Summary
Overview
Work History
Education
Skills
Timeline
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Weichen Xu

NEWARK,CA

Summary

Innovative and versatile Software Engineer with over 6 years of experience in diverse background developments. Equipped with a strong foundation in low-latency high-throughput network datapath, Borg job scheduler efficiency, Youtube integrated billing service and high-frequency trading platform. Proven expertise in designing and implementing cutting-edge solutions to meet various complex challenges.

Overview

7
7
years of professional experience

Work History

Software Engineer

Google LLC
12.2018 - Current
  • Spearheaded 5-member engineering team to design, implement, test, and launch groundbreaking billing integration platform, enabling reselling of YouTube paid products through global external partners, including mobile carriers and ISP providers. Successfully integrated platform with xx partners, resulting in monthly revenue generation of x $M.
  • Developed robust packet-switching framework within GCE ingress datapath, enabling automatic network blackhole detection and repathing for enhanced reliability. Achieved significant improvement in ingress reliability from 99.9% to 99.999%. Recognized with prestigious GCP Technical Impact award in H2 2022.
  • Designed and implemented high-performing packet sampling system for random packet selection and reporting across Google's network endpoints. Leveraged eBPF for kernel network traffic and customized datapath for kernel-bypass framework, resulting in enhanced traffic monitoring quality and significant operational cost reduction. Received prestigious GCP Technical Impact award in H1 2022.
  • Pioneered implementation of innovative overcommit system in GCP, resulting in 1.5% fleetwide improvement in CPU and Memory efficiency. This led to annual cost reduction of xx $M. Recognized with prestigious GCP Technical Impact award in H1 2021.
  • Extensive involvement in development of low-latency high-throughput networking features, including networking probing and monitoring, L3/L4 load balancing, traffic shaping, egress routing, kernel eBPF, ACL enforcement, and DDoS throttling.

Software Engineer

Tower Research Capital
06.2017 - 12.2018
  • Successfully implemented state-of-the-art microwave transmission service across multiple regions, significantly reducing market data latency to xx ms between Chicago and New York exchanges. Additionally, achieved over 20% cost savings and increased bandwidth efficiency.
  • Optimized packet capturing system for efficient collection and retention of egress traffic through packet mirroring from switches. Enabled traders to access and replay historical order events with hardware timestamps, while also serving as data replication for reconciliation.
  • Developed low-latency market data solutions as both on-premises library and pub/sub service using UDP multicast.

Software Engineer Intern

Akuna Capital
05.2016 - 08.2016
  • Successfully implemented and benchmarked various data structures to construct high-performance market order books.
  • Applied generic templates, cache-line alignment, data locality, and branch prediction to significantly reduce end-to-end latency.

Education

Master of Science - Computer Science

New York University
Brooklyn, NY
06.2017

Bachelor of Engineering - Software Engineering

Shanghai Jiaotong University
Shanghai
06.2015

Skills

  • C/C, Python, Java, Go (familiar), Rust (familiar), Perl (familiar)
  • Kernel bypass, ebpf, networking, linux
  • Spanner, Mysql, Kafka, etcd, TiKV
  • Vim, Git

Timeline

Software Engineer

Google LLC
12.2018 - Current

Software Engineer

Tower Research Capital
06.2017 - 12.2018

Software Engineer Intern

Akuna Capital
05.2016 - 08.2016

Master of Science - Computer Science

New York University

Bachelor of Engineering - Software Engineering

Shanghai Jiaotong University

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Weichen Xu