Network Engineer

6 days ago

Singapore Tek Systems Full time
  • Design, implement, and maintain secure, high-availability network infrastructure across global data centers
  • Take full ownership of firewall platforms
  • Lead and contribute to data center buildouts and migrations

Job Summary

We are seeking an experienced Network Engineer with a strong background in firewalls, Cisco routing and switching, and data center build and migration projects. The ideal candidate will demonstrate deep technical expertise, a proactive approach to problem-solving, and a collaborative mindset for working across technology and business teams.

Key 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 to complex 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, including complex 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.

· Strong communication and documentation abilities, capable of translating complex 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 , R

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

#J-18808-Ljbffr

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