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$10/hr
100% Job Success
$20K+ earned
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Ahmed S. has worked .
Full-stack developer with 4+ years of experience building production web applications — 15+ projects delivered, including e-commerce platforms, analytics dashboards, CMS systems, and real-time applications used by thousands of users. I design backend architectures, high- performance APIs, and cloud infrastructure that scale as the product grows — and I build the AI layer directly into those systems: RAG pipelines and LLM-powered features shipped on real production projects, not demos. BACKEND: Python (Django REST Framework, FastAPI, Flask), Java (Spring Boot), Node.js (Express.js, NestJS) FRONTEND: React, Next.js, Vue.js AI / LLM: OpenAI API, RAG pipelines, vector search on Microsoft SQL Server (MSSQL) DATABASES: PostgreSQL, MySQL, MongoDB, MSSQL, Firebase, SQLite CLOUD & INFRA: AWS (EC2, S3, Lambda, ECS, Fargate), GCP (Cloud Run), Docker, Kubernetes, CI/CD (Jenkins, GitHub Actions), Terraform, Redis, RabbitMQ, Celery How I help clients: - Design scalable backend architectures for SaaS platforms - Build high-performance REST APIs for web and mobile applications - Build RAG-based document Q&A systems — e.g. a chatbot that lets users upload large files and ask natural-language questions against them, retrieving relevant context via vector search instead of making users search manually - Optimize databases and backend performance - Set up automated CI/CD pipelines and cloud infrastructure (Terraform, Docker) Recent work: 1. Walmart Virtual Stores CMS — Backend lead on a CMS powering a mobile app that lets users create virtual storefronts with custom themes and 3D product placement, built on Walmart's product catalog. Designed a role-based, multi-stage approval workflow for product onboarding and publishing, and set up CI/CD and cloud infrastructure (Terraform, GCP Cloud Run, AWS ECS). 2. Rentpe — Product Rental Platform — Designed and built an e-commerce rental platform from the ground up using Java/Spring Boot microservices, architected for thousands of concurrent vendors and consumers, with a hybrid PostgreSQL + Firebase setup for real-time product status updates. 3. RAG Document Q&A Chatbot — Built with Python (Flask), using SQL Server (MSSQL) as the vector store. Lets users upload large documents and ask natural-language questions about their contents; retrieves relevant sections via vector search and generates grounded answers with an LLM, so users don't have to manually search through long files. Notable because it runs on standard MSSQL rather than a separate vector database — useful for enterprise clients who already run SQL Server and don't want new infrastructure. If you're looking for a developer who can design, build, and scale your application — AI features included — from idea to production, let's discuss your project.
Gargi K.
$25/hr
100% Job Success
$50K+ earned
Available now
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Gargi K. has worked .
𝟖+ 𝐲𝐞𝐚𝐫𝐬 | 𝐀𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 | 𝐓𝐨𝐩 𝐫𝐚𝐭𝐞𝐝 | 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐑𝐞𝐚𝐜𝐭.𝐣𝐬 | 𝟏𝟎𝟎% 𝐣𝐬𝐬 I build production-ready Web apps, SaaS platforms, internal tools, and ecommerce systems as a Full Stack Developer who owns the entire stack, from database design through deployment on AWS. Over 8+ years, I've delivered SaaS products where I led technical direction end-to-end as a Full Stack Developer. My work typically involves designing backend architecture in Node.js and Express, building scalable APIs, and pairing them with clean React.js, Next.js or Angular frontends. I don't split roles, I architect, build, test and ship complete systems myself. What I focus on as a Full Stack Developer: My day-to-day as a Full Stack Developer means thinking about both layers simultaneously. A robust backend doesn't matter if the frontend can't consume it cleanly. A beautiful interface breaks if the API doesn't scale. So I design backwards from user workflows and forwards from infrastructure constraints. When you hire a Full Stack