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Top Rated Full-Stack Developer specializing in Next.js, Supabase, and AI-powered web applications. I build products that are fast, scalable, and ready to grow with your business. Over the past several years, I've helped startups and growing businesses turn complex ideas into polished, production-ready apps — using modern tools like Next.js, Supabase, PostgreSQL, and AI automation that actually make a difference to your bottom line. Whether you need a customer-facing SaaS platform, an internal dashboard, or an intelligent workflow built on GPT or Claude, I know how to get it shipped cleanly and on time. Here's what working with me looks like in practice: You get a codebase that won't fight you later. I build with TypeScript and clean architecture patterns so your team can maintain and extend the app without needing a full rewrite six months down the line. You get real-time features without the complexity headache. Supabase is one of my core tools — I use it to handle authentication, row-level security, and live data so you're not stitching together five different services. You get AI that's actually integrated, not bolted on. I've connected GPT-4, Claude, and custom ML models into full-stack apps — from document processing pipelines to smart search, recommendation engines, and automated workflows that save teams hours every week. You get a developer who communicates. No ghosting, no vague updates. I write clear documentation, send regular progress notes, and flag issues early rather than late. What I work with: → Frontend: Next.js (App Router), React, Tailwind CSS, TypeScript → Backend: Node.js, Express, REST & tRPC APIs, MERN Stack → Database: PostgreSQL, Supabase, MongoDB, Prisma ORM → AI & Automation: OpenAI, Anthropic Claude, LangChain, n8n, Zapier integrations → DevOps: Vercel, Railway, Docker, CI/CD pipelines Whether you're launching your first product or scaling an existing one, I bring the same level of care and precision to every project. As a Top Rated freelancer, my clients know they're getting someone who shows up, delivers, and treats their budget like it matters. Ready to build something great? Click "Hire Now" or send me a message — I typically respond within a few hours and am happy to jump on a quick call to talk through your project.

✅ 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞? ✔️ Top Rated on Upwork ✔️ 7+ Years of Professional Experience ✔️ 39+ Clients Worldwide ✔️ Clean, Scalable & Maintainable Code ✔️ Clear Communication & Reliable Delivery ✔️ Free Initial Consultation Hi, I'm Bhumi! I help startups and growing businesses build, scale, and improve modern web applications using React, Next.js, Node.js, and AI-powered development workflows. With 7+ years of experience, I have helped businesses launch new products, improve existing platforms, build SaaS applications, and deliver reliable features that support long-term growth. I focus on building fast, scalable, and maintainable solutions with clean architecture, thoughtful development, and clear communication. 𝐖𝐡𝐞𝐭𝐡𝐞𝐫 𝐲𝐨𝐮 𝐧𝐞𝐞𝐝 𝐚𝐧 𝐌𝐕𝐏 𝐛𝐮𝐢𝐥𝐭, new features added, an existing system improved, or ongoing development support, I can help move your product forward. 𝐖𝐡𝐚𝐭 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 𝐘𝐨𝐮 𝐖𝐢𝐭𝐡 ✅ Full-Stack Web Application Development ✅ SaaS Product Development & Scaling ✅ MVP Development for Startups ✅ React & Next.js Applications ✅ Node.js & NestJS Backend Development ✅ AI Features, AI Chatbots & Automation ✅ API Development & Third-Party Integrations ✅ Database Design & Optimization ✅ Performance Improvements ✅ Bug Fixes & Code Refactoring ✅ Existing Product Maintenance & Feature Development 💬 𝐖𝐡𝐚𝐭 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐒𝐚𝐲 ★★★★★ 5.0 "Bhumi is one of the best developers I've had the privilege to work with. She is very professional and has excellent communication skills. She