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Yi Zhang

@yizhang

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Senior Storage Systems Engineer specializing in high-throughput storage solutions.

China

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What I'm looking for

I am looking for a role that challenges my technical skills and offers opportunities for growth in a collaborative environment.

I am a Senior Storage Systems Engineer with a strong background in designing and developing high-performance storage solutions. At Xiaohongshu, I led the end-to-end design of an object storage engine that manages over 500 PiB of data with exceptional durability. My focus on throughput and reliability has enabled me to build optimized single-node engines for both HDD and NVMe, ensuring that our production systems meet the highest standards.

Previously, I worked at Tencent, where I maintained and improved a Raft-based metadata consistency layer, achieving over 99.999% system availability. I also designed a magnetic tape storage scheduler that significantly reduced archive costs through intelligent optimization. My experience spans various technologies, including async programming and large-scale health monitoring, which have equipped me with the skills to tackle complex challenges in storage systems.

Experience

Work history, roles, and key accomplishments

Senior Storage Systems Engineer

Xiaohongshu

Nov 2023 - May 2025 (1 year 6 months)

Led the end-to-end design and development of Xiaohongshu’s object storage engine, delivering a production system managing 500+ PiB of data with 11 nines durability. Built single-node engines optimized for both HDD and NVMe, focusing on throughput and reliability. Collaborated cross-functionally to benchmark, deploy, and maintain storage systems in production.

HDD Performance Tuning System Design Benchmarking Deployment

Storage Systems Engineer

Tencent

Jul 2020 - Nov 2023 (3 years 4 months)

Maintained and improved SCAL, a Raft-based metadata consistency layer for object storage, enhancing unit-level reliability and achieving 99.999%+ system availability. Designed and implemented Captain, a magnetic tape storage scheduler, reducing deep archive costs by 30% through layout optimization and intelligent read/write sequencing. Built Collector, a scalable health inspection platform for 10M

Raft Magnetic Tape Systems Large Scale Health Monitoring Asynchronous Programming System Availability Cost Optimization Distributed Systems

Big Data Development Intern

ByteDance

Jun 2019 - Sep 2019 (3 months)

Refactored the caching layer and internal DSL of a behavioral analytics platform. Improved query flexibility and reduced latency for key analytical workloads.

Caching DSL Query Optimization Refactoring Data Processing

Back-end Development Intern

Eyepetizer

Oct 2016 - Aug 2017 (10 months)

Built backend services for messaging, web crawlers, and third-party API integrations. Developed internal tools to improve engineering workflow and operational efficiency.

Backend Development Messaging API Integration Internal Tools Software Development System Integration