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Senior Network Engineer

8-10 Years
SGD 0.72 - 1.44 LPA
Early Applicant
  • Posted 2 days ago
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Job Description

We are seeking an experienced and proactive Network Engineer to design, deploy, secure, and maintain complex enterprise network and security infrastructures. In this role, you will lead end-to-end network operations-from LAN/WLAN architecture and firewall management to advanced routing, security hardening, and 24x7 incident support. You will serve as a technical escalation point, ensuring high availability, compliance, and seamless operational performance across multi-vendor customer environments.

Key Responsibilities:

1. Network Design & Architecture

  • LAN/WLAN Solutions: Plan, design, and implement enterprise LAN and wireless networks (802.11 standards), including conducting RF site surveys, coverage analysis, and optimizing Access Point (AP) placement.

  • Documentation & Topology: Develop and maintain network topologies, high-level/low-level designs (HLDs/LLDs), capacity plans, and migration strategies for technology refresh cycles.

2. Core Infrastructure & Device Management

  • Routing & Switching: Configure, deploy, and manage multi-vendor switches (Cisco Catalyst/Nexus, Alcatel, Juniper) and routers. Formulate tech-refresh configurations and resolve critical WAN/LAN connectivity issues.

  • Firewall & Security Management: Deploy and manage Palo Alto, Check Point, and Fortigate firewalls. Onboard devices to central management consoles, enforce security policies, configure IPSEC (IKE/Crypto maps), and maintain configuration baselines.

  • Wireless & Access Control: Manage Wireless LAN Controllers (WLC) with SSO, FlexConnect, and IAP/EWC concepts. Administer Aruba ClearPass Policy Manager (CPPM) for RADIUS authentication, certificates, and access control.

  • Load Balancers: Deploy and configure F5 Local Traffic Managers (LTM), setting up SSL proxies, Virtual IPs (VIPs), and iRules.

3. Lifecycle & Asset Management

  • Software & Firmware Upgrades: Plan, coordinate, and execute scheduled upgrades for routers, switches, firewalls, and security appliances, minimizing downtime through managed maintenance windows.

  • Asset Tracking & Inventory: Maintain an accurate inventory of all network assets (including UPS systems) across customer sites, ensuring complete lifecycle documentation (installation, warranties, and maintenance logs).

  • IPAM & Resources: Oversee enterprise-level IP Address Management (IPAM), subnet inventories, and reservation policies to prevent conflicts.

4. Security, Compliance & Incident Response

  • Incident Support (L2/L3): Provide technical leadership for complex network incidents, driving root cause analysis (RCA) and ensuring strict SLA compliance.

  • Vulnerability Mitigation & Hardening: Oversee the implementation of security patches, hotfixes, and CIS-aligned hardening baselines. Conduct periodic configuration and firewall rule reviews.

  • Access Governance & SIEM: Perform periodic network account reviews, monitor privileged access, ensure SIEM log integration, and oversee automated configuration backups and disaster recovery (DR) exercises.

5. Operations & Facility Support

  • Monitoring & Health Checks: Oversee daily operational health checks, traffic trends, and proactive monitoring to detect anomalies early.

  • Facility Power Operations: Coordinate data center power shutdown and recovery activities, maintaining robust power recovery runbooks for business continuity.

Requirements:

  • Bachelor's degree in information technology, Computer Science, or a related field.
  • Minimum 8 years of experience in handling Network and Security Domain
  • Minimum Cisco Certified Network Professional CCNP is required.
  • PCNSE or CCSE equivalent certification is value added.
  • Proven experience in managing Palo Alto, Check Point and Fortigate firewalls.
  • Proficiency in configuring and troubleshooting Cisco or equivalent switches and Routers.
  • Hands-on experience with Aruba Clear Pass Policy Manager (CPPM) or similar access control systems.
  • Proficient in OSPF and BGP configuration.
  • Strong knowledge of network protocols, routing, and switching, and Wi-Fi standards (802.11 a/b/g/n/ac/ax)
  • Excellent problem-solving and analytical skills.
  • Excellent skillset on Network Analysis and Migration planning to handle Network projects
  • Effective communication and teamwork abilities.

Preferred Skills:

  • Familiarity with network monitoring and management tools.
  • ITIL Foundation certification or higher is preferred.
  • Experience in Advanced Network on Network Automation and ACI Infrastructure deployment.
  • Experience in Hybrid Network transition from on-premises networks to cloud.

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Job ID: 152214979

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