Developer like me, you're not paying for coverage across two domains, you're getting someone who treats the entire system as one cohesive problem. That changes how I approach every decision, from schema design to component architecture. Core strengths as a Full Stack Developer: I regularly work on Full Stack Developer projects that require: Multi-tenant SaaS architectures with role-based access and permissions Complex internal dashboards and workflow tools for teams Ecommerce platforms and custom Shopify app builds Payment integrations, ledger systems, and financial workflows Third-party API integrations and real-time data sync pipelines AI-powered backend features, not just prompt wrappers, but thoughtful integration into actual product workflows Scalable query logic and database optimization from a Full Stack Developer perspective On the backend side, where most of my time sits as a Full Stack Developer, I design services in Node.js and Express, manage PostgreSQL and MongoDB databases, handle background jobs and async workflows, and deploy everything on AWS infrastructure (EC2, S3, CloudFront, Route 53). TypeScript is standard across my Full Stack Developer work. I approach backend design the way a Full Stack Developer should: not in isolation, but thinking about how frontend code will consume it, how operations teams will monitor it, and how it'll perform under real load. On the frontend side, as part of being a Full Stack Developer, I build interfaces in React.js, Next.js or Angular depending on what the product needs. I prioritize performance, accessibility and maintainability over trendy patterns. Working as a Full Stack Developer on the frontend means understanding that component choices cascade into backend implications. If a page loads 100 records, that 𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 ▪ 8+ years of professional Full Stack development ▪ Strong expertise in MEAN/MERN (MongoDB, Express, Angular/React, Node.js) ▪ Experience as a Lead Full stack Developer owning architecture & technical decisions ▪ Delivered AI-enabled web applications for startups & SaaS companies ▪ Proven ability to optimize performance, scalability & system reliability 𝐌𝐲 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 Frontend ▪ React.js, Next.js, Angular, TypeScript, JavaScript (ES6+), HTML5, CSS3, SASS / SCSS, Responsive & Cross-browser UI Backend ▪ Node.js, Express.js, REST APIs, Authentication & Authorization Databases ▪ MongoDB, MySQL, PostgreSQL 𝐀𝐈, 𝐋𝐋𝐌𝐬 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 ▪ LLM & Generative AI integration (OpenAI, Anthropic, Gemini, LLaMA) ▪ AI workflows using LangChain, Vertex AI & Document AI ▪ Machine Learning & Deep Learning (PyTorch, TensorFlow, scikit-learn) ▪ Computer Vision solutions using OpenCV ▪ AI automation & orchestration using n8n ▪ AI-assisted development with Antigravity, CursorAI & GitHub Copilot 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐈 𝐅𝐨𝐜𝐮𝐬 𝐎𝐧 ✔ Full Stack Development (MEAN, MERN) ✔ Angular Application Development ✔ React.js Frontend Development ✔ Node.js Backend Development ✔ AI-Integrated Web Applications ✔ SaaS & Startup MVP Development ✔ API Development & Integration ✔ Performance Optimization ✔ AI Development 𝐃𝐨𝐦𝐚𝐢𝐧 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 ▪ Custom Digital Products & Software Solutions ▪ AI-Powered Applications & Intelligent Systems ▪ Business Process Automation Tools ▪ Startup MVPs (Idea → Execution) ▪ Dashboards & Admin Panels ▪ CRM & Custom Business Applications 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞 ✔ Free 30-minute consultation before starting ✔ 8+ years of Full Stack experience ✔ Expert in Angular, React.js, Node.js, MEAN/MERN & AI ✔ Clean, scalable & maintainable code ✔ Clear communication & proactive ownership Angular Developer | React.js Developer | Node.js Developer | MEAN Stack Developer | MERN Stack Developer | Full Stack Developer | AI Engineer | JavaScript Developer | SaaS Developer | Startup Developer | Supabase
Ameer H.
$40/hr
100% Job Success
$100K+ earned
Available now
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Ameer H. has worked .
