You will get Full Stack Developer | PERN Stack (PostgreSQL + Express + React + Node)

Name: You will get Full Stack Developer | PERN Stack (PostgreSQL + Express + React + Node)
Availability: InStock

Shanikumar S. Shanikumar S.

4.7

Shanikumar S. Shanikumar S.

4.7

Project details

If you’re looking for a highly skilled Full-Stack PERN Developer to build, scale, or modernize your web application, you’re in the right place. I specialize in designing fast, secure, and scalable applications using PostgreSQL, Express.js, React.js, and Node.js. Whether you need a brand-new platform, an API-driven backend, or a polished, responsive frontend, I deliver clean architecture and production-ready code.

Programming Languages

JavaScript, Python, TypeScript

Coding Expertise

Cross Browser & Device Compatibility, Performance Optimization, Design

What's included

Service Tiers	Starter $300	Standard $1,000	Advanced $2,000
Delivery Time	5 days	15 days	30 days
Number of Revisions	1	5	Unlimited
Opt-In Form	-	-	-
Autoresponder Integration	-	-	-
Social Media Icon Integration	-	-	-
Responsive Design	-	-	-

4.7

30 reviews

87% Complete

(26)

7% Complete

(2)

3% Complete

(1)

1% Complete

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3% Complete

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AI Code Evaluator Shani has extensive technical background and coding skills that any project will benefit from.

AI Fintech Use Cases Validation

Full Stack Developer with AI / ML Expertise ( Python Backend ) Agentic AI & Orchestration can't beat his knowledge. Will definitely work with him again. Thank you!

Fintech QA Research Shani was great to work with. A clear and timely communicator, which allowed us to complete an important phase of our project on time.

30 minute consultation Perfect GenAI agent stack developer. Thanks for your help.

About Shanikumar

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Full Stack AI/ML Developer | Custom LLM, RAG & Agent Apps | Agentic AI

100% Job Success

4.7 (30 reviews)

Singapore, Singapore - 7:15 am local time

I build 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 and 𝐋𝐋𝐌 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 that ship to production — 𝐀𝐬𝐲𝐧𝐜 𝐑𝐀𝐆 pipelines, 𝐀𝐮𝐭𝐨𝐧𝐨𝐦𝐨𝐮𝐬 𝐀𝐠𝐞𝐧𝐭𝐬, and 𝐂𝐮𝐬𝐭𝐨𝐦 𝐌𝐨𝐝𝐞𝐥 integration. 𝟏𝟎+ 𝐲𝐞𝐚𝐫𝐬 full-stack development trusted by Fortune 500s, Growing business, and Startups.

I provide strategic and technical consulting for businesses, startups, and enterprises looking to leverage AI/ML, Generative AI, Agentic AI, Full Stack Development, Cloud Architecture, and Product Engineering.

🏆 𝗣𝗿𝗼𝘃𝗲𝗻 𝗧𝗿𝗮𝗰𝗸 𝗥𝗲𝗰𝗼𝗿𝗱
✅ 100% Job Success Score
✅ Consistent 5★ Client Feedback
✅ Full stack development with AI Integration
✅ Experts for Agent Observability, AI Search Optimisation and AI Automation
✅ Cross Platform AI Mobile Apps & Web Development

💡 What I Do Best

✅ Agentic AI | GenAI | LLM Routing | Orchestrate Multiple LLMs
✅ Local LLM Fine-Tuning with Llama, Mistral, Qwen, Ollama, LM Studio
✅ Agent Observability with Grafana , DataDog , Dynatrace
✅ LLM performance monitoring, Latency reduction, & Cost Optimisation
✅ Generative AI & LLM Application Architecture & Multi-Agent System Design
✅ MCP (Model Context Protocol) Architecture & Implementation
✅ Conversational AI with Wishper API, OpenAI, Langchain, LangGraph, CrewAI
✅ AI RAG Pipeline, AWS Vector Database, Voice AI solutions
✅ AI Workflow Automation with n8n, Make, Relevance AI & OpenClaw
✅ Prompt Engineering, MLOps, Datascience & Scalable Agentic AI Deployment

What I deliver:

🔹 𝐀𝐈/𝐌𝐋 𝐭𝐡𝐚𝐭 𝐬𝐡𝐢𝐩𝐬 — LLM integrations, RAG, autonomous agents, OpenAI/Claude APIs, fine-tuning, NLP, computer vision

🔹 𝐀𝐈 𝐒𝐞𝐚𝐫𝐜𝐡 𝐎𝐩𝐭𝐢𝐦𝐢𝐬𝐚𝐭𝐢𝐨𝐧 ( 𝐀𝐈 𝐒𝐄𝐎 ) — AEO , GEO , LLMO , AISEO , EEAT

🔹 𝐃𝐚𝐭𝐚 & 𝐢𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 — Postgres, vector DBs (Pinecone, Chroma, Supabase), Docker, Kubernetes, AWS DevOps

🔹 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 — Workflow and CRM intelligence with n8n, Make, and custom pipelines

🔹 𝐅𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐰𝐞𝐛 & 𝐀𝐏𝐈𝐬 — MERN , PERN , MEAN , Full Stack , Etc.

