Security Monitoring & SIEM Engineer

LUMINA ADVISORY & GLOBAL SEARCH PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

LUMINA ADVISORY & GLOBAL SEARCH PTE. LTD. in Singapore is seeking a hands-on SIEM Engineer to help keep our monitoring environment reliable and ready for investigation. You will deploy agents across Linux and Windows, onboard logs, and ensure complete coverage and ingestion status.

The role requires 3+ years in SIEM or security engineering, experience with Wazuh and OpenSearch, strong troubleshooting skills, and fluency in English and Mandarin to collaborate with regional teams.

Qualifications

• Bachelor's degree or higher in Information Security, Cybersecurity, Computer Science or a related field.
• Minimum 3 years of SIEM, security monitoring, log management or related infra engineering experience.
• Hands-on experience with Wazuh, SIEM and security monitoring platforms.

Responsibilities

• Deploy and manage Wazuh Agents across Linux and Windows.
• Onboard security logs and verify ingestion coverage.
• Monitor SIEM platform health and service availability.
• Manage log retention and storage capacity.
• Troubleshoot log collection, agent and ingestion issues.
• Support integrations with monitoring and automation platforms.
• Continuously improve SIEM monitoring and log management capabilities.

Skills

Wazuh

OpenSearch

Linux administration

Windows administration

Log management

SIEM administration

English & Mandarin communication

Education

Bachelor's degree in Information Security, Cybersecurity, Computer Science or a related field

Tools

OpenSearch

Job description

About the Role

Join our security team and help keep our monitoring environment reliable, complete and ready for investigation. This isa hands-on engineering role for someone who enjoys solving log collection,Agent, platform and infrastructure problems across Linux and Windows environments.

What You'll Do

• Deploy and manage Wazuh Agents across Linux, Windows and relevant infrastructure systems.
• Onboard security logs and monitor log coverage, completeness and ingestion status.
• Monitor SIEM platform health, stability, operational status and service availability.
• Manage log retention, storage utilisation, capacity planning and log lifecycle requirements.
• Monitor system security status and relevant log activities across Linux and Windows environments.
• Troubleshoot log collection issues, Agent failures, ingestion problems and SIEM platform incidents.
• Support integrations with infrastructure monitoring and automation platforms.
• Maintain and continuously improve SIEM monitoring and log management capabilities.

What We're Looking For (Must Have)

• Bachelor's degree inInformation Security, Cybersecurity, Computer Science or a related field.
• At least 3 years of relevant experience in SIEM administration, security monitoring, log management or infrastructure/security engineering.
• Hands-on experience with Wazuh, SIEM, log management or security monitoring platforms.
• Strong Linux and Windows system administration knowledge, including system logs and security monitoring.
• Hands-on OpenSearch operations experience covering log queries, log analysis, index management and basic platform troubleshooting.
• Practical experience in log collection, Agent deployment, log onboarding and ingestion troubleshooting.
• Strong analytical and troubleshooting skills, with the ability to investigate unfamiliar system, Agent or platform behaviour independently.
• Effective communication in English and Mandarin, as the role works with regional stakeholders who primarily communicate in these languages.

Good to Have

• Experience managing storage utilisation, log retention and monitoring platform capacity.
• Shell scripting, Python, Ansible or other automation experience.
• Experience integrating security monitoring with infrastructure monitoring or automation platforms.
• Experience operating Wazuh or a similar monitoring platform at scale.