Infrastructure Security Engineer

Top 3 Reasons To Join Us

Enterprise platforms for business operations

AI, cloud, cybersecurity, and digital services

Industry solutions for complex environments

The Job

Responsible for supporting the operation, maintenance, and security of enterprise IT infrastructure across Linux/Windows systems, network security, monitoring, and security compliance.

Apply automation and AI-assisted engineering tools to improve troubleshooting and operational efficiency.

Bachelor’s degree in IT, Computer Science, Network Security, Telecommunications, or related fields.

Deploy, operate, monitor, patch, and troubleshoot Linux and Windows servers and infrastructure services.

Configure and maintain firewalls, VPN, routing, NAT, network connectivity, and security policies.

Monitor infrastructure availability, performance, capacity, and security events.

Troubleshoot system and network incidents and support root cause analysis.

Support system hardening, vulnerability remediation, patching, and security improvements.

Support Active Directory, DNS, DHCP, Group Policy, and identity and access management.

Participate in security incident response, compliance reviews, and remediation activities.

Support automation of operational tasks using scripting and infrastructure tools.

Maintain technical documentation, system diagrams, SOPs, and implementation documents.

Collaborate with internal teams, vendors, auditors, and project stakeholders.

Your Skills and Experience

Infrastructure & Operating Systems

Hands-on experience with Linux administration such as Ubuntu, CentOS, RHEL, Rocky Linux, or equivalent.

Familiarity with Windows Server, Active Directory, DNS, DHCP, and Group Policy.

Network & Security

Hands-on experience with at least one firewall platform such as Sophos Firewall, FortiGate, pfSense, OPNsense, or equivalent.

Understanding of TCP/IP, VLAN, Routing, Switching, VPN, NAT, DNS, and network troubleshooting.

Familiarity with firewall policies, network segmentation, system hardening, and access control.

Basic understanding of security principles and least-privilege access.

Monitoring & Security Operations

Familiarity with monitoring tools such as PRTG, WhatsUp Gold, Zabbix, Grafana, or equivalent.

Basic understanding of security monitoring, log analysis, SIEM, or SOC operations is an advantage.

Preferred / Nice to Have

Experience in one or more of the following areas is an advantage:

Virtualization, storage, backup, DR, or HA.

Bash, PowerShell, Python, Ansible, or similar automation tools.

Oracle/MySQL administration.

IAM, MFA, SSO, RBAC, or Zero Trust.

Docker, Kubernetes, or container security.

ISO/IEC 27001, PCI-DSS, vulnerability management, or security auditing.

AI-assisted engineering tools such as ChatGPT, Claude, Cursor, Claude Code, Hermes, or similar platforms.

Relevant infrastructure, networking, Linux, Microsoft, or cybersecurity certifications.

Candidates do not need to meet every preferred requirement. We value strong fundamentals, hands-on experience, troubleshooting ability, and willingness to learn.

Language & Personal Skills

Able to read technical documentation and communicate in English.

Good troubleshooting and analytical skills.

Responsible, proactive, willing to learn, and able to work independently or in a team.

Why You'll Love Working Here

Competitive salary and benefits package, including a guaranteed 13th-month salary.

Company trip annually.

Dynamic and innovative working environment with professional colleagues.

Opportunities for professional growth and exposure to enterprise technology platforms and global business practices.

Comfortable workplace with free parking, coffee, snacks.

Company-sponsored training programs and professional certifications.

Onsite working environment at the company office in District 7, Ho Chi Minh City