✔ 8+ years of experience in AI development, SaaS development, and full-stack web/mobile app development ✔ 5,200+ Upwork hours with 100% Job Success ✔ Top-Rated Plus with long-term client relationships ✔ Strong backend architecture & scalable system design ✔ Business-focused mindset — not just code I help startups, SaaS founders, and growing businesses build AI-powered, secure, and scalable applications — from MVP to production — with clean architecture and real business impact. Whether you need AI implementation, a SaaS platform, a custom backend system, or a full-stack web or mobile app, I deliver end-to-end AI development and software development that is fast, reliable, and built to scale. I don't just develop features — I build systems that support growth. AI Development, AI Implementation & AI Model Development AI app development: GPT & LLM integrations, RAG-based knowledge systems AI model training & AI model development for ranking, personalization, and recommendation engines (built a real-time AI ranking engine for a news personalization platform, factoring recency, source authority & engagement) AI-powered chat systems, internal tools & intelligent workflow automation AI visibility/analytics platforms (shipped a full production AI analytics dashboard in Next.js/React) SaaS Development — Scalable, Production-Ready Platforms Full-stack SaaS development (Django, Flask, Node.js, Next.js, React) MVP development for startups Multi-tenant systems, subscription platforms & recurring billing (Stripe subscriptions, Apple Pay, webhooks) Admin dashboards & analytics panels Staffing/workforce & operations SaaS: scheduling, onboarding, payroll automation (built with Django + Vue.js) Web Development — Python, JavaScript, React, Next.js, Angular Backend: Python, Django, Flask, Node.js Frontend: Next.js, React, JavaScript, Angular, Vue.js REST & GraphQL APIs, microservices architecture Third-party integrations: Stripe, CRMs, payment gateways Real-time systems with WebSockets Android App Development, iOS Development & React Native Cross-platform mobile apps with React Native (deep linking, real-time chat, in-app payments) Native-feel Android app development & iOS development from a single codebase Booking, marketplace & subscription mobile apps shipped to production Cloud & Deployment AWS & DigitalOcean deployments Dockerized environments & CI/CD pipelines Performance optimization & scaling Tech Stack Backend: Python, Django, Flask, Node.js Frontend: Next.js, React, JavaScript, Angular, Vue.js Mobile: React Native (Android app development, iOS development) Databases: PostgreSQL, MySQL, MongoDB AI/ML: OpenCV, TensorFlow, MediaPipe, LLM APIs, RAG Cloud: AWS, DigitalOcean What You Can Expect Clean, scalable architecture built for growth Fast performance & optimized systems Secure, production-ready applications Clear communication & on-time delivery Long-term technical partnership If you're building an AI-powered product, a serious SaaS platform, or scaling your app, I'd love to help. Message me today to discuss your project. Click "Invite to Job" and let's turn your idea into a scalable product.
Eugene L.
$89/hr
100% Job Success
$30K+ earned
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Eugene L. has worked .
Experienced AI & Full Stack Developer with a strong track record across web, mobile, and desktop application development, including AI avatar generators, virtual AI assistants, text chat, VoIP, and video chat. Skilled in building autonomous AI systems, multi-agent architectures, RAG pipelines, LLM-powered applications, and workflow automation solutions. Experienced in deploying production-ready AI systems with a focus on reliability, scalability, and performance. Proven ability to contribute as both an individual contributor and team leader, with successful projects delivered across finance, commerce, entertainment, lifestyle, and AI domains. Key strengths include: - AI: OpenAI, Claude, Gemini, Stable Diffusion, LoRA, ElevenLabs, HeyGen, RunwayML, LangChain, LlamaIndex, AutoGen, CrewAI, RAG, Multi-Agent Systems, MCP Servers - Cross-Platform & UI: C++, Qt & QML, PySide, Rust - DevOps & Cloud: CI/CD, AWS, GCP, Azure - Frontend & Mobile: React, Angular, React Native, Swift, Flutter - Backend & Core: JavaScript, TypeScript, Node.js, Python, Go, Java, PHP, Ruby on Rails * Architecture & Leadership: Full-cycle product development, UI/UX focus, agile processes, team collaboration
Arjun S.
$20/hr
100% Job Success
$100K+ earned
Available now
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Arjun S. has worked .
