About

Backend engineer, focused on dependable systems.

I care most about backend systems, distributed architecture, and making AI actually dependable in production.

I'm a backend engineer at IBM, where I integrate large language models into a production GenAI platform on AWS. I build serverless services with AWS Lambda, DynamoDB, SQS and Amazon Bedrock — shipping retrieval-augmented generation, AI guardrails, and model tuning into real enterprise workflows.

A big part of my work is tracing failures across services and fixing them at the root: debugging model responses, resolving data inconsistencies, and hardening reliability in AI-driven workflows. Before IBM I was a full-stack developer, so I'm comfortable from the React front end down to the queue.

Education
B.Tech, Electronics & Communications — Heritage Institute of Technology · CGPA 8.6
Languages
English · Hindi · Urdu · Bengali
Based in
Kolkata, India

01Experience

  1. 2025 — NowFull-time

    Application Developer / Backend Engineer IBM

    Integrate large language models (Amazon Bedrock, Anthropic Claude) into a production GenAI platform — retrieval-augmented generation over knowledge bases, AI guardrails and validation, and model tuning. Build the serverless AWS backend (Lambda, S3, DynamoDB, SQS) and ship through a CI/CD pipeline (Jenkins, SonarQube, JFrog) with disciplined Git branching.

  2. 2024Apprenticeship

    Application Developer — Cloud Full Stack IBM

    Cloud full-stack development across the same platform — ramping into serverless architecture, AWS services and disciplined Git workflows.

  3. 2023 — 2024Internship

    Full Stack Developer TeleMatrix Global

    Built efficient web applications end to end — front end in HTML/CSS, JavaScript and React, back end in Node.js, Express and Python — collaborating with the team to ship client work.

02Capabilities

AI / GenAI

  • Amazon Bedrock
  • Anthropic Claude
  • RAG & knowledge bases
  • AI guardrails & validation
  • Prompt engineering & tuning
  • Embeddings — Titan, Cohere

Cloud / Backend

  • Python
  • AWS Lambda · Serverless
  • Microservices
  • S3 · DynamoDB · SQS
  • SES · Cognito · API Gateway
  • Textract · REST APIs

DevOps / CI-CD

  • Jenkins · SonarQube · JFrog
  • Git · Bitbucket
  • Docker · ECS
  • CloudWatch

Frontend

  • JavaScript (ES6+)
  • React.js
  • HTML & CSS
  • Responsive design

Databases

  • DynamoDB — NoSQL modeling
  • MySQL

Languages

  • Python
  • JavaScript
  • C++
  • SQL · Java

Let's work together.

Open to backend, distributed-systems and applied-AI work. The fastest way to reach me is email.

Get in touch Résumé