Vu Sy

Cybersecurity professional with more than 13 years of experience in enterprise security operations, security architecture and deployment of security solutions. Experienced across multiple environments including system integrators, enterprise banking infrastructure and global cybersecurity vendors. My core strength lies in operating and optimizing enterprise security systems to improve visibility, stability and threat detection capabilities.

I focus on building mature cybersecurity programs that combine strong security operations, governance and proactive security practices such as vulnerability management and penetration testing.

Customer Support Manager at Trend Micro (2018-01 – 2026-04)

Provide advanced cybersecurity technical leadership and enterprise security support for large customers with high security requirements. The role focuses on supporting customers in deploying, operating and optimizing enterprise security infrastructures based on Trend Micro security platforms.

• Provide advanced technical support and cybersecurity consulting for enterprise customers deploying Trend Micro security solutions.
• Support customers in operating, optimizing and troubleshooting enterprise security platforms.
• Conduct security health checks and security posture assessments to evaluate system effectiveness and recommend improvements.
• Assist customers in investigating and troubleshooting complex cybersecurity incidents.
• Work closely with enterprise security teams to optimize security policies, detection rules and monitoring systems.
• Provide technical training, knowledge transfer and operational guidance for customer security teams.
• Supported enterprise-grade security deployments for customers with high security requirements and complex infrastructures.
• Directly handled and resolved multiple critical security incidents for large enterprise customers, particularly within the banking and financial sector.
• Provided direct technical support for major banking institutions including Asia Commercial Bank (ACB), LPBank and Eximbank, … assisting their security teams in incident investigation.
• Worked closely with enterprise SOC teams to analyze threats, optimize security policies and improve detection capabilities.
• Successfully resolved complex security platform issues in high-availability production environments, ensuring minimal service disruption.
• Designed and hosted Capture The Flag (CTF) cybersecurity competitions for partners and enterprise customers, creating realistic attack-defense scenarios to promote proactive security practices.
• Built custom attack-and-defense scenarios simulating real-world cyber attack techniques.
• Developed CTF infrastructure and challenges to demonstrate vulnerabilities, exploitation techniques and defense mechanisms.
• Helped improve technical security capability and awareness of enterprise security teams through hands-on exercises.

Security Manager at Evolable (2017-01 – 2018-12)

• Developed and implemented security policies aligned with ISO 27001.
• Delivered enterprise security awareness training programs.
• Evaluated security posture and proposed improvement strategies.
• Developed automation tools using Python.

Security Specialist at Asia Commercial Bank (2015-01 – 2017-12)

Responsible for operating and maintaining enterprise security infrastructure within a large banking environment.

• Operated and monitored enterprise security systems including firewall, endpoint, web, mail protection and security monitoring platforms
• Supported incident investigation and security event analysis
• Implemented and optimized security policies for banking infrastructure
• Assisted in maintaining system stability and security compliance

Security Engineer at Mi2 (2014-01 – 2015-12)

Worked within a cybersecurity system integrator delivering security solutions for enterprise customers.

• Implemented and supported StoneSoft Firewall and McAfee SIEM solutions for enterprise customers.
• Deployed and configured enterprise security solutions
• Supported customers in integrating security technologies into existing infrastructures
• Assisted in troubleshooting and optimizing security systems

Security Engineer at Misoft (2011-01 – 2014-12)

• Implemented CheckPoint Firewall and ArcSight SIEM solutions and provided consulting and training.

Bachelor of Computer Science in Network & Security – Post and Telecommunications Institute of Technology