Elgin Yu
Greensboro,NC
Summary
Experienced Cybersecurity Engineer with a Master’s in Cybersecurity, 6+ years of experience, and TS/SCI clearance architecting resilient defenses for high-assurance, classified networks and global enterprise infrastructures.
Overview
2027
2027
years of professional experience
1
1
Certification
Work History
Network Security Engineer
VF Corp
Greensboro, NC
2025 - Current
- Lead the design and maturation of high-assurance security architectures across global data centers, enterprise campuses and hybrid cloud environments, utilizing threat models like STRIDE, MITRE (ATT&CK, D3FEND, EMB3D) to identify architectural risks and implement robust defense-in-depth measures.
- Translate intricate security standards into actionable technical roadmaps for software and architecture teams, streamlining project delivery by eliminating ambiguity in security implementation.
Systems Integrator and CCNA Instructor
Army National Guard
Burlington, NC
2020 - Current
- Led team in protection of classified networks by implementing DoD security protocols, access controls, encryption standards, and boundary protections, achieving compliance with IA and RMF requirements while applying core cybersecurity principles to harden enterprise operating systems and network configurations.
- Served as a Instructor for Military Intelligence personnel, breaking down complex network security protocols; mentored junior technicians to improve unit-wide technical proficiency and ensure the secure operation of mission-critical classified infrastructure.
Network Engineer
Sigma Defense Systems LLC
Fayetteville, NC
2023 - 2025
- Managed the security integrity of 30+ global ISR (Intelligence, Surveillance, and Reconnaissance) transport systems; applied critical thinking to root-cause diagnostics to identify potential threats and ensure the resilience of 24/7 mission-critical operations.
- Designed, implemented, and maintained network solutions across configuration and deployment phases to meet security and compliance requirements in regulated government environments.
Education
MS - Cybersecurity and Information Assurance
Western Governors University
BS - Info Systems and Supply Chain Management with Concentration in Cybersecurity
University of North Carolina At Greensboro
Skills
- Security Architecture
- Network Security Design
- Incident Response
- NIST SP 800-53 (RMF)
- Vulnerability Analysis
- Cyber Threat Intelligence
- Vulnerability Research & Analysis
- Threat Modeling (STRIDE, MITRE ATT&CK)
- Attack Surface Modeling
- Compliance & Regulatory Security
- Cloud Security
- Technical Leadership
- Documentation & Reporting
- Secure Coding Practices (SDLC)
- Adaptability
- Systems Thinking
Certification
- DISA ACAS – Nessus/Tenable.sc
- CISSP
- CISM
- CompTIA SecurityX (CASP)
- Cisco ENCOR – CCNP Core
- Cisco Certified Network Associate (CCNA)
- Zscaler Transformation Admin
- Check Point Security Admin
- CompTIA CySA+
- CompTIA Security+
- CompTIA Pentest+
- Check Point PenTesting Associate
- Tufin Certified Security Expert
Timeline
Network Security Engineer
VF Corp
2025 - Current
Systems Integrator and CCNA Instructor
Army National Guard
2020 - Current
Network Engineer
Sigma Defense Systems LLC
2023 - 2025
MS - Cybersecurity and Information Assurance
Western Governors University
BS - Info Systems and Supply Chain Management with Concentration in Cybersecurity
University of North Carolina At Greensboro