ICT Security Operations Analyst - Mutiple Headcounts

Adecco; Singapore; On-site; SGD 70,000 - 120,000; Full time

Job summary

Adecco is recruiting an experienced ICT Security Operations Analyst / Network Security Engineer to provide Level 2/3 operational support across enterprise network and security infrastructure. The role focuses on incident management, firewall and VPN support, vulnerability remediation and production stability.

You will work in a large-scale, international enterprise with strong governance, risk and security controls, delivering timely responses to network-security incidents and production issues.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Computer Studies, Systems Analysis or a related discipline.
• Experience ideally 5+ years of hands-on Cybersecurity / Network Security support in production environments.
• Security operations experience in a financial-services or regulated environment is advantageous.

Responsibilities

• Provide L2 production support for network and security infrastructure.
• Manage security incidents, service requests and changes.
• Investigate and respond to security incidents including phishing, malware and other security events.
• Perform vulnerability remediation and infrastructure hardening.
• Manage and troubleshoot firewalls, IPS/IDS, proxies, VPNs and remote-access solutions.
• Support LAN/WAN/VPN environments.
• Maintain security SOPs, procedures, documentation and knowledge articles.
• Maintain network-security assets and CMDB records.
• Provide technical guidance and escalation support to L1 teams.

Skills

Network Security

Firewalls

Fortinet FortiGate

Check Point Firewall MDS

VPN Remote Access

IDS IPS

LAN WAN

DNS DHCP

Incident Change Management

Vulnerability Remediation

Network Security Hardening

L2 Production Support

Education

Bachelor's degree in Computer Science / IT / Computer Studies

Tools

Cisco

F5

Infoblox

Skyhigh

Ivanti

Trend Micro

Arista

Job description

Our client is a prominent global financial institution with a strong technology footprint in Singapore. The Singapore technology hub plays a strategic role in supporting international banking operations and provides a sophisticated, enterprise-scale environment across infrastructure, cybersecurity, applications and production services.

This opportunity provides exposure to complex and business-critical technology platforms, global stakeholders and a highly regulated financial-services environment, making it particularly suitable for professionals looking to deepen their expertise in network security and cybersecurity operations.

Key Responsibilities

• Provide L2 production support for network and security infrastructure.
• Manage security incidents, service requests and changes.
• Investigate and respond to security incidents including phishing, malware and other security events.
• Perform vulnerability remediation and infrastructure hardening.
• Manage and troubleshoot firewalls, IPS/IDS, proxies, VPNs and remote-access solutions.
• Manage and troubleshoot DNS and DHCP services.
• Support network‑security implementation and enhancement projects.
• Maintain security SOPs, procedures, documentation and knowledge articles.
• Maintain network‑security assets and CMDB records.
• Provide technical guidance and escalation support to L1 teams.
• Support security upgrades and continuous operational improvements.

Our client is a prominent global financial institution with a strong technology footprint in Singapore. The Singapore technology hub plays a strategic role in supporting international banking operations and provides a sophisticated, enterprise-scale environment across infrastructure, cybersecurity, applications and production services.

This opportunity provides exposure to complex and business-critical technology platforms, global stakeholders and a highly regulated financial-services environment, making it particularly suitable for professionals looking to deepen their expertise in network security and cybersecurity operations.

Key Responsibilities

• Provide L2 production support for network and security infrastructure.
• Manage security incidents, service requests and changes.
• Investigate and respond to security incidents including phishing, malware and other security events.
• Perform vulnerability remediation and infrastructure hardening.
• Manage and troubleshoot firewalls, IPS/IDS, proxies, VPNs and remote-access solutions.
• Support LAN/WAN/VPN environments.
• Manage and troubleshoot DNS and DHCP services.
• Support network‑security implementation and enhancement projects.
• Maintain security SOPs, procedures, documentation and knowledge articles.
• Maintain network‑security assets and CMDB records.
• Provide technical guidance and escalation support to L1 teams.
• Support security upgrades and continuous operational improvements.

Key Technical Skills

Must-have / high priority

• Network Security
• Firewalls
• Fortinet / FortiGate
• Check Point Firewall / MDS
• VPN / Remote Access
• IDS / IPS
• LAN / WAN
• DNS / DHCP
• Incident & Change Management
• Vulnerability Remediation
• Network Security Hardening
• L2 Production Support

Strongly preferred technologies

• Cisco: ACI, Nexus, Catalyst, DNAC, ISE, IOS, NX-OS
• F5: LTM, ASM, APM, TMOS
• Infoblox: DNS / DHCP
• Skyhigh: Proxy
• Ivanti: Remote Access
• Trend Micro: IPS / IDS
• Arista: Switches / EOS

Additional technical skills

• Python
• Bash
• Ansible
• Wireshark
• TShark
• NetFlow
• Encryption
• Certificates
• Kerberos

Experience

• Ideally 5+ years of hands‑on Cybersecurity / Network Security support experience.
• Experience supporting enterprise network‑security infrastructure in a production/RUN environment.
• Financial‑services experience would be advantageous based on the original requirement you provided.
• Strong troubleshooting, analytical and incident‑resolution capabilities.
• Comfortable providing support in a shift/on‑call environment.

Education

Bachelor's degree in Computer Science, Information Technology, Computer Studies, Systems Analysis or a related discipline.

Work Arrangement

This role supports global operations across Asia, Paris and New York time zones and therefore requires flexibility to work across the following Singapore‑time shifts:

• 2:00 PM - 11:00 PM
• 4:00 PM - 1:00 AM during summer season
• 3:00 PM - 12:00 AM
• 5:00 PM - 2:00 AM during winter season

There may also be a requirement for occasional extended hours, night shifts and on‑call support during non‑business hours or weekends, depending on operational requirements.

This schedule enables continuous coverage across international operations and timely response to network‑security incidents and production issues.

Desired Skills and Experience

We are looking for an experienced ICT Security Operations Analyst / Network Security Engineer to provide Level 2 / L3 operational support across enterprise network and security infrastructure.

The role is focused on network security operations, incident management, firewall and VPN support, vulnerability remediation, infrastructure hardening and production support within a large-scale enterprise environment.