Senior Active Directory & Security Engineer

CL Technical Services Limited; Hong Kong; On-site; HKD 480,000 - 720,000; Full time

Job summary

CL Technical Services Limited is seeking an experienced IT security professional to administer AD DS, manage vulnerability assessments, and coordinate security initiatives across the organization.

The role emphasizes audit governance, remediation coordination, and cross-functional collaboration to strengthen cybersecurity posture while supporting Windows environments and migration projects.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Information Security, or a related discipline.

Responsibilities

• Administer, maintain, and support Active Directory Domain Services (AD DS), ensuring system reliability, availability, and security.
• Manage end-to-end vulnerability assessment activities, including scheduling scans, operating security scanning tools, reviewing findings, and coordinating remediation efforts.
• Analyze vulnerability scan reports and identify genuine security risks while filtering out false positives.
• Coordinate and lead infrastructure security initiatives involving system owners, support teams, and external vendors.
• Conduct regular system security assessments, compliance reviews, and audits in accordance with established security policies and standards.
• Plan and coordinate Windows platform migration projects, ensuring smooth implementation with minimal service disruption.
• Schedule and track security audits for servers, networks, and applications, ensuring timely completion by relevant stakeholders.
• Gather audit evidence and system information, and assist in preparing audit documentation and assignment briefs.
• Collaborate with cross-functional teams to drive continuous improvements in cybersecurity posture and operational efficiency.
• Prepare management reports, technical documentation, audit summaries, and project progress updates.

Skills

Active Directory Administration

Vulnerability Management

Security Audits & Compliance

Project Coordination

Communication Skills

Education

Bachelor's degree in Computer Science, Information Technology, Information Security, or a related discipline

Tools

SAST/DAST tools

Windows Server

Job description

CL Technical Services Limited is seeking an experienced IT security professional to administer AD DS, manage vulnerability assessments, and coordinate security initiatives across the organization.

The role emphasizes audit governance, remediation coordination, and cross-functional collaboration to strengthen cybersecurity posture while supporting Windows environments and migration projects.