Need a production-ready AI system — RAG pipeline, LLM integration, or intelligent automation? I build full-stack AI applications with Python and Next.js that go live, not just demos. 6+ years, $50K+ earned on Upwork, Top Rated Plus.
I sit at the intersection of AI engineering and full-stack development — which means I don't just wire up an API call and call it an AI product. I design the data pipeline, the retrieval layer, the LLM orchestration, and the frontend interface as a single cohesive system. Most clients come to me after a previous developer delivered a fragile prototype. I deliver production systems.
My core stack: Python, FastAPI, LangChain, RAG, LLM fine-tuning, Next.js, React, Node.js, PostgreSQL, MongoDB, AWS, Azure.
Here is what I build:
Full-Stack Apps — Next.js + React frontends connected to AI-powered backends
AI Agents — WhatsApp bots, voice agents, inbound/outbound call agents, customer support automation
RAG Systems — document Q&A, PDF + SQL retrieval, enterprise knowledge bases
LLM Integrations — OpenAI, Anthropic, fine-tuning, prompt engineering, model evaluation
Backend APIs — FastAPI, REST, GraphQL, scalable Python microservices
AI Data Pipelines — ETL, scraping, clustering, vector search, resume parsing
Automations — n8n, Zapier-style workflows, social media automation
Proofs
Top Rated Plus on Upwork (top 3% of talent)
100% Job Success Score
Zapier Certified Expert | Make, n8n, Airtable integrations
Built an internal RAG chatbot at CION Investments — reduced document lookup time by ~60%
Built a voice booking platform at Yoderlay — cut booking time by ~40%
Delivered AI solutions across fintech, HR tech, hospitality, e-commerce, and recruitment
Send me a message describing your project. I respond within a few hours and can usually share a technical approach or a relevant portfolio example the same day.
EXPERTISE:
AI Automation | No-Code Development | Airtable | Zapier | Make | n8n | AI Agents | ChatGPT Integration | LLM Implementation | Workflow Automation | API Integration | Database Design | Digital Workers | Business Process Automation
API Integration
AI Chatbot
AI Development
AI Agent Development
AI Model Training
AI Model Development
Generative AI Prompt Engineering
Mobile App Development
Web Application
Python
Node.js
React
Make.com
Zapier
n8n
Airtable
WhatsApp
Jeel D.
Surat, India
$25/hr
4.3
139 jobs
8+ years of experience | Top Rated Plus Freelancer
𝗠𝗼𝘀𝘁 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝗮𝗿𝗲 𝗹𝗼𝘀𝗶𝗻𝗴 $50𝗞–$500𝗞+ 𝗶𝗻 𝗵𝗶𝗱𝗱𝗲𝗻 𝗼𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗶𝗻𝗲𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝗰𝗶𝗲𝘀, missed leads, manual workflows, slow response times, and disconnected systems.
𝗜 𝗯𝘂𝗶𝗹𝗱 𝗔𝗜/𝗠𝗟-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝘁𝗵𝗮𝘁 𝗲𝗹𝗶𝗺𝗶𝗻𝗮𝘁𝗲 𝗶𝘁, 𝗮𝗻𝗱 𝗿𝘂𝗻 𝗿𝗲𝗹𝗶𝗮𝗯𝗹𝘆 𝗮𝘁 𝘀𝗰𝗮𝗹𝗲.
I've worked with 25+ businesses across healthcare, SaaS, eCommerce, hospitality, construction, distribution, local services, and enterprise systems, building production-ready AI solutions that automate real workflows, not demos.