works very fast and is very efficient with the hours that she puts in. Her work is excellent, code is clean, and she gets the job done. I have zero complaints. If the task is within her skill set, hands down she is the best." - Roger R. ★★★★★ 5.0 "Bhumi was an absolute pleasure to work with and a true asset to the project. Her work speed is exceptional, communication was excellent, and she consistently delivered high-quality work. She handled feedback professionally and was incredibly easy to collaborate with." - Ruben. ★★★★★ 5.0 "We are happy with Bhumi's work! All deliverables were of high quality, including solutions for complex tasks. She is responsible, understands priorities, communicates well, and consistently delivers excellent results." - Andrey O. ==> Feel free to review more feedbacks on my profile... 🛠️ 𝐌𝐲 𝐌𝐨𝐝𝐞𝐫𝐧 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 React • Next.js • TypeScript • Tailwind CSS • Shadcn/ui • Zustand 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 Node.js • NestJS • Express • PostgreSQL • Supabase • Redis 𝐀𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 OpenAI • Claude code • Cursor • Vercel AI SDK 𝐀𝐏𝐈𝐬 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 REST APIs • GraphQL • WebSockets • Stripe • Clerk • Auth.js • Firebase 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬 AWS • Vercel • Docker • GitHub Actions • CI/CD 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 Playwright • Jest 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 Git • GitHub • Linear • Jira • Slack • Teams 🤝 𝐋𝐞𝐭'𝐬 𝐁𝐮𝐢𝐥𝐝 𝐒𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐆𝐫𝐞𝐚𝐭 I offer a Free initial consultation to understand your goals, review your current setup, and suggest the best technical approach for your project. Whether you're starting a new product or improving an existing application, I’d love to help you build something that is scalable, reliable, and ready for growth. Regards, Bhumi

Craft Captivating Experiences with Kazi Shariful Islam, a Masterful Front-End Developer I bring web applications to life with the dynamic power of React and Next.js. Imagine captivating, user-friendly interfaces that not only engage your audience but also drive results. That's the magic I deliver as a passionate front-end developer. Here are the Frontend Frameworks & CSS Libraries that I excel in: ➔ React JS ➔ Next JS ➔ Static HTML/CSS/JS ➔ HTML5, CSS3, JavaScript (ES6+) ➔ Bootstrap / React Bootstrap ➔ Tailwind CSS ➔ Material UI ➔ Ant Design ➔ Radix UI ➔ PSD to HTML ➔ Figma to React/NextJS ➔ Redux, Context API ➔ Git, GitHub, Gitlab ➔ TypeScript ➔ React Table Why Choose Me as Your Front-End Developer? Experience unparalleled expertise in front-end development. Here's why ◼ React and Next.js: Crafting dynamic, performant web applications effortlessly. ◼ UI Libraries: Leveraging Material UI, Ant Design, Radix UI, and Bootstrap for accelerated development and consistent design. ◼ Modern Toolchain: Utilizing TypeScript for enhanced code maintainability and type safety. ◼ UI/UX Design Principles: Implementing intuitive and visually stunning experiences. ◼ Styling: Mastering responsive CSS/CSS3, SASS/SCSS, Styled Components, CSS Modules, and CSS-in-JS. ◼ State Management: Proficient in Redux, Redux Toolkit, RTK Query, Zustand, and Context API for seamless data handling. ◼ Deployment and Optimization: Ensuring smooth deployment and lightning-fast performance across all devices. ◼ Version Control: Expertise in Git, GitHub, and Gitlab for efficient collaboration. I'm not just about code; I'm a collaborative partner dedicated to understanding your vision and exceeding your expectations. Ready to transform your online presence? Let's create something extraordinary together. P.S. With a strong grasp of UI/UX design principles, I adapt to various project requirements and continuously expand my skillset to stay at the forefront of front-end development.

