Job Description:
Senior AWS Cloud Security Architect
The Senior AWS Cloud Security Architect is responsible for designing, implementing, and governing secure, compliant, and resilient AWS environments across multi-account cloud infrastructures.
You will lead the architecture and automation of identity, data protection, threat detection, and network segmentation controls across the AWS ecosystem.
Key Responsibilities:
- Design and implement secure landing zones using AWS Control Tower, AWS Organizations, and Service Control Policies (SCPs).
- Define multi-account security guardrails for shared services, workloads, and sandbox environments.
- Create reference architectures covering security zones, network segmentation, and cross-account communication (PrivateLink, AWS WAN).
- Lead threat modelling and risk assessments for new workloads and services (Lambda, ECS, EC2, S3, RDS, DynamoDB, etc.).
- Develop security-by-design templates integrated into Infrastructure as Code (IaC) pipelines.
- Partner with compliance teams to maintain continuous alignment with CIS Benchmarks and organizational risk frameworks.
- Implement federated access and single sign-on with AWS IAM Identity Center (AWS SSO), Okta, and Azure AD.
- Manage cross-account roles, STS trust policies, and temporary credentials for developers and third parties.
- Automate secret and credential rotation with AWS Secrets Manager and AWS Systems Manager Parameter Store.
- Enforce encryption at rest using AWS KMS, CloudHSM, and envelope encryption patterns.
- Ensure encryption in transit (TLS 1.2/1.3) across internal and public endpoints.
- Manage key rotation, cross-region replication, and HSM-based root of trust.
- Implement S3 Object Lock, Macie for data discovery and classification, and Access Points for fine-grained data access.
- Implement PrivateLink, AWS WAN, and Route 53 Resolver endpoints for service-to-service isolation.
- Configure Web Application Firewall (WAF) and AWS Shield Advanced for DDoS mitigation.
- Enforce egress control through Cloud NAT, AWS Gateway Load Balancer (GWLB), or custom proxies.
- Deploy and integrate AWS Security Hub, GuardDuty, Macie, and Inspector for proactive threat detection.
- Configure Amazon Detective for forensic investigation and anomaly correlation.
- Integrate findings into SIEM/SOAR platforms such as FortiSOAR, or Azure Sentinel.
- Automate response playbooks with AWS Step Functions, Lambda, and SNS alerts.
- Implement AWS Config rules and Conformance Packs to enforce compliance (e.g., CIS AWS Foundations Benchmark).
- Use AWS Artifact for vendor assurance and control documentation.
- Manage compliance dashboards via Security Hub, Trusted Advisor, and Control Tower drift detection.
Core AWS Security & Supporting Services
Identity & Access Management: IAM, IAM Identity Center (SSO), AWS Organizations, Access Analyzer, Cognito, Resource Access Manager (RAM), Directory Service.
Encryption & Key Management: KMS, CloudHSM, Secrets Manager, SSM Parameter Store, Certificate Manager (ACM), Private CA.
Network & Perimeter Security: Network Firewall, WAF, Shield (Standard & Advanced), PrivateLink, AWS WAN, Route 53 Resolver, Network LoadBalancer, Application LoadBalancer.
Threat Detection & Monitoring: GuardDuty, Detective, Security Hub, Inspector, Macie, CloudTrail, Config, CloudWatch, CloudWatch Logs, CloudWatch Metrics.
Compliance & Governance: Audit Manager, Artifact, Control Tower, Trusted Advisor, Config Conformance Packs, Service Catalog, Organizations SCPs.
Data Protection: S3 Object Lock, Macie, Lake Formation, DLP integrations, S3 Access Points.
Vulnerability & Posture Management: Inspector (EC2, ECR, Lambda), Trusted Advisor, Config, Security Hub.
Application & Container Security: ECR image scanning, ECS task IAM roles, Lambda least privilege, Secrets Manager, API Gateway authorization.
Incident Response & Automation: Step Functions, Lambda, Systems Manager Automation, SNS, CloudWatch Alarms, EventBridge Rules.
Required Skills and Experience:
- 8+ years in cybersecurity, with 4+ years in AWS cloud security architecture.
- Deep understanding of AWS Well-Architected Framework (Security Pillar).
Preferred Certifications
- AWS Certified Security Specialty
- AWS Certified Solutions Architect Professional
- CISSP / CISM / CCSP / GCSA / GIAC Cloud Security Automation
