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Location:
Cambodia
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Category:
Information Technology
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Job Type:
Full Time
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Salary:
Negotiable
Educational Requirements:
- Bachelor Degree
Experience:
- 3 Years
Extra Benefits:
- Sick Leave
- Annual Leave
- Special Leave
Job Description:
JOB SUMMARY
We are looking for Linux Security Operation Engineer who is experience with MLPS (China) or ISO27001 compliance projects
And large-scale clusters (100+ servers), DevSecOps experience with security in CI/CD pipelines.
KEY ACCOUNTABILITIES
ü System Operations & Management
- Responsible for daily operation, inspection, and optimization of large-scale Linux servers to ensure high availability; develop and implement updates, patches, and security baselines. Skilled in JMeter, LoadRunner, and other performance
ü Security Protection & Compliance
- Implement hardening, conduct vulnerability scans and risk assessments, manage firewalls, WAF, IDS/IPS; ensure compliance with security standards
ü Monitoring & Incident Response
- Build monitoring, logging, and alerting systems to detect threats; create and practice emergency plans, quickly handle incidents
ü Accounts & Permission Management
- Manage accounts and permissions, enforce least privilege, implement multi-level access and 2FA.
ü Automation & Tool Development
- Use Shell/Python to develop automation tools; promote tools such as Ansible and Salt Stack
ü Cross-department Collaboration
- Work with R&D; and business teams on deployments and security assessments
JOB REQUIREMENTS
(Education, Qualification/Skills/Behaviors, and Related Experiences.)
- Degree in Computer Science, Cybersecurity, or related fields; 3–5+ years of Linux operations experience.
- Proficient in installation, configuration, optimization, troubleshooting of CentOS, Ubuntu, RedHat.
- Strong knowledge of TCP/IP networking and security protocols (HTTP, DNS, SSH, SSL/TLS, VPN).
- Familiar with system hardening, proficient with SELinux, iptables/firewalld, Fail2ban.
- Familiar with attacks (SQL injection, XSS, DDoS, privilege escalation) and defenses.
- Skilled with security tools such as Nessus, OpenVAS, OSSEC, Wazuh, Splunk.
- Proficient in Shell, Python, Go for automation tools development.
- Familiar with monitoring tools (Zabbix, Prometheus, Grafana, ELK) with log analysis skills.
- Strong documentation skills to produce security standards, manuals, and emergency plans