David Phillips

Architected a scalable telehealth platform using Node.js, Python, React, Kafka and AWS, migrating legacy monolith to event-driven architecture for high-availability virtual care serving thousands of concurrent patients. Designed and implemented real-time video conferencing, in-visit chat, and waiting room services using Node.js, WebRTC, Socket.IO, Redis, and Twilio, delivering sub-second latency and improving visit completion rates.

Built

Agentic AI clinical intelligence suite including clinical decision support, and ambient documentation using Python, LangChain, RAG, and OpenAI, enhancing triage accuracy and reducing provider documentation time.

Senior Software Engineer - Telehealth Platform at Amwell (2020-02 – Present)

• Architected a scalable telehealth platform using Node.js, Python, React, Kafka and AWS, migrating legacy monolith to event-driven architecture for high-availability virtual care serving thousands of concurrent patients.
• Designed and implemented real-time video conferencing, in-visit chat, and waiting room services using Node.js, WebRTC, Socket.IO, Redis, and Twilio, delivering sub-second latency and improving visit completion rates.
• Built Agentic AI clinical intelligence suite including clinical decision support, and ambient documentation using Python, LangChain, RAG, and OpenAI, enhancing triage accuracy and reducing provider documentation time.
• Developed a patient engagement and notification platform using Node.js, Twilio, and NestJS, driving higher adherence and significantly lowering no-show rates.
• Engineered responsive patient and provider portals using React, TypeScript, Redux, GraphQL, and real-time WebSocket integration, creating intuitive UX that boosted patient engagement and satisfaction.
• Led infrastructure-as-code deployment of microservices on AWS EKS/Kubernetes using Terraform, Docker, and Helm with full CI/CD pipelines, observability (Prometheus/Grafana/ELK), and automated testing, achieving 99.99% uptime.
• Implemented comprehensive unit testing, security, and HIPAA compliance across polyglot services (Jest, PyTest, Cypress), significantly improving code quality, minimizing production defects, and accelerating safe release velocity.
• Collaborated in Agile squads, mentored junior engineers on microservices and AI patterns, and leveraged Claude Code for spec-driven development and automated code generation, improving team productivity by 30%.

Software Engineer - Commerce Cloud at Salesforce (2015-07 – 2019-12)

• Led full-stack development of high-impact commerce microservices using Node.js, Python, React and AWS delivering scalable shopper experiences and increased conversion rates.
• Engineered cart service using Node.js, Express, Redis, AWS, resulting in management of millions of active carts with sub-second latency and lower abandonment.
• Developed dropship order service using Python, FastAPI, RabbitMQ, and PostgreSQL, routing orders to third-party vendors with async updates enhancing supply chain agility.
• Implemented comprehensive CI/CD pipelines and observability using Docker, Kubernetes, Prometheus, ELK Stack improving deployment speed and system reliability.
• Developed responsive React frontend components integrating multiple microservices for seamless omnichannel user experience.
• Collaborated in Agile cross-functional teams to deliver features aligned with business priorities.

Bachelor of Science – University of Washington (2011 – 2015)