🔹 𝗖𝗿𝗼𝘀𝘀-𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 — Experiences including Flutter ( Website & Mobile Application ) and Progressive Web Apps. Experience to Run Local LLM in Mobile App.

I've taken several SaaS products from prototype to production, and my Upwork clients keep coming back because I focus on working software, clear communication, and hitting deadlines.
Whether you need an AI feature added to an existing product or a full app built end-to-end — design, build, deploy — I can own it. Send me a message about what you're building and I'll tell you exactly how I'd approach it.

Top Skills & Expertise

🤖 𝐀𝐈, 𝐀𝐠𝐞𝐧𝐭𝐢𝐜 𝐀𝐈 & 𝐋𝐋𝐌 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
• AI Agents & Multi-Agent Systems
• MCP (Model Context Protocol)
• OpenAI, Claude, Gemini, DeepSeek, Qwen, Llama
• LangChain, LangGraph, CrewAI, AutoGen
• RAG Pipelines & Knowledge Bases
• Vector Databases (Pinecone, ChromaDB, Weaviate, S3 Vectors)
• Prompt Engineering & Fine-Tuning
• AI Workflow Automation
• AI Chatbots & Virtual Assistants
• Local LLM Deployment (Ollama, LM Studio)
• Generative AI Applications
• AI SaaS Platforms

🐍 𝐏𝐲𝐭𝐡𝐨𝐧 & 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
• Python Development
• Django REST Framework (DRF)
• Odoo ERP Development
• REST APIs
• GraphQL APIs
• Microservices Architecture
• Celery & Redis
• PostgreSQL
• MongoDB
• MySQL
• Supabase
• Docker
• Kubernetes

⚛️ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 & 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
• React.js
• Next.js
• Angular
• NestJS
• Node.js
• TypeScript
• JavaScript
• Redux
• Zustand
• Tailwind CSS
• Material UI
• Responsive Web Applications
• SaaS Development
• MERN Stack Development

☁️ 𝐂𝐥𝐨𝐮𝐝, 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰
• AWS
• Azure AI Foundry
• CI/CD
• Docker
• Kubernetes
• Terraform
• DevOps
• Power BI
• Salesforce
• HubSpot
• ClickUp
• n8n
• Make
• Relevance AI

🛠️ 𝗧𝗼𝗼𝗹𝘀
• GitHub
• GitLab
• Bitbucket
• Jira
• Trello
• Asana

🔑 𝐊𝐄𝐘𝐖𝐎𝐑𝐃: AI Developer, AI Engineer, AI SaaS Developer, Generative AI Developer, AI Agent Developer, Gen AI, ChatGPT Developer, Claude AI Developer, MCP Developer, Cursor AI Developer, LangChain Developer, LLM Apps Developer, AI Automation Expert, AI Workflow Automation, Custom AI Platforms, AI Integrations, Python AI Developer, Node.js AI Developer, Next.js AI Developer, React AI Developer, AI Chatbot Developer, AI MVP Development, SaaS Developer, Full Stack AI Developer, AI in FinTech, AI in Healthcare, AI Consultant, Pinecone Developer, AI Prototyping Expert, n8n Automation Developer, OpenAI API Developer, Claude API Integrations, FastAPI AI Developer, Django AI Developer, AI Product Developer, Python Developer, Full Stack Developer

# Agentic AI
# MCP Server Development
# Claude Code
# AI Coding Agent
# AI Automation
# LangGraph
# CrewAI
# AutoGen
# LlamaIndex
# Vercel AI SDK
# AI Voice Agent
# AI Customer Support Agent
# AI Sales Agent
# AI Workflow Orchestration
# Vector Search
# Knowledge Graph
# Multi-Agent Systems

Steps for completing your project

After purchasing the project, send requirements so Shanikumar can start the project.

Delivery time starts when Shanikumar receives requirements from you.

Shanikumar works on your project following the steps below.

Revisions may occur after the delivery date.

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