗮𝗺 𝗣𝗿𝗲𝗽 𝗔𝗽𝗽𝘀 — 36+ education apps with AI tutor logic 💰 𝗪𝗵𝘆 𝘁𝗵𝗶𝘀 𝘀𝗮𝘃𝗲𝘀 𝘆𝗼𝘂𝗿 𝗯𝘂𝗱𝗴𝗲𝘁 ✅ Clean React developer and web developer work = fewer frontend bugs. ✅ Thoughtful full stack developer work = frontend, backend, mobile aren't fighting each other. ✅ Reliable Python developer and FastAPI work = a backend easy to scale and monitor. ✅ Good react native developer, flutter developer, and mobile app developer work = fewer mobile fixes after release. ✅ Practical AI Developer, machine learning, and data scientist work = AI features that are useful, not trendy. 📩 If you need a React developer, web developer, full stack developer, react native developer, mobile app developer, WordPress developer, Python developer, AI Developer, machine learning engineer, or data scientist who builds cleanly from the start - send me a message. I usually respond fast.
Alexander Z. has worked .
Olearis
Associated with
Olearis
Nanda P.
$20/hr
100% Job Success
$60K+ earned
Available now
Offers consultations
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⭐️⭐️⭐️ 14+ Years of Excellence | 6000+ Projects Delivered Across 90+ Countries ⭐️⭐️⭐️ 🚀 Backed by Award-Winning Global Agency – Weavers Web Solutions Private Limited🚀 ⭐️⭐️⭐️ Full-Cycle Expertise: Mobile Apps, Web Platforms, eCommerce, AI, IoT, Blockchain ⭐️⭐️⭐️ 💯 Fast Response Time – Get Replies Within 30 Minutes 24X7 ✅ Unlimited Revisions on Design & Client Support 💻 Strong Track Record Serving Startups, SMEs & Enterprises Worldwide ⌚ Delivering On-Time, On-Budget, and Future-Ready Solutions 🚀 Partnering for Long-Term Success With Reliable Post-Launch Support What I Can Help You Build: ⭐️ Web Application Development ✅ WordPress Website Development ✅ E-Commerce website development ✅ Magento Website Development ✅ Magento Enterprise ✅ WooCommerce Website Development ✅ Shopify Website Development ✅ Shopify Plus Development ✅ BigCommerce Development ✅ WIX Development ✅ Squarespace Development ✅ MEAN Stack Development ✅ Angular Application Development ✅ Node JS Development ✅ MERN Stack Development ✅ React JS Development ✅ Laravel Application Development ✅ Python (Django) Development ⭐️ Mobile Application Development ✅ Hybrid Application Development ✅ React Native Development ✅ Flutter Development ✅ FlutterFlow Development ✅ Native Application Development ✅ Swift ✅ Java ✅ Kotlin I'm a Web and Mobile App Developer with over a decade of hands-on experience building custom digital solutions. Since 2013, I’ve successfully delivered more than 200 projects for startups, small businesses, and global teams — helping them launch, grow, and scale with clean, functional, and reliable technology. My core strengths lie in full-stack development, UI/UX implementation, API integration, and building cross-platform apps that feel native and perform seamlessly. Whether it's a fast MVP, a polished mobile product, or a complex backend architecture, I bring a calm, focused approach to solving real-world problems through code. I've worked across industries like e-commerce, healthcare, logistics, SaaS, fitness, food tech, and finance, always aiming to build user-first experiences backed by solid technical foundations. I’m comfortable working independently or as part of a team, and I value clear communication, quick iteration, and writing clean, maintainable code.
Nanda P. has worked .
Weavers Web Solutions Private Limited
Associated with
Weavers Web Solutions Private Limited
$200K+
earned