Hire the Best Graph Databases Specialists
in India

I'm a full-stack developer with over 6 years of experience building fast, scalable web applications using technologies like React.js, and Next.js on the frontend, and Node.js, Express.js, Django, Flask, and FastAPI on the backend. My experience includes working with MongoDB, PostgreSQL, MySQL, and Firebase, along with deploying applications using tools like Docker/Kubernetes, GitHub, AWS, Vercel, and Heroku. I focus on writing clean, maintainable code and creating responsive, user-friendly interfaces that ensure high performance and reliability. 💻 Tech Stack I Use 🎨 Frontend ⚛️ React.js, Next.js 🎀 Tailwind CSS, Bootstrap, CSS 📱 Progressive Web Apps (PWA) 🛠️ Backend 🟢 Node.js, Express.js 🐍 Python (Flask, FastAPI) 🔌 REST APIs, GraphQL, microservices, authentication systems 🗄️ Databases & DevOps 🗃️ MongoDB, PostgreSQL, MySQL, Firebase ☁️ AWS, Vercel, Render, Heroku, Docker, Kubernetes, Terraform 🔧 Git & GitHub (team workflows, PRs, CI/CD integration) ✨ Additional Skills: → Payment Gateway Integrations: Seamless integration of various payment systems. → Messaging Protocols: MQTT & AMQP for real-time communication. → Caching: Redis for enhancing application performance. 🔹 My Development Process 1️⃣ Discovery Call – 💬 Understand your vision & requirements 2️⃣ Project Planning – 📅 Define timelines & milestones 3️⃣ Design & Development – 🎨 Regular updates & live previews 4️⃣ Testing & Launch – ✅ QA testing & smooth deployment 5️⃣ Ongoing Support – 🔄 30 days of free maintenance included 🚀 Ready to Start Your Project? Let's discuss how I can help transform your ideas into reality. I offer FREE consultation calls to understand your needs and provide a detailed project roadmap.

Senior AI Engineer | AI Agents, LLM & RAG | Chatbots, n8n & AI Automation | OpenClaw & Hermes ✅ $40K+ earned · 72 jobs · 680+ hours on Upwork · 8+ years · AWS & MITx certified I build AI systems that RUN OPERATIONS — not just answer questions. ▪️ RAG pipelines that cut support tickets by 40% ▪️ AI agents that qualify leads, make outbound calls & book appointments 24/7 ▪️ Multi-agent workflows that replaced 3 full-time coordinators for a property firm ▪️ Automations that save clients 10–20 hours every week All running in production, without human intervention. That's the gap between a demo and a deployed system — and that's where I work. 🎁 NOT SURE AI FITS YOUR WORKFLOW? I'll build you a free mini-POC — something small and real you can test on your own use case before committing a dollar. ━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🤖 AI AGENTS & MULTI-AGENT SYSTEMS AI agent development with LangChain, LangGraph, CrewAI, AutoGen, OpenAI Agents SDK, Google ADK, and PydanticAI. Custom MCP servers connecting agents to databases, APIs, CRMs, and internal tools. Persistent memory, autonomous task execution, and multi-agent delegation. ⚙️ AI AUTOMATION & INTEGRATIONS n8n, Make com, and Zapier Deep GoHighLevel, HubSpot, Salesforce, and Pipedrive integration. End-to-end CRM workflows, lead routing, appointment booking, and AI built into the tools your business already runs on. 