I'm a Senior Full Stack Developer with 8+ years of experience designing, building, and deploying enterprise-grade applications and cloud platforms.

My experience spans enterprise CRM, government platforms, GIS/GPS systems, RFID and warehouse solutions, AI-powered knowledge systems, automation, and developer tooling.

I enjoy working across the complete software lifecycle — from architecture and development to deployment and production.

• Design and build enterprise-grade web applications
• Develop scalable backend systems and REST APIs
• Build CRM and business workflow platforms
• Integrate AI and LLM capabilities into production applications
• Develop RAG and semantic search systems
• Build RFID, inventory, and warehouse management solutions
• Develop GIS/GPS and field-operation platforms
• Design containerized deployment and CI/CD pipelines
• Build developer productivity and AI engineering tools

Frontend

React.js · Next.js · TypeScript · JavaScript · Tailwind CSS · Material UI · Vite

Backend

Node.js · NestJS · Express.js · Python · REST APIs · GraphQL · Microservices

Databases

PostgreSQL · MongoDB · MySQL · Supabase · Vector Databases

AI & Automation

OpenAI API · LangChain · RAG · Vector Embeddings · Semantic Search · AI Chatbots · n8n

DevOps & Infrastructure

Docker · Docker Compose · Jenkins · CI/CD · Linux · Nginx · Git · DigitalOcean · Vercel

Senior Full Stack Developer / Tech & Design Manager

I've worked on enterprise applications for private-sector and government clients, taking products from architecture through production.

Areas of responsibility include:

• Full-stack application architecture
• REST API and backend development
• Role-based access control and multi-tenant systems
• CRM, ticketing, and subscription platforms
• Fleet and field-operation systems
• AI-powered knowledge retrieval
• RAG and semantic search
• Third-party API integrations
• WhatsApp Business API integrations
• Payment integrations
• Containerized deployments
• CI/CD pipelines
• Code reviews and technical mentorship

A significant portion of my professional work is maintained in private repositories because it contains proprietary company and client information.

I'm particularly interested in applying AI to practical software-engineering and enterprise problems.

Experience building AI-powered knowledge systems using:

OpenAI API · RAG · Vector Databases · Semantic Search

Typical capabilities include:

• Document indexing
• Semantic retrieval
• Knowledge-base search
• Conversational interfaces
• Context-aware responses
• Enterprise knowledge retrieval

I've also worked on AI-assisted developer tooling, including:

CLI Codebase Assistant

A terminal-based assistant that indexes Git repositories and enables natural-language questions about source code using vector embeddings and repository-aware retrieval.

LLM Evaluation & Benchmarking

A containerized evaluation framework for benchmarking AI coding models against structured engineering tasks using executable graders and reproducible environments.

Automated Bug Triage

A debugging tool that analyzes failing repositories, test results, stack traces, and AST information to identify potential faults and generate candidate fixes for validation.

ML Paper Replication Toolkit

A reproducible toolkit for packaging machine-learning research into executable, locally validated replication tasks.

CRM · Workflow Automation · RBAC · Reporting · APIs · Integrations

GIS · GPS · Field Applications · Inspections · Geo-tagged Data · Analytics

RFID Readers · Barcode · Inventory · Asset Tracking · Warehouse Operations · Offline Sync

LLMs · RAG · Embeddings · Semantic Search · AI Assistants · Evaluation

Docker · CI/CD · Jenkins · Linux · Nginx · Containerized Deployment

This GitHub account contains both public and private work.

Many of my production projects remain private because they contain proprietary source code, company infrastructure, business logic, or client information.

My public repositories are focused on:

• Independent projects
• Open-source work
• AI experiments
• Developer tools
• Technical research
• Reference implementations
• System design

Master of Computer Applications (MCA) SRM University · 2017

Bachelor of Computer Applications (BCA) Sikkim Manipal University · 2015

LinkedIn: linkedin.com/in/sk2you

GitHub: github.com/surajheadsup

Email: surajkumarmca15@gmail.com

AI Engineering · LLM Applications · RAG · Developer Tools · Backend Architecture · Cloud Infrastructure · Automation · Enterprise Software