Justin Y.
Software Engineer II at Microsoft
- Role
- Software Engineer Ii at Microsoft
- Location
- Redmond, WA, US
- LinkedIn followers
- 500 followers
About Justin Y.
Currently a Software Engineer at Microsoft in the Azure Storage team (Python, Typescript, React, KQL, Azure Functions), performance testing and troubleshooting new high performance data center hardware SKUs (CPU, SSD, NIC) before procurement and deployment. Previously a full stack (C#, Typescript, React, M) software developer at Epic Systems, handling radiology imaging workflows. Graduated from Duke University with a Bachelor of Science in computer science and chemistry (double major).
Experience
Software Engineer Ii
Sep 2025 — Present · US
Diagnosed and resolved performance bottlenecks in TCP workloads on virtual NUMA-enabled high CPU core count clusters by changing Receive Side Scaling (RSS) profile from ClosestStatic to NUMAStatic, which balanced core utilization across vNUMA nodes, leading to a 190% increase in max throughput, 17% boost in max IOPS, and 120% improvement in mixed IO throughput- Improved benchmarking report loading latency by 96%(3s to 100ms), achieved by re-architecting data fetching strategies, implementing lazy loading for heavy API calls, and optimizing frontend rendering to drop Largest Contentful Paint from >2.5s to <1s.
Education
Durham Technical Community College
Emergency Medical Technology/Technician (EMT Paramedic)
2019 — 2019
Duke University
Bachelor of Arts - BA, Computer Science
2018 — 2022
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