**I. Job Responsibilities**
- Support the design, implementation, and monitoring of cybersecurity solutions for industrial production networks (OT systems) at factories.
- Directly deploy, administer, and operate endpoint security solutions, especially Trellix Antivirus and equivalent tools in manufacturing environments.
- Perform System Hardening for servers, workstations, and network devices based on security standards (CIS Benchmarks...) in OT environments.
- Work directly with international vendors/partners to implement solutions, troubleshoot issues, and optimize systems.
- Conduct security configuration reviews for SCADA, DCS, PLC, HMI, and other control systems.
- Coordinate security assessments for OT environments.
- Support security reviews of OT systems including firewall, industrial IDS/IPS, NAC, proxy, and monitoring tools.
- Participate in OT incident response, collect logs, and analyze root causes.
- Develop technical procedures, implementation guides, and checklists for real deployment.
**II. Technical Background \& Certifications**
***1\. Required Technical Background (Minimum 3 years of experience)***
- Hands\-on experience in at least one of the following areas:
- Deployment of endpoint security solutions (highly preferred: Trellix, CrowdStrike, SentinelOne, etc.)
- OS Hardening for Windows/Linux and network devices
- Network security infrastructure: firewall, routing, switching, VLAN, Domain Controller, AD security
- Strong advantage: Experience deploying/operating SIEM systems (Splunk, QRadar, ELK, FortiSIEM, etc.) or working as a SOC Analyst
***2\. Preferred Certifications***
- CCNA / Security\+
- CompTIA Security\+
- ISA / IEC 62443
- NIST SP 800\-82
- MITRE ATT\&CK for ICS
***3\. Experience \& Skills Requirements***
*Language*
- Good English communication skills (Listening, Speaking, Reading, Writing)
- Must be able to read technical documents, join meetings, and communicate independently with international vendors
*Personal Qualities*
- Detail\-oriented and persistent
- Strong self\-learning ability and proactive mindset
- Passion for research and proposing optimized solutions
*Service Mindset*
- Strong ownership in solving technical issues thoroughly
- Able to work under pressure in factory/manufacturing environments
- Customer\-support mindset with flexibility while maintaining security compliance
*Other Requirements*
Willing to travel and work away from home when required.
