Network Engineer

Acclivis Technologies & Solutions Pte Ltd; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

Acclivis Technologies & Solutions Pte Ltd is seeking an experienced Network Engineer to oversee and operate customer network services, including Internet connectivity, private networks, and data centre infrastructure. You will monitor performance, provision infrastructure, and provide Tier 2/3 support with a strong focus on SLA compliance.

You should have 3–5 years of hands-on experience in enterprise/network environments, solid TCP/IP knowledge, and be prepared for after-hours standby and

Qualifications

• Bachelor's degree in CS/IT/Networking or related field.
• 3–5 years' hands-on enterprise/network experience.
• Active G50 security clearance is a strong advantage.
• Strong knowledge of TCP/IP networking, routing, switching, BGP, OSPF, VLANs, VPNs, NAT, DNS, DHCP, and network troubleshooting.
• Experience with routers, switches, firewalls, wireless networks, and load balancers.
• Familiarity with cloud networking and virtualization is a plus.
• Excellent troubleshooting, documentation, and cross-functional collaboration.

Responsibilities

• Oversee and maintain customer network services including Internet, private networks, managed network services, and data centre infrastructure.
• Monitor health, availability, capacity, and performance to meet SLA.
• Provision, configure, install, migrate, and decommission infrastructure and services.
• Maintain firmware upgrades, patches, backups, and lifecycle management of network equipment.
• Provide Tier 2/3 support for escalated incidents within SLA.
• Troubleshoot complex network issues with vendors and service partners.
• Participate in project implementations, provisioning, and onsite support as required.
• Create and maintain network diagrams, IP addressing plans, asset inventory, SOPs, and MOP documents.
• Support change management with implementation plans, risk assessments, rollback procedures, testing, and validation.
• Monitor security advisories, identify vulnerabilities, and implement remediation and hardening.
• Collaborate with Infra, Security, Systems, Service Delivery, and NOC teams.
• Support RCA, problem management, and continuous service improvement initiatives.
• Support Network Manager in standards, capacity planning, technology refresh, and service improvements.
• Participate in after-office-hours standby, maintenance windows, and emergency support when required.

Skills

TCP/IP networking

Network troubleshooting

Analytical thinking

Documentation

Vendor coordination

Communication

Education

Bachelor's Degree or equivalent in CS/IT/Networking

3–5 years hands-on enterprise networking

Active G50 security clearance a strong advantage

CCNP or higher (preferred)

Tools

Routers

Switches

Firewalls

Load balancers

VPN appliances

Job description

Main Duties and Responsibilities:

• 1. Oversee, operate, and maintain the customer network services, including Internet connectivity, private network, managed network services, and data centre infrastructure.
• 2. Monitor the health, availability, capacity, and performance of the network infrastructure to ensure service reliability and SLA compliance.
• 3. Perform network provisioning, configuration, installation, migration, and decommissioning activities for infrastructure and customer services.
• 4. Perform routine maintenance, firmware upgrades, patching, backup, and lifecycle management of network equipment.
• 5. Provide Tier 2 and Tier 3 technical support for escalated incidents, problems, and service requests, ensuring timely resolution within SLA.
• 6. Troubleshoot complex network, routing, switching, firewall, VPN, wireless, and connectivity issues by working with vendors, carriers, and service partners.
• 7. Participate in customer project implementation, service provisioning, and maintenance activities, including onsite support when required.
• 8. Create and maintain accurate technical documentation, including network diagrams, IP addressing plans, asset inventory, configuration records, SOPs, and Method of Procedure (MOP) documents.
• 9. Participate in change management by preparing implementation plans, risk assessments, rollback procedures, testing, and post-implementation validation.
• 10. Monitor security advisories, identify infrastructure vulnerabilities, and implement approved remediation, firmware updates, and configuration hardening.
• 11. Collaborate with Infrastructure, Security, Systems, Service Delivery, and NOC teams to support crossfunctional projects and operational requirements.
• 12. Support root cause analysis (RCA), problem management, and continuous service improvement initiatives following major incidents.
• 13. Support the Network Manager in implementing network standards, operational policies, capacity planning, technology refresh, and service improvements.
• 14. Participate in after-office-hours standby, maintenance windows, and emergency support when required.

Job Requirements: (e.g., educational/ professional qualifications)

Education and Professional Requirements

• 1. Bachelor's Degree or equivalent qualification in Computer Science, Information Technology, Computer Engineering, Network Engineering, or a related discipline.
• 2. Minimum 3–5 years of hands-on experience in enterprise, data centre, or managed network environments.
• 3. Possession of an active G50 security clearance is a strong advantage
• 4. Strong knowledge of TCP/IP networking, routing, switching, BGP, OSPF, VLANs, VPNs, NAT, DNS, DHCP, and network troubleshooting.
• 5. Hands-on experience with enterprise networking and security technologies, including routers, switches, firewalls, wireless networks, and load balancers.
• 6. Experience with network monitoring, logging, and management platforms.
• 7. Familiarity with cloud networking technologies and virtualized infrastructure is an advantage.
• 8. Experience with network implementation, migration, maintenance, and change management processes.
• 9. Good understanding of network security principles, cybersecurity best practices, and infrastructure hardening.
• 10. Strong analytical, troubleshooting, and problem-solving skills with the ability to manage multiple priorities.
• 11. Good communication and documentation skills, with the ability to work effectively with customers, vendors, and cross-functional teams.
• 12. Willing to perform after-office-hours support, standby duties, and onsite work when required.

Preferred Professional Certifications

• 1. Cisco Certified Network Professional (CCNP) and above
• 2. Fortinet Network Security Expert (NSE) 4 and above
• 3. HPE Aruba Networking Certified Professional – Switching
• 4. A10 Network Certified Professional
• 5. ITIL Foundation certification is an added advantage.