🚀Full-Stack Developer | AI Expert | MVP Craftsperson | Over 10 Years in Tech Hi, I’m Arjun, the tech partner you need to work on full-stack web and mobile apps live systems, and modern AI integrations. With 10 years of experience, I’ve worked with startups small businesses, and big companies worldwide to create digital tools that grow with demand. From simple MVPs to operational systems, I’ve tackled projects in industries like health e-commerce, banking tech, insurance, and plenty more. ✅ What I Offer: ◐Building with a Product Focus - I don’t just write code. I help craft tools that work for users/scale ◐ Ready for Startups - I’ve tackled MVPs navigated pivots, and helped businesses grow. ◐ Smarter with AI -Adding GPT/ChatGPT to apps to boost intelligence and usability. ◐ Strong Foundations - From real-time systems and cloud setups to microservices, DevOps pipelines. ◐ Code That Lasts - Designed to perform well and stay easy to maintain. 🔧 Tools I Work With: Frontend Technologies: React.js Next.js, React Native, TypeScript, Tailwind CSS, MUI Backend Tools: Node.js, Express, Python, Django, and REST APIs Databases Used: MongoDB, PostgreSQL MySQL, Redis, and Firebase DevOps and Cloud: AWS, Docker, Kafka, RabbitMQ, Git, CI/CD pipelines, and microservices AI Tools: Integration with OpenAI, ChatGPT, GPT API, and LangChain 💼 What I Can Do for You: ✅ Full-Stack Development for Web and Mobile Apps (iOS and Android using Flutter or React Native) ✅ Building Real-time Features (Chat, Video, Location Tracking, Dashboards) ✅ Creating MVP Prototypes to help Startups ✅ Adding Smart Features through OpenAI or ChatGPT Integration ✅ Developing and Integrating APIs (REST and GraphQL) ✅ Designing Microservices and Deploying to the Cloud ✅ Turning UI/UX Designs (Figma to Code) into Functional Interfaces 🧠 Reasons Clients Trust My Work: Over 10 years of experience | Delivered 130+ projects Communicates well, sticks to deadlines dependable results More than just a coder - a long-term tech collaborator Skilled at working with global teams from different time zones FREE technical advice to help you decide ⭐ Let’s Create Something Great Together Need a reliable and experienced full-stack developer who brings real value, not just features? Let’s have a conversation. 📩 Reach out today! I’ll provide a FREE technical review to kickstart your project. Cheers, Arjun Your Full-Stack Problem Solver | AI Enthusiast | Product Engineer
Dignizant Technologies LLP
Associated with
Dignizant Technologies LLP
Mohsin J.
$28/hr
100% Job Success
$100K+ earned
Available now
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Mohsin J. has worked .
✔︎ TOP RATED PLUS | 100% Client Satisfaction | 9+ Years Enterprise Delivery ✔︎ Full Stack Expert: .NET Core | C# | Python | React | Node.js | AI Integration ✔︎ Specialized in SaaS, FinTech, HealthTech, ERP, CRM, Marketplaces, and Cloud Platforms ✔︎ AI-Powered Apps | Scalable SaaS Architecture | Production-Ready Full Stack Systems Are you building a SaaS product, an AI-powered web application, an ERP system, or an enterprise platform that needs to scale fast, perform under pressure, and ship on time? I design and deliver full-stack systems using .NET Core, C#, Python, React, and Node.js, handling everything from database architecture to cloud deployment, with clean code, full ownership, and zero shortcuts from day one. 