Information Technology Security Officer (ITSO)

APAR TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 100,000 - 125,000; Full time

Job summary

A leading company in Singapore is seeking an IT Security and Cloud Systems Administrator to handle security risk management, system administration, and AWS cloud services. The successful candidate will have at least 3 years of experience, hold professional certifications such as CISSP, and possess strong technical and soft skills. In this dynamic role, you will contribute to enhancing the organization's security posture and optimizing cloud infrastructure.

Qualifications

• Minimum 3 years of experience in IT security, specifically in enterprise systems, network, or cloud infrastructure.
• Professional certification such as CISSP or CISA is required.
• In-depth knowledge of IT security best practices and governance frameworks.

Responsibilities

• Conduct IT security risk assessments and propose mitigation strategies.
• Administer AWS services and maintain secure cloud infrastructure.
• Lead security audits and ensure compliance with security standards.

Skills

IT security governance

Risk assessment

Incident management

Vulnerability assessments

Penetration testing

Linux server administration

Windows server administration

AWS cloud services

Scripting

Documentation

Education

CISSP

CISA

Job description

Key Responsibilities:

IT Security & Risk Management

• Conduct IT security risk assessments in collaboration with the Authority to identify threats, assess risk levels, and propose mitigation strategies.
• Prepare and deliver IT security risk assessment reports as input to the security design and architecture of delivered systems.
• Coordinate security incident handling, investigation, and reporting.
• Lead and coordinate security audits, vulnerability assessments, and penetration tests.
• Consolidate testing results and ensure timely remediation of findings.
• Maintain and update security documentation, including policies, standards, and procedures.
• Ensure overall IT security compliance with requirementsspecified by the Authority.

System Administration & Cloud Infrastructure

• Install, configure, and maintain Linux (RHEL, CentOS, Ubuntu) and Windows Server environments.
• Perform routine system monitoring, OS patching, and upgrade management.
• Manage services including Active Directory, Group Policy, DNS, DHCP, and other Windows roles.
• Troubleshoot OS-level issues and optimize system performance and capacity.

Cloud Administration (AWS)

• Administer AWS services including EC2, S3, IAM, Lambda, CloudWatch, VPC, and Route 53.
• Provision and maintain secure and cost-optimized AWS infrastructure.
• Automate infrastructure tasks using AWS CLI, Lambda, and scripting (Shell, Python, Node.js).
• Monitor workloads using CloudWatch and integrate alerts with monitoring systems.

Required Qualifications:

• Minimum 3 years of experience in IT security, specifically in enterprise systems, network, or cloud infrastructure.
• Professional certification such as CISSP, CISA, or equivalent is required.
• In-depth knowledge of:
  • IT security governance, risk assessment, and incident management.
  • Vulnerability assessments and penetration testing.
  • Security standards and best practices (ISO/IEC, NIST, CIS, etc.).
  • Technical system security and architecture.

Technical Skills:

• Proficient in both Linux and Windows server administration.
• Strong knowledge of AWS cloud services and cloud security best practices.
• Scripting expertise in Shell, Python, or Node.js.
• Familiar with automated deployment and monitoring tools.
• Hands-on experience in implementing secure system configurations.

Soft Skills:

• Strong interpersonal and communication skills.
• Ability to present complex technical information clearly to non-technical stakeholders.
• Excellent problem-solving and documentation abilities.
• Able to work independently and with distribution teams

EA License: R1873481

Company EA License: 11C4879