Yale Nguyen

Built responsive React and TypeScript applications used daily by learners and operations teams, including polished dashboards and task/program workflows. Delivered Node.js and Python REST APIs with secure authentication and role-based access control for user accounts across multi-site production deployments. Developed PostgreSQL schemas and data models for enrollment, modular content, progress tracking, and follow-up tasks, plus admin tooling for managing users, content configuration, and platform settings. Wrote automated tests and fixed defects across frontend, API, and database layers, improving reliability across remote stakeholder releases. Optimized dashboard query/API performance to reduce latency as user activity and record volume grew. Integrated third-party services and webhooks with documented contracts for account linkage, notifications, and workflow features; supported staging-to-production deployment with runbooks, smoke verification, and rollback readiness. Owned end-to-

Shipped full-stack SaaS web applications from early product stages, including responsive React interfaces for daily learner and staff workflows. Built Node.js REST services with Express routing, authentication, and role-aware endpoints separating clinical, admin, and front-desk capabilities. Designed PostgreSQL integration for accounts, structured content, schedules, and progress panels across multi-tenant customers in multiple regions. Improved existing UX by refining module style care plans, scheduling, and billing screens based on direct feedback. Developed interactive dashboards for tasks, upcoming lessons, and status summaries with fast load performance on phones and tablets. Conducted testing and critical bug fixes to protect uptime while shipping new learning workflow features each sprint. Delivered admin panel capabilities for user provisioning, content updates, and tenant configuration; supported onboarding of new customer groups. Supported deployments using Docker and CI/CD p

Developed control-plane services for EC2 Security Groups, managing rule lifecycle and coordinating firewall policy propagation to instances across AWS regions. Integrated with VPC mapping services and ensured security-group state consistency shortly after API changes for ENI-attached instances. Optimized security-group rule propagation to reduce time required for updates to take effect across AWS regions. Implemented global IAM protocols and data encryption at rest and in transit, establishing a security-first foundation for privacy-compliant data handling at enterprise scale. Collaborated with the team to develop frontend support chatbot using React and TypeScript, improving operator workflows and accelerating incident resolution. Partnered with Nitro and dataplane teams to keep control-plane representations aligned with hypervisor-enforced filtering on EC2 hosts.