• Full-stack development for Info Layers (Reporting Platform) using Ruby on Rails, Javascript, React, and MySQL

• Improved design and usability for 100+ REST APIs by recommending and applying best practices

• Backend BI server development with concentration on dimensional modeling, query execution planning, and data aggregation using Scala and PostgreSQL

• Designed and implemented a hierarchical configuration system to support the migration of hundreds of settings to use different values at different scopes within an organization

• Reverse-engineered solutions for supporting combinations of query filters from Microsoft Excel and other BI tools

• Designed and implemented process for identification and cleanup of zero-utilization data aggregates

• Designed and implemented process for preferred storage solutions in virtualized (multiple data warehouse) models

• Designed and implemented feature for exporting and importing data aggregates

• Recognized company-wide via Employee of the Month Award in November 2020

• REST API development for Global Submit Service using Java and Spring

• Integrated numerous internal applications with IdentityClient (Security as a Service)

• 1st delegate SCRUM master: conducted scrum meetings, backlog refinement, sprint planning, and sprint retrospect

• Implemented automatic, expendable functional testing framework that replaced manual regression testing

• Created and managed in-depth and articulate technical guides for both external and internal users

• Managed end-to-end release life cycle including requirement gathering, code implementation, unit and integration testing, regression testing, deployment, and post-deployment validations

• Provided 24/7 on-call support for Global Submit Service

• Architected and implemented near-realtime extract, transform, and load (ETL) ingestion service in Java. Platooning fleet data is captured from moving vehicles and uploaded to Amazon Simple Cloud Storage Service (S3); ETL is launched by Amazon Simple Queue Service (SQS) upon detecting uploads to S3 and loads transformed data into Apache Cassandra in local data center for reporting and KPI measurements in web applications

• Designed data mining procedure in Javascript on MongoDB for identifying comparable datasets for energy efficiency analysis that restrict confounding variables

• Developed web-based interactive query application for fleet monitoring using Go for data preparation and REST API, and Bokeh in Python for front end report

• Conducted extensive data modeling in a NoSQL environment (Apache Cassandra) for multiple projects

• Developed truck load balance monitor and weight recording application using C# for Microsoft Visual Studio

• Worked as SCRUM master under Agile methodology using Jira to manage whole development cycle

• Managed interns via conducting one-on-one consultations, articulating feedback, and coordinating group activities