Yuxuan Liu — Senior Software Engineer · Test Automation
Hello World!
I'm Yuxuan Liu
Senior Software Engineer · Test Automation @ Spokeo
Extensive hands-on experience in software design, development, optimization, and testing. Previously at Amazon, SiriusXM, and more.
Just Call Me Yuxuan
Computers are my biggest passion and have accompanied me throughout my life. I still remember my first computer, a giant IBM PC that my father bought when I was five.
Like many teenagers, I primarily used the PC to play video games. But in the process, I was fascinated by what a computer could do. Therefore, in middle school, I began attempting to learn some basic coding in Java.
As I entered college, I began considering coding and software engineering as my future career and started participating in multiple internships. After graduation, I went to Amazon as a full-time software engineer. In 2022, artificial intelligence quickly became one of the hottest topics in the industry, so I pursued a Master's in CS at UIUC to future-proof my career.
I'm now a Senior Software Engineer focusing on Test Automation at Spokeo, based in Los Angeles.
I like music, especially EDM (Dubstep, Drum & Bass, Future House, Techno). I also love video games — Portal and the Mass Effect trilogy are my favorites.
Professional Experiences
A journey through some great companies
Spokeo
Senior Software Engineer - Test Automation
Feb 2024 - Present • Pasadena, CA
- Leading test automation initiatives with Cypress, TypeScript, RSpec, and Ruby
- Built and open-sourced cypress-parallel-fast (npm) — dynamic task-queue parallelization for Cypress
- Built @camppp/cypress-to-playwright (npm) — runtime command translation for migration
- Driving CI/CD improvements with Docker and Jenkins
SiriusXM
Software Engineer Intern
May 2023 - Aug 2023 • Urbana-Champaign, IL
- Designed an event-driven monitoring pipeline using AWS Lambda, NodeJS, and CloudFormation
- Reduced cloud monitoring costs by 95% by eliminating manual CloudWatch Insights scheduling
- Built serverless infrastructure for S3 record loading/preprocessing with Lambda and SNS
- Designed Kibana dashboards and developed analytics logic with KQL
Amazon
Software Development Engineer I
Jul 2021 - Jul 2022 • Greater Seattle Area
- Designed payments core back-end in Java and AWS for payment method management and processing
- Re-architected retail credit card reader registry into modular, config-driven components
- Decomposed the registry into RESTful microservices, event processors, and NoSQL metadata stores
- Integrated payment processing with Amazon's biometrics platform across software and hardware
- Launched core logic in the 'Just Walk Out' experiment for Amazon Go / Fresh / Whole Foods, serving 10K+ TPS
PerBlue
Software Engineer Intern
May 2020 - Aug 2020 • Madison, WI
- Developed back-end features of a cross-platform mobile game using the C# Orleans framework
- Built support server modules in C# for real-time platform management
- Developed testing infrastructure across the full-stack web application
Baidu
Software Engineer Intern
May 2019 - Aug 2019 • Beijing, China
- Built data pipelines across Apache Hive, Redis, and MySQL using HiveQL, SQL, and DataX
- Contributed to the Huiyan Data Analytics Platform supporting thousands of retailers
- Developed full-stack web app in JavaScript/PHP (MVC) with drill-down and pivot analysis
- Optimized Hive partitioning, reducing petabyte-scale daily jobs from 10h to 3h (-40% peak usage)
NavInfo
Software Engineer Intern
May 2018 - Aug 2018 • Beijing, China
- Developed a Kalman filter-based GPS noise filtering solution in Java
- Implemented a Hadoop-based route distance service over HDFS-stored coordinates
- Optimized companywide Elasticsearch instances used for Geoshape intersection
Projects
Open-source work, including tools I built for test automation at Spokeo
cypress-parallel-fast
Parallelize Cypress test cases within and across spec files using a dynamic task queue. Faster than file-level splitting because individual it() blocks are distributed across workers.
@camppp/cypress-to-playwright
Translates Cypress commands to Playwright equivalents at runtime, enabling gradual migration without rewriting test suites.
Erroneous Vector Assessment (EVA)
Weightlifting form correction app using computer vision and pose estimation. Pairs a phone camera with IMU for real-time feedback.
Video Style Transfer
Deep learning video style transfer built on top of StyTR-2, extending transformer-based image style transfer to the temporal domain.
MadBus: Real-Time Bus Tracker
Real-time bus tracker for the Madison, WI Metro Transit network. Originally built in PHP/JS in 2018 — recently ported to Next.js API routes and embedded into this site.
WeChat Friendship Checker
Android app that detects one-sided WeChat contacts by analyzing the moments visibility graph.
Skills
Built at Spokeo, Amazon, SiriusXM, PerBlue, Baidu & NavInfo
Top Skills · Endorsed on LinkedIn
Languages
Frameworks
Cloud & DevOps
AI & ML
Data Engineering
Testing
Get in Touch
Open to interesting conversations and opportunities
Reach Me