𝗥𝗲𝗮𝗹 𝗜𝗺𝗽𝗮𝗰𝘁 𝗔𝗰𝗿𝗼𝘀𝘀 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀
➞ Healthcare : Voice AI, clinical chatbots, medical transcription (NLP), patient engagement, appointment automation
➞ Distribution & Manufacturing : Document AI (OCR), order parsing, inventory automation, demand forecasting, analytics dashboards
➞ Hospitality & Local Services : AI booking systems, WhatsApp automation, conversational AI, lead conversion systems
➞ Construction & Real Estate : Data extraction, lead generation systems, workflow automation, CRM pipelines
➞ SaaS & Internal Tools : AI copilots, GPT-based apps, analytics dashboards, reporting systems, multi-agent architectures
𝗪𝗵𝗮𝘁 𝗜 𝗕𝘂𝗶𝗹𝗱
ClaudBot : AI assistant for conversations, workflows, and task automation
CoWork : internal AI workspace for team productivity and knowledge access
MoltBot : AI automation system for lead handling and business operations
Paperclip : document AI system for parsing, extraction, and validation
CrewAI-based systems : multi-agent workflows, task coordination, tool execution
RAG systems : knowledge base AI and semantic search across documents
NLP systems : text classification, entity extraction, summarization, intent detection
Chatbots : web, WhatsApp, and support automation
Voice AI : conversational systems and IVR automation
LLM pipelines : prompt design, tool calling, structured outputs
AI copilots : internal assistants for teams and operations
Workflow automation : APIs, CRM/ERP integrations, Zapier, Make, n8n
Document AI : OCR, PDF parsing, data extraction and validation
Data pipelines : ETL, real-time processing, structured data flows
Dashboards & analytics : reporting systems and insights generation
Predictive systems : recommendation engines and ML models
𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 & 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲
AI / ML & LLMs
OpenAI (GPT-4/4o), Claude, Gemini, Llama, DeepSeek, Qwen, Mistral, Hugging Face, Fine-Tuning, Embeddings, Vector Search, MCP, Function Calling
Agent Frameworks & AI Systems
LangGraph, LangChain, CrewAI, AutoGen, OpenAI Agents SDK, Hermes Agent Framework, Mastra, PydanticAI, Multi-Agent Systems, Agentic Workflows, Tool Calling, AI Copilots
AI Application Frameworks
Vercel AI SDK, Next.js AI Applications, AI Assistants, Streaming AI Interfaces, AI SaaS Development
RAG & Knowledge Systems
LlamaIndex, Haystack, Pinecone, Weaviate, Qdrant, ChromaDB, FAISS, Hybrid Search, Semantic Search, Knowledge Graphs
Voice AI & Conversational Systems
LiveKit Agents, Vapi, Retell AI, Bland AI, ElevenLabs, Whisper, Speech-to-Text (STT), Text-to-Speech (TTS), AI Voice Agents, IVR Automation
Computer Use & Browser Agents
Browser Use, Stagehand, Computer Use Agents, Web Automation Agents, Autonomous Workflows
Observability & Evaluation
LangSmith, LangFuse, Arize Phoenix, Prompt Evaluation, LLM Monitoring, AI Analytics
Automation & Integrations
n8n, Zapier, Make, REST APIs, Webhooks, HubSpot, Salesforce, WhatsApp API, Twilio, CRM/ERP Integrations
Backend & Infrastructure
Python, FastAPI, Django, Node.js, Docker, AWS, GCP, Azure, LiteLLM, Ollama, vLLM, Microservices, Serverless Architecture
Frontend
React, Next.js, TypeScript, Vercel
Databases & Data Engineering
PostgreSQL, MongoDB, Redis, Supabase, ETL Pipelines, Real-Time Data Processing, Analytics Pipeline
𝗛𝗼𝘄 𝗜 𝗪𝗼𝗿𝗸
Real workflows, not experiments
Fast build → quick iteration
Stable, scalable systems
Clear and direct communication
𝗪𝗵𝗲𝗻 𝗜'𝗺 𝗔 𝗚𝗼𝗼𝗱 𝗙𝗶𝘁
You want to automate business processes using AI/ML
You need chatbots, voice AI, or AI agents in production
You're building AI-powered products or internal tools
You want to scale without increasing manual work
𝗟𝗲𝘁'𝘀 𝗕𝘂𝗶𝗹𝗱
If you're looking to reduce manual work, build AI systems, or scale automation across your business, let's connect.