Full-Stack Developer building AI SaaS MVPs in Next.js, React and Node.js. From empty repo to deployed: frontend, backend, database, API integration, and AI that survives real users. Your AI feature works in the demo. Then a real user touches it and it falls over. Or the MVP that was six weeks out is now four months late. Or the API between two systems breaks every time one of them changes. Here's what usually goes wrong. Most developers can wire up an OpenAI call. Far fewer build the backend that survives one: retries when the API times out, caching so you're not paying twice for the same answer, a schema that doesn't need rewriting the moment you add a second feature. That gap is where MVPs die, and it's the part I actually care about. WHAT I BUILD AS A FULL-STACK DEVELOPER "WE NEED AN MVP IN WEEKS, NOT MONTHS." Next.js App Router, React, Node.js, Supabase with Row-Level Security, auth with roles, multi-tenant ready. I've shipped this stack enough times that the boring 60% goes fast, which leaves real time for the part that's actually yours. Full stack means full stack here: frontend, backend, database, deploy. You get a working product at every milestone, not a big reveal at the end. "THESE TWO SYSTEMS DON'T TALK TO EACH OTHER." — API INTEGRATION API integration is most of real product work. Stripe billing, third-party REST APIs, webhooks, OAuth, and the error handling nobody writes until it breaks in production. I've built payment integration, marketplace deployment and custom API layers on live client products, in React and Node.js. "OUR CHATBOT MAKES THINGS UP." Generic LLM output isn't a prompt problem, it's a retrieval problem. I build RAG systems that answer from your documents, your data, using vector search on Supabase pgvector so every response is grounded in something real. Built exactly this for a coaching platform: GPT-4 answering from the client's proprietary framework instead of guessing, with citations back to the source. "OUR BACKEND IS SLOW AND WE DON'T KNOW WHY." Usually queries, sometimes caching, occasionally architecture. I cut backend latency 60% through PostgreSQL query optimization and Redis caching across Node.js services. If your Next.js app is slow, I'll find out why before I start rewriting things. HOW I WORK Scope before I build, so you know what's in version one and what waits. Working product at every milestone, not a reveal at the end. I write the code myself. No team behind me, no mystery contractor. You get the keys: README, deploy pipeline, env setup. Nothing you can't hand off. Replies inside four hours. Addis Ababa, GMT+3: full overlap with Europe, afternoons with US East Coast. THE STACK Frontend: Next.js (App Router, Server Components), React, TypeScript, Tailwind CSS Backend: Node.js, Express, REST APIs, Python Database: PostgreSQL, Supabase, Redis, MongoDB AI: OpenAI, Claude, Gemini, RAG, embeddings, pgvector Payments and auth: Stripe, JWT, OAuth, RBAC Infra: Docker, AWS, Vercel, CI/CD Top Rated, 100% Job Success, every contract closed clean. TESTIMONIALS "Zekariyas is a talented Full Stack Developer. He handled both frontend and backend tasks with great proficiency and delivered a robust solution. He writes clean code and is very knowledgeable about modern web technologies. I was impressed by his problem-solving skills and ability to deliver on time. Highly recommended" "I engaged Zekariyas as a Fullstack developer to help build, deploy, and customize a marketplace application using Next.js and Vercel. He performed exceptionally well — always responsive, quick to solve problems, productive, and highly reliable. His expertise significantly contributed to the success of the project. I would gladly hire him again at the next opportunity." So: building an AI SaaS MVP in Next.js, adding an API integration to a React app you already have, or fixing a Next.js and Node.js build that isn't holding up? Tell me what's going on. I'll tell you straight how I'd approach it and roughly what it takes. If I'm not the right person, I'll say that too. Full-Stack Developer · Next.js Developer · React Developer · Node.js Developer · Full-Stack Development · Next.js Development · React.js · Express · TypeScript · API Integration · API Development · REST API · Third-Party API · Webhooks · Supabase · PostgreSQL · Stripe Integration · SaaS Development · MVP Development · Startup MVP · AI SaaS · AI App Development · OpenAI API · RAG · Vector Search · pgvector · Multi-Tenant SaaS · Server Components · Row-Level Security [Updated: August 16]

