Senior Infrastructure Engineer – Linux, Cisco & Automation

Hamilton Barnes ?; Singapore; On-site; SGD 120,000 - 170,000; Full time

Job summary

Hamilton Barnes is seeking a hands-on Infrastructure Engineer to join our technology-driven team in Singapore. You will own server and network infrastructure across physical and virtual environments to boost performance, reliability and scalability.

The role covers Linux server administration, network troubleshooting, Cisco switching and data centre connectivity, plus automation using Python. You will collaborate with engineering teams on infrastructure improvements and support critical business

Qualifications

• 5+ years of infrastructure engineering, systems administration or network engineering.
• Hands-on Cisco networking experience with Catalyst or Nexus switches.
• Linux server and physical hardware troubleshooting experience.
• Proficient in TCP/IP, VLANs, subnetting and data centre connectivity.
• Automation experience using Python or scripting languages.
• Familiar with network troubleshooting tools like Wireshark, tcpdump or traceroute.
• Knowledge of infrastructure monitoring and performance troubleshooting.
• Willingness to support occasional out-of-hours maintenance and incidents.

Responsibilities

• Maintain, troubleshoot and optimise Linux servers, network infrastructure and physical hardware.
• Configure and support Cisco switches and data centre connectivity.
• Investigate network performance issues, including latency, packet loss and connectivity problems.
• Support infrastructure deployments, upgrades and hardware lifecycle management.
• Develop and improve automation processes using Python and scripting.
• Monitor infrastructure performance and resolve complex technical issues.
• Collaborate with engineering teams to deliver infrastructure improvements and maintain business-critical systems.
• Nice-to-have: Python scripting and infrastructure automation; knowledge of BGP/OSPF; firewalls/ACLs; monitoring tools like Prometheus/Grafana.

Skills

5+ years of experience

Cisco networking

Linux administration

Network troubleshooting

Python automation

Data centre connectivity

Education

N/A

Tools

Cisco Catalyst/Nexus

Wireshark

tcpdump

traceroute

Git

Prometheus/Grafana

Job description

Hamilton Barnes is seeking a hands-on Infrastructure Engineer to join our technology-driven team in Singapore. You will own server and network infrastructure across physical and virtual environments to boost performance, reliability and scalability.

The role covers Linux server administration, network troubleshooting, Cisco switching and data centre connectivity, plus automation using Python. You will collaborate with engineering teams on infrastructure improvements and support critical business