IT Security Officer
7000 - 9000 SGDNTT Singapore Pte Ltd
The IT Security Officer will support the customer's information security program across a hybrid infrastructure consisting of on-premises systems and AWS cloud services. This role is responsible for driving the vulnerability management lifecycle, maintaining the organizational Risk Register, coordinating risk acceptance and remediation activities with stakeholders, and overseeing day-to-day security operations related to signature updates and vendor vulnerability notifications.
Key Responsibilities
Vulnerability Management
• Execute and manage regular vulnerability scans across on-premises infrastructure and AWS services (EC2,S3, RDS, and other relevant services)
• Generate, review, and distribute vulnerability scan reports to relevant technical teams and leadership
• Follow up with Subject Matter Experts (SMEs) on outstanding vulnerability findings to ensure timely remediation or documented exceptions
• Track remediation status and escalate overdue items per defined SLAs
Risk Register & Risk Acceptance
• Own and maintain the organization's Risk Register, ensuring it reflects current, accurate risk data
• Draft Risk Acceptance forms for identified risks that cannot be immediately remediated
• Coordinate with business and technical stakeholders to review, negotiate, and obtain formal approval/sign-off on risk acceptances
• Periodically review accepted risks for continued validity and reassessment
Security Operations Oversight
• Monitor and verify that security signature updates (AV/EDR, IDS/IPS, etc.) are applied consistently across the environment
• Review vendor security bulletins and vulnerability notifications to determine applicability to the customer's environment
• Ensure timely triage and action on vendor-disclosed vulnerabilities affecting in-scope systems
Impact& Risk Analysis
• Perform impact analysis on identified vulnerabilities using CVSS (Common Vulnerability Scoring System) scores
• Contextualize CVSS base scores against the actual environment (asset criticality, exposure, compensating controls) to determine real-world risk and prioritization
• Provide risk-based recommendations to stakeholders to support remediation prioritization decisions
Reporting& Communication
• Prepare periodic status reports/dashboards on vulnerability management, risk register status, and outstanding risk acceptances for leadership review
• Communicate effectively with technical SMEs, business stakeholders, and management across varying levels of technical understanding
Required Qualifications
• Bachelor's degree in Information Security, Computer Science, or related field (or equivalent work experience)
• 3–5+ years of experience in IT security operations, vulnerability management, or risk management
• Hands-on experience with vulnerability scanning tools (e.g., Tenable/Nessus, Qualys, Rapid7)
• Working knowledge of AWS security services and shared responsibility model (e.g., Security Hub, GuardDuty, Inspector, IAM)
• Solid understanding of on-premises infrastructure security (servers, network devices, endpoints)
• Strong understanding of CVSS scoring methodology and practical risk-based prioritization
• Experience developing and managing Risk Registers and Risk Acceptance documentation
• Excellent stakeholder management and communication skills, with ability to work cross-functionally
Preferred Qualifications
• Relevant certifications: Security+, CySA+, CISSP, CRISC, AWS Security Specialty, or similar
• Experience with GRC tools (e.g., ServiceNow GRC, Archer)
• Familiarity with frameworks such as NIST 800-53, NIST CSF, or ISO 27001
• Experience working in a hybrid on-prem/cloud environment supporting external customers
Soft Skills
• Strong analytical and problem-solving skills
• Detail-oriented with strong documentation habits
• Ability to influence and drive accountability without direct authority
• Comfortable working with ambiguity and competing priorities
4000 - 7000 SGD
...related field. Experience · Minimum 2–5 years of experience in IT security operations, cybersecurity operations, vulnerability management,... ..., and cloud security concepts. · Proficiency in Microsoft Office applications, particularly Excel and PowerPoint, for reporting and...4000 - 7000 SGD
...Key Responsibilities: Security Architecture Assist in maintaining security architecture diagrams, records, and approved design documentation. Track security architecture review requests and coordinate inputs from project teams and relevant stakeholders. Maintain...7000 - 10500 SGD
...Position Overview The IT Security Officer is responsible for supporting NParks' day-to-day cybersecurity operations, vulnerability management activities, incident response coordination, security service management, and compliance monitoring across both on-premises and cloud...5000 - 8000 SGD
...Responsibilities: · Stay abreast of the current threat landscape and cyber security events · Develop and deploy security hardening guidelines based... ...Information Technology orCyber Security · At least 4 years of IT or Cyber Security experience · Professional certifications such...7500 - 11000 SGD
...IT Security Officer (ITSO) Working Hours: Mon-Fri (Hybrid) Location: Central Remuneration: Up to $11,000 + AWS Job Description We are seeking an IT Security Specialist to provide cybersecurity support across on-premises and cloud environments. The role focuses...5500 - 6500 SGD
...Management- Assist in vulnerability scanning and assessments to identify security weaknesses within the client’s environment. Help prioritize... ...Provide regular vulnerability reports and updates to the Senior IT Security Manager. Firewall Rules Review and Management-...7000 - 9500 SGD
...ITSO – IT Security Officer Responsibilities and Requirements · At least 5 years combinedwork experience in software development, application security and cloud computing (e.g. AWS) · Good understanding of mobile and web application architectures, including APIs and...5300 - 6300 SGD
...What the officer will be working on: Manage security vendors and deliverables. Manage periodic security testing. Assess mitigation/remediation for adequacy and effectiveness. Manage timely and effective mitigation/remediation. Review security reports. Review...- ...create positive impact on people’s lives, then we would love to hear from you. Co-Developement Business Unit is hiring for IT Security Officer This is a 12 months fixed-term contract role. Location: 52 Jurong Gateway Road What will you do? BCA is looking for...