As a Backend Engineer with 3+ years of experience, I specialize in building scalable, secure, and high-performance applications using Java Spring Boot and Node.js. Recently, I’ve been part of a major project for the Egyptian government, developing a Correspondence Management System with advanced AI features for document processing and natural language database queries. Why Choose Me? - Robust APIs & Microservices – I build RESTful APIs and event-driven microservices with Spring Boot, Express.js, Kafka, and Redis. - Optimized Databases – I design and tune schemas in PostgreSQL, MySQL, MongoDB, and Elasticsearch for maximum efficiency. - AI-Powered Features – Integrated OCR (OCRmyPDF, Tesseract) and Chatbot with Text-to-SQL, making document handling and database access smarter and faster. - Real-Time Systems – Deliver chat, notifications, and live updates using Kafka, WebSockets, and Redis. - Cloud & Deployment – Deploy secure, containerized applications with Docker, Nginx, and platforms like AWS and DigitalOcean. - Secure Authentication – Implement JWT, Keycloak, and Spring Security for robust authentication and authorization. Key Highlights - Government Correspondence Management System (Spring Boot + AI): Integrated OCR and chatbot features for automated document processing and text-to-SQL database querying. - Social Network Platform (Spring Boot, Kafka, PostgreSQL): Posts, comments, likes, and multimedia sharing. - Search Engine (Spring Boot, Kafka, Elasticsearch): Fuzzy search and suggestion system. - Real-Time Chat App (MERN + Socketio): Private and group messaging with instant notifications. - Multi-Author Blog (MERN): Role-based publishing and content management. Services I Offer - Backend API Development (Spring Boot, Nodejs, Expressjs) - AI Integration (OCR, Chatbots, Text-to-SQL) - Microservices Architecture & Deployment (Docker, Kubernetes) - Database Design & Optimization (SQL & NoSQL) - Real-Time Communication Systems (Kafka, WebSockets, Redis) - Secure Authentication & Authorization (JWT, Keycloak, Spring Security) - Cloud Deployment (AWS, DigitalOcean, Docker, Nginx) Why Clients Trust Me - I deliver clean, tested, and production-ready solutions. - I apply OOP, SOLID principles, and software architecture best practices. - I communicate clearly, meet deadlines, and focus on results that matter. Let’s Collaborate! Whether you need to launch an MVP, scale a backend system, or integrate AI-powered features into your product, I can help you design backend solutions that are reliable, secure, and ready for growth.

🕒 3+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐩𝐫𝐨𝐟𝐞𝐬𝐬𝐢𝐨𝐧𝐚𝐥 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 🕒 807+ hours on Upworks ✅ 27+ projects delivered (Websites, Backend Servers) 🔥 Skilled in scalable, secure, and high performing applications Hi there! I'm a Senior Full Stack developer, expert on Upwork, with a proven track record of delivering high impact solutions for companies. I specialize in building custom Websites based on (MVPs, SaaS, Web3). I work as a hands on technology partner, supporting every stage of the development lifecycle from concept and design to deployment and long-term maintenance. 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Full-Stack Development | WebDevelopment | Web Application | SaaS Development | MVP | Database Architecture | API Development | AWS | Whatsapp Bot | Telegram Bot 𝗧𝗲𝗰𝗵-𝘀𝘁𝗮𝗰𝗸: ⁃ Front-End Development: React.js, NextJs , JavaScript, TypeScript, Tailwind CSS, HTML ⁃ Back-End Development: Python, Node.js, Express.js, NestJS ⁃ Database Management: MongoDB, MY SQL, MS SQL, DynamoDB ⁃ API Integration: RESTful APIs, REST, OpenAPI, WebSockets, Microservice ⁃ AI Integration: Open AI, Gemini , Claude ⁃ AWS Tools: EC2, S3, Sqs, Cloud Watch, DynamoDB. Lambda ⁃ Version Control: GitHub 𝗚𝗲𝘁 𝗮 𝗙𝗿𝗲𝗲 𝗪𝗲𝗯𝘀𝗶𝘁𝗲 𝗖𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 + 𝗟𝗼𝗼𝗺 𝗩𝗶𝗱𝗲𝗼 𝗕𝗿𝗲𝗮𝗸𝗱𝗼𝘄𝗻 (𝘄𝗶𝘁𝗵𝗶𝗻 𝟰𝟴 𝗵𝗼𝘂𝗿𝘀)! 𝗟𝗲𝘁’𝘀 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝘆𝗼𝘂𝗿 𝗶𝗱𝗲𝗮 𝗮𝗻𝗱 𝘁𝘂𝗿𝗻 𝗶𝘁 𝗶𝗻𝘁𝗼 𝗮 𝗽𝗲𝗿𝗳𝗲𝗰𝘁 𝗹𝗶𝘃𝗲 𝘄𝗲𝗯𝘀𝗶𝘁𝗲!