Senior Cybersecurity Architect & VAPT Leader

Land Transport Authority (LTA); Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Land Transport Authority (LTA) is seeking a Senior / Executive Cybersecurity Engineer in Cyber Architecture & Development to strengthen the resilience of critical digital systems. You will lead end-to-end VAPT across applications, infrastructure, networks, and cloud, design Adversarial Attack Simulation exercises, and advise on secure architecture with governance.

You will explore AI-enabled testing approaches, translate findings into actionable recommendations, and collaborate with project

Qualifications

• Experience in performing VAPT across applications, infrastructure, networks and cloud environments.
• Hands-on adversary emulation and red/purple teaming experience is a plus.
• Knowledge of AI-enabled testing approaches and governance is desirable.

Responsibilities

• Lead and deliver end-to-end VAPT across applications, infrastructure, networks, and cloud environments by identifying exploitable weaknesses, validating business impact, and helping system owners remediate effectively.
• Design and execute safe, controlled Adversarial Attack Simulation exercises that emulate realistic threat actors and attack paths, revealing blind spots across controls.
• Explore, prototype, and evaluate AI-enabled approaches for VAPT, including test planning, attack-path analysis, vulnerability triage, evidence correlation, report generation, and remediation guidance, with appropriate governance and human oversight.
• Serve as a trusted cybersecurity advisor to digital projects by conducting risk assessments, reviewing security architecture, and recommending practical, risk-informed security solutions.
• Partner with architects, developers, project teams, system owners, vendors, and security operations teams to embed secure-by-design practices throughout the system lifecycle.
• Track emerging vulnerabilities, attacker techniques, AI-enabled threats, and security technologies, translating developments into stronger testing methods, playbooks, and defensive improvements.
• Communicate complex technical findings clearly to both technical and non-technical stakeholders, turning assessment results into prioritised and actionable recommendations.

Skills

VAPT methodologies

Adversary emulation

Red team / purple team

Security architecture review

AI-assisted security testing

Stakeholder communication

Tools

MITRE ATT&CK

Security testing tools

Job description

Land Transport Authority (LTA) is seeking a Senior / Executive Cybersecurity Engineer in Cyber Architecture & Development to strengthen the resilience of critical digital systems. You will lead end-to-end VAPT across applications, infrastructure, networks, and cloud, design Adversarial Attack Simulation exercises, and advise on secure architecture with governance.

You will explore AI-enabled testing approaches, translate findings into actionable recommendations, and collaborate with project