L2 Support Engineer

SILVERLINK TECHNOLOGIES PTE. LTD.Singaporemycareersfuturepublished 09/15/2026
Must-have:PythonAWSAzureCloudSecurityLeadHybrid

Job Summary

Provide L2 support and manage enterprise network infrastructure across multiple sites. Configure, maintain, and troubleshoot LAN/WAN environments, firewalls, and wireless networks. Lead network performance monitoring, upgrades, and project participation to ensure optimal network operations.

Responsibilities

  • Provide L2 support for enterprise network incidents, requests, and changes to ensure timely resolution and minimal downtime
  • Configure, maintain, and troubleshoot LAN/WAN environments to optimize network reliability and performance
  • Manage routing and switching infrastructure across multiple sites to maintain seamless connectivity
  • Support and administer firewall platforms such as Palo Alto, Fortinet, or Cisco Firepower to secure network perimeter
  • Manage wireless networks using Cisco, Aruba, or Meraki solutions to ensure stable and secure wireless access
  • Monitor network performance proactively and address issues to prevent service disruptions
  • Perform firmware upgrades, patching, and configuration backups to maintain network security and stability
  • Participate in network implementation, migration, and optimization projects to enhance infrastructure capabilities
  • Create and maintain detailed network documentation and operational procedures for consistent network management
  • Collaborate with vendors and internal teams to resolve complex network issues efficiently

Required competencies and certifications

  • Strong hands-on experience configuring and troubleshooting routing protocols including BGP, OSPF, and EIGRP
  • Proficient in managing switching technologies such as VLANs, STP, EtherChannel, with VxLAN preferred for advanced network segmentation
  • Skilled in administering firewall platforms including Palo Alto, Fortinet, and Cisco Firepower to enforce security policies
  • Experienced in managing wireless network solutions from Cisco, Aruba, and Meraki to ensure reliable connectivity
  • Solid understanding of TCP/IP, DNS, DHCP, NAT, VPN, and QoS protocols for effective network design and troubleshooting
  • Proficient in using network monitoring and troubleshooting tools to detect and resolve network issues
  • Knowledgeable in network security best practices to protect enterprise assets
  • Excellent communication and customer-facing skills to liaise with stakeholders and end-users

Preferred competencies and qualifications

  • Certifications such as CCNA or CCNP demonstrating networking expertise
  • Security certifications including PCNSA or PCNSE for Palo Alto firewall proficiency
  • Aruba Certified Mobility Professional (ACMP) certification for wireless network expertise
  • Fortinet Network Security Expert (NSE) certification for advanced firewall management
  • Exposure to SD-WAN technologies to support modern WAN architectures
  • Experience with network automation tools such as Python and Ansible to improve operational efficiency
  • Familiarity with cloud networking platforms like AWS and Azure for hybrid network environments
  • Knowledge of Network Access Control (NAC) solutions such as Cisco ISE and ClearPass to enhance network security