# Hao Wen > Staff Software Engineer at Vesoft for NebulaGraph - A graph database built for super large-scale graphs with milliseconds of latency Location: San Francisco, California, United States Profile: https://flows.cv/haowen ## Work Experience ### Staff Software Engineer and Team Lead @ NebulaGraph Database Jan 2021 – Present | Cupertino, California, United States • Research and develop Nebula Graph, a fully open-source graph database, built for super large-scale graphs with milliseconds of latency. • Lead the caching system of NebulaGraph, including storage cache, cloud cache, etc. • Deliver end-to-end NebulaGraph database solutions for enterprise customers, working closely with infrastructure and product teams to optimize query strategies, cluster sizing, and system architecture for real-world business applications. • Drive technical innovation and product direction. Distill customer feedback and critical production insights into roadmap priorities, collaborating with cross-functional teams to drive feature development and ensure seamless delivery of key initiatives ### Software Engineer @ Twitter Jan 2019 – Jan 2021 | San Francisco Bay Area • Develop ads server with high throughput, low latency, high availability and reliability. ### Software Engineer Intern @ Twitter Jan 2018 – Jan 2018 | San Francisco Bay Area • Designed and implemented a system that can automatically scale up / down Presto workers based on the workload at real time, so that resources are saved without performance loss. • Extended the system to work on both Aurora and Google Cloud Platform (GCP). ### Innovation Pod Intern in CTO @ Veritas Technologies LLC Jan 2016 – Jan 2016 | Roseville, MN / Mountain View, CA • Researched, designed and developed docker live migration to migrate stateful applications from one host to another with minimal downtime. • Worked in agile development method and worked with 2 other engineers and 1 MBA as a scrum team. • Researched, designed and implemented solutions to solve problems encountered in migrating application status, network and storage in docker. • Won Intern Innovation Showcase as “Best Innovation Pod” among all intern teams. The judging was based on market research, innovation, design, implementation and presentation. And most importantly, it is the true teamwork that impressed most according to the executives of the company. • Patents – Approved by Veritas and filed application on a patent on live migration of software containers. ### Software Designer in CTO @ Hewlett Packard Enterprise Jan 2015 – Jan 2015 | Andover, MA • Solved enabling HP StoreVirtual Block as an option for Cinder backend storage in the Canonical OpenStack. • Designed and implemented solutions to automatically deploy and scale out HP StoreVirtual with Juju. • Worked closely with engineering from Canonical and contribute to open-source community. ### Software Designer in CTO @ Hewlett Packard Enterprise Jan 2014 – Jan 2014 | Fremont, CA Characterize emerging deduplication feature of 3PAR SSD array ## Education ### Doctor of Philosophy (PhD) in Computer Science University of Minnesota ### Bachelor’s Degree Huazhong University of Science and Technology ## Contact & Social - LinkedIn: https://linkedin.com/in/hao-wen-09609834 --- Source: https://flows.cv/haowen JSON Resume: https://flows.cv/haowen/resume.json Last updated: 2026-03-29