IT Infrastructure Cybersecurity Engineer
Salary: ₱40,000 – ₱45,000 per month
About the role
We are looking for a IT Infrastructure Engineer to deploy, troubleshoot, and maintain mission-critical network infrastructure. The ideal candidate will have hands-on experience with network monitoring and fault detection, Layer 2/Layer 3 diagnostics, and security tools, along with working knowledge of Linux system administration and application-level support to help maintain the servers and applications that support our network operations.
Key responsibilities
Monitor mission-critical network infrastructure across multiple service regions through proactive alarm monitoring and fault detection.
Investigate customer-impacting connectivity incidents and network alarms, performing fault isolation, root cause analysis, and service impact assessment.
Coordinate field dispatch with technicians and support the resolution of network outages within defined operational SLAs.
Perform Layer 2 and Layer 3 CLI diagnostics to validate network/optical signal integrity and confirm service restoration.
Administer and troubleshoot Linux-based servers supporting network and monitoring infrastructure.
Provide application-level support and troubleshooting for internal monitoring tools, dashboards, and NOC automation scripts.
Validate production network migrations, maintenance windows, and infrastructure upgrades to minimize operational risk.
Build and maintain automation scripts (e.g., Python, Ansible, Bash) to streamline routine diagnostics and reduce incident response time.
Author and maintain operational documentation, troubleshooting procedures, and incident response guides.
Escalate and coordinate with cross-functional teams to resolve complex network and application issues.
About you
Solid understanding of routing and switching protocols (RIP, OSPF, BGP), VLANs, NAT, and Layer 3 routing.
Experience with IPsec/SSL VPNs and firewall/security tools (e.g., OPNsense, FortiGate, Sangfor NGAF).
Familiarity with SIEM and IDS tools (e.g., Wazuh, Suricata) and security monitoring practices.
Working knowledge of alarm and performance monitoring platforms and SLA-based incident escalation.
Hands-on experience with Linux server administration (e.g., Ubuntu Server) — installation, configuration, and maintenance.
Comfortable working with the Linux CLI for diagnostics, log review, and troubleshooting.
Ability to troubleshoot and support internal applications, dashboards, and automation tools.
Experience identifying and resolving application-level issues affecting monitoring or reporting systems.
Comfortable working with scripting/automation tools (Python, Bash, Ansible, Google Apps Script) to build or maintain internal tools.
Strong analytical and troubleshooting mindset under time-sensitive conditions.