Duy Ngo

Software Engineer II at Amazon July 2022 - Current

DImplemented data backfilling and validation APIs for Business Order Info (BOI) system’s database migration and re-architecture, enabling configuration of up to 30 custom fields with thousands of options, ensuring 100% backward compatibility and low latency.
Contributed to BOI implementation at the group level, enhancing customer flexibility during checkout, resulting in an improved user experience, and enabling efficient management of 100+ departments, locations, and cost centers for large enterprises.
Designed and implemented end-to-end on-demand deletion integration for BOI to comply with EU law. Conducted rigorous unit testing and integration testing across various environments to ensure compliance and seamless function- ality.
Successfully managed on-call responsibilities for tier-1 services, maintaining high availability, and resolving high- severity issues promptly, leading to minimized ticket count and improved system reliability.
Technology used: Java, Spring MVC, CDK, DynamoDB, S3, CloudWatch, SQS, SNS, Lambda, jQuery.

Design and develop features for company’s B2B SaaS platform using Ruby on Rails and ReactJS.
Build out models for pricing content feature which helps companies import 3rd party data and reduce their catalog.
Implement patterns of DDD for team’s domain which facilitates maintainability and high availabality.
Perform data and schema migrations using ActiveRecord and follow TDD using Rspec.

Worked in multi-disciplinary teams to develop Android, iOS, and Web based apps for healthcare clients within 4-week development cycle using the snapClinical platform, together with XCode and Android Studio.
Created workflow diagrams and collaborated with UI designers to develop projects with best design practices in mind combined with current platform functionality.
Followed Agile methodology by using Atlassian tools and participating daily stand-up meetings.

Designed and built an Android application for our clients Animal Pad with features such as direct messaging, event scheduling, and personal profile to improve the means of communication between their fosters and adopters.
Worked as team lead in close collaboration with 4 other members within an Agile environment and followed design patterns like MVC, Factory, Data Access Objects, etc. which facilitates clean distribution of roles and responsibilities across various layers of processing.

Attained training on different Cisco’s Networking Security technologies such as Meraki and ISE
Helped install, maintain, and configure Cisco networks and learned Cisco routing and switching
Accompanied engineers to consult clients and made recommendations for network planning and upgrades