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𖧹 .NET and C# Development: ASP.NET Core, .NET 6/7/8, MVC, Web API, Entity Framework, LINQ, Blazor 𖧹 AI and Automation: OpenAI API, LangChain, AI Agents, Chatbot Development, Prompt Engineering, AI-Powered SaaS Products 𖧹 Python Development: FastAPI, Django, REST APIs, Automation Scripts, Data Processing, AI and ML Pipeline Integration 𖧹 React and Node.js: ReactJS, NextJS (SSR/SSG), NodeJS, NestJS, ExpressJS, Angular, REST APIs, GraphQL APIs 𖧹 Frontend Engineering: TypeScript, Tailwind CSS, Material UI, Ant Design, Bootstrap, Framer Motion, Redux Toolkit, React Query 𖧹 Backend Systems: Microservices Architecture, gRPC, WebSockets, SignalR, Kafka, RabbitMQ, Event-Driven Design 𖧹 Databases and Caching: PostgreSQL, SQL Server, MySQL, MongoDB, Redis, Firebase, DynamoDB, Firestore, Schema Optimization, Indexing 𖧹 Architecture and Security: Multi-Tenant SaaS, RBAC, OAuth2, JWT, Secure Auth, Stripe API, Monolith to Microservices Migration 𖧹 Cloud and DevOps: AWS (EC2, Lambda, ECS, S3), Azure App Services, Azure Functions, Docker, Kubernetes, Terraform, CI/CD, GitHub Actions, GitLab, Vercel, DigitalOcean, Heroku 𖧹 Performance and Testing: Core Web Vitals, API Latency Optimization, Unit Testing, Jest, Cypress, Playwright, Mocha, PWA, SEO Optimization, Production Hardening 𝗥𝗲𝗰𝗲𝗻𝘁 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗧𝗵𝗮𝘁 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 𝗥𝗲𝘀𝘂𝗹𝘁𝘀 ➜ BookedSolid | AI Appointment Automation SaaS Tech: OpenAI, Twilio, Node.js, React, MongoDB 𖧹 Built an AI-powered booking engine with natural language scheduling via SMS and voice 𖧹 Automated end-to-end appointment workflows, cutting manual handling by 80% ➜ Renters / GetRenters | FinTech SaaS Platform Tech: Next.js, Tailwind CSS, Node.js, AWS Lambda, MongoDB 𖧹 Architected lease management dashboards, workflows, and Stripe Connect payment integration 𖧹 Optimized all APIs for 40% faster load times, now actively serving 10,000+ users ➜ Ucardia | HealthTech and Wellness Platform Tech: ReactJS, NestJS, Python, PostgreSQL, Redis 𖧹 Built a HIPAA-compliant clinician portal with real-time patient data streams 𖧹 Integrated wearable devices, automated health notifications, and a fully secure API layer ➜ DigitalSchools | EdTech ERP System Tech: .NET Core, React.js, Azure 𖧹 Delivered a complete school management platform covering Admissions, Fees, Attendance and Multi-Tenant architecture 𖧹 Implemented enterprise-grade RBAC access control across all user roles and modules ➜ High-Traffic E-Commerce and Marketplace Platform Tech: MERN Stack, Node.js, PostgreSQL 𖧹 Engineered a custom cart, payment gateway integration, and dynamic inventory management system 𖧹 Optimized fully for mobile, desktop, and high-concurrency production traffic 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗛𝗶𝗿𝗲 𝗠𝗲 𝗔𝗴𝗮𝗶𝗻 𝗮𝗻𝗱 𝗔𝗴𝗮𝗶𝗻 ✔︎ End-to-End Ownership: I handle Architecture, Database, Backend, Frontend, Cloud, and Deployment myself ✔︎ AI-Ready Development: Every system I build is structured to integrate AI features today or in the future ✔︎ Clean and Strictly Typed Code: TypeScript, C#, Python, and Node.js, always maintainable and fully documented ✔︎ Scalable by Design: Multi-tenant SaaS, microservices, and cloud-native architecture from the ground up ✔︎ Transparent and Reliable: Daily progress updates, structured Agile workflow, no surprises, and no ghosting ever Whether you are building a SaaS product, an AI-powered platform, an ERP or CRM system, a FinTech application, a HealthTech dashboard, or a high-traffic marketplace, I deliver production-tested, enterprise-grade solutions built for real-world scale and long-term growth. Send me a message so we can discuss. Full Stack, MERN Stack, MEAN Stack, .NET, ASP.NET Core, C#, Blazor, MVC, Web API, Python, FastAPI, Django, Node.js, NestJS, ExpressJS, ReactJS, Next.js, Angular, Vue.js, TypeScript, Tailwind CSS, Material UI, Ant Design, Framer Motion, Redux Toolkit, React Query, Context API, REST API, GraphQL, gRPC, WebSockets, SignalR, MongoDB, PostgreSQL, MySQL, SQL Server, Redis, DynamoDB, Firestore, Kafka, RabbitMQ, Microservices, Multi-Tenant SaaS, OAuth2, JWT, RBAC, Stripe API, OpenAI API, LangChain, AI Agents, AWS, Lambda, EC2, S3, ECS, Azure Functions, Azure App Services, Docker
Muhammad H.
