● Owned architecture and delivery of an LLM-powered calendar experience serving 12M+ Alexa users at ~7000 TPS with 99.99% uptime
● Proposed a push-based update architecture to replace polling, reducing sustained load from ~7000 TPS to ~800 TPS org-wide and significantly improving scalability
● Set up and regionalized the Calendar Expert, authored instructions for new features, and partnered with science to improve top-level date/time understanding and parsing accuracy
● Architected and productionized a distributed, fault-tolerant Remarkable Alexa service, establishing reliability patterns adopted across the organization
● Implemented resilience patterns (caching, retry/backoff, fault isolation) to enable graceful degradation
● Defined and implemented externalized service APIs and front-end data contracts, enabling scalable integration patterns across backend and mobile clients
● Led a team of 5 engineers to deliver recurring calendar events, increasing customer retention by 38%
● Enabled EU and FE expansion of the LLM-powered Alexa calendar service by resolving ZAZ migration, provisioning, and KMS dependency blockers
● Architected the React Native data layer, transitioning from calendar-only retrieval to a unified calendar-and-reminders model with caching, pagination, and real-time updates
● Redesigned the metrics pipeline, improving reporting and reducing recurring operational load by 14%
● Improved onboarding conversion by 8% by fixing pain points in the OAuth linking funnel