E
Ensign InfoSecurity
System Administrator
Skills
CybersecurityData AnalysisSystem & Network AdministrationITILChange Management
2 months ago
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Important information
Contract type:
Freelance / Contract
Location:
Singapore
Work mode:
Onsite
Published on:
21 August 2026
What they need
Key Responsibilities
- Provide onsite preventive maintenance support
- Support and manage various cybersecurity platforms, support infrastructure and systems
- Drive system improvements and enhancements that will improve system performance, effectiveness and security
- Address and remediation system vulnerabilities detected
- Develop and maintain operational documentation, including SOPs for patching, upgrades, onboarding of assets and routine maintenance.
- Log and manage support cases with vendors and maintenance contractors, including coordinating troubleshooting sessions and driving resolution.
- Take full ownership of assigned incidents and tasks, ensuring timely resolution and closure.
- Perform periodic system health checks, and work with 3rd party contractors responsible for comprehensive maintenance to review, address and resolve system alerts, error and issues detected
- Perform system activities when required, including patching, plug-in updates and other system maintenance.
- Perform Capacity Management, Asset and Configuration Management, Account and Access Management, Change Management, Backup Management and Security Management of the assigned systems
- Ensure all activities comply with internal policies, client requirements, and documentation standards.
- Perform stand-by after office hours
- Support Major Operational Events such as power maintenance, DR exercises
Requirements
- Experience: At least 2 years of relevant experience in IT/cybersecurity operations, managed services, and/or system management. Exposure to public sector, large local enterprises, local CII and/or global enterprises is an advantage.
- Operational Expertise: Experience and knowledge in system administration, asset and configuration management, change management, account and asset management, backup management, capacity management, vulnerability management and system health checks.
- Technical Knowledge: Good system administration competencies in cybersecurity solutions in at least one of the following domains:
- Infrastructure Security
- Endpoint Security
- Data Security
- Security Governance
- Security Analytics or Security Operation Centre (SOC)
- Access and Identity
- Certifications:
- Required – at least one security vendor product certification at intermediate level, ITIL Foundation or basic certification in cybersecurity (including ISC2 Certified in Cybersecurity, CompTIA Security+)
- Advantaged – security vendor product certifications at advanced level
- Experience working with vendor support and managing escalation processes.
- Effective communication and stakeholder management skills, with the ability to provide clear updates to clients.
- Basic project coordination skills and the ability to manage multiple priorities.
- Customer-oriented mindset with a strong sense of ownership and accountability.
- Willingness to be on standby after support hours as part of operational requirements.
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