5000 - 10000 SGD
...About the Role We are seeking an Information Technology Security Officer to support cybersecurity governance, assurance, and security management activities across the organisation. This role will be involved in key cybersecurity functions including security architecture...6000 - 7500 SGD
...Job Overview We are looking for an IT Security Operations Specialist to support day-to-day cybersecurity and infrastructure security operations across on-premises and cloud environments. The role will focus on vulnerability management, security incident response,...8000 - 9200 SGD
...IT Security Officer (ITSO) About the role Our client, runs critical digital systems that handle sensitive data. The ITSO is the security point of contact for assigned systems, making sure they meet government security policy across their full lifecycle. You will work...3500 - 5000 SGD
...Role Overview We are seeking an experienced Application Security Officer to support cybersecurity risk management, application security reviews... ...Conduct cybersecurity risk assessments for new and existing IT systems, applications, infrastructure, and cloud services....8000 - 10000 SGD
...Role Overview We are looking for an IT Security Officer specializing in Vulnerability Management and IT Risk Management to support a hybrid on-premises and AWS environment. The role will own the vulnerability management lifecycle, maintain the IT Risk Register, drive...4000 - 6200 SGD
...Role: • The IT Security Engineer will be responsible for implementing, operating, and supporting security controls for mission-critical systems within a secured environment. This role covers both: • Day 1 Security (Build / Project Implementation) • Day 2 Security (...5500 - 8000 SGD
...Infrastructure-as-Code and CI/CD pipelines • Apply change management, release review and rollback discipline to protect production Security Operations & Compliance • Implement and maintain security baselines, patching, endpoint protection/EDR and vulnerability...6000 - 10000 SGD
...Employment Type: Full Time Contract (1 year renewable with chances of conversion) We are seeking an Information Technology Security Officer to support the organisation’s cybersecurity governance, assurance and security management activities. The role covers security architecture...5000 - 7000 SGD
...Responsibilities Plan, implement, manage, monitor, and maintain IT security solutions across the organization. Deploy, configure, maintain, and upgrade enterprise security platforms, including Endpoint Detection and Response (EDR), network security appliances, and vulnerability...6500 - 7500 SGD
1. Security Operations & Incident Response • Monitor and investigate security alerts (directly or via SOC) • Lead or support incident response... ...remediation based on business risk • Coordinate patching with IT and application teams • Track remediation progress and report...2600 - 3200 SGD
...premises and personnel; and the harmony of earth and people Perform security checks and access control responsibilities Handle any... ...perimeter Job Requirements Proven work experience as a security officer or relevant position Trained security officer with relevant...5000 - 6500 SGD
...Responsibilities: Support infrastructure projects by integrating cybersecurity controls and security requirements throughout the project implementation lifecycle. Implement, maintain, and periodically review operating system security baselines to ensure alignment with...8000 - 10000 SGD
...We are looking for an experienced IT Security Manager to support cybersecurity initiatives across application and technology projects. The role combines security implementation, governance, compliance, testing, and stakeholder management , ensuring solutions meet internal...3090 SGD
..., controlling access, responding to incidents, and deterring crime, acting as a visible deterrent and first responder for safety and security within various environments like businesses, events, or residential areas Job Requirements PLRD License Required CBM Pte...2475 - 2675 SGD
...Job Requirements ~ Security Officer (must possess SPF approved security license) ~ Monthly Salary : Year 2026 ( 2,475 SGD for 44 hours (11 Hrs OT) : total salary ~3,400 SGD ) Duties & Responsibilities Screening Patrolling and guarding site premise Access...8000 - 13000 SGD
...information, visit omnicommedia.com Summary The Information Security Officer (ISO) is a Practice Group/Network embedded security & risk... ...mitigate future incidents ·Collaborate with agency staff and IT to ensure information security risks in both ongoing and planned...3000 - 3100 SGD
...rotating shifts | Lunch provided | AWS and bonus Duties & Responsibilities: Routine patrolling and clocking to ensure safety and security Respond to emergency incidents/accidents at site Manage disorderly conduct and threatening behaviour Observe, inspect, and...2475 - 2500 SGD
...Job Description Perform day-to-day security operations in the Club. Remind and enforce security policies and procedures to members... ...assigned by the management. Requirements: Possess valid Security Officer Licence. Physically fit and healthy. Friendly and service-...8000 - 10000 SGD
...IT Security Engineer / Senior IT Security Engineer We are seeking an experienced IT Security Engineer to manage security operations, strengthen IT security controls and support compliance across enterprise systems. Responsibilities Monitor security alerts, investigate...3090 - 3290 SGD
...Company Overview Force-One Security provides manpower security, security audits, CCTV surveillance, and carpark gantry systems for clients including residential condominiums, country clubs, warehouses, and construction sites. Job Summary You will perform security patrols...3110 - 3440 SGD
...Patrolling. Access and Egress Control. Basic Incident Report. Skills and Experience: ~4 Basic Licensing units to be Security Officers. ~ OBSE - Operating Basic Security and Access Control Equipment. ~ RTT – Recognize Terrorist Threats. ~ WSQ – Handle security...
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to IT Security Officer. Be the first to apply!
