Kevin Pei

New York, NY

• Cut core document workflow load time 65% with parallel server-side queries and ElastiCache.
• Consolidated 60+ HTTP Lambda functions into a single Express Lambda behind API Gateway — cold-start surfaces from 60 to 1, provisioned memory down 93%, monthly infrastructure cost down 29%.
• Migrated 100,000+ insurance policies off a legacy administration platform, writing reconciliation logic that hit 99.9% field-level accuracy against source.
• Shipped 5 insurance-operation workflows end to end across REST APIs and OpenSearch.

New York, NY

• Extend Corelink's JS and Python open-source libraries — a data-agnostic transport framework for real-time applications.
• Reduced streaming jitter 20% and added support for 4+ protocols, enabling browser-native streaming.
• Built a credential-provisioning REST API with TTL leases and cleanup, replacing manual credential workflows.

Shanghai, China

• Scaled a securities-exam prep platform to 500+ concurrent users by optimizing query and request handling.
• Implemented role-based access across test modules, admin dashboards, and instructor performance analytics.
• Built timed-exam state management with Valtio, enforcing exam progress and sequential navigation.