Summary
Overview
Work History
Education
Skills
Accomplishments
Timeline
Hi, I’m

Shankar Das Banerjee

Software Engineer
Kolkata
Shankar Das Banerjee

Summary

Accomplished Software Engineer with a two-year tenure at Amazon and prior internship experience at Microsoft. Specialized in the development of high-scalability systems that efficiently handle millions of daily requests, playing a key role in enabling Amazon to offer billions in concessions to customers. Twice awarded the Amazon Excellence Award for extraordinary contributions within the past year. Recognized for driving significant enhancements in customer experience through innovative software solutions in demanding, fast-paced environments. Demonstrates strong collaboration skills, ensuring the delivery of efficient and high-quality software projects.

Overview

3
years of professional experience
4
years of post-secondary education

Work History

Amazon
Hyderabad

Software Engineer
07.2022 - Current

Job overview

  • Latency Reduction and Award for Outstanding Performance: Identified and rectified design defects causing high latency in multiple existing systems, leading to a 50% reduction in system latency. Recognized and awarded for outstanding performance in enhancing system efficiency.
  • Bulk Concession Application Enhancement: Instrumental in enhancing Amazon's bulk concession application by implementing critical guardrails, effectively preventing accidental concession leakages, and delivering annual cost savings of approximately $100 million. Spearheaded the design and implementation of an automated review mechanism, safeguarding up to 100,000 customers against human errors.
  • Automated Concession Channel Enhancement: Led the design of a kill switch mechanism for the automated concession channel. This innovation is key to preventing system abuse by limiting concessions, thereby saving millions of dollars and enhancing system integrity against abusive usage.
  • Ultra-Fast High-Volume Data Storage Design: Developed the High-Level Design for a system handling daily 500GB data imports, focused on ultra-low latency and high availability. Utilized AWS technologies including DynamoDB, Glue, S3, Lambda, and API Gateway. Led the design review with senior engineers, demonstrating expertise in scalable, reliable data solutions.

Amazon
Hyderabad

Software Engineering Intern
01.2022 - 07.2022

Job overview

  • Concession Systems Microservices Migration: Contributed to the migration of Concession Systems to a microservices architecture, implementing flag logic for policy-driven concession decisions.
  • API Development and Optimization: Built and optimized an API, drastically reducing concession query times from 5 minutes to 500ms through effective reversalID indexing.
  • CI/CD and Deployment: Participated in CI/CD processes, focusing on deploying updates and ensuring system stability in production environments.

Microsoft
Hyderabad

Software Engineering Intern
05.2021 - 07.2021

Job overview

  • Kaizala Chat SDK Integration: Integral in integrating the Kaizala chat SDK with multiple application frameworks including React Native, Flutter, Xamarin, and Ionic.
  • Cross-Platform Adaptability: Demonstrated ability to work across various technologies, significantly enhancing Kaizala’s functionality.

Education

National Institute Of Technology
Durgapur

Btech from Electronics And Communications Engineering
08.2018 - 05.2022

University Overview

  • CGPA: 9.2
  • Ranked 2nd in the Department

Skills

    Programming Languages: Java, C

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Accomplishments

  • Achievement- Data Accuracy Enhancement and Gladiator Award: Identified and resolved longstanding issues in Amazon's concession recording systems, significantly improving the accuracy of recorded data for machine learning models. Proposed effective workarounds, documented short-term and long-term solutions, and successfully rectified the problems. Recognized with the prestigious Gladiator Award of Excellence for these outstanding contributions. Award link - https://drive.google.com/file/d/15Gviw9tdJYs7L72auATzFZK_8YgNXb6j/view?usp=sharing
  • Latency Reduction and System Enhancement - Proactively detected and remedied persistent latency issues in Amazon's aging policy evaluation systems, encompassing thread and timeout problems. Methodically documented findings and proposed solutions, conducting thorough reviews with senior engineers, and overseeing the implementation of changes. Achieved a remarkable 50% reduction in system latency, optimizing overall performance. Award link - https://drive.google.com/file/d/1wltyYdwp8Qfs3ohOM5Sw-KQmBYeaTvrD/view?usp=sharing

Timeline

Software Engineer

Amazon
07.2022 - Current

Software Engineering Intern

Amazon
01.2022 - 07.2022

Software Engineering Intern

Microsoft
05.2021 - 07.2021

National Institute Of Technology

Btech from Electronics And Communications Engineering
08.2018 - 05.2022
Shankar Das BanerjeeSoftware Engineer