Sam – React, Typescript, Node.js

A real-time monitoring and analytics SaaS platform built for enterprise-scale VoIP communications. It provided call centers and corporate telephony teams with full visibility into their communication infrastructure, enabling real-time tracking of call quality, system performance, and key operational metrics. Key features included live dashboards with customizable KPIs, advanced reporting and data export tools, historical analytics for trend and capacity planning, automated alerts for service degradation, and detailed audit logs for compliance. The platform helped large organizations managing high call volumes maintain service quality, optimize resources, and quickly identify and resolve performance issues.

• Led a small development team in implementing multiple backend microservices with real-time data streaming;
• Built a pixel-perfect, highly customizable dashboard interface with drag-and-drop widgets, complex data visualizations, and real-time updates
• Implemented a comprehensive role-based access control system with user impersonation capabilities;
• Developed advanced reporting features with cursor-based pagination and virtualization for handling large datasets;
• Created a fully-featured web phone application integrated directly into the platform;
• Designed and deployed a microservices architecture using websockets, MongoDB ChangeStreams, and Node.js for real-time data delivery;
• Established monorepo structure and development workflows for the team;
• Built scalable front-end components using React with modern patterns for performance optimization.

A web and mobile application for appointment scheduling developed for a large healthcare provider during the COVID-19 pandemic. The platform allowed patients to search for available testing and vaccination appointments, book and manage time slots, and complete pre-screening forms online. Core features included real-time availability tracking, automated confirmations and reminders, appointment modification and cancellation, and integration with existing patient management systems. The solution supported millions of users, streamlining high-volume scheduling, reducing administrative workload, and improving the overall patient experience during a critical public health period.

• Developed the core appointment scheduling interface enabling patients to search, book, and manage COVID-19 testing and vaccination appointments;
• Built an interactive map integration with Google Maps API for location discovery and availability visualization across facility networks;
• Implemented advanced search and filtering features to help patients find locations offering specific services and available time slots;
• Created dynamic form systems for patient intake, pre-screening questionnaires, and appointment details collection;
• Developed a notification system for appointment confirmations, reminders, and status updates;
• Optimized search performance to handle real-time availability queries across multiple facilities during high-traffic periods;
• Delivered critical features under tight timelines during the height of the pandemic response.

A comprehensive design system created to unify a large healthcare organization's fragmented digital ecosystem. Over time, multiple frameworks such as jQuery, Angular, React, and React Native had led to inconsistencies and maintenance challenges. The new system introduced a framework-agnostic component library built with Web Components and Stencil.js, ensuring seamless integration across all tech stacks. It included an accessible, reusable UI component set, detailed documentation, theming for brand consistency, and developer tools for rapid adoption. The solution significantly improved development efficiency, consistency, and scalability across all digital products.

• Served as principal engineer, architecting and implementing a company-wide design system for a Fortune 500 healthcare organization;
• Built a comprehensive, framework-agnostic component library using Stencil.js and web components, enabling seamless integration across jQuery, Angular, React, and React Native codebases;
• Designed and developed accessible, reusable UI components with WCAG compliance and consistent theming capabilities;
• Created extensive documentation, usage guidelines, and developer tooling to facilitate adoption across internal teams;
• Established component API standards and architectural best practices for the design system;
• Reduced development time and technical debt by enabling component reuse across the organization's fragmented technology ecosystem.

A cross-platform ticketing and guest experience app built with React Native Web for a major theme park operator, available on mobile, tablet, and desktop. The platform served as the primary ticketing system, offering dynamic pricing, multiple ticket tiers, and line-skipping upgrades. Key features included real-time ride availability and wait times, promotional offers, interactive park maps, mobile ticket management, and personalized recommendations. Serving millions of visitors annually, the app streamlined the guest journey, improved operational efficiency, and enabled flexible pricing and upsell opportunities.

• Developed the core calendar-based ticketing system with dynamic pricing across multiple date ranges and ticket tiers (regular, VIP, platinum);
• Built a cross-platform user interface using React Native Web, ensuring a consistent experience across mobile, tablet, and desktop devices;
• Implemented complex pricing logic to handle date-based variations, tier differentiation, and promotional pricing;
• Created an intuitive calendar selection interface for browsing availability and pricing across multiple days;
• Integrated ticket purchase flow with payment processing and mobile ticket delivery systems;
• Optimized performance for handling high-traffic periods during peak park seasons