Keywords:
AI Backend Systems, Next.js developer, React developer, Full Stack Developer, AI Automation Engineer, AI Workflow Automation, Python developer, FastAPI developer, Django developer, n8n developer, n8n specialist, Make expert, Make Integromat, Zapier expert, Zapier automation, Airtable consultant, Airtable developer, Supabase specialist, Firebase developer, AI Chatbot developer, Voice Bot developer, Vapi AI integration, Retell AI developer, ElevenLabs Voice AI, AI MVP prototyping, Bolt developer, Lovable app, SaaS application developer
Artificial Intelligence
Machine Learning
Deep Learning
Chatbot Development
OpenAI API
Python
FastAPI
React
Automatic Speech Recognition
AI Text-to-Speech
Data Science
Node.js
Large Language Model
Generative AI
AI Agent Development
AI App Development
AI Model Development
AI Product Management
Generative AI Prompt Engineering
Claude
Yatharth D.
Surat, India
$20/hr
5.0
23 jobs
I go beyond writing code - I create tailored digital solutions that solve real business challenges, accelerate growth, and enable organizations to scale effectively in a competitive market.
With over 7+ years of hands-on experience, I specialize in designing, developing, and deploying high-performance AI-powered applications, scalable web and mobile platforms, and robust data engineering solutions.
My work combines clean architecture, strong data foundations, robust engineering, and innovative thinking to deliver solutions that are not only functional but also drive measurable business impact. From building intelligent AI systems to designing efficient data pipelines and analytics workflows, I focus on solutions that help businesses make smarter decisions and scale faster.
As a proactive team player and problem-solver, I thrive in fast-paced environments, ensure seamless project execution, and consistently exceed client expectations through clear communication and reliable delivery.
Tech Stack & Expertise
- AI & Machine Learning: Generative AI, LLMs, Prompt Engineering, Conversational AI
- Data Engineering: ETL/ELT Pipelines, Data Warehousing, Data Modeling, Data Lakes, Apache Airflow, Spark, Kafka, BigQuery, Snowflake, Data Migration, Reporting & Analytics
- Back-End: Python (Django, FastAPI, Flask), Node.js, Express.js, Java, C, C++
- Front-End: React.js, Redux, Next.js, Vue.js, Vuex, Angular, RxJS, TypeScript, Vite.js
- Mobile Development: React Native, Flutter, Hybrid Apps
- Cloud & DevOps: AWS, Google Cloud, Azure, Kubernetes, Docker, CI/CD (Jenkins, Azure DevOps)
- Databases: SQL (PostgreSQL, MySQL, MS SQL Server), NoSQL (MongoDB, Firebase)
- Collaboration & Tools: Git, GitHub, GitLab, Bitbucket, Jira, Trello, Confluence
- Best Practices: SOLID, TDD, UML, BPMN, Agile/Scrum
What You Can Expect
- Clear and timely communication
- High-quality, scalable, and maintainable code
- Efficient project execution with on-time delivery
- A reliable, long-term development partner
Whether you need an AI-driven product, a cloud-based platform, scalable APIs, high-performance front-end interfaces, or end-to-end data engineering solutions, I can help bring your vision to life.
Let’s discuss your project and make it happen..
Python
Web Development
Java
Machine Learning
Artificial Intelligence
Data Analysis
Data Science
TensorFlow
Raspberry Pi
Arduino
React
Node.js
Flutter
PHP
Full-Stack Development
Jatin S.
Gurugram, India
$45/hr
4.9
72 jobs
✅ Top 1% AI Engineer on Upwork
✅ $200K+ delivered in AI work
✅ All 5.00 ★★★★★ Feedback
✅ 100% Job Success
✅ 8,000+ hours delivered
✅ 10+ years building software
I build production-grade full stack applications with deep AI/ML capabilities baked in. Whether that's a GPT-4-powered SaaS, a RAG-based document intelligence platform, or a multi-agent backend powering real business logic, I ship systems that actually run in production.
My longest engagement: ~3,000 hours of full stack + AI development for a finance-industry client. Multi-year retention. 𝐓𝐡𝐚𝐭'𝐬 𝐰𝐡𝐚𝐭 "𝐬𝐞𝐧𝐢𝐨𝐫" 𝐦𝐞𝐚𝐧𝐬.
