Senior Cyber Security Architect & AI Risk Advisor

Optimum Solutions (Singapore) Pte Ltd.; Singapore; On-site; SGD 130,000 - 180,000; Full time

Job summary

Optimum Solutions (Singapore) Pte Ltd. seeks an experienced Security Consultant to join its Security Architecture and Consultancy team.

The role advises on secure design across cloud, on-premises, and hybrid environments, and performs threat modelling and risk assessments to inform remediation strategies. The candidate will develop enterprise security standards and assess AI/ML security across development and operations, interacting with senior stakeholders to translate findings into business

Qualifications

• 8+ years of relevant cybersecurity experience with strong security architecture, risk assessment, and consultancy.
• Familiarity with Singapore Government security policies (IM8, CCoP); experience working with Singapore Government agencies is advantageous.
• Bachelor's degree in Computer Science, Information Security, Cybersecurity, or related discipline.

Responsibilities

• Act as a trusted security advisor to project teams, providing guidance on secure system design across cloud, on-premises, and hybrid environments throughout the project lifecycle.
• Conduct security architecture reviews to identify vulnerabilities, misconfigurations, control gaps, and design risks, and provide prioritised remediation recommendations.
• Advise on security architecture and design patterns across cloud security, application security, IAM, data protection, and AI systems.
• Perform threat modelling and security risk assessments, identifying attack vectors, evaluating risks, and recommending appropriate security controls.
• Translate technical security findings into clear business impact and risk considerations for technical teams and senior stakeholders.
• Develop and maintain enterprise security standards, baselines, and reusable security design patterns across areas such as network, endpoint, cryptography, cloud, application, and AI security.
• Assess the security posture of AI and machine learning systems across development, training, deployment, and operational lifecycles.
• Advise on the secure and responsible deployment of AI, including security guardrails, human oversight, incident response, and third-party AI/LLM risks.
• Evaluate third-party AI services and LLM integrations, considering data residency, vendor access, model behaviour, and supply-chain risks.

Skills

Security architecture

Risk assessment

Security consultancy

Cloud security

AI/ML security

Threat modelling

Data protection

IAM

Stakeholder comms

Education

Bachelor's degree in Computer Science or Information Security

Job description

Optimum Solutions (Singapore) Pte Ltd. seeks an experienced Security Consultant to join its Security Architecture and Consultancy team.

The role advises on secure design across cloud, on-premises, and hybrid environments, and performs threat modelling and risk assessments to inform remediation strategies. The candidate will develop enterprise security standards and assess AI/ML security across development and operations, interacting with senior stakeholders to translate findings into business