I build and stabilize AI automation, agents, and full stack SaaS products that need to work reliably in production, not just in demos. I’ve shipped and scaled systems for founders from Y Combinator, Founders Factory, FutureLabs, and Republic of Work. Founders I’ve built with have gone on to raise €2M+, and my AWS/serverless work ranks in the top 0.2% for DevOps. A few results: ⚡ Multi-tenant SaaS with 28% faster integrations ⚡ Serverless system running under 200ms latency at 10K+ users ⚡ AI RAG system improving support efficiency by 45% ⚡ Next.js migration reducing hosting costs by 15% ⚡ SaaS MVPs shipped to production, with founders raising after launch A lot of products today get built quickly with Cursor, Lovable, Bolt, Claude Code, or an early freelance team. Then real users arrive. That’s when the problems show up: messy code, fragile backends, AI features that worked in the demo but fail in production, scaling bottlenecks, unreliable automations, and rising AWS costs. I help turn that into a production-ready system with clean architecture, a solid backend, reliable AI behavior, and room to scale. I also build new products properly from idea to MVP to production. What I can help with: * AI agents, chatbots, and AI voice agents * Workflow automation and business process automation using n8n, Make, Zapier, and APIs * Production RAG, LLM, and knowledge-based systems * Full-stack SaaS development with Next.js, React, Node.js, TypeScript, JavaScript, and Python * Backend systems, REST APIs, third-party integrations, and multi-tenant architecture * PostgreSQL, Supabase, Stripe, AWS, serverless, performance, and cost optimization * Stabilizing fragile or AI-built MVPs before they become technical debt How I work: We can start small. Send me your app URL, repo, or brief with a short note on the problem. I’ll review the likely bottlenecks, scaling risks, reliability issues, and what I would fix first before you commit to anything bigger. From there, I can take technical ownership of the build: architecture, backend, integrations, AI systems, delivery, and the parts that usually stall. I work best with: * Funded startups starting with or moving beyond MVP * SaaS teams hitting scaling, reliability, or cost issues * Founders who want a senior engineer to take ownership, not just ship tickets I’m probably not the right fit if you’re looking for the cheapest possible build. I’m a fit when the product matters, users depend on it, and it has to work. Tech I work with often: Python, JavaScript, TypeScript, React, Next.js, Node.js, AWS, Supabase, PostgreSQL, Stripe, serverless, OpenAI, Claude, Gemini, RAG, LangChain, AI agents, n8n, Make, Zapier, automation, and APIs. If your product was built fast and now needs to work properly, or you want it built right from the start, send me the repo, app, or brief, and I’ll tell you what I’d fix first.

I am a Python Developer and Automation Specialist with over 7 years of experience helping businesses streamline operations, automate repetitive tasks, and transform raw data into actionable insights. I specialize in building scalable automation systems, data-driven solutions, and custom web-based tools that improve efficiency, reduce manual effort, and support better decision-making. Core Expertise * Python automation and scripting * Web scraping and data extraction * API integration and backend automation * Data analysis and reporting using Python, SQL, and Excel * Workflow automation for business processes * Google Apps Script and VBA automation * Development of web applications and internal tools * Chrome extension development for productivity and automation Professional Experience Over the past 7+ years, I have delivered a wide range of automation and data-focused solutions across different industries, including: * Building automated data collection systems from websites and APIs * Designing end-to-end workflow automation for businesses and startups * Creating custom dashboards for real-time reporting and analytics * Developing Excel and Google Sheets automation systems using VBA and Apps Script * Writing Python scripts for processing, cleaning, and analyzing large datasets * Integrating third-party APIs into business workflows * Developing lightweight web applications and internal business tools My solutions are focused on reliability, scalability, and usability, ensuring they work efficiently even for non-technical users. My Working Approach I focus on solving real business problems rather than just writing code. My process includes understanding: * Current workflow challenges * Time-consuming manual processes * Opportunities for automation and optimization Then I deliver solutions that are: * Clean and maintainable * Performance optimized * Easy to integrate into existing systems * Designed for long-term use and scalability Let’s Work Together If you need help with Python automation, data processing, web scraping, API integration, or building custom tools and workflows, I can help you create efficient and reliable solutions tailored to your needs. My goal is to help you save time, reduce manual work, and improve productivity through automation and smart system design.