💬 AI CHATBOTS Production chatbots powered by ChatGPT, Claude, and Gemini — deployed on WhatsApp, Telegram, Instagram, web widgets, and SMS. Lead qualification, appointment booking, FAQ deflection, and 24/7 support, integrated with GoHighLevel, HubSpot, and Salesforce. 📚 RAG & LLM APPLICATIONS Production RAG pipelines with LangChain, LlamaIndex, Pinecone, Weaviate, Qdrant, ChromaDB, and pgvector. Enterprise knowledge bases, PDF chatbots, document AI, and semantic search deployed for legal, medical, real estate, and finance clients. 🚀 AI SaaS & MVPs Full-stack Generative AI platforms shipped in weeks. Next.js, React, Python, FastAPI, Supabase, and Stripe. Architecture to deployment on AWS, GCP, and Vercel. 🗣️ VOICE AI AI receptionists and SDR callers with Vapi, Retell AI, ElevenLabs, Deepgram, and Twilio — booking and qualifying leads 24/7. 🧠 SPECIALIST EDGE: I also deploy and customize OpenClaw and Hermes Agent for production — SOUL.md design, ClawHub skills, MCP bridges, persistent memory, and multi-channel deployment. Plus LLM fine-tuning (LoRA, QLoRA) and inference optimization (vLLM, TGI) when projects need it. ━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ STACK OpenAI / Claude / Gemini / Mistral / Llama / DeepSeek | Python, FastAPI, Node.js, Django | React, Next.js | PostgreSQL, MongoDB, Redis, Supabase | Docker, Kubernetes, AWS, GCP 🏢 INDUSTRIES Real Estate, Healthcare, Legal, E-commerce, Finance, Insurance, Marketing Agencies, SaaS, Education, Recruiting ━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚙️ HOW I WORK 1. Scoping call → understand your problem 2. Architecture → design the right system 3. Fast prototype → working demo in days 4. Production hardening → scale, security, monitoring 5. Documentation & handoff → your team owns it 💬 SEND ME YOUR IDEA — even rough notes. I'll give you an honest take: how I'd build it, what it realistically takes, and whether AI is even the right call (sometimes it's overkill — I'll tell you straight). If it's a fit, I'll show you a working mini-POC before you commit a dollar. Let's build something that actually runs.

𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 & 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 8+ 𝗬𝗲𝗮𝗿𝘀 | 𝟭% 𝗼𝗳 𝗨𝗽𝘄𝗼𝗿𝗸 | 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀. ✅ $300K+ Total earnings ✅8+ Years experience as Fullstack Developer ✅ 80+ Projects Completed. ✅Top Rated Plus. ✅ 100% Job Success Rate. ✅ AWS certified ✅ Python certified ✅50hrs/week available ✅ 4+ AI/ML Integrations 🔴 I am in the 𝗧𝗼𝗽 𝟭% overall on Upwork. 🔴 I am in the 𝗧𝗼𝗽 𝟰% overall on Stack Overflow. 