Gary Matthews

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Senior Backend Engineer

Twitch

Aug 2019 - Current (7 years)

• Executed 'Wexit', migration from Ruby to Go microservices on AWS with Nginx, boosting scalability 5x and cutting latency by 70%. • Utilized a new RPC framework for Go called Twirp, improved simplicity, reliability, and performance, powering dozens of backend systems. • Improved the load latency by 20x from 4. 1 sec to 0.2 sec by employing prefetching and lazy loading, resolved the slow loading(10s) problem in Pacific countries. • Rebuilt a Python-based IRC chat system in Go, improving performance and reliability, and cutting server resource use by 30%. • Elevated system uptime from 99.9% to 99.99% by implementing advanced high availability strategies. • Enhanced user experience by creating an ML-powered automatic emote review system
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Senior Full-Stack Engineer

DraftKings

Jun 2014 - Jun 2019 (5 years 1 month)

• Migrated hundreds of microservices to the cloud with zero downtime, ensuring uninterrupted service during critical transitions. • Engineered high-performance state management with Apache Kafka, handling billions of events daily with ultra-low latency and self-healing capabilities. • Developed robust RESTful APIs, enhancing system reliability and streamlining communication between front-end and back-end systems. • Led the design of a scalable React/Redux front-end architecture for a high-traffic sports betting platform, significantly improving user interaction experience. • Revolutionized web UI performance by implementing lazy rendering and the Intersection Observer API, reducing load times by 60%. • Drove cross-functional collabora

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