Hi, I'm highly responsive and excellent at communication, ensuring smooth collaboration and timely updates. With over 7 years of experience building high-performance, scalable web and cross-platform applications. I’ve completed 50+ projects, reducing development costs by up to 40% for my clients! With expertise in modern languages, I deliver quality work that pays off. 🔹 Tech Stack & Expertise 🌍 Frontend: React.js, Next.js, Vue.js, Tailwind CSS, Bootstrap, jQuery, JavaScript, PHP 🛠 Backend: Node.js, Django, Flask, FastAPI, Python, TypeScript, GrapeJS, Odoo, AngularJS 📱 Hybrid Apps: React Native, Flutter, Ionic, Cordova 🗄 Databases & Cloud: PostgreSQL, MySQL, MongoDB, GraphQL, ElasticSearch, AWS, Microsoft Azure 🛠 DevOps & Project Management: Docker, GitHub, GitLab, Bitbucket, Jira, Trello, VS Code 💡 Why Work With Me? ✅ Upwork-Approved Freelancer – Trusted by businesses worldwide ✅ Expert in Frontend & Backend – Next.js, React, Node.js, Python, TypeScript & more ✅ Scalable & Optimized Solutions – Fast-loading, secure, and maintainable applications ✅ Agile & Collaborative – Strong problem-solving skills and clear communication ✅ On-Time Delivery & Support – Dedicated to ensuring success beyond project completion 🏆 Industries I've Worked With: 💼 SaaS | 🏡 Real Estate | 📱 Mobile Apps | 🤖 AI & ML | 📊 CRM & HRM 📩 Let’s Build Something Amazing! I’m available full-time (9 AM - 7 PM EST/CST) and open to short- & long-term projects. Let’s discuss how I can bring your vision to life! Send me an invite, and let’s talk.

Senior API & Backend Developer | API Integrations, Automation & ETL I help businesses build, integrate, and automate APIs that are secure, scalable, and production-ready. With 10+ years of experience, I have delivered complex backend and integration projects for startups, agencies, and enterprises. 🔹 What I can do for you - Design & develop RESTful APIs - Third-party API integrations (payments, CRMs, analytics, maps) - ETL pipelines & data synchronization - Workflow automation to reduce manual work - SSO & authentication systems - Healthcare & enterprise-grade integrations 💼 Core Expertise - API & Integrations - REST APIs, Webhooks, Social Login - Stripe, Braintree, Mailchimp - Google Maps, Mapbox, GeoJSON, Leaflet - Automation & ETL - Zapier, Make.com, n8n - MuleSoft, ServiceNow, Dell Boomi - Power Automate, UiPath - Healthcare APIs - HL7, FHIR, SMART - EPIC, Athena, eClinicalWorks - HIPAA-compliant integrations - SSO & Security - OAuth 2.0, OpenID Connect - SAML 2.0, Okta, Azure Entra ID - AWS Cognito, Descope, Stytch Backend & Databases - Python (Django, Flask, FastAPI) - Node.js, PHP, Laravel - MySQL, PostgreSQL, MongoDB, DynamoDB - Cloud & DevOps - AWS, GCP, Serverless (Lambda) - Docker, Kubernetes ⭐ Why clients work with me ✔ Clear communication & quick response ✔ Production-ready, well-documented code ✔ Long-term support mindset ✔ 100% payment only after work is completed If you need a reliable backend or API expert who understands real business workflows, let’s connect and discuss your project. Himanshu Panchal