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭 / 𝐕𝐨𝐢𝐜𝐞 𝐀𝐠𝐞𝐧𝐭𝐬: 𝐂𝐫𝐞𝐰𝐀𝐈 / 𝐀𝐮𝐭𝐨𝐆𝐞𝐧 / 𝐀𝐦𝐚𝐳𝐨𝐧 𝐏𝐨𝐥𝐥𝐲 / 𝐃𝐞𝐞𝐩𝐠𝐫𝐚𝐦 / 𝐑𝐚𝐬𝐚 𝐀𝐈 / 𝐑𝐢𝐯𝐞𝐫𝐬𝐢𝐝𝐞 𝐒𝐃𝐊 / 𝐀𝐳𝐮𝐫𝐞 𝐀𝐈 𝐒𝐩𝐞𝐞𝐜𝐡/𝐋𝐋𝐌 𝐅𝐢𝐧𝐞𝐭𝐮𝐧𝐢𝐧𝐠: 𝐔𝐬𝐢𝐧𝐠 𝐏𝐄𝐅𝐓 / 𝐋𝐨𝐑𝐀 / 𝐐𝐋𝐨𝐑𝐀 / 𝐑𝐋𝐇𝐅 / 𝐃𝐏𝐎 / 𝐒𝐅𝐓 𝐰𝐢𝐭𝐡 𝐔𝐧𝐬𝐥𝐨𝐭𝐡 / 𝐀𝐱𝐨𝐥𝐨𝐭𝐥 / 𝐇𝐮𝐠𝐠𝐢𝐧𝐠𝐅𝐚𝐜𝐞 𝐀𝐮𝐭𝐨𝐓𝐫𝐚𝐢𝐧 / 𝐒𝐚𝐠𝐞𝐌𝐚𝐤𝐞𝐫 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠/𝐎𝐩𝐞𝐧-𝐒𝐨𝐮𝐫𝐜𝐞 𝐋𝐋𝐌𝐬: 𝐋𝐋𝐀𝐌𝐀 𝟑 / 𝐌𝐢𝐬𝐭𝐫𝐚𝐥 𝟕𝐁 / 𝐌𝐢𝐱𝐭𝐫𝐚𝐥 𝟖𝐱𝟕𝐁 / 𝐅𝐚𝐥𝐜𝐨𝐧 / 𝐆𝐞𝐦𝐦𝐚 / 𝐁𝐥𝐨𝐨𝐦 / 𝐎𝐫𝐜𝐚 𝐌𝐢𝐧𝐢 / 𝐆𝐮𝐚𝐧𝐚𝐜𝐨/𝐅𝐚𝐬𝐭 𝐈𝐧𝐟𝐞𝐫𝐞𝐧𝐜𝐞: 𝐯𝐋𝐋𝐌 / 𝐓𝐆𝐈 / 𝐓𝐞𝐧𝐬𝐨𝐫𝐑𝐓-𝐋𝐋𝐌 / 𝐒𝐊𝐏𝐢𝐥𝐨𝐭/𝐏𝐫𝐨𝐦𝐩𝐭 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠: 𝐌𝐮𝐥𝐭𝐢-𝐭𝐮𝐫𝐧 / 𝐅𝐞𝐰-𝐬𝐡𝐨𝐭 / 𝐙𝐞𝐫𝐨-𝐬𝐡𝐨𝐭 / 𝐑𝐀𝐆-𝐁𝐚𝐬𝐞𝐝 / 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐚𝐛𝐥𝐞 𝐏𝐢𝐩𝐞𝐥𝐢𝐧𝐞𝐬/𝐐𝐮𝐚𝐧𝐭𝐢𝐳𝐚𝐭𝐢𝐨𝐧: 𝐀𝐖𝐐 / 𝐆𝐏𝐓𝐐 / 𝐆𝐆𝐔𝐅 / 𝐆𝐆𝐌𝐋 / 𝐐𝐋𝐎𝐑𝐀 / 𝐏𝐓𝐐 / 𝐃𝐐/𝐑𝐀𝐆 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 & 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: 𝐋𝐚𝐧𝐠𝐂𝐡𝐚𝐢𝐧 / 𝐋𝐥𝐚𝐦𝐚𝐈𝐧𝐝𝐞𝐱 / 𝐂𝐡𝐫𝐨𝐦𝐚 / 𝐅𝐀𝐈𝐒𝐒 / 𝐏𝐢𝐧𝐞𝐜𝐨𝐧𝐞 / 𝐐𝐝𝐫𝐚𝐧𝐭 / 𝐖𝐞𝐚𝐯𝐢𝐚𝐭𝐞 / 𝐌𝐢𝐥𝐯𝐮𝐬 Greetings! I am Atul Kumar, a seasoned developer with over 8+ years of experience in web application and software development. Working with LLMs for the past 8+ years and have good expertise in AI Agents development using langchain, LlamaIndex, and LLMs like Claude, GPT4o, Amazon Bedrock, Ollama 🔹 AI Agents / Voice Agents: CrewAI, AutoGen, Amazon Polly, Deepgram, Rasa AI 🔹 LLM Fine-tuning: PEFT, LoRA, QLoRA, RLHF, DPO with Unsloth, Axolotl, HuggingFace AutoTrain 🔹 Open-Source LLMs: LLaMA 3, Mistral 7B, Mixtral 8×7B, Falcon, Gemma 🔹 Inference Optimization: vLLM, TGI, TensorRT-LLM 🔹 Prompt Engineering: Multi-turn, Few-shot, Zero-shot, RAG-based prompts 🔹 Quantization: AWQ, GPTQ, GGUF, GGML 🔹 RAG Systems: LangChain, LlamaIndex, ChromaDB, FAISS, Pinecone, Qdrant 🔹 Data Pipeline: Synthetic dataset generation, LLM evaluation frameworks 🔹 LLM Deployment: AWS Sagemaker, RunPod, GCP AI Platform, Vercel AI SDK 🖥️ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗦𝗸𝗶𝗹𝗹𝘀: 🔹 Proficient in Node.js, Express.js, Python, Django, Flask, AWS Lambda for backend API. 🔹 Experienced with relational & NoSQL databases: MySQL, PostgreSQL, MongoDB, Firebase, Firestore. 🔹 Skilled in Python FastAPI, REST API, GraphQL API development, and database schema design. 🔹 Knowledgeable in Redis, Docker, Kubernetes, AWS EC2, S3, Nginx for scalable infrastructure. 🔹 Experienced with Nest.js for enterprise-grade server-side applications. 🔹 LangChain, LangServe, LangSmith, HuggingFace, Transformers for AI/LLM integrations. 🔹 Vector Databases: Chroma, FAISS, Pinecone, Qdrant for RAG pipelines. 🔹 Low-code AI tools: Flowise AI, LangFlow, StackAI for rapid prototyping. 🔹 Familiar with Celery task queues, testing frameworks (Pytest, Unittest), and automation tools like Selenium. 🌐 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 𝗦𝗸𝗶𝗹𝗹𝘀: 🔹 Proficient in TypeScript, Redux Toolkit, Tailwind CSS with Next.js for high-performance frontends. 🔹 Skilled in building Progressive Web Apps (PWA) and Single Page Applications (SPA). 🔹 Expert in Vue.js, Nuxt.js, React.js, Next.js, HTML5, CSS3, React Native for responsive and cross-platform UIs. 🛠️ 𝗧𝗼𝗼𝗹𝘀 & 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: 🔹 Skilled in Python ML libraries: Scikit-learn, Numpy, Pandas, Matplotlib, Seaborn. 🔹 Familiar with OpenAI APIs, Whisper, GPT models, ChatGPT integration, and AI chatbot deployment. 🔹 Experienced with AWS (Lambda, S3, EC2, Sagemaker), Git/GitHub, and Linux environments (Ubuntu, CentOS). 