Built a Node/Typescript library to enable multipart uploads to AWS S3. Led migration to AngularJS LTS (Long Term Support) which addressed security vulnerabilities and breaking changes from web browsers. The product’s reliability SLOs (service level objectives) remained stable throughout the project.

Automated the build of configurations used to launch new applications, including the setup of CI/CD workflows. This automation consisted of serverless Node.js jobs in AWS Lambdas which orchestrated communication with Atlassian tools, approval systems, and authentication services. The average time to launch new applications was reduced from four weeks to three days.

Restructured a core service into a distributed architecture by separating the server logic into two microservices. This led to a more efficient handling of variations in request types, a reduction of traffic bottleneck, and an improvement on API readability. The redesign powered a new financial robo-advisor service and handled up to five million queries per day.

Built a new multi-factor authentication system to ensure that third-party consultants could securely connect to a segment of the Vanguard ecosystem. As a result, consultants were issued credentials that enabled traceability on actions applied to Vanguard client accounts.