I build production-grade AI systems powered by LLMs, RAG pipelines, autonomous agents, and scalable backend infrastructure. I have over 8 years of engineering experience, I specialize in designing and deploying AI applications that combine strong architecture, reliable retrieval systems, intelligent workflows, and production-ready backend engineering. My work spans healthcare, legal tech, real estate, automation platforms, voice AI, CRM systems, and SaaS products where performance, scalability, and maintainability matter as much as the AI itself. I work across the full lifecycle of AI product development from system architecture and retrieval pipeline design to model integration, backend infrastructure, deployment, optimization, and long-term scalability. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝐂𝐎𝐑𝐄 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✔ Retrieval-Augmented Generation (RAG): end-to-end pipeline design using LangChain, LlamaIndex, vector databases (Pinecone, ChromaDB, FAISS, Weaviate), hybrid semantic search, and reranking for high-accuracy document retrieval ✔ LLM Application Development: OpenAI API (GPT-4o, GPT-4 Turbo), Claude API, Gemini, structured outputs, function calling, streaming responses, token optimization, and prompt engineering ✔ Autonomous AI Agents: multi-agent architectures using LangGraph, CrewAI, and AutoGen; tool-calling agents, memory management, and human-in-the-loop workflows ✔ Production Python Backends: FastAPI microservices with async processing, JWT authentication, rate limiting, Redis caching, and full AWS deployment (EC2, Lambda, S3, RDS) ✔ Machine Learning Pipelines: NLP, document classification, predictive analytics, and deep learning using PyTorch, TensorFlow, Hugging Face, and scikit-learn ✔ Voice AI & Multimodal Systems: voice-enabled conversational agents, Whisper-based transcription, ElevenLabs integration, and real-time audio processing ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝐏𝐑𝐎𝐃𝐔𝐂𝐓𝐈𝐎𝐍 𝐖𝐎𝐑𝐊 𝐓𝐇𝐀𝐓 𝐈 𝐇𝐀𝐕𝐄 𝐁𝐔𝐈𝐋𝐓 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✔ TripTalk (triptalk.app): Architected and deployed a full-stack RAG-powered travel assistant featuring voice interaction, contextual memory, personalized itinerary generation, and structured LLM outputs. Live in production. ✔ EEG Machine Learning Platform: Delivered a multi-model ML proof-of-concept on EEG neuroscience data, building and benchmarking several classifiers in parallel. Long-term engagement: 810+ hours, $36,000+, 5-star review. ✔ Legal RAG Chatbot: Engineered a high-accuracy legal document search assistant using OpenAI embeddings, vector database retrieval, and reranking. Dramatically reduced manual legal research time for law firm clients. ✔ Real Estate CRM AI: Integrated a natural language property query engine directly into an existing CRM platform, enabling agents to search listings and client records conversationally in real time using FastAPI and LLM function calling. ✔ AI Medical Chatbot: Built a domain-specific Q&A assistant for healthcare providers using structured knowledge retrieval, guardrails for medical safety, and OpenAI API integration. ✔ Futures Trading Backtesting Engine: Developed a PyTorch/TensorFlow-powered backtesting platform for algorithmic trading strategies. Multi-year engagement with 5-star client feedback. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝐓𝐄𝐂𝐇𝐍𝐈𝐂𝐀𝐋 𝐒𝐓𝐀𝐂𝐊 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Languages Python, Node.js, Laravel/ PHP, TypeScript, SQL AI / LLMs OpenAI API, Claude API, Gemini, LangChain, LlamaIndex, LangGraph RAG & Search Pinecone, ChromaDB, FAISS, Weaviate, pgvector, hybrid search, reranking Agents CrewAI, AutoGen, LangGraph, MCP (Model Context Protocol) ML Frameworks PyTorch, TensorFlow, Hugging Face, scikit-learn, spaCy, NLTK Backend FastAPI, Django, Flask, Redis, BullMQ, PostgreSQL, MongoDB Cloud & DevOps AWS (EC2, Lambda, S3, RDS, SageMaker), Docker, GitHub Actions Voice / Audio Whisper, ElevenLabs, Deepgram, real-time audio pipelines ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ I focus on building AI systems that are scalable, maintainable, cost-efficient, and ready for real production usage. Whether you are developing an AI SaaS platform, intelligent document assistant, automation system, AI-powered CRM, or custom LLM application, I can help architect and build the underlying infrastructure required to take it from concept to deployment.

Python Django full stack developer specializing in SaaS MVPs and fintech platforms - 14 production-ready SaaS MVPs delivered in 4 to 6 weeks across fintech, expense management, and AI-powered web applications. I build scalable web applications that go from idea to working product fast: Django REST databases, and OpenAI API integrations. My focus is on clean architecture that's easy to maintain and extend - not overengineered, not held together with duct tape. My core work covers full stack SaaS development from MVP to production, multi-tenant SaaS architecture, Django and FastAPI backends with role-based access and authentication, subscription and payment integration, React and Node.js frontends, AI integrations using OpenAI API and Google Document AI, and cloud infrastructure on AWS with Docker. How I work: I start by mapping exact requirements and proposing a tech stack that fits your timeline and budget. I move fast, communicate clearly, and deliver working software - not just code. Every project includes documentation and handover so your team can take ownership after launch. Recent work: Built an AI-powered check scanning feature for Spendbase, a B2B expense management SaaS platform based in Delaware. Using Python and Google Document AI, we automated data extraction from paper checks and integrated it into their existing expense workflow - delivered on a tight deadline with full documentation and zero disruption to the live platform. If you need a production-ready SaaS MVP, a Django backend with AI integration, or a reliable Python full stack partner for the long term, let's talk.