🎯 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝
✔ AI-Integrated Full Stack Apps: end-to-end products built with React/Next.js frontends, Python/Node.js backends, and LLM-powered features throughout
✔ LLM & Gen AI Features: GPT-4o, Claude, Gemini, function calling, tool use, structured outputs, and agentic reasoning layers
✔ RAG & Knowledge Systems: document chat, semantic search, and retrieval pipelines using Pinecone, Weaviate, and ChromaDB
✔ ML Model Integration: connecting trained models into production APIs, dashboards, and real-time pipelines
✔ AI SaaS MVPs: production-ready AI products designed for founders, shipped in 4–8 weeks
⚡ 𝐏𝐫𝐨𝐨𝐟 𝐈𝐭 𝐖𝐨𝐫𝐤𝐬
☑️ AI Voice Bot for Sales & Client Onboarding (VocaPitch)
☑️ LegalTech AI Assistant - Streamlined law-firm workflows with document automation + agentic review.
☑️ InstaLetter.ai SaaS Platform - Team Lead — Full AI MVP delivery;
☑️ n8n & Agentic Workflows engagement — 5.0★: "Great communication and professional team. A++ guys."
🛠 𝐓𝐨𝐨𝐥𝐬 𝐈 𝐀𝐜𝐭𝐮𝐚𝐥𝐥𝐲 𝐔𝐬𝐞
Python · FastAPI · Django · Node.js · Next.js · React · TypeScript · AWS · REST APIs · Claude (Anthropic API · MCP) · OpenAI · GPT-4o · LangChain · LangGraph · LlamaIndex · Pinecone · Weaviate · ChromaDB · Vector DBs · PostgreSQL · Docker · GitHub Actions
Let's talk.
I offer a free 30-minute discovery call where I'll map out the AI system you actually
need or tell you honestly if I'm not the right fit. Most clients know within the first 15
minutes, whether we should work together. DM me with a one-line description of what
you're building.
GPT-4
LangChain
Python
React
Node.js
PHP
Django
TypeScript
AWS Lambda
Docker
PostgreSQL
Generative AI
Large Language Model
Prompt Engineering
Retrieval Augmented Generation
Machine Learning
Natural Language Processing
Claude
CI/CD
Vector Database
Ashir M.
Karachi, Pakistan
$15/hr
5.0
2 jobs
Looking to build a fast, secure, and scalable digital product? Let’s turn your vision into production-ready reality.
I am a Full Stack Software Engineer and Cloud Architect with a BS in Computer Science. I bridge the gap between robust software development and system administration. I don't just write clean, high-performance code, I design the secure cloud networks and automated deployment pipelines that keep applications running smoothly under heavy traffic.
💡 What I Do Best:
- Full Stack Development: Building responsive interfaces and designing secure, high-concurrency backend logic, RESTful APIs, and microservices.
- DevOps & Automation: Accelerating software delivery by building automated CI/CD pipelines and managing containerized deployments.
- Database Administration: Architecting highly available data models, optimizing complex queries, and setting up automated replication/backup strategies.
- Network & Systems Security: Configuring secure cloud environments (VPCs), setting up private VPN tunnels, managing firewalls, and managing Linux servers.
🛠️ Core Technical Stack:
- Development: React/Vue, Python/Node.js/Java]
- REST APIs.Cloud & DevOps: AWS, Azure, Terraform, Docker, Kubernetes, Ansible, Git, GitHub Actions.
- Databases: PostgreSQL, MySQL, SQL Server.
- Networking & Systems: Linux (Ubuntu/RedHat), Cisco, Active Directory, Firewalls, Bash/Python scripting.
Whether you need a web application built from scratch, an automated deployment pipeline, a database optimized for speed or anything else, I deliver clean, documented, and secure results.
Just reach out to me and let's jump on a call to discuss your project goals!
DevOps
Database
Database Management
Microsoft Azure
Artificial Intelligence
Machine Learning
SQL
Python
ERP Software
GitHub
Java
.NET Core
Salesforce
Genesis Framework
AWS Development
Node.js
MongoDB
Redis
NICE
Bot Development
Rajan D.
Pokhara, Nepal
$20/hr
5.0
12 jobs
I build and ship production AI systems that real users depend on, not demos.