$30/hr
100% Job Success
$10K+ earned
Offers consultations
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Muhammad H. has worked .
I build full-stack AI systems and own them all the way to production — architecture, backend, frontend, cloud infrastructure, and deployment. Not just the code. The whole thing. What I actually ship: → AI agent systems and agentic pipelines — multi-agent orchestration, Claude API, MCP integrations, RAG, tool-calling, workflow automation → Voice AI systems — real-time call handling, scheduling flows, live transcription, ElevenLabs, Twilio, Vapi → Event-driven backends — fault-tolerant job queues, circuit breakers, distributed architecture, real-time delivery at scale → Full-stack platforms — React/Next.js frontends, FastAPI/Node.js APIs, PostgreSQL/MongoDB, WebSockets On the cloud and DevOps side I handle the full deployment lifecycle myself: → AWS (EC2, S3, Lambda, RDS, CloudWatch, IAM, Route 53) → Docker, CI/CD pipelines, GitHub Actions, zero-downtime deploys → OAuth2, JWT, API security, rate limiting, secrets management → Monitoring, alerting, incident response, cost optimization → Nginx, reverse proxies, SSL/TLS, structured logging I'm comfortable hardening what I build — IAM policies, environment isolation, secure API design — without needing a separate security specialist for standard production requirements. Stack: Node.js / NestJS · Python / FastAPI · React / Next.js · TypeScript · AWS · Docker · Redis · BullMQ · PostgreSQL · MongoDB · Claude API · OpenAI API · ElevenLabs · Twilio · GitHub Actions Most useful when a project needs one person who can own frontend, backend, infra, and deployment end to end — without stitching together three contractors. Top Rated | 100% Job Success | async-first | no hand-holding needed.
Puneet K.
$30/hr
100% Job Success
$100K+ earned
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Puneet K. has worked .
$100K+ Earned | 42 Jobs Completed | 100% Job Success | 15+ Years of Experience If you need an AI system, SaaS platform, or cloud backend built right the first time - without the back-and-forth, scope creep, and "we'll figure it out later" approach - you're in the right place. ✔️ I work best with founders and product teams who are thinking: - "I need an AI agent or LLM system that actually works in production, not just a prototype" - "I need someone who owns the architecture, not just the code" - "I've been burned by developers who disappear after delivery - I need reliability" - "I need the full stack handled - frontend, backend, DevOps, AI - by one person who gets it all" ✔️ Working with me, you get: 🌟 End-to-end ownership: from system architecture and AI integration to deployment, scaling, and ongoing automation 🌟 Production-grade AI systems: RAG pipelines, multi-agent workflows, LLM integrations using LangChain, OpenAI, and Claude 🌟 Cloud-native infrastructure: AWS, Azure, GCP, Docker, Kubernetes, CI/CD - built to scale from day one 🌟 12+ years of full stack depth: React, Node.js, Next.js, Python, Django, GraphQL, and more ✔️ We might not be the right fit if: ✗ You need the cheapest option available - I focus on quality and long-term value, not the lowest bid ✗ You have no clear vision for what you're building - I work best with founders who know their product direction ✗ You need someone to "just code" without thinking about architecture or outcomes [ INDUSTRIES I'VE BUILT FOR ] - FinTech & Banking | Healthcare & MedTech | LegalTech & Compliance - EduTech & E-Learning | E-Commerce & Retail | Logistics & Supply Chain - Real Estate & PropTech | Travel & Hospitality | InsurTech | Manufacturing & Distribution - Cybersecurity | Media & Publishing | AI/ML & Data Analytics [ WHAT I BUILD ] - AI SaaS Platforms & Multi-Tenant SaaS Applications - AI Agent Systems, Chatbots & LLM-Powered Applications - Booking Platforms, Marketplaces & Customer Portals - ERP, CRM, LMS, EHR & Case Management Systems - Progressive Web Apps (PWA) & Cloud-Native Applications - DevOps Pipelines & Infrastructure Automation [ MY TECH STACK ] - Frontend - React, Next.js, Vue.js, TypeScript, Tailwind CSS - Backend - Node.js, Python, Django, FastAPI, Nest.js, GraphQL - AI & ML - LangChain, OpenAI API, Claude, RAG Pipelines, Multi-Agent Systems - Cloud - AWS, Azure, GCP, Docker, Kubernetes, Terraform, CI/CD - Databases - PostgreSQL, MongoDB, MySQL, DynamoDB, Redis, Elasticsearch - Security - OAuth, JWT, SSL/TLS, OWASP, SonarQube [ CORE SKILLS ] - AI Agent Development | LLM Integration | RAG Pipeline Development - Multi-Agent System Architecture | Full-Stack SaaS Development - Mobile & Web Application Development | API Design & Integration - Cloud Solution Architecture | DevOps & AIOps Engineering - Database Design & Management | Infrastructure as Code (IaC) What I bring that most developers don't - I don't just write code. I make architecture decisions, set up infrastructure, automate the deployment pipeline, and ensure the system scales correctly from day one. You get a single point of ownership across the entire build, not a developer who stops at the code and hands off the rest. If your project involves AI agents, LLM integration, SaaS platform development, or cloud infrastructure - and you need someone who can own it end to end - let's talk. A 20-minute call is usually enough to know if we're a good fit.
Vavensoft Private Limited
Associated with
Vavensoft Private Limited
Hammad H.
$30/hr
100% Job Success
$100K+ earned
Available now
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Hammad H. has worked .
AI agents, RAG, and automation built into production web and SaaS apps, full-stack, not demos. Recent builds scaled an energy platform to 1.2M+ users and an AI document system across 550+ sites. I'm a senior full-stack and AI engineer (React/Next.js + Python/FastAPI) who makes AI actually connect to your data, your UI, and your users. What I deliver: - AI agents and automation that plan, call tools, and finish multi-step jobs (LangChain, LangGraph, MCP, OpenAI, and Claude APIs), with evaluation and observability built in. - RAG and document intelligence over your data (vector DBs, embeddings), grounded so it answers from your sources, not invented facts. - Voice and conversational AI in production (Retell, Vapi, ElevenLabs). - The full-stack around it: multi-tenant SaaS, FastAPI, Stripe, secure cloud on AWS, Azure, GCP. Proven in production: - Alta (PropTech): AI reads building documents to auto-extract energy data and answer questions across 25+ organizations, 550+ sites, 1.6M+ m2. - OhmConnect (GreenTech): 4.5-year build scaling a consumer energy platform to 1.2M+ signups, $1.8M+ rewards, 370K+ connected devices. - Hero Trainer (HealthTech): cross-platform fitness app with live HealthKit and Google Fit sync on a Django backend. I work as your AI solutions architect with a vetted CodeFulcrum team (Top Rated Plus) behind me, so the right AI gets designed and shipped, not just advised on. Stack: Python, Django, FastAPI, LangChain, LangGraph, MCP, RAG, Vector DBs, OpenAI, Claude, React, Next.js, Node.js, PostgreSQL, AWS. Send your use case, and I'll reply with a short architecture sketch and a realistic scope, no charge.
CodeFulcrum
Associated with
CodeFulcrum
$400K+
earned
$35/hr
100% Job Success
$300K+ earned
Available now
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Nebyu Z. has worked .