I am a backend engineer with 7+ years of experience building fast, reliable, and scalable systems. I specialize in Python, FastAPI, Django, AI integration, and workflow automation, helping teams ship production-ready products that perform under real load. 🛠 What I Can Do for You • Backend development: FastAPI, Django, microservices, REST & GraphQL APIs • AI integration: LLMs, workflow automation, predictive analytics, chatbots • Automation & Ops: Data pipelines, task scheduling, background jobs, internal tools • Performance & reliability: Optimized DB schemas, caching strategies, async Python • DevOps & Cloud: Docker, Kubernetes, CI/CD pipelines, AWS/GCP deployment 📂 Experience Highlights • Built a digital signing system with AI-assisted workflows, streaming responses, persistent chat history, and secure messaging, serving 10k+ daily users • Delivered backend workflows for agent onboarding, device registration, payments, and inventory, with automated user and organization management • Developed subscription & payment modules with credit billing, monthly/annual plans, and fully automated admin processes • Managed backend architecture for payments, patient management, and integrations, ensuring 99.9% uptime and smooth background job processing • Migrated production microservices to FastAPI, improving performance by 40%, and optimized database schemas, deployment pipelines, and automation 🏢 Industries I’ve Worked With • Fintech: payments, subscriptions, secure APIs • SaaS: scalable platforms, internal automation • Healthcare: patient management, HIPAA-compliant systems • IoT: device workflows, real-time data pipelines • Enterprise Platforms: high-performance backend systems 📞 Why Work With Me • Build production-ready systems • Integrate AI to streamline workflows • Automate operations and pipelines • Improve performance and scalability • Respond fast, deliver clean code, and make your backend work smarter, not harder • Available for immediate projects and long-term collaborations Keywords: Python Backend Developer | FastAPI | Django | REST API Development | Microservices Architecture | AI Integration | Workflow Automation | Background Jobs & Task Scheduling | Async Python | Cloud Deployment (AWS / GCP) | CI/CD & DevOps | Database Optimization & Design | Payment & Subscription Backend | ETL & Data Pipelines | Webhook & Secure API Integration

I build AI chatbots and AI assistants that answer from your real business data with accuracy, speed, and reliability. I help businesses create custom AI chatbots, AI assistants, and RAG-powered knowledge systems that deliver accurate, context-aware answers using real company data such as PDFs, SOPs, help centers, websites, CRMs, ticketing systems, and SQL databases. My focus is not just on making a chatbot respond. I build solutions designed for accuracy, reliability, scalability, and real business use. This includes the full implementation process: architecture planning, retrieval setup, data source integration, prompt optimization, hallucination reduction, performance monitoring, and ongoing improvement after launch. ✅ AI Chatbot & AI Assistant Solutions I Can Build: ● Customer support chatbots for websites, apps, and WhatsApp ● Internal company assistants for HR, SOPs, and employee helpdesks ● Document chatbots for PDFs, manuals, contracts, and policies ● Knowledge base and FAQ automation ● Email and ticket summarization assistants ● Database-aware chatbots that answer from structured data ● AI assistants connected to APIs, CRMs, and internal tools ✅ Core Expertise: ● RAG architecture ● LangChain and LlamaIndex ● OpenAI API integration ● Embeddings and vector search ● Pinecone, Weaviate, FAISS, and Chroma ● Hybrid search and re-ranking ● Prompt engineering and context optimization ● Hallucination reduction ● RAG evaluation and monitoring ● LangSmith, Langfuse, and performance tracking I design chatbot systems for accurate retrieval, relevant answers, and stable production performance. This includes optimizing chunking, context selection, retrieval quality, and output evaluation to improve accuracy and control costs over time. Clear communication and regular progress updates are always a priority. I build practical, maintainable AI solutions aligned with real business goals.

