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About

Backend developer with 3+ years of hands-on experience building, maintaining, and scaling reliable server-side applications using JavaScript, Node.js, TypeScript, and AWS cloud environments. Highly capable across the entire application lifecycle—from designing scalable RESTful APIs to optimizing relational/NoSQL database performance, setting up service monitoring, and ensuring overall system reliability. Experienced collaborating closely with front-end developers to map API contracts while implementing effective security protocols and automated testing suites.

Experience4

  1. Backend Developer

    Jan 2021 — Present

    Appycodes

    Led a team of 5 engineers on enterprise projects, conducting code reviews and guiding juniors. Developed and optimized multiple platforms including Bloc Ad-Manager (NestJS, TypeScript, PostgreSQL) boosting efficiency by 40%, Zonely (Fastify, Redis) managing 500+ users at 99.9% uptime with 35% latency reduction, and Creoate (Node.js, AWS Lambda, MySQL) eliminating 70% manual shipping. Owned CI/CD pipelines, AWS CloudWatch monitoring, Swagger API docs, and Jest test suites.

  2. Backend Developer

    Nov 2020 — Jan 2021

    Technogleam

    Built high-performance RESTful APIs using Node.js, Express.js, Sequelize ORM with optimal data indexing. Collaborated with frontend teams to map API schemas and troubleshoot integrations.

  3. Freelance Backend Developer

    Dec 2019 — Oct 2020

    Independent / Self-directed

    Executed independent backend contracts focusing on robust logic routines, enhancing skills in PostgreSQL and AWS cloud instances.

  4. Software Trainee Engineer

    Feb 2019 — Nov 2019

    Carvewing Solution

    Developed an automated log monitoring tool that analyzed runtime exceptions, sent notifications, and auto-created tracking tokens to reduce incident response time. Gained foundational SDLC experience including testing and git branch management.

Projects5

  • Bloc Ad-Manager

    A real-time bidding platform built with NestJS, TypeScript, and PostgreSQL. Implemented secure payment gateway architectures and optimized database relations, resulting in a 40% boost in platform efficiency.

    • NestJS
    • TypeScript
    • PostgreSQL

  • Zonely

    Real-time chat and calling platform using Fastify and Redis, managed 500+ concurrent users at 99.9% uptime and reduced delivery latency by 35% through event-driven design.

    • Fastify
    • Redis

  • Ariso

    Secure workspace integration module processing over 5,000 daily actions, integrated AWS SQS for reliable asynchronous event consumption ensuring 100% data accuracy.

    • AWS SQS

  • Creoate

    Built core backend features for a B2B platform using Node.js, AWS Lambda, and MySQL, streamlining complex order customization workflows and eliminating 70% of manual shipping processes.

    • Node.js
    • AWS Lambda
    • MySQL

  • Automated Log Monitoring Tool

    Developed a tool that analyzed runtime exception payloads, sent real-time notifications, and auto-created tracking tokens to reduce incident response times.

    • Git
    • Testing Pipelines

Education2

  • B.Tech

    2018

    Adamas Institute of Technology, MAKAUT West Bengal, India

    Computer Science and Engineering

  • Higher Secondary (Class XII)

    2014

    WBCHSE