🚀 Professional Full stack developer 🏆 Over a Decade of Expertise Crafting Digital Solutions ☑ $300K+ in Earnings | 🥇100% Job Success Rate | 💯 Top-Plus Ratings 😃 Helping You Worry Less and Grow More with Full stack Solutions Master of craft: ☑ App Architect: Transforming your React app dreams into standouts within the crowded digital landscape. Creating not just interfaces but immersive experiences using React and Python that captivate and retain your audience. ☑ Web Artisan: Breathing new life into React and Python websites, ensuring they're not just places but engaging spaces. Conquering the sluggishness and intricacies of Web Development and design, leaving you with a modern, sleek digital home. ☑ Software Launch: Untangling the knots in your stuck Full stack project. Enhancing functionality using React, Python, and server-side technologies while ensuring an impeccable user journey. Rescuing projects from the abyss of coding complexities. ☑ Web App: Adding the elusive wow factor to your web apps using React and Python, making them magnetic to users. Navigating the tricky waters of cross-platform adaptation with finesse. ☑ Troubleshooting: Your project’s bug whisperer and tech-setup surgeon. From database headaches to overall system overhauls, bringing clarity and seamless solutions for your Full stack web development needs. ☑ Innovation Catalyst: Injecting fresh ideas and cutting-edge tech like React and Python into your digital presence. Turning your project into a beacon of innovation. ☑ Speed: Transforming sluggish React applications into sprinters. Specializing in performance optimization, ensuring your users experience digital velocity with Python back-end support. ☑ Data Dynamo: Wrestling with data dilemmas becomes a breeze. Streamlining databases for effortless organization and retrieval using Python, React, and database technologies for optimal Full stack solutions. What I Unleash: ☑ Front-End Symphony: Weaving seamless and immersive user interfaces with the mastery of React, HTML5, CSS3, and JavaScript, bringing your web development vision to life. ☑ Back-End Symphony: Commanding Node.js and Python to orchestrate robust server-side functionalities in your Full stack project. ☑ Database Mastery: Juggling MySQL, MongoDB, and SQL Server like a data virtuoso, ensuring organizational harmony for your Full stack web apps. ☑ Git Virtuosity: Orchestrating code collaboration with the finesse of a Git maestro for Full stack web development projects. ☑ Deployment Odyssey: Navigating Docker, AWS, and Heroku realms to ensure your React and Python creations reach their destination seamlessly. Technical Wizardry: ☑ Front-End Mastery: Proficient in the art of creating interfaces that captivate using HTML5, CSS3, and JavaScript. ☑ Back-End Sorcery: Skillfully conjuring robust server-side functionalities with Node.js and Python, delivering scalable Full stack solutions. ☑ Data Enchantment: Adept at weaving magic with MySQL, MongoDB, and SQL Server, ensuring your data dances in perfect harmony. ☑ Query Optimization Sorcery: Fine-tuning database queries, transforming them from a maze into a melody. ☑ Git Mastery: Proficient in the magical version control world of Git, ensuring your code sings in perfect harmony. ☑ Deployment Odyssey: Navigating the realms of Docker, AWS, and Heroku to ensure your creations reach their destination seamlessly. Soft Skill Showcase: ☑ Problem-solving: Identifying and resolving complex issues to keep your Full stack web development project on a smooth trajectory. ☑ Adaptive: Quick to embrace and master new technologies like React and Python, staying ahead of industry trends in web development. ☑ Precision Architect:Meticulous in coding and design, ensuring every detail contributes to a polished Full stack solution. ☑ Communication: Crafting clear and transparent communication to foster collaboration and understanding within your React and Python projects. ☑ Time Management: Commitment to timely project delivery, turning deadlines into stepping stones for success. I appreciate you taking the time from your busy schedule to view my profile. if you want to know more look at my portfolio bellow. read some of the things my clients had to say about me. I look forward to working with you.
Mereb Technologies
Associated with
Mereb Technologies
$30K+
earned