This position is responsible for deploying, operating, and securing enterprise IT infrastructure, including firewalls, Linux/Windows systems, monitoring platforms, and security compliance frameworks.
The ideal candidate has strong hands-on experience with firewall systems, Linux servers, identity services, monitoring tools, and basic database administration, with a solid understanding of IT security standards.
Yêu cầu
KEY RESPONSIBILITIES
Bachelor's degree in IT, Computer Science, Network Security, Telecommunications, or related fields.
Deploy, operate, and maintain enterprise IT infrastructure across Linux and Windows environments.
Install, configure, patch, upgrade, monitor, and troubleshoot production servers and infrastructure services.
Deploy, configure, and maintain enterprise firewall and network security solutions.
Manage network connectivity, routing, VPN (Site-to-Site & Remote Access), NAT, IPS/IDS, Web Filtering, and security policies.
Monitor infrastructure health, system availability, network performance, and capacity to ensure high service reliability.
Investigate system and network incidents, perform root cause analysis, and implement corrective and preventive actions.
Participate in infrastructure hardening, vulnerability remediation, and security improvement initiatives.
Participate in IT governance, security architecture review, and infrastructure security planning.
Support security risk assessments, compliance reviews, and remediation planning.
Participate in security incident response, investigation, containment, recovery, and post-incident analysis.
Collect and analyze system, firewall, and security logs to support incident investigation and root cause analysis.
Automate infrastructure operations using scripting and modern automation tools.
Leverage AI-assisted engineering tools and AI agent platforms to improve infrastructure operations, troubleshooting, documentation, and operational efficiency.
Support and maintain compliance with ISO 9001:2015, ISO/IEC 27001:2022, PCI-DSS, and other applicable security standards.
Perform routine operational tasks for enterprise databases, including backup support, monitoring, basic troubleshooting, and maintenance.
Create and maintain technical documentation, system architecture diagrams, operational procedures (SOPs), and implementation documents.
Collaborate with internal teams, vendors, auditors, and project stakeholders to deliver infrastructure and security projects.
Participate in change management, incident response, disaster recovery, and continuous service improvement activities.
REQUIREMENTS
Operating Systems
Strong knowledge of Linux system administration (Ubuntu, CentOS, RHEL, Rocky Linux...).
Experience administering Windows Server environments, including Active Directory, DNS, DHCP, Group Policy, and File Services.
Network & Security
Strong experience with at least one enterprise firewall platform:
Sophos Firewall XG
pfSense & OPNsense
FortiGate
Good understanding of TCP/IP, VLAN, Routing, Switching, VPN, NAT, IPS/IDS, Web Filtering, DNS, and network troubleshooting.
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