Network Security Engineer

About the role

Network Security Engineer - Kyndryl, Singapore

As a Network Security Engineer, you will be responsible for the operational delivery and continuous improvement of enterprise network security services. You will manage firewalls, VPNs, IPS/IDS technologies, segmentation controls, cloud network security, vulnerability remediation, and security incident response activities across a complex managed services environment. You will collaborate closely with network, cloud, systems, and security teams to ensure secure, reliable, and compliant operations.

What you will do

• Operate, monitor, and maintain enterprise firewall, VPN, IPS/IDS, and network security technologies
• Implement approved security policy, firewall, segmentation, and VPN changes
• Support threat monitoring, incident triage, containment, and investigation activities
• Manage vulnerability remediation, compliance findings, and audit actions
• Support cloud network security services and landing zone controls
• Maintain system configurations, documentation, evidence, diagrams, and operational records
• Monitor performance, availability, capacity, and resilience of security platforms
• Develop automation, orchestration, and operational improvements that enhance service quality
• Collaborate with internal teams, vendors, carriers, and client stakeholders on service delivery activities

Required skills and experience:

• Hands-on experience administering enterprise firewall, VPN, IPS/IDS, NAT, and network security technologies
• Strong understanding of routing, segmentation, high availability, application flows, and network security principles
• Experience implementing controlled changes with governance, testing, rollback, and validation procedures
• Ability to analyze security events, investigate security incidents, and coordinate remediation activities
• Experience working with incident, change, problem, audit, and service reporting processes
• Ability to support planned after-hours activities, incidents, and resilience exercises

Preferred skills

• Experience across multiple firewall vendors such as Palo Alto, Fortinet, Cisco, or equivalent technologies
• Experience with cloud network security, remote access, anti-DDoS, and SIEM platforms
• Network security automation experience using scripting, APIs, or orchestration tools
• Relevant security, networking, or cloud certifications supported by practical experience
• Experience working in enterprise managed services or highly regulated environments