Network Infra Engineer

ITQ Requirements –

Network Infrastructure Engineer

1.Objective

The objective of this ITQ is to source a qualified vendor to provide Network Infrastructure Engineering

services, covering implementation, operations, optimization, and support across enterprise, datacentre,

cloud, and site environments.

2.Scope of Services

2.1Network Implementation & Operations

-Implement, configure, and maintain network infrastructure (LAN, WAN, WiFi, cloud, cabling).

-Support design validation and ensure solutions are implementable and operationally sustainable.

-Configure and support switches, routers, firewalls, and wireless access points.

-Conduct technical and WiFi site surveys.

-Monitor network performance and ensure availability.

-Support maintenance activities (including after-hours when required).

-Support remote-site troubleshooting, fault isolation, service provisioning

-Coordinate network cabling works with vendors and internal stakeholders

2.2Network Monitoring, Optimization & Resilience

-Operate monitoring tools such as PRTG and SolarWinds.

-Analyse performance metrics and utilization trends.

-Provide continuous improvement recommendations.

-Implement backup and disaster recovery capabilities.

-Maintain network diagrams and cabling documentation.

2.3Cloud Networking & Connectivity

-Implement and support cloud networking (AWS or equivalent).

-Ensure secure connectivity between on-prem, cloud, and external services.

-Provide optimization recommendations for performance, scalability, and costefficiency.

2.4Security, Risk & Compliance

-Implement network security controls such as firewalls, VPNs, NAC, and WiFisecurity.

-Ensure compliance with internal standards and best practices.

-Support audit activities and remediation.

-Conduct vulnerability assessments, remediation, and security hardening toenhance security

ofenterprise network and infrastructure environments.

2.5Documentation & Change Management

-Maintain as-built diagrams, configuration guides, and runbooks.

-Ensure all changes follow approved change management processes.

-Maintain network documentation and IT asset inventory.

2.6Project & Stakeholder Collaboration

-Collaborate with project teams and stakeholders.

-Participate in design discussions and implementation planning.

-Provide technical guidance and issue resolution.

-Support network infrastructure deployment across sites in Singapore.

2.7Vendor Management

-Coordinate with vendors during implementation and troubleshooting.

-Support vendor performance monitoring and evaluation.

2.8Datacenter Management

-Manage Data Centre operations.

-Physical security and access control.

-Cabling infrastructure, and first-level troubleshooting.

-Providing 24x7 standby support for maintenance and project activities.

3.Technical Requirements

-Routing and switching (BGP, OSPF).

-Firewall and VPN technologies (Cisco, Fortinet, Palo Alto).

-QoS, IP networking, Ethernet.

-WiFi and NAC solutions.

-AWS networking and hybrid connectivity.

-Monitoring tools such as PRTG and SolarWinds.

4.Resource Requirements

-Minimum 4–5 years of relevant experience.

-Experience in enterprise and hybrid network environments.

-Certifications (preferred): CCNA/CCNP, NSE4, AWS Solutions Architect Associate.

5.Service Continuity & Backfill Requirement

-Vendor shall always ensure service continuity.

-Vendor must provide qualified backfill when the designated engineer isunavailable (including medical

leave,annual leave, urgent leave, or any other absence).

-Vendor is responsible for ensuring the backfill resource is adequately trainedand capable of performing

thefull scope of duties without degradation in service quality.

-Vendor should implement internal knowledge transfer and cross-training betweenthe primary engineer

andbackfill resource(s) to ensure seamless coverage.

-Failure to provide adequate backfill support resulting in service disruptionmay be subject to service

creditsor penalties, as defined in the contract.

-No additional cost shall be incurred for such backfill arrangements unlessotherwise explicitly agreed.

6.Service Level Expectations

-Incident response SLAs (P1/P2/P3).

-Network availability targets (e.g., ≥99.9%).

-MTTR and change success rate targets.

7.Deliverables

-Implementation outputs.

-As-built documentation.

-Monitoring reports.

-Disaster recovery setup.

-Incident reports and improvement recommendations.

8.Compliance & Governance

-Compliance with internal Certis standards

-Full audit traceability.

-Proper access control and segregation of duties.