Network Security Engineer

HENDERSON SECURITY SERVICES PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

Henderson Security Services Pte. Ltd. is seeking an experienced Network Security Engineer to design, deploy, and maintain enterprise security networks across customer environments.

You will manage firewalls, VPNs, and monitoring tools while supporting CCTV and Access Control integrations. Ideal candidates have 5+ years in network engineering or security systems, strong knowledge of TCP/IP and VPNs, and hands-on device experience with Fortinet, Palo Alto, and Cisco.

Qualifications

• Bachelor's degree or diploma in IT or a related field.
• Minimum 5 years in network engineering, IT infrastructure, or electronic security environments.
• Strong knowledge of TCP/IP, VLANs, routing, switching, and wireless networks.
• Hands-on experience with Fortinet, Palo Alto, Cisco or equivalent devices.
• Experience with CCTV, Access Control, IDS, and integrated security solutions.

Responsibilities

• Design, implement, operate, and maintain enterprise security network infrastructure.
• Manage and administer network and security devices, including firewalls and VPNs.
• Support deployment and maintenance of CCTV, Access Control, and IDS systems.
• Monitor security events and respond to incidents with appropriate actions.
• Troubleshoot, perform root cause analysis, and resolve issues promptly.
• Ensure secure configurations and hardening across customer installations.
• Coordinate with vendors and subcontractors for support and deployment.
• Maintain network diagrams, configurations, SOPs, and incident records.
• Provide technical guidance to customers and internal teams as required.

Skills

IP networking concepts

Firewall & network security

VPN technologies

CCTV/Access Control security systems

Network monitoring & log analysis

System installation & commissioning

Troubleshooting & incident response

Documentation & SOPs

Education

Bachelor's Degree or Diploma in Information Technology or related field

Tools

Fortinet

Palo Alto

Cisco

VPN gateways

Job description

Responsibilities

• Design, implement, operate,andmaintain enterpriseandsecurity network infrastructure supporting electronic security systemsandcustomer environments.
• Manageandadminister networkandsecurity infrastructure, including firewalls, VPNs, intrusion detection systems, access control networks,andmonitoring platforms.
• Support deploymentandmaintenance of electronic security systems such as CCTV, Access Control, Intrusion Detection,andIntegrated Security Management Systems.
• Monitor security events, system logs,andalerts using monitoring tools to detect, analyze,andrespond to incidents.
• Perform troubleshooting, root cause analysis,andincident resolution for networkandsecurity system issues.
• Ensure secure network configurations, system hardening,andcompliance with cybersecurity best practices across customer installations.
• Conduct vulnerability assessments, coordinate remediation activities,andsupport system security improvements.
• Manage firewall policies, rule reviews, network segmentation,andsecure remote access configurations.
• Support system integration, installation, testing, commissioning,andhandover of securityandnetwork solutions.
• Collaborate with project, engineering,andtechnical teams to ensure secureandreliable solution deployment.
• Maintain documentation including network diagrams, system configurations, SOPs, maintenance reports,andincident records.
• Support preventive maintenance, firmware upgrades, system updates,andservice improvement activities.
• Coordinate with vendorsandsubcontractors for technical support, equipment replacement,andsolution deployment.
• Ensure compliance with internal security policies, customer requirements,andindustry standards.
• Provide technical supportandguidance to customersandinternal teams when required.

Requirements

• Bachelor's Degree or Diploma in Information Technology, Computer Science, Electronics, Electrical Engineering, Telecommunications, or related field.
• Minimum 5 years of experience in network engineering, IT infrastructure, or electronic security systems environment.
• Strong knowledge of IP networking concepts including TCP/IP, VLANs, routing, switching,andwireless networks.
• Hands-on experience with firewallandnetwork security devices such as Fortinet, Palo Alto, Cisco, or equivalent platforms.
• Experience supporting CCTV systems, Access Control Systems, Intrusion Detection Systems,andintegrated security solutions.
• Good understanding of VPN technologies such as IPsecandSSL VPN.
• Experience in system installation, configuration, troubleshooting,andcommissioning activities.
• Familiarity with network monitoring, log analysis,andincident troubleshooting.
• Knowledge of cybersecurity principlesandsecure network design practices.
• Ability to perform preventive maintenanceandhandle multiple site support activities.
• Strong problem-solving skillsandability to work in fast-paced operational environments.
• Good communicationandcoordination skills for working with customers, vendors,andproject teams.
• Willingness to work on-siteandsupport after-office hours or emergency maintenance when required.
• Fortinet NSE, PCNSE, or equivalent certifications will be an added advantage.
• Security certifications such as Security+, CISSP, or CISM will be an added advantage.