Qian Cui

Senior Applied Scientist (Tech Lead), Amazon GuardDuty I build practical security intelligence systems that connect research with production.
Seattle, WA · Anomaly Detection · Agent Security

About me

About

Who I Am

I am an applied scientist and technical lead focused on cybersecurity. My work sits at the intersection of machine learning, large-scale systems, and security operations. I care about building solutions that are not only accurate in experiments, but reliable in real production environments.

Professional Journey

2019 – Present Amazon (AWS GuardDuty) Senior Applied Scientist (Tech Lead)
2010 – 2015 Samsung Electronics Senior Software Engineer (Linux kernel / wireless chipset)
2016 – 2019 University of Ottawa PhD studies in Computer Science (Cybersecurity + ML)

How I Work

I start from real operator pain points and convert them into measurable objectives.
I design end-to-end systems: data, modeling, inference, and operational feedback loops.
I optimize for security impact, reliability, latency, and cost together.
I prefer clear evidence, reproducible evaluation, and practical decision support for humans.

Beyond Work

Outside work, I enjoy traveling and photography with my family. I like observing details, patterns, and stories in everyday life—the same mindset that helps me in research and engineering.