Security Architect

4 days ago

Central Region, Singapore Alphaeus Pte Ltd Full time $120,000 - $200,000 per year

Key Responsibilities


• Define and implement the security architecture for a new AWS landing zone supporting

internet-facing and intranet workloads.


• Translate GCC guardrails and compliance requirements into practical cloud security

controls.


• Work with Cloud Architect to embed security policies, IAM roles, encryption, logging,

monitoring, and incident response mechanisms into infrastructure design.


• Establish DevSecOps practices by integrating security checks into both infra CI/CD

pipeline.


• Conduct threat modelling, risk assessments, and security architecture reviews for

new services.


• Implement cloud-native and third-party security tools (e.g., AWS GuardDuty, Config,

Security Hub, CloudTrail, WAF, vulnerability scanners).


• Act as the security authority during design and build phases, providing guidance to

engineers, developers, and operations teams.


• Support security audits, assessments, and compliance checks for the landing zone.

Requirements


• 7+ years' experience in security architecture with proven expertise in cloud security

(AWS preferred).


• Strong knowledge of GCC guardrails, compliance requirements, and regulated

environments.


• Hands-on experience implementing security controls in AWS (IAM, KMS, CloudTrail,

GuardDuty, WAF, Security Hub, etc.).


• Familiarity with Terraform, IaC security controls, and DevSecOps pipeline

integration.


• Experience on hardening based on CIS benchmark Level 1/2/3.


• Strong understanding of network security, zero trust, identity & access management,

encryption, and incident response.


• Experience working in Agile delivery models and embedding security practices early in

the lifecycle.


• Excellent communication and stakeholder management skills.

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