You will get Python Backend Development | FastAPI Django Flask | AI Automation
Top Rated
Top Rated
Project details
Most AI automation projects fail not because of bad code - but because the architecture wasn't thought through before development started. Wrong framework choices, poorly designed APIs, and automation workflows that break under load are almost always structural problems, not execution problems.
With 8+ years of Python development, Top Rated Plus status, and 20+ projects delivered across FastAPI, Django, LangChain, n8n, and RAG pipelines, I build complete backend systems and intelligent automation workflows - not isolated scripts. Whether it's a SaaS backend, an LLM-powered document intelligence system, an n8n workflow connecting your business tools, or a Go High Level CRM automation, I own the full delivery from architecture through to production.
You get a clean, documented, production-ready Python system your team can maintain long after delivery.
Purchase this project and share your requirements - I'll be in touch within 24 hours to align on scope and get started.
With 8+ years of Python development, Top Rated Plus status, and 20+ projects delivered across FastAPI, Django, LangChain, n8n, and RAG pipelines, I build complete backend systems and intelligent automation workflows - not isolated scripts. Whether it's a SaaS backend, an LLM-powered document intelligence system, an n8n workflow connecting your business tools, or a Go High Level CRM automation, I own the full delivery from architecture through to production.
You get a clean, documented, production-ready Python system your team can maintain long after delivery.
Purchase this project and share your requirements - I'll be in touch within 24 hours to align on scope and get started.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included $400
These options are included with the project scope.
$400
- Delivery Time 3 days
- Number of Revisions 2
- Number of Pages 1
- Design Customization
- Content Upload
- Responsive Design
- Source Code
1 review
(0)
(1)
(0)
(0)
(0)
This project doesn't have any reviews.
AF
Alex F.
Jun 17, 2026
Backend work on mobile app
About Nikunj
Python Developer | FastAPI, Django | LangChain, RAG | AI Automation
100%
Job Success
Surat, India - 9:25 am local time
🏆 𝟴+ years as a Python Developer building FastAPI, Django, and LangChain systems
📊 𝟮𝟬+ AI automation projects shipped in production at 3 named employers
🎯 Specialty: FastAPI backends, LangChain agent workflows, RAG pipelines, Go High Level
⚡ Recently delivering on Upwork: $40K in Python Developer engagements currently in progress
💼 𝗥𝗶𝘀𝗶𝗻𝗴 𝗧𝗮𝗹𝗲𝗻𝘁 on Upwork individually, backed by Madhav Technologies, a 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 agency with 𝟯,𝟲𝟱𝟯 Upwork hours
✅ Full-time Python Developer, AI automation focus, no split attention on other stacks
⭐⭐⭐⭐⭐ "Nikunj built our customer support RAG pipeline on FastAPI and LangChain. We went from prototype to production in about six weeks, handling real support volume with the accuracy we needed. He flagged the edge cases we would have hit in month three upfront so we could plan around them." (Marcus T., SaaS founder)
As a full-time Python Developer with 8+ years of production experience, I build AI automation systems on FastAPI, Django, LangChain, and n8n. Most Python Developer posts get bid by generalists who treat LangChain as a demo library and RAG as a copy-paste pipeline. I treat the retrieval boundary and the generation boundary as separate architectural decisions, because that is what determines whether your AI automation holds up or bleeds cost in month two.
🔶 Python Developer at 𝗩𝗲𝗿𝗶𝗲𝘁𝘆 𝗜𝗻𝗰 (Jan 𝟮𝟬𝟮𝟱 to present): FastAPI backend systems, LangChain agent workflows, RAG integrations for enterprise clients
🔶 Python Developer at 𝗚𝗻𝗮𝗻 𝗜𝗻𝗳𝗼𝘁𝗲𝗰𝗵 (𝟮𝟬𝟮𝟮 to 𝟮𝟬𝟮𝟰): Django and Flask applications, AI automation pipelines, CRM integrations via Go High Level
🔶 Python Developer at 𝗞𝗿𝗶𝘀𝗵𝗶𝘃 𝗜𝗻𝗳𝗼𝘁𝗲𝗰𝗵 (𝟮𝟬𝟭𝟳 to 𝟮𝟬𝟮𝟮): foundational Python Developer work across Django, Flask, and REST API services for SaaS clients
🔶 Upwork engagements currently in progress: 𝟮 active AI automation contracts totaling $𝟰𝟬𝗞+, FastAPI + LangChain + RAG stack
𝗪𝗛𝗔𝗧 𝗜 𝗗𝗢
✅ FastAPI Backend Development: Python Developer work on FastAPI services with async patterns, dependency injection, Pydantic models, and OpenAPI documentation
✅ Django + Flask Backend Systems: full-stack Python Developer builds on Django or Flask with ORM models, REST API endpoints, authentication, and admin interfaces
✅ LangChain Agent Workflows: Python Developer systems orchestrating LLM calls, tool integrations, state management with LangGraph, and human-in-the-loop controls
✅ RAG Pipeline Engineering: retrieval-augmented generation with FastAPI, vector database integration (Pinecone, Weaviate, Chroma), embedding strategy, Python Developer delivery
✅ AI Automation with n8n + Python: workflow automation combining n8n visual pipelines with Python Developer custom nodes for complex business logic
✅ Go High Level CRM Automation: Python Developer integrations with GHL APIs, webhook handlers, custom automation workflows for sales and marketing teams
✅ LLM API Integration: OpenAI, Claude, and Gemini API orchestration, prompt engineering, token cost optimization, Python Developer wiring to business systems
𝗪𝗛𝗢 𝗜 𝗪𝗢𝗥𝗞 𝗪𝗜𝗧𝗛
🎯 Founders and CTOs who need a full-time Python Developer on FastAPI, Django, and LangChain, not a weekend contractor
🎯 SaaS teams building AI automation features where RAG accuracy and Python Developer code quality actually matter in production
🎯 Django-based SaaS products that need a Python Developer to add LangChain or RAG features without destabilizing the existing Django backend
🎯 Agencies subcontracting Python Developer work on LangChain, n8n, or Go High Level integrations where the delivery standard is high
🎯 Engagements of 4+ weeks minimum, 30+ hours per week, with a real Python Developer scope and not a 10-hour fix job
𝗠𝗬 𝗣𝗥𝗢𝗖𝗘𝗦𝗦
1. Architecture Review: 48-hour turnaround on a FastAPI service map, LangChain agent flow, and RAG boundary decision, plus Python Developer scope estimate
2. Design: Python Developer data flow, retrieval boundary, generation boundary, and failure modes documented before code
3. Build: production FastAPI + LangChain + RAG code with tests, observability, and Python Developer handoff documentation
4. Deploy and Iterate: staged rollout on AWS or GCP, cost monitoring, AI automation refinement based on real usage
Send me a message or invite me to your Python Developer project. Free 48-hour architecture review for AI automation builds, no commitment required.
Steps for completing your project
After purchasing the project, send requirements so Nikunj can start the project.
Delivery time starts when Nikunj receives requirements from you.
Nikunj works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Architecture
I review your requirements, define the Python stack and AI tooling, plan the database and service structure, and map out the full backend or automation architecture before any code is written.
Development
I build the backend API in FastAPI, Django, or Flask, integrate LLM or RAG components using LangChain or LangGraph, set up n8n or Go High Level automation workflows, and connect all databases and third-party services.