Education

• [2019/07 - 2025/09] Huazhong University of Science and Technology (WNLO)
• Ph.D in Computer Science - Data Storage and Application Lab. - Advisor: Fang Wang & Dan Feng
• Research Interests: Key-Value Stores, File Systems, Cache, Storage System.

• [2015/09 - 2019/06] University of Electronic Science and Technology of China
• B. Eng in Software Engineering
• Micro-services

Work Experience

• [2025/10 — Now…….] ByteDance - Data - Infrastructure - Storage
• Intelligent Systems Researcher (Soaring Star Talent Program)

• [2023/07 — 2025/06] ByteDance - Applied Research Center
• Storage System R&D Intern, TerarkDB Team

• [2018/01 — 2019/06] SAP Labs China
• Java Developer Intern, Cloud Service Center

Publications

• Jianshun Zhang, Xun Deng, Fang Wang, Jiaxin Ou, Yi Wang, Hao Wang, Jianjun Chen, Peng Fang, Dan Feng. "Terark-DS: A High-Performance and Storage-Efficient Key-Value Separation Storage Engine on Disaggregated Storage" is Accepted by International Conference on Very Large Databases (VLDB, CCF-A), 2026

• Jianshun Zhang, Fang Wang, Jiaxin Ou, Yi Wang, Ming Zhao, Sheng Qiu, Junxun Huang, Baoquan Li, Peng Fang, Dan Feng. “Scavenger+: Revisiting Space-Time Tradeoffs in Key-Value Separated LSM-trees” is Accepted by IEEE Transactions on Computers (TC, CCF-A), 2025

• Jianshun Zhang, Fang Wang, Sheng Qiu, Yi Wang, Jiaxin Ou, Junxun Huang, Baoquan Li, Peng Fang, Dan Feng. "Scavenger: Better Space-Time Trade-Offs for Key-Value Separated LSM-trees" is Accepted by IEEE 40th International Conference on Data Engineering (ICDE, CCF-A), 2024

• Jianshun Zhang, Fang Wang, Chao Dong. "HaLSM: A Hotspot-aware LSM-tree based Key-Value Storage Engine" is Accepted by IEEE 40th International Conference on Computer Design (ICCD, CCF-B), 2022.

• Hao Wang, Jiaxin Ou, Ming Zhao, Sheng Qiu, Yizheng Jiao, Yi Wang, Qizhong Mao, Zhengyu Yang, Yang Liu, Jianshun Zhang, Jianyang Hu, Jingwei Zhang, Jinrui Liu, Jiaqiang Chen, Yong Shen, Lixun Cao, Heng Zhang, Hongde Li, Ming Li, Yue Ma, Lei Zhang, Jian Liu, Guanghui Zhang, Fei Liu, Jianjun Chen. "LavaStore: ByteDance’s Purpose-built, High-performance, Cost-effective Local Storage Engine for Cloud Services", International Conference on Very Large Databases (VLDB, CCF-A, Industrial Paper), 2024

• Hang An, Fang Wang, Dan Feng, Xiaomin Zou, Zefeng Liu, Jianshun Zhang. "A Scalable and Write-Optimized Disaggregated B+-tree with Adaptive Cache Assistance", IEEE Transactions on Cloud Computing (IEEE TCC, JCR-Q1), 2024

• Chao Dong, Fang Wang, Yuxin Yang, Mengya Lei, Jianshun Zhang and Dan Feng. "Low-Latency and Scalable Full-path Indexing Metadata Service for Distributed File Systems" is Accepted by IEEE 41th International Conference on Computer Design (ICCD, CCF-B, Best Paper Nomination), 2023.

• Hang An, Fang Wang, Dan Feng, Xiaomin Zou, Zefeng Liu, Jianshun Zhang. "Marlin: A Concurrent and Write-Optimized B+-tree Index on Disaggregated Memory" is Accepted by Proceedings of the 52nd International Conference on Parallel Processing (ICPP, CCF-B), 2023.

Projects

• Next-generation storage engine (LSM-tree based)
• I/O-efficient Garbage Collection
• Disaggregated Storage for LSM-tree

• Hotspot-aware LSM-tree based Key-Value Storage Engine
• Fine-grained read/write hybrid caching
• Hotspot-aware compaction strategy

• Distributed Block Device and Cache System
• Block device server implementation (tcmu)
• Ceph hierarchical cache acceleration

Skills

• Programming Languages: C++, Java, Python, Shell

• Tech Skills: Key-Value Storage Systems (LevelDB and RocksDB), Distributed Storage Systems (Ceph)

Talks & Services

• Talks:
• Scavenger: Better Space-Time Trade-Offs for Key-Value Separated LSM-trees, ICDE'24 (Utrecht, Netherlands)
• HaLSM: A Hotspot-aware LSM-tree based Key-Value Storage Engine, ICCD'22 (Remote).

• Services:
• FAST'26 Artifact Evaluation Committee Member
• FAST'25 Artifact Evaluation Committee Member
• FAST'24 Artifact Evaluation Committee Member
• International Conference on Data Engineering (ICDE 2026) Sub-Reviewer
• Extending Database Technology (EDBT 2026) Sub-Reviewer
• Journal of Systems Architecture (JSA) Sub-Reviewer