Tanawat Rattanarach

Summary of Responsibilities and Experience:

• Managed overall security operations for KBank and Thanachart Bank, ensuring robust protection across systems and networks.
• Implemented system hardening and compliance measures based on CIS benchmarks and technical security specifications.
• Monitored and addressed vulnerabilities by assessing CVE notifications, applying appropriate patches, and ensuring timely fixes.
• Conducted traffic log analysis to identify and mitigate potential threats.
• Administered FortiGate Firewall, including managing policies and responding to security incidents.
• Performed vulnerability assessments and remediation on Windows and Linux operating systems to maintain system integrity.

Experienced IT professional with a strong background in system administration, network management, and cybersecurity within the Ministry of Public Health. Specialized in managing and securing IT infrastructure for the Department of Disease Control, including NOC/SOC networks, virtual machines (VMs), hardware (HW), software (SW), firewalls, and all systems in the data center.

Key Responsibilities and Expertise:

• Network and Systems Management:Oversaw IT systems across 11 network-connected buildings, including configuring and maintaining network equipment (Cisco, HP, Brocade). Managed data center systems, ensuring seamless operation and connectivity.
• Firewall Administration: Extensive experience with Fortigate firewalls (1500D), including:Configuring policies, static routes, and bandwidth usage limits. Setting up interfaces, IP address groups, and rules for CVE mitigation. Implementing and managing block-allow policies for enhanced network security.
• Cybersecurity and Threat Management:Monitored and mitigated attack threats, including viruses and unauthorized access attempts targeting critical systems and sensitive data. Proficient in analyzing logs and identifying critical events to ensure proactive incident response.
• SIEM and Monitoring Tools:Skilled in using SIEM LogRhythm (90–99% proficiency in front-end operations; 60% in creating rules and generating reports). Expert in tools such as SolarWinds and FortiAnalyzer for system monitoring and analysis.

IT Support and Networking Professional

• IT Operations: Managed and maintained company and affiliate IT systems, including networks, servers, CCTV, computer support, and software.
• IT Service Desk: Provided remote support for users at major organizations like Thanachart Bank, Boots, ICBC, and TCRB nationwide. Responsibilities included resolving user issues, logging cases, and monitoring network systems for Boots stores before daily operations.
• Web and Software Support: Modified, developed, and maintained websites and support programs for clients such as PTT, I-NOR, Groove, and Hemaraj.
• Industrial IT: Installed and maintained fire alarm systems for industrial plants, managed CEMS and OPMS systems, and ensured server room operations.
• Programming Skills: Experienced in JavaScript, PHP, HTML, React, Polymer, and Python for minor coding tasks and development projects.