Infrastructure and Software Engineer
US Citizen

Email: percy [at] percyyeung.com

LinkedIn: @PercyYeung
Web Page: percyyeung.com
GitHub: @PercyJax

IT Manager
Dec 2020 - Present

• Managed and trained team members on infrastructure systems.
• Planned for and executed infrastructure improvement initiatives.
• Tracked departmental budgets and purchases.
• Liased with HR to build employee onboarding and offboarding automation pipelines.
• Represented IT interests as a member of the CISO committee.
• Acted as a subject matter expert for the company in ProxMox virtualization, Linux systems, IT infrastructures, and networking.
• Engineered solutions for techical problems and challenges from other teams.
• Built a modern, secure, and cloud-based work environment for upcoming CMMC requirements.
• Worked on up-and-coming products as a member of various cross-fuctional teams.

Senior Engineer
Dec 2019 - Dec 2020

• Developed automation software for infrastructure administration tasks.
• Provided Computer Networking consultation and training for Project Engineers.
• Architected advanced networks with modern routing and switching protocols.
• Led a complete redesign and modernization of the company network with a fiber optic internal network backbone and internal OSPF routing to multiple networks (AWS, Azure, GCP, Pritunl/OpenVPN concentrator) that supports an office of 160+ users following a HQ migration.
• Built the Tactical Network Operations Exercise, a simulation of Military Tactical Networks for Employee Training and testing of CodeMettle Software.
• Created an ephemeral sandbox network with virtualized Cisco routers and switches restored nightly using GNS3 and custom scripting that implements BGP, OSPF, VLANs, SDNs, VPNs, etc. over simulated satellite links to test software destined for military DIL (Disconnected, Interrupted, and Low-Bandwidth) networks.
• Investigated CMMC compliance parameters and researched costs and options.

Software Engineer
Aug 2018 - Dec 2019

• Assisted in designing lab environments to emulate customer infrastructure.
• Maintained internal IT and Networking Infrastructure.
• Designed lab environments to emulate customer infrastructure for product testing.
• Implemented Microsoft Azure Active Directory for the company.

Associate Software Engineer
May 2015 - Dec 2016

• Developed Python extensions (Translators) for core software.
• Assisted in designing lab environments to emulate customer infrastructure.
• Designed Network Topologies based on customer signal paths.
• Created Grafana Data Source plugin with JavaScript to interface with core software NoSQL database (Apache Solr) to visualize customer historical data.

Cyber Security Analyst
May 2016 - Dec 2017

• Monitored and responded to security alerts and notices
• Triaged incoming security incidents and reviewed vulnerability reports
• Identified compromised systems using FireEye, Suricata, and other IDEs
• Performed digital forensics and penetration testing
• Received Splunk Power User Certification (Cert-103294)

Remote Work Office Conversion - CodeMettle
Mar 2020 - Jun 2020

• Overhauled VPN infrastructure for mass remote work.
• Created remote management solutions for infrastructure and endpoints.

Tactical Network Operations Simulation Exercise - CodeMettle
Apr 2019 – Jan 2020

• Built simulated Military Tactical Networks for Employee Training and testing of CodeMettle Software

CodeMettle Network Playground - CodeMettle
Apr 2019 – Mar 2020

• Created ephemeral sandbox network with virtualized Cisco routers and switches restored nightly using GNS3 and custom scripting
• Implemented BGP, OSPF, VLANs, SDNs, VPNs, etc. over simulated satellite links to test software destined for military DIL (Disconnected, Interrupted, and Low-Bandwidth) networks

New CodeMettle HQ Network - CodeMettle
Nov 2018 – Feb 2019

• Led a complete redesign and modernization of the company network following a HQ migration
• Fiber Optic internal network backbone
• Supports an office of 160+ users
• Internal OSPF routing to multiple networks (AWS, Azure, GCP, Pritunl/OpenVPN concentrator)

CMMC Compliance Planning - CodeMettle
Mar 2020 - Present

• Investigated compliance parameters and researched costs and options

Custom Grafana Data Source Plugin for Solr - CodeMettle
May 2017 - Dec 2017

• Created Grafana Data Source plugin with JavaScript to interface with core software NoSQL database (Apache Solr) to visualize customer historical data

Aug 2013 - May 2018
Bachelor of Science, Computer Engineering
Major GPA: 3.84/4.00
Cumulative GPA: 3.73/4.00

English - Native
Chinese (Cantonese) - Native
Chinese (Mandarin) - Strong Proficiency
Russian - Elementary Proficiency

• Computer Networking
• Bash
• Python
• C/C++
• Java
• PowerShell
• JavaScript
• PHP
• Amazon AWS
• Microsoft Azure
• ProxMox
• VMWare ESXi
• GNS3
• Computer Networking
• Linux
• Windows
• Cisco IOS
• Vyatta
• Git