About Me

About Me

I am a Ph.D. candidate in Computer Science at the University of North Carolina at Chapel Hill, working on the design and implementation of efficient and secure data management systems. My current research focuses on write-optimized index data structures and secure key-value stores.

You can reach me at jyizheng@gmail.com or visit my GitHub profile.

Research Interests

• Efficient and secure data management systems
• Write-optimized index structures for high-speed storage
• Secure key-value stores using SGX/TrustZone

Professional Experience

Researcher, Infrastructure and System Lab, ByteDance Inc. (Jan 2022 - Present)

• Designed and implemented efficient storage systems for cloud databases.
• Developed high-performance block storage systems.

Research Intern, Advanced Technology Group, NetApp Inc. (May 2018 - Aug 2018)

• Optimized BetrFS for SSD devices, improving sequential write performance by 2x.

Software Engineer Intern, vSan Team, VMWare Inc. (May 2017 - Aug 2017)

• Optimized Copy-on-Write B-tree, improving read performance by 50%.

Technology Skills

• Programming Languages: Rust, Python, C/C++
• Platform: Pytorch, Kubernetes, Linux Kernel

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