Senior Network & Security Engineer — RAN & Marine Systems

WORKLE PTE. LTD.

Singapore

On-site

SGD 70,000 - 110,000

Full time

2 days ago

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Job summary

WORKLE PTE. LTD. seeks an experienced network engineer to design, implement, and maintain complex LAN/WAN, data centre, and security architectures.

You will manage routers, switches, firewalls, VPNs, and monitoring systems, ensuring robust connectivity and incident response. You will configure OSPF/BGP, enforce security controls, support 4G/5G RAN deployments, and collaborate with vendors and project teams to deliver reliable telecom and marine-related networks.

Qualifications

Bachelor's degree in IT, CS, telecom, electronics, engineering, or related field.
4-7 years of experience in network engineering, cybersecurity, telecommunications, or infrastructure operations.
Strong knowledge of LAN/WAN, routing & switching (OSPF, BGP) and network security basics.
Hands-on experience with enterprise firewalls (Palo Alto, Fortinet, Cisco ASA/FTD, Juniper).
Experience with IDS/IPS, NAC, SIEM, and NMS platforms.
Familiarity with cybersecurity frameworks (ISO 27001, NIST) and vulnerability management.
Experience in 4G/5G RAN deployment, telecom site implementation, integration, and commissioning.
Familiarity with SIEM platforms (Splunk, QRadar, ArcSight, Elastic) and NMS like SolarWinds.
Experience with vulnerability tools (Nessus) and NAC solutions (Cisco ISE, FortiNAC).
Knowledge of marine comms tech (GMDSS, ECDIS, AIS, LRIT) is a plus.
Scripting/automation (Python, Bash, PowerShell, Ansible) is preferred.
Strong troubleshooting, analytical, documentation, and vendor coordination skills.

Responsibilities

Design, configure, implement, maintain, and troubleshoot LAN/WAN, data centre, DR, routers, switches, firewalls, VPNs, and NMS.
Configure routing protocols (OSPF/BGP) and access controls for secure connectivity.
Monitor performance, investigate incidents, perform root-cause analysis, and implement fixes.
Implement and maintain network security solutions (firewalls, NAC, SIEM, segmentation, Zero Trust).
Perform security monitoring, incident response, vulnerability assessments, patching, hardening, and remediation.
Support ISO 27001/NIST compliance and internal security policies.
Maintain security audit records and assist risk assessments and improvements.
Coordinate with vendors, subcontractors, customers, and project teams to resolve issues.
Prepare and maintain network diagrams, SOPs, incident/ commissioning docs.
Provide onsite and remote technical support to customers and project teams.