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IT System Administrator

salary Salary :

$3,500 - 6,000 monthly

icon briefcase Job Type : Full Time

Number of Applicants

 : 

000+

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Job Description - IT System Administrator

Key Responsibilities

  • Install, configure, and maintain operating systems, hardware, and third-party software (Windows and Linux).
  • Perform system upgrades, patching, and performance optimization to ensure efficiency and reliability.
  • Design, implement, and maintain file systems, storage, and backup/recovery solutions.
  • Diagnose and resolve hardware, software, and network issues; coordinate with vendors and stakeholders for timely resolution.
  • Administer and maintain enterprise antivirus, endpoint protection, and system hardening policies, including Microsoft Defender for Endpoint.
  • Manage user identity and access controls across on-premises Active Directory, hybrid environments, and Azure Entra ID.
  • Maintain configuration management, documentation, and operational standards.
  • Implement and monitor disaster recovery and business continuity processes.
  • Automate system operations using scripting languages (PowerShell, Bash, or Python).
  • Monitor infrastructure health, performance, and logs using observability tools (e.g., Zabbix, Prometheus, Grafana, Splunk).
  • Support cloud and virtualization platforms (e.g., Azure, AWS, VMware).
  • Ensure system security, regulatory compliance, and audit readiness (e.g., Cybertrust Mark Essential, ISO 27001).
  • Conduct and support system security audits, including third-party risk assessments, regulatory/compliance audits, and internal IT security reviews.
  • Operate and manage SIEM systems, such as ManageEngine, with experience in Microsoft Sentinel preferred.
  • Perform vulnerability assessments using Tenable and assist in remediation planning and execution.
  • Manage and monitor Privileged Access Security (PAS) using Silverfort or similar identity protection platforms.
  • Oversee endpoint protection and threat response with Microsoft Defender for Endpoint.
  • Collaborate with cross-functional teams to ensure secure, reliable, and high-performing IT operations.
  • Participate in infrastructure projects, remediation efforts, and continuous improvement initiatives.

Job Requirements

  • Strong ability to work collaboratively in a team-oriented environment.
  • Excellent communication, analytical, and problem-solving skills.
  • Project management experience with the ability to prioritize multiple tasks effectively.
  • Comfortable working in dynamic, hybrid, or regulated environments.
  • Familiarity with MAS outsourcing and IT risk management guidelines is advantageous.
  • Proficiency in automation and scripting (PowerShell, Bash, Python).
  • Hands-on experience with system security audits, including third-party risk assessments, regulatory/compliance audits, and IT security operations.
  • Practical experience with the following tools and technologies is strongly preferred:
  • Microsoft Defender for Endpoint (EDR/Endpoint Security)
  • ManageEngine (SIEM/SOC operations)
  • Microsoft Sentinel (SIEM & Security Analytics)
  • Tenable (Vulnerability Assessment and Management)
  • Silverfort (Privileged Access Security and Identity Protection)
  • Active Directory (On-Prem, Hybrid Mode)
  • Azure Entra ID / Azure Active Directory (Cloud Identity & Access Management)
  • Experience in system hardening, security compliance, and audit preparation.
  • Exposure to cloud infrastructure (Microsoft Azure, AWS, or GCP) and virtualization (VMware, Hyper-V).
  • Familiarity with monitoring and logging tools (e.g., ELK, Prometheus, Splunk) is a plus.
  • Ability to work independently and take ownership of assigned systems and projects.

Qualifications

  • Bachelor’s Degree or higher in Computer Science, Information Technology, or a related field.

  • Certifications such as Microsoft Certified Systems Engineer (MCSE)Microsoft Security Operations AnalystMicrosoft Entra Administrator, or Linux Professional Institute (LPIC) are advantageous.

  • At least 5 years of relevant experience in system administration, infrastructure engineering, or IT security operations.

  • Preferably Junior to Mid-Level Executives specializing in IT Infrastructure, System/Network/Database Administration, or equivalent.

Original job IT System Administrator posted on GrabJobs ©. To flag any issues with this job please use the Report Job button on GrabJobs.
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About the Company

DATAPOST PTE LTD

DataPost is the region’s market leader in handling secured data services, and is the largest entity of this industry in Singapore, with the capacity and capability to process data into various digital and physical output. Our secure operational environments are audited regularly by the Banks and ext...

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