🌟 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗔𝗜 & 𝗟𝗟𝗠 𝗦𝗸𝗶𝗹𝗹𝘀: 🔹 AI Agents / Voice Assistants: CrewAI, AutoGen, Amazon Polly, Deepgram, Rasa AI. 🔹 Open-Source LLMs: LLaMA 3, Mistral 7B, Mixtral 8×7B, Falcon, Gemma. 🔹 Inference Optimization: vLLM, TGI, TensorRT-LLM for high-speed deployments. 🔹 Prompt Engineering: Multi-turn, Few-shot, Zero-shot, RAG-based prompts. 🔹 Quantization: AWQ, GPTQ, GGUF, GGML for efficient LLM deployment. 🔹 LLM Fine-tuning: PEFT, LoRA, QLoRA, RLHF, DPO with Unsloth, Axolotl, H My expertise spans both frontend and backend technologies, as well as a variety of tools and additional skills that enable me to deliver comprehensive solutions. I am dedicated to providing high-quality, efficient solutions that cater to the unique needs of each project. My diverse skill set allows me to approach challenges from multiple angles, ensuring robust and innovative solutions. Warm regards, Atul Kumar

22+ years of experience working with relational databases, especially PostgreSQL, Oracle, and MySQL. More than seven years of experience in data warehousing. Experience in designing and deploying Big Data technologies such as Kafka and Storm. Experience includes Database Design Data Modelling (Transactional & Dimensional schemas) Design and Implementation of Extraction, Transformation, Load (ETL) process Database Performance Optimization Database Administration OLAP Reporting Query optimization Author of the book "PostgreSQL for Data Architects." Experience with TimescaleDB Data migration projects for clients like GE Experience with GCP, AWS, and Azure Infrastructure as code - Terraform AWS RDS

Redis Expert | Node.js Architect | AWS Certified | 100% Job Success | Top Rated Plus | Database specialist | Kubernetes | Product Principle Engineer I build high-performance, scalable back-end systems trusted by startups and enterprises across Europe and the US. With 9+ years of hands-on experience, I specialize in Redis architecture (caching, pub/sub, streams, RedisSearch), Node.js microservices, and cloud-native solutions on AWS. What I bring to your project: - Redis mastery: designing low-latency caching layers, real-time leaderboards, session management, and full-text search with RedisSearch - Node.js & TypeScript: building RESTful and GraphQL APIs, gRPC services, and event-driven architectures with Kafka - AWS Certified: EC2, Lambda, RDS, ElastiCache, S3, CloudFront, ECS, architecting for reliability and cost-efficiency - Database expertise: MongoDB (DBA level), PostgreSQL, MySQL schema design, query optimization, indexing - DevOps-ready: Docker, Kubernetes, CI/CD pipelines, NGINX, PM2 - AI & RAG pipelines: integrating LLMs with vector databases for intelligent search and retrieval systems - Fantasy Sports platforms: built real-time scoring engines handling millions of concurrent users What sets me apart: - 100% Job Success Score with Top Rated Plus badge on Upwork - AWS Certified Developer with proven production deployments - Clear, proactive communication, I keep you informed at every stage - Timezone-flexible: regularly working with European (CET/GMT) and US (EST/PST) clients - Clean, well-documented code with thorough testing I've delivered solutions for fintech, fantasy sports, e-commerce, and SaaS platforms. Whether you need a Redis performance overhaul, a scalable Node.js API, or a full-stack cloud architecture, I deliver results that matter to your business. I overlap 2.5 hours with UK morning, 4.5 hours with US Eastern late-evening, and full overlap with UAE, Singapore, and Africa timezones. I reply within 4 hours during my work day and give estimates before starting. Risks named upfront, not after they hit. I believe in delivering value first and building long-term trust before focusing on payments. Let's build something great together.

Chrome Extension & SaaS Developer Hello! 👋 I'm a professional Chrome extension developer with 8+ years of experience building 30+ extensions for clients worldwide. I specialize in custom Chrome extensions, browser automation, AI-powered assistants, and SaaS web applications. Whether you need to automate workflows, extract data, integrate AI, or build a full SaaS platform—I turn your ideas into reliable, high-performance solutions. What I Build Chrome Extensions Web scraping and data extraction Browser automation (forms, clicks, navigation) Productivity tools and content aggregators Manifest V3 compliant & future-ready AI-Powered Solutions ChatGPT and LLM integrations Intelligent content summarization Smart automation based on user behavior Context-aware chatbots and assistants SaaS & Web Applications Full-stack SaaS platforms (MVP to scale) Secure admin dashboards with analytics Real-time features and live updates User management and permissions systems Integrations & APIs Payment gateways (Stripe, Razorpay, PayPal) Google Sheets, CRM, and third-party APIs Webhook automations and real-time workflows OAuth2 and secure authentication Tech Stack Frontend: JavaScript, TypeScript, React, Vue, Angular Backend: Node.js, Express, Firebase, AWS Databases: MongoDB, MySQL, PostgreSQL AI & ML: OpenAI APIs, LangChain, Pinecone, GPT integrations Tools: Chrome APIs, Manifest V3, Webhooks, Google Sheets API Key Achievements ✅ 100+ Chrome Extensions shipped and maintained ✅ AI Integration — ChatGPT and LLM features in production ✅ Scalable SaaS Platforms — from MVP to enterprise scale ✅ Secure Dashboards — analytics, user control, real-time data ✅ Payment Systems — Stripe, Razorpay, PayPal implemented ✅ Data Scraping — complex, dynamic websites automated ✅ Manifest V2 → V3 Migration — legacy extensions modernized My Promise Clean Code — Maintainable, well-documented, best practices Fast Delivery — Quick turnaround without compromising quality Reliable Results — Thoroughly tested, production-ready solutions Ongoing Support — Updates, bug fixes, and optimization included Let's Get Started Ready to build something great? I'd love to hear about your project. Send me a message with: What you want to build (extension, SaaS, automation tool) Your main goals and timeline Any specific features or integrations needed Looking forward to turning your idea into a high-performance tool! 🚀