Sonal Kumar Email & Phone Number

Bengaluru, Karnataka, India

Bengaluru, Karnataka, India

• Designed and executed deep dives for Amazon Bazaar's Your Order flow, including detailed estimation and leveraging the robust architecture of Amazon.in's YourOrders. Gathered product requirements, resolved ambiguities, proposed code changes, and created comprehensive design documents.• Led a team of 2 SDE to successfully deliver the Bazaar Your Order (YO) flow within critical launch timelines.•Designed and developed critical features for the separate cart in Amazon Bazaar, handling 2 TPS traffic by customising Amazon.in's cart architecture. Optimised backend latency for the Product Search Recommendation web application by implementing an API which bulk fetch ASIN Info, reducing API latency by 75% from 4 seconds to 1.2 seconds. This enhancement improved customer retention and user experience for Amazon Sellers.• Led the design and implementation of a solution to automate the data refresh process for ML-based recommendations across different marketplaces. This automation reduced manual data handling completely, and decreased on-call responsibilities by 60%.• Mentored and onboarded a new SDE by creating a comprehensive ramp-up plan and guiding through essential processes. This enabled the new hire to quickly onboard and contribute to team tasks effectively.• Tech stack:- Java, Spring/Spring Boot, JSP, AWS (Lambda, EC2, ECS, SQS, S3, DynamoDB, SNS), React js, JavaScript, Python.

Bengaluru, Karnataka, India

• Developed a RESTful API using the Spring Boot framework.• Played a pivotal role in developing a cross-platform web application, utilizing React JS for the frontend and Spring Boot as the backend.• Authored comprehensive BDD (Behavior-Driven Development) scenarios and test cases to ensure thorough and efficient testing processes.• Demonstrated a commitment to code quality by crafting unit test cases employing Junit, Mockito, and Jest, ultimately achieving an impressive 80% testcoverage to identify and address potential issues early in the development cycle.• Innovatively designed prototypes and mock UI components using Draw.io, facilitating effective communication and visualization of project requirements.• Proactively identified and resolved bugs, contributing to a more stable application, while also increasing test coverage to further enhance software reliabilityand maintainability.

Bachelor Of Technology, Computer Science, 9.11/10

Aissce, Senior Secondary, Science