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Network Engineer

Network Engineer

TEKsystems (Allegis Group Singapore Pte Ltd)Singapore
21 days ago
Job description

Responsibilities

  • Design, implement, and maintain secure, high-availability network infrastructure across global data centers.
  • Take full ownership of firewall platforms, including configuration of security policies, NAT rules, high availability (HA) clustering, and advanced troubleshooting.
  • Lead and contribute to data center buildouts and migrations
  • Manage and optimize Cisco routing and switching environments, including Catalyst, Nexus, and ASR platforms.
  • Configure and troubleshoot core network protocols at Layer 2 and Layer 3 (VLAN, STP, OSPF, BGP, EIGRP).
  • Work closely with cross-functional teams to ensure seamless project delivery.
  • Ensure network reliability through proactive incident management and thorough root cause analysis.
  • Oversee and deliver multiple projects concurrently, ranging from hardware upgrades toplex migration initiatives.
  • Collaborate with external vendors and service providers for implementation support, issue resolution, and performance tuning.
  • Maintain up-to-date documentation, including detailed network diagrams, configurations, and operational runbooks.

Key Qualifications

  • Strong expertise with Juniper SRX firewalls, includingplex security policy development, chassis clustering (HA), and deep packet inspection.
  • Extensive hands-on experience with Cisco network infrastructure, particularly Nexus 5k / 7k / 9k switches, Catalyst series, and ASR routers.
  • Strong grasp of data center networking principles, including Layer 2 / Layer 3 segmentation, redundancy, and scalable architecture.
  • Proven track record in delivering data center migration and build projects, with experience in change control processes, rollback strategies, and cross-functional coordination.
  • Advanced knowledge of routing protocols (OSPF, BGP, EIGRP) and Layer 2 technologies (VLANs, STP, VTP).
  • Skilled in troubleshooting and diagnostics, utilizing CLI tools, system logs, and packet analysis tools (Wireshark, flow capture)
  • Experience with network management platforms, including Cisco Prime, SolarWinds, and Junos Space.
  • Strongmunication and documentation abilities, capable of translatingplex technical issues into clear, actionable insights.
  • Self-motivated and reliable, with the ability to manage priorities independently and thrive in a globally distributed team under time-sensitive conditions.

    • Good to Have

  • Exposure to network automation using Python, Ansible, or REST APIs.
  • Experience with virtualization technologies and fabric networks (vPC, VXLAN, VMware NSX).

    • We regret to inform that only shortlisted candidates will be notified / contacted.

    EA Registration No. : CHOI RACHAEL , R25129167

    Allegis Group Singapore Pte Ltd,pany Reg No. 200909448N, EA License No. 10C4544

    Job ID a4VOd000000WP9lMAG

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    Network Engineer • Singapore