2021 — NOW
01
Cyber Software Engineer · Lead
Lockheed Martin
Leading cross-functional assessment work where software delivery, mission systems, and security authorization meet.
CYBERSECURITY LEADER TECHNOLOGY BUILDER
I make critical
systems harder
to break.
Chim Yee is a security leader shaping resilient software at the intersection of mission, engineering, and human ingenuity.
EXPLORE
MY WORK
MY WORK
CURRENTLY BUILDING FROM FORT WORTH, TX
01 / 04
01 / WHO I AM
Security is not
a checkpoint.
It’s a mindset.
I lead small, high-trust teams that secure the software behind complex, mission-critical environments.
Originally from Hong Kong and shaped by stops in California, Arizona, and Texas, I bring over three decades of curiosity to every hard problem. My work translates intricate cyber risk into decisive, practical action.
MORE ABOUT MERMF / NIST 800-53✦Adversarial testing✦DevSecOps✦Vulnerability management✦Application security✦Embedded & avionics✦
02 / CAREER JOURNEY
Built where
the stakes are real.
From enterprise labs to the defense industrial base, every chapter has been about building confidence in the systems people count on.
2019 — 2021
02
Cyber Engineer SME
COLSA · Detachment 1, 47th Cyberspace Test Squadron
Embedded with the U.S. Air Force test community to assess aircraft and avionics cyber resilience, helping ensure mission systems met DoD cybersecurity requirements.
2016 — 2019
03
Lead Cyber Test Engineer
MCTSSA · USMC
Directed adversarial test events and translated real-world attack paths into stronger, field-ready systems.
2010 — 2016
04
Computer Engineer
HQ ISEC MED · DISA / UC APL
Evaluated firewalls, VPNs, IPS, and IDS products in a DISA certification lab, verifying their security posture and protocol compliance for the DoD Unified Capabilities Approved Products List.
2007 — 2010
05
Computer Engineer
HQ ISE TIC · U.S. Army
Managed an enterprise-scale integration lab and strengthened the security posture of Army applications.
EDUCATION
M.S. Computer Information Systems
Boston University
B.S. Computer Engineering
California State University, Sacramento
CREDENTIALS
Certified Ethical Hacker · Active
CompTIA Security+ · Active
Cisco CCNA · Routing & Switching
03 / IN THE WORKS
Not just
one kind of maker.
START A CONVERSATION 01 / SECURITY + AI
AI-assisted
code review.
Exploring smarter ways to surface and understand cybersecurity vulnerabilities in source code.
[ AI ]
02 / AFTER HOURS
Signal
& sound.
Building a home space for vocals and acoustic guitar.
03 / CULTURE + SYSTEMS
The living
library.
A growing inquiry into the books, ideas, and cultural forces that shape how the world works.
CASE STUDYIN DEVELOPMENT
A fuller portfolio is on its way. Until then, let’s connect on the work that matters. LINKEDIN
04 / DIGITAL TWIN
ONLINE · OPENROUTER
Ask the
digital twin.
Curious about my work, the path behind it, or what I’m building next? Start a conversation with an AI grounded in my professional story.
CHIM.YEE / DIGITAL TWIN READY