𝟔𝟎+ 𝐒𝐚𝐚𝐒 𝐌𝐕𝐏𝐬, 𝐀𝐈 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧𝐬, 𝐚𝐧𝐝 𝐟𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐛𝐮𝐢𝐥𝐝𝐬 | 𝐌𝐨𝐧𝐞𝐲 𝐛𝐚𝐜𝐤 𝐠𝐮𝐚𝐫𝐚𝐧𝐭𝐞𝐞 | 𝐍𝐞𝐱𝐭.𝐣𝐬 + 𝐑𝐞𝐚𝐜𝐭 + 𝐏𝐲𝐭𝐡𝐨𝐧 + 𝐃𝐣𝐚𝐧𝐠𝐨 | 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐟𝐨𝐫 𝐬𝐭𝐚𝐫𝐭𝐮𝐩𝐬 𝐚𝐧𝐝 𝐠𝐫𝐨𝐰𝐢𝐧𝐠 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬𝐞𝐬 𝗥𝗲𝘃𝗲𝗻𝘂𝗲 𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝗻𝗴 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝗜’𝘃𝗲 𝗯𝘂𝗶𝗹𝘁 ➔ B2B SaaS and subscription products ➔ FinTech, trading, and payment systems ➔ AI-powered apps, agents, and automation tools ➔ Healthcare, pharma, and HIPAA-aware platforms ➔ eCommerce, marketplaces, and multi-vendor systems ➔ AdTech, marketing, and lead-gen platforms ➔ EdTech and learning management systems ➔ Real estate and booking platforms ➔ Internal tools, admin panels, and data dashboards 𝐖𝐡𝐚𝐭 𝐈 𝐛𝐮𝐢𝐥𝐝 ➔ Full-Stack Development: Next.js, React, React Native, Python, Django, FastAPI, Node.js, Express.js, NestJS ➔ AI App Development: AI Agents, RAG systems, Chatbot Development, LLM Integrations, Generative AI, NLP, Computer Vision with Claude, OpenAI API, GPT-5 API, LangChain ➔ AI Automation connecting LLMs to your data, CRMs, and workflows (Salesforce, Microsoft Dynamics CRM, Zoho, Pipedrive) ➔ API Development and API Integration: REST API, GraphQL, WebSockets, Webhook Integration, Stripe API, Twilio, with secure User Authentication (JWT, OAuth, Clerk) ➔ Cloud Architecture, Database Design, and Database Architecture built for real traffic 𝐌𝐞𝐚𝐬𝐮𝐫𝐚𝐛𝐥𝐞 𝐜𝐥𝐢𝐞𝐧𝐭 𝐨𝐮𝐭𝐜𝐨𝐦𝐞𝐬 ✔ End-to-end ownership: from API to UI, one developer, no handoff gaps ✔ Production-grade systems: not prototype code that breaks at scale ✔ Shipped SaaS MVPs from idea to launch on real timelines ✔ Added AI Agents and RAG into live platforms already serving users ✔ Systems handling 100K+ users and high-traffic load ✔ Scalable Python and Node.js backends built for long-term growth ✔ Maintainable APIs, dashboards, and internal tools your team can actually run ✔ Clear, direct communication: you always know where things stand 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 & 𝐀𝐈 𝐓𝐨𝐨𝐥𝐬 • Next.js | React | React Native | Vue.js | TypeScript | JavaScript | Tailwind CSS | Material UI | Ant Design | WebGL • Python | Django | FastAPI | Flask | Node.js | Express.js | NestJS • PostgreSQL | MySQL | MongoDB | Redis | Supabase | ClickHouse • REST API | GraphQL | WebSockets | API Integration | Webhooks • Claude | OpenAI API | GPT-5 | LangChain | RAG | Generative AI | NLP | Computer Vision | TensorFlow | Dialogflow • AI Agents | Machine Learning | Deep Learning | LLM Prompt Engineering | AI Automation • AWS (EC2, S3, RDS, Fargate, CloudFront) | Google Cloud | Docker | Kubernetes | Terraform • GitHub Actions | Nginx | Cloudflare | Prometheus | Grafana | CI/CD | Infrastructure as Code • Stripe | Twilio | Shopify | Salesforce | ElevenLabs | Payment Gateway Integration • Git | GitHub | Vercel | Figma | Agile | Highcharts | Chart.js | Data Visualization 𝗧𝗶𝗿𝗲𝗱 𝗼𝗳 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀 𝘄𝗵𝗼 𝗼𝘃𝗲𝗿𝗽𝗿𝗼𝗺𝗶𝘀𝗲 𝗮𝗻𝗱 𝘂𝗻𝗱𝗲𝗿𝗱𝗲𝗹𝗶𝘃𝗲𝗿? 𝗟𝗲𝘁'𝘀 𝗵𝗮𝘃𝗲 𝗮 𝗱𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁 𝗰𝗼𝗻𝘃𝗲𝗿𝘀𝗮𝘁𝗶𝗼𝗻📩

I am a proficient Django developer with hands-on experience in building scalable backend systems, REST APIs, and automation-driven applications. I specialize in: Django & Django REST Framework API design and third-party integrations Webhooks, schedulers, and background jobs Database design (PostgreSQL / MySQL) AI/LLM integrations and automation workflows I have built production-ready applications involving automation, external APIs, admin panels, and real-time data processing, with a strong focus on clean logic and reliability. I prefer execution-focused work, clear requirements, and measurable outcomes. I’m comfortable working with tight deadlines and delivering working features with regular progress updates.