RAG pipelines, multi-agent LLM apps, fine-tuned models, and multimodal/OCR extraction, deployed to run 24/7 on Kubernetes and serverless GPU.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Top-Rated Plus | 100% Job Success | 4+ years
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Enterprise-grade AI for multinational companies and startups, including HIPAA-conscious healthcare workflows. I turn complex requirements into intelligent, production-ready applications that drive measurable results.
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WHAT I DO BEST
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Agentic AI & Multi-Agent Systems
Custom architectures with LangGraph, CrewAI, and Model Context Protocol (MCP), including self-improving agents that learn from evaluation feedback. Built for real automation, not chatbot demos.
Advanced RAG, Evaluation & Observability
10+ production RAG systems (self-RAG, adaptive retrieval), one serving hundreds of users across thousands of documents. Migrated Pinecone to Weaviate for better recall at lower cost. Every system ships with LLM-as-judge, retrieval metrics, and full tracing (LangSmith/Langfuse), so quality is measured, not guessed.
LLM Fine-Tuning & Cost Optimization
PEFT (LoRA/QLoRA), SFT, DPO, and instruction tuning. Fine-tuned a 7B Arabic model served on autoscaling serverless GPU, plus multimodal vision-language models. Cut client AI costs by up to 40% through open-source replacement and quantization, with no drop in performance.
Multimodal & Document AI
OCR and document-extraction pipelines across PDF, DOCX, PPTX, Excel, and images, with strong F1 on messy financial and clinical documents. Also built a temporal, multi-hop knowledge graph over an encrypted Postgres + Qdrant store with client-side encryption.
AI Automation & Integrations
Connecting LLMs to real business systems: n8n, Make (Integromat), Zapier, CRM automation (HubSpot, GoHighLevel, Airtable), Supabase backends, and Twilio/WhatsApp. AI that plugs into how your team actually works.
Enterprise Backend & Scalable Infra
Master-level Python (FastAPI, Flask), robust CI/CD, and multi-cloud deployment (AWS, Azure, GCP). Docker + Kubernetes with KEDA autoscaling, plus privacy-first, multi-tenant systems (E2EE, RBAC, audit logging), including HIPAA-conscious PHI handling.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
TECH STACK
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
▸ Agents & LLMs: LangChain, LlamaIndex, LangGraph, CrewAI, MCP, Hugging Face (PEFT/TRL), Ollama, TGI, vLLM
▸ Eval & Tracing: LangSmith, Langfuse, LLM-as-judge, custom eval frameworks
▸ Vector DBs: Weaviate, Pinecone, Qdrant, FAISS, ChromaDB
▸ Models: OpenAI, Claude, Gemini, fine-tuned open-source
▸ Automation: n8n, Make (Integromat), Zapier, Supabase, Twilio
▸ Backend: Python (FastAPI, Flask), TypeScript/Node (NestJS, NextJS), PostgreSQL, MongoDB
▸ MLOps & Cloud: Docker, Kubernetes, KEDA, CI/CD, Airflow, MLflow; AWS (SageMaker, Lambda), Azure ML / Azure OpenAI, GCP, serverless GPU
▸ CV & Data: OCR optimization, vision-language models, Stable Diffusion, web scraping
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WHY CLIENTS PICK ME
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▸ Ships to production. I build AND deploy. You get systems that run 24/7 and scale, not a prototype someone else has to finish.
▸ Proven track record. Top-Rated Plus, 100% Job Success, enterprise and healthcare AI delivered end-to-end.
▸ Innovation-driven. I bring the latest (MCP, adaptive RAG, new model releases) into production.
▸ Cost-conscious. High-performance AI that optimizes spend without compromising quality.
▸ Quality-first. Production-grade code, proper testing, and evaluation built in.
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Building an AI product, or need one taken from prototype to production and scaled reliably?
Send me the brief and I'll tell you exactly how I'd approach it.
Python
Machine Learning
Computer Vision
Natural Language Processing
SQL
AI Agent Development
Artificial Intelligence
Docker
Deep Learning Framework
Generative AI
LangChain
Retrieval Augmented Generation
FastAPI
Amazon Web Services
Prompt Engineering
Chatbot Development
Large Language Model
Automation
API Integration
AI Consulting
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