Senior IT Infra & Security Engineer (Hybrid)

Arbcentrix Corporation; Taguig; Hybrid; PHP 1,800,000 - 2,400,000; Full time

Job summary

Arbcentrix Corporation seeks a Senior IT Systems/Network Administrator with a cybersecurity focus to manage and secure IT infrastructure across systems, networks, cloud environments, cybersecurity, and ERP platforms. This hands-on role requires troubleshooting, supporting multiple client environments, and driving improvements through automation and modern technology.

You’ll administer Windows Server, Active Directory, and VMware; manage Azure environments; configure SonicWall firewalls; monitor

Qualifications

• 10+ years of IT experience in systems/network administration or cybersecurity.
• Hands-on experience with Windows Server and Active Directory.
• Strong VMware vSphere/ESXi experience.
• Experience managing Microsoft Azure environments.
• Experience configuring SonicWall or similar firewalls.
• Experience with SentinelOne or comparable EDR solutions.
• Experience with IT ticketing systems and SLAs.
• Experience configuring and troubleshooting ERP systems (NetSuite, SAP, Dynamics, Odoo, or similar).
• Scripting/automation using PowerShell, Python, Bash, or similar tools.
• Experience building AI-assisted automations or workflows.
• Familiarity with backup, disaster recovery, and business continuity.
• Knowledge of ISO 27001, NIST, SOC 2 or similar compliance frameworks.

Responsibilities

• Administer Windows Server, Active Directory, and VMware environments.
• Manage Microsoft Azure environments, including VMs, networking, and identity/M365 integration.
• Configure and maintain SonicWall firewalls, VPNs, site-to-site tunnels, and security rules.
• Monitor and respond to security incidents using SentinelOne or similar EDR tools.
• Manage patching and endpoint security.
• Resolve technical support requests while meeting SLA targets.
• Support vulnerability assessments and cybersecurity compliance initiatives.
• Configure and troubleshoot ERP systems, including integrations, workflows, and user access.
• Develop scripts and automation using PowerShell, Python, Bash, or similar tools.
• Build AI-assisted workflows to automate IT tasks such as ticket triage, alert analysis, reporting, and documentation.
• Use AI tools to support troubleshooting, scripting, documentation, and reporting while validating outputs.
• Support multiple client environments and prioritize competing technical requirements.
• Maintain technical documentation, system configurations, and incident records.
• Participate in an on-call rotation for critical issues.

Skills

Windows Server

Active Directory

VMware vSphere

Microsoft Azure

SonicWall Firewalls

EDR (SentinelOne)

Patching & Endpoint Security

Scripting (PowerShell)

Scripting (Python)

Scripting (Bash)

ERP Systems

Automation & AI Workflows

Backup & DR

ISO 27001/NIST/SOC 2

On-call Support

Tools

PowerShell

Python

Bash

Job description

Arbcentrix Corporation seeks a Senior IT Systems/Network Administrator with a cybersecurity focus to manage and secure IT infrastructure across systems, networks, cloud environments, cybersecurity, and ERP platforms. This hands-on role requires troubleshooting, supporting multiple client environments, and driving improvements through automation and modern technology.

You’ll administer Windows Server, Active Directory, and VMware; manage Azure environments; configure SonicWall firewalls; monitor