Security Exposure Engineer – 6 Months Contract

NTT SINGAPORE PTE. LTD.; Singapore; On-site; SGD 78,000 - 123,000; Full time

Job summary

NTT Singapore Pte. Ltd. is seeking a Detection Engineer – Cybersecurity for a 6‑month contract in Singapore. The role focuses on external exposure management, third‑party risk, CTI and remediation across complex enterprise environments.

You will closely monitor internet-facing assets, perform third‑party assessments, review risk controls and drive security improvements with stakeholders across security, risk and business teams.

Qualifications

• 3–5 years of hands-on cybersecurity experience with Security Exposure Management and related areas.
• Experience conducting third‑party/vendor cybersecurity assessments.
• Experience with security questionnaires, evidence reviews and risk assessments.
• Understanding of third, fourth and nth-party cyber risk.
• Familiarity with NIST CSF, ISO 27001 and CIS Controls.
• Knowledge of AWS, Azure and/or Google Cloud Platform security.

Responsibilities

• Perform continuous external attack-surface discovery and monitoring of assets.
• Identify unknown and exposed assets and validate security exposures.
• Analyse vulnerabilities and external exposures against threat intel.
• Assess third‑party service providers including risk ratings and evidence.
• Automate monitoring and reporting using Python/PowerShell/Bash.
• Collaborate with security, risk and business stakeholders to drive remediation.

Skills

SEM & EASM

Third-party risk

Threat intel

Vuln management

Python scripting

Cloud security

Tools

SecurityScorecard

Censys

Job description

Position: Detection Engineer – Cybersecurity
Employment Type: Contract

Contract Duration: 6 months

Work Location: Singapore

Job Description

We are seeking a hands‑on cybersecurity professional with specialised experience across Security Exposure Management (SEM), External Attack Surface Management (EASM), Third-Party Cyber Risk/Assurance and Cyber Threat Intelligence (CTI).

The role will focus on continuously identifying external cyber exposures, assessing third‑party security posture, validating material cyber threats and driving remediation across complex enterprise environments.

Key Responsibilities

• Perform continuous external attack-surface discovery and monitoring of internet-facing assets, domains, subdomains, IP addresses, certificates, exposed services and cloud resources.
• Identify unknown, unmanaged and externally exposed assets and validate material security exposures.
• Analyse vulnerabilities and external exposures against exploitability and threat intelligence to determine actual organisational risk.
• Conduct end-to-end cybersecurity assessments of third‑party service providers, including inherent risk assessment, security questionnaires, evidence review, control validation, risk rating and residual-risk assessment.
• Perform cybersecurity due diligence and continuous assurance of critical third parties.
• Assess fourth‑party/nth‑party dependencies and cyber‑risk propagation across the supply chain.
• Conduct structured third‑party assessments using SIG, CAIQ, VDD/ODD or equivalent methodologies.
• Assess security controls against NIST CSF, ISO 27001 and CIS Controls.
• Investigate emerging vulnerabilities, active exploitation, external threats, leaked credentials, impersonation and digital‑risk indicators.
• Correlate threat intelligence, vulnerability information, asset criticality and external exposure to prioritise remediation.
• Validate clear-and-present-danger cyber threats affecting the organisation or critical third parties.
• Develop cyber exposure, third‑party posture, risk dashboards and management reporting.
• Automate security monitoring, enrichment, assessment and reporting activities using Python, PowerShell and/or Bash.
• Work with security engineering, infrastructure, cloud, risk and business stakeholders to drive identified risks through remediation and closure.

Essential Requirements

• 3–5 years of hands‑on cybersecurity experience with direct exposure to Security Exposure Management, EASM, Attack Surface Management or Digital Risk.
• Hands‑on experience conducting third‑party/vendor cybersecurity assessments, beyond vendor coordination or procurement activities.
• Experience conducting security questionnaires, evidence/control reviews, risk assessments and remediation tracking.
• Practical understanding of third‑party, fourth‑party and nth‑party cyber risk.
• Experience with external attack‑surface, cyber exposure, digital‑risk or threat‑intelligence platforms.
• Strong vulnerability‑management and risk‑based prioritisation experience, including CVE, CVSS and actively exploited vulnerabilities.
• Practical knowledge of NIST CSF, ISO 27001 and CIS Controls.
• Strong understanding of TCP/IP, DNS, HTTP/HTTPS, TLS, APIs and internet‑facing infrastructure.
• Security exposure across AWS, Microsoft Azure and/or Google Cloud Platform.
• Hands‑on scripting/automation experience using Python, PowerShell and/or Bash.
• Strong analytical, documentation, stakeholder‑management and security‑risk communication skills.

Relevant Technology Exposure

Hands‑on experience with one or more of the following or equivalent technologies is highly desirable:

SecurityScorecard, BitSight, RiskRecon, CyCognito, Censys, Microsoft Defender EASM, Tenable Attack Surface Management, Palo Alto Cortex Xpanse, Recorded Future, Flashpoint, Mandiant Threat Intelligence, ZeroFox, watchTowr, ServiceNow GRC/IRM and RSA Archer.

Preferred Certifications

• CompTIA Security+ / CySA+
• CEH
• GIAC GSEC / GCIH
• CISSP / Associate of ISC2
• CISM
• ISO 27001 related certifications

Candidates should have demonstrable hands‑on experience in external cyber exposure and/or third‑party cybersecurity assessment. Experience limited primarily to SOC alert monitoring, SIEM operations, general IT audit, vulnerability scanning or vendor coordination without direct cyber‑risk assessment experience may not meet the specialised requirements of this position.

We look forward to your application!