Network Engineer (Aruba,Checkpoint,ToR switches)

Exasoft; Singapore; On-site; SGD 70,000 - 100,000; Full time

Job summary

Exasoft in Singapore is seeking a Network Engineer to administer and support enterprise network and security infrastructure, focused on high availability, security posture, operational stability, and timely incident resolution across the environment.

You will administer HPE Aruba and HPE ToR switch ecosystems, manage VLANs and firewall policies with Check Point, apply CIS hardening, perform vulnerability remediation, and contribute to automation (Ansible) to drive standardization and efficiency.

Qualifications

• Degree or Diploma in IT/CS/Engineering or related discipline.
• 4–6 years of relevant network infrastructure experience.
• Hands-on experience with enterprise network and firewall environments.
• Experience with Aruba networking and Check Point technologies.
• Strong troubleshooting and analytical skills.
• Ability to independently manage operational activities.

Responsibilities

• Administer and maintain HPE Aruba and HPE ToR switch environments.
• Configure VLANs, trunking, switching, and connectivity services.
• Perform proactive monitoring, maintenance, and network health checks.
• Support network upgrades and lifecycle activities.
• Administer and monitor Check Point firewall environments.
• Manage firewall policies, ACLs, NAT configurations, and security rules.
• Troubleshoot network and firewall-related incidents.

Skills

Network troubleshooting

VLANs & Switching

Analytical skills

Independent work

Education

Degree or Diploma in IT/CS/Engineering

Tools

HPE Aruba

Check Point

Ansible

Job description

The Network Engineer is responsible for the administration, maintenance, and support of enterprise network and security infrastructure. The role focuses on ensuring network availability, security, operational stability, and timely resolution of incidents and infrastructure-related issues.

Key Responsibilities

Network Administration

• Administer and maintain HPE Aruba and HPE ToR switch environments.
• Configure and manage VLANs, trunking, switching, and connectivity services.
• Perform proactive monitoring, maintenance, and network health checks.
• Support network upgrades and lifecycle activities.

Security Administration

• Administer and monitor Check Point firewall environments.
• Manage firewall policies, ACLs, NAT configurations, and security rules.
• Troubleshoot network and firewall-related incidents.

Infrastructure Operations

• Configure and maintain HPE ToR switches supporting rack connectivity.
• Troubleshoot network and storage-layer connectivity issues.
• Manage platform incidents, changes, service requests, and root cause analyses.

Security & Compliance

• Conduct vulnerability assessments and remediation activities.
• Implement CIS hardening standards and security best practices.
• Support audit and compliance requirements.
• Utilize Ansible automation to improve operational efficiency.
• Drive standardization and process improvements.

Preferred Qualifications & Experience

• Degree or Diploma in Information Technology, Computer Science, Engineering, or related discipline.
• 4-6 years of relevant network infrastructure experience.
• Hands‑on experience supporting enterprise network and firewall environments.
• Experience with Aruba networking and Check Point technologies.
• Strong troubleshooting and analytical skills.
• Ability to independently manage operational activities.