• Hi!
    I'm Sanjoy Kumar Das

    I’m a Software Engineer specializing in Full-Stack development and Generative AI, focused on building scalable, high-performance applications.

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    Eligibility: Canadian Citizen | Eligible for TN visa (U.S.) | Authorized to work in the US

Professional Summary

Who Am I?

Hi I'm Sanjoy Kumar Das.

I’m a hands-on developer who enjoys designing, coding, and shipping production-ready systems using React, Node.js, Python, and modern AI frameworks. I’m particularly interested in roles where I can contribute directly to building and scaling real-world products.

Key Highlights:

  • Full-Stack Engineering: Strong experience building responsive frontends (React/TypeScript) and scalable backend services (Node.js/Python).
  • AI Engineering: Hands-on experience with LLMs, RAG, LangChain, LlamaIndex, and vector databases (ChromaDB, FAISS).
  • Cloud & Infrastructure: Experience working with GCP, AWS, and Azure, with solid foundations in Linux and networking.
  • System Development: Focused on building, optimizing, and deploying production-ready applications.

My Specialty

My Skills

Languages & Frameworks:

Python (Flask)

90%

JavaScript

80%

SQL

85%

React.js

90%

AI & GenAI

OpenAI API

85%

LangChain

80%

Vector DBs (ChromaDB, FAISS)

85%

Prompt Engineering

90%

Machine Learning & Deep Learning:

Scikit-learn

75%

TensorFlow

80%

Keras

85%

Scripting:

Python

85%

Bash

80%

Shell Script

85%

Cloud Platforms:

AWS

80%

Google Cloud Platform

90%

Microsoft Azure

75%

DevOps Tools:

Ansible

75%

Git

80%

Docker

85%

Jenkins

90%

GitHub

85%

Networking:

Cisco Router

75%

Cisco Switch

80%

DHCP

85%

DNS

90%

Databases:

Oracle 11g

75%

MySQL

80%

MariaDB

85%

MongoDB

90%

Operating Systems:

Windows

85%

Linux(Ubuntu, RedHat, CentOS)

90%
Education

Education

Toronto Metropolitan University,Canada

Grade: 4.03 out of 4.33

Passing Year: 2022

Concentrating on the forefront of intelligent technology, the master of engineering (MEng) program specializing in artificial intelligence with the technical training and ethical awareness to make a meaningful impact in the AI field. Recognized by the Vector Institute, the program consists of four core courses – Intelligent Systems, Neural Networks, Deep Learning and Advanced Data Engineering.

Dhaka University of Engineering and Technology- Gazipur

2007

The program provides a strong foundation in all of the main areas of Computer Science and Engineering, with an emphasis on applied topics in current technology and software development. One main specialization is Object Oriented software development using C++ programming language

Project using C, C++, ASP, Visual Basic, HTML, Assembly Language. Computer Networking and Linux etc.

[Equivalent to Canadian 4 Years Bachelor's Degree, evaluated by WES, ON, CA]

Bangladesh Technical Education Board

2002

[Equivalent to Canadian Secondary School Diploma, evaluated by WES, ON, CA]

Experience

Work Experience

PledgX Inc.

Full Stack Developer | Software Engineer 2022-till

  • Developed and maintained PledgXQualify, a cloud-based SaaS platform for automating contractor qualification workflows across construction stakeholders.
  • Built scalable backend services and REST APIs using Python (Flask) for contractor data processing, document management, and reporting.
  • Implemented full-stack features using React.js and modern JavaScript, improving workflows for onboarding, document submission, and qualification processes.
  • Integrated AI-powered features using OpenAI APIs, Google Document AI, and vector databases to enable intelligent document analysis and automated insights.
  • Improved application performance and reliability by optimizing backend logic, API efficiency, and deployment workflows.
  • Worked with AWS and GCP for deploying and scaling cloud-based applications.
  • Collaborated with cross-functional teams in an Agile environment to deliver features in iterative release cycles.
  • Reduced API response time by ~30–50% through backend and database's query optimization.
  • Improved document processing efficiency by ~40–60% using Doc AI-powered automation.

Teletalk Bangladesh Limited

System Administrator | Operation Specialist 2016-2020

  • Maintained and supported large-scale Linux-based systems and telecom infrastructure, ensuring system availability and reliability.
  • Monitored system performance and implemented optimizations to improve uptime and operational efficiency.
  • Automated routine maintenance and backup processes, reducing manual intervention.
  • Troubleshot system and network issues, improving response time and minimizing service disruptions.
  • Collaborated with cross-functional teams to support system upgrades and operational improvements.

Teletalk Bangladesh Limited

IT Analyst 2013-2016

  • Provided technical support for system and network issues across enterprise environments.
  • Performed system updates, backups, and recovery operations to ensure data integrity.
  • Assisted in data migration and system upgrades, improving system performance and reliability.
  • Managed user access control and system configurations

Teletalk Bangladesh Limited

Juinor Database Administrator 2008-2013

  • Supported database administration tasks including installation, configuration, and maintenance.
  • Monitored database performance and assisted in optimization to improve efficiency.
  • Implemented backup and recovery procedures to ensure data security and availability.
  • Provided first-level support for database-related issues and queries.
  • Managed database security, including user roles and access control.
My Work

Recent Work

Web Development Apps

PledgX Inc.(Website)

Website

100 49

PledgX Inc.(App)

App

100 49

Teletalk Bulk SMS Panel(Click)

Website

100 49

Teletalk Revenue Portal(Click)

Website

100 49

Teletalk LIC SMS Monitor Panel(Click)

Website

100 49

IELTS Speaking(Click)

Apps

100 49

IELTS Vocabulary(Click)

Apps

100 49

Kids Math(Click)

Apps

100 49

Certifications & Courses

Recent Certifications

Lighthouse Labs Certification
February 25, 2022 | Diploma of Web Development | 4

Web Development Bootcamp

HTML5 Bootstrap Template by sanjoykumar.com
April 22, 2020 | Python | 4

Crash Course On Python

HTML5 Bootstrap Template by sanjoykumar.com
April 20, 2020 | Data Scientist | 4

The Data Scientist's Toolbox

HTML5 Bootstrap Template by sanjoykumar.com
April 13, 2020 | Bash | 4

Learning Bash Scripting

HTML5 Bootstrap Template by sanjoykumar.com
May 13, 2017 | RHCSA | 4

Red Hat Certified System Administrator

HTML5 Bootstrap Template by sanjoykumar.com
April 24, 2020 | GCP | 4

Google Cloud Platform Fundamentals: Core Infrastucture

HTML5 Bootstrap Template by sanjoykumar.com
November 04, 2019 | MCSA | 4

Microsoft Certified Solutions Associate

HTML5 Bootstrap Template by sanjoykumar.com
April 14, 2020 | Ansible | 4

Learning Ansible

HTML5 Bootstrap Template by sanjoykumar.com
April 13, 2020 | DevOps | 4

DevOps Foundations

Get in Touch

Contact

LinkedIn Profile

GitHub Profile

sanjoy.kumar.backup@gmail.com

Toronto,ON,Canada

+1-647-394-6549