Hi, I'm Sagar Sharma

Full Stack Developer building AI-powered web applications

Results-driven Full Stack Developer with 3+ years of experience building scalable web applications using the MERN stack, RAG pipelines, LLM integrations, and agentic AI workflows.

Sagar Sharma

About Me

Who I am

Results-driven Full Stack Developer with 3+ years of experience building scalable web applications using the MERN stack. Proficient in React.js, Next.js, Node.js, Python, FastAPI, Express.js, GraphQL, PostgreSQL, Redis, AWS, Docker, and Kafka. Experienced in RAG (Retrieval-Augmented Generation) pipelines, LLM integration (OpenAI, Anthropic Claude), vector databases (Pinecone, pgvector), MCP (Model Context Protocol), text embeddings, and agentic AI workflows. Skilled in microservices architecture, REST/GraphQL API design, third-party integrations, and Agile/Scrum delivery.

Experience

3+ Years

Location

Bengaluru, India

Education

MCA, 8.79 CGPA

Focus

MERN + AI/RAG

Career

Work Experience

Full Stack Engineer

May 2026 — Present

Bren Corporation

Bengaluru, India · Hybrid

  • Developing and enhancing Bren Homes by building scalable, reliable, and user-centric features.
  • Customizing and extending ERPNext 16 to streamline internal business processes and improve operational efficiency.
  • Designing and developing scalable backend services using Node.js and FastAPI following microservices architecture.
  • Building responsive and maintainable web applications using React.js with a focus on performance and usability.
  • Optimizing application performance using Redis and event-driven architectures with Kafka where appropriate.
  • Leveraging AI-assisted development tools to accelerate delivery, improve code quality, and automate repetitive tasks.

Full Stack Developer

Sep 2023 — May 2026

Hello Mentor Pvt. Ltd.

Bengaluru, India

  • Built RESTful and GraphQL APIs using Node.js and Express.js for student counseling, admissions, and document management workflows — improving system reliability by 25%.
  • Developed React.js and Next.js UIs with Redux state management, achieving 20% faster page loads; integrated AWS S3 for secure file storage, reducing upload times by 30%.
  • Implemented JWT-based authentication; designed optimized data models across PostgreSQL and MongoDB; applied Redis caching to improve API response times.
  • Integrated Zoho APIs, JODO payment gateway, and SpeedLabs APIs; built Python/Puppeteer scraping pipelines for counseling data and exam results.
  • Integrated MCP servers to expose tools to LLM agents; built a RAG pipeline with vector databases (pgvector/Pinecone) for semantic search-powered recommendations.
  • Containerized services with Docker; followed structured Git branching in Agile/Scrum sprints.

Junior Full Stack Developer

Jan 2023 — Aug 2023

Alpha World Tech

India

  • Built and maintained full-stack features using React.js, Node.js, Express.js, and MongoDB; developed reusable UI component libraries that reduced frontend development time by 30%.
  • Designed and consumed REST APIs for multiple client-facing modules; wrote unit and integration tests using Jest and Mocha achieving 80%+ code coverage.
  • Implemented role-based access control (RBAC), form validations, and dynamic data rendering across web applications.
  • Collaborated in a team of 5 engineers to deliver client projects end-to-end within deadline using Agile methodology, JIRA, and Git version control.

Stack

Skills

Languages

JavaScript (ES6+)TypeScriptPythonSQL

Frontend

React.jsNext.jsReduxTailwind CSSBootstrapMaterial UId3.jsHTML5CSS3

Backend

Node.jsExpress.jsNestJSGraphQLREST APIsWebSocketFastAPIMicroservices

AI & ML

RAG PipelinesLLM Integration (OpenAI, Claude)Text EmbeddingsVector DBs (Pinecone, pgvector, Weaviate)MCPSemantic SearchMulti-Agent AI

Databases

PostgreSQLMySQLMongoDBRedis

Cloud & DevOps

AWS (EC2, S3)DockerKafkaNginxCI/CD

Testing & Tools

JestMochaChaiReact Testing LibraryGitGitHubJIRAJWTAgile/Scrum

Work

Projects

Secure Code Analyzer

A multi-agent AI platform for real-time code vulnerability detection. Integrated LLM agents with a RAG pipeline to analyze codebases and surface security risks using context-aware semantic retrieval, with Redis caching and Temporal for workflow orchestration.

Node.jsRedisMongoDBTemporalMulti-Agent AILLMRAGVector Search

next-reticulumeducon

Full-stack education platform built and shipped for a client, live in production.

JavaScript

My Bren

Mobile app for Bren Corporation's Brain Homes platform, published on the Google Play Store.

Mobile App

Hello Mentor Portal

Student counseling, admissions and document management portal built for Hello Mentor, supporting 4,000+ users in production.

Next.jsNode.jsMongoDB

Hello Mentor

Hello Mentor's core platform for student counseling and career guidance.

Next.jsNode.js

CloudGuardX

In Progress

A cloud security platform currently in active development.

Master of Computer Applications (MCA)

New Horizon College of Engineering, Bengaluru, Karnataka

2021 — 2023CGPA: 8.79 / 10

Contact

Let's work together

I'm always open to discussing new opportunities, interesting projects, or just talking tech. Reach out through any of the channels below.