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Senior Security Infrastructure (Disaster Recovery) Officer

Work Location Ha Noi (Ba Dinh District)
Job Level Experienced (Non - Manager)
Job Type Permanent
Qualification Bachelor
Experiences 5 Years
Salary Negotiable
Industry IT - Hardware / Network, IT - Software
Deadline to Apply 30/11/2025
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Hướng dẫn ứng tuyển

Bước 1: Điền vào Mẫu thông tin ứng viên LOTTE Finance, tải mẫu tại đây,
Bước 2: Chọn nút "Nộp đơn" bên trên và làm theo hướng dẫn.
Bước 3: Sau khi hoàn tất bước ứng tuyển, nếu đã ứng tuyển thành công, Bạn sẽ nhận được Thư xác nhận ứng tuyển thành công từ LOTTE Finance. Vui lòng đọc email để nắm các thông tin hướng dẫn tuyển dụng tại LOTTE Finance.

Chúc Bạn Sức khỏe và Thành công.

Job Benefit

  • Insurance
  • Uniform
  • Incentive bonus
  • Health checkup
  • Salary review
  • Seniority Allowance
  • Annual Leave

Job Description

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.
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.
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.
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..

Job Requirement

1. Experience:
- 5+ 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
2. 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.
3. Language: Vietnamese, English

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