Maddox Huang (Yigeng Huang)

IT Support · Network & Systems · Security Operations

Auckland, New Zealand Open to IT roles

I keep end-user fleets and the infrastructure behind them running. Most recently I handled endpoint management and enterprise IT operations for a mixed Windows, macOS and Linux fleet in Beijing; before that I read Networks and Cybersecurity at AUT. I like the problems that start as “it just stopped working” and end in a packet capture or an event log.

Experience

IT Engineer — Hanshow Technology Co., Ltd.

Jan 2026 – Jul 2026

Beijing, China

  • Endpoint support and device management across a mixed Windows, macOS and Ubuntu fleet.
  • Deployed and troubleshot DLP and zero-trust endpoint clients, including root-cause work on a Linux workstation where the MDM agent contended for DRM master and dropped the video signal.
  • Resolved Microsoft 365 authentication failures, Windows domain trust breakdowns and BitLocker recovery across the fleet.
  • Managed asset inventory and acted as liaison with hardware and software vendors.

Technical Skills

Endpoint & Identity
Windows 10/11macOSUbuntu Active DirectoryGroup Policy Microsoft 365BitLockerMDM
Network & Infrastructure
TCP/IPVLAN & routingDNS Reverse proxyVPNDocker LinuxZFSNAS / QNAP
Security
DLPZero TrustHardening Log & SIEM conceptsHost forensics Phishing analysis
Tooling
PythonPowerShellBash SQLiteGit

Home Lab & Self-Directed Work

INFRASTRUCTURE

Self-hosted service stack

QNAP QuTS hero on ZFS running Docker workloads behind a hardened reverse proxy, with automated container update monitoring and per-service access rules.

NETWORKING

Segmented home network

A virtualised router appliance as a bypass gateway, with remote access designed around CGNAT constraints using tunnelled and mesh-VPN approaches instead of port forwarding.

PERFORMANCE

Media transcoding bottleneck

Traced stuttering 4K60 playback past the obvious server-side suspects to a client codec level incompatibility that was forcing a 4.5 fps server transcode — measured with VAAPI benchmarks against disk and RAM-disk sources.

FORENSICS

Anomalous egress investigation

Investigated a 209 GB upload spike using Windows SRUM data and proxy topology analysis to separate a compromised credential from a local device exfiltrating data.

Education & Certification

Bachelor of Computer and Information Sciences

Auckland University of Technology

Major in Networks and Cybersecurity

Contact

Based in Auckland and available for interviews. The fastest way to reach me is email.

email LinkedIn GitHub