1. Security Operations & Administration
- Administer, configure, and operate firewalls, IDS/IPS, WAF, DLP, NAC, PAM, DBFW, SIEM, and other network security systems.
- Monitor and analyze security alerts and firewall logs; identify anomalies and respond to incidents.
- Maintain and optimize secure network segmentation, ACLs, NAT, and routing policies.
- Oversee patching, upgrades, and health monitoring for security devices and appliances.
- Manage system performance, availability, and scalability of security platforms.
2. Incident Response & Troubleshooting
- Lead or support incident handling: root cause analysis, containment, remediation, and recovery actions.
- Document incidents, impact assessments, and corrective measures.
- Provide 24/7 operational support (on-call rotation) for critical security infrastructure.
3. System Optimization & Improvement
- Perform capacity planning, performance tuning, and high availability configuration for security systems.
- Develop automation scripts (Python, PowerShell, Ansible, etc.) to improve monitoring, alerting, and operational efficiency.
- Collaborate with infrastructure teams (network, system, database) to troubleshoot cross-platform issues.
4. Collaboration
- Work closely with the Policy & Audit team to provide system data, reports, and evidence for compliance and audit checks.
- Coordinate with vendors for support, upgrades, and new feature adoption.
- Mentor junior engineers in system administration and incident handling..
5. Other tasks as assigned by the manager.
Senior IT Infrastructure (Disaster Recovery) Officer
LOTTE FINANCE VIETNAM
Tầng 12A, Tháp Tây, tòa nhà LOTTE Center Hà Nội, 54 Liễu Giai
Posted date:
Experience
3 - 0 Years
Job level
Team Leader / Supervisor
Salary
Job Descriptions
Job Requirement
1. Education: Bachelor’s degree or higher in Information Technology, Computer Science, Information Security, Network Engineering, or related fields.
2. Experience:
- 3+ years of hands-on experience in network or security administration.
- Hands-on experience with enterprise-class firewalls (Palo Alto, Check Point, Fortinet, Cisco ASA/Firepower), IDS/IPS, - DLP, SIEM (QRadar, Splunk, ELK), PAM (CyberArk), NAC (Cisco ISE/Forescout), DBFW.
- Strong troubleshooting and incident response experience in 24/7 environments
3. Skills and Competencies:
- Solid knowledge of networking protocols (TCP/IP, BGP, OSPF, VLAN, etc.).
- Proficiency in OS & security system administration (Linux/Unix/Windows).
- Good understanding of cyber threat landscapes and attack vectors.
- Scripting / automation skills (Python, PowerShell, Ansible) – strong plus.
- Familiarity with cloud security (AWS, Azure) is an advantage.
- Strong teamwork, analytical, and problem-solving skills.
More Information
- Degree: Bachelor
- Age: Unlimited
- Type of employment: Permanent
You should be skill
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