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Platform Security Engineer
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Platform Security Engineer (AWS) - CAF Framework | Contract | Immediate Start
Contract: 6 Months (£450 Outside IR35)
Location: Hybrid (UK)
Start: Immediate
We're supporting a well-established UK technology business as they strengthen their cloud security posture and deliver against the Cyber Assessment Framework (CAF).
This is an ideal opportunity for an experienced Platform Security Engineer or Cloud Security Engineer with deep AWS expertise and hands-on experience delivering security improvements aligned to CAF Level 4 (or equivalent government/regulated security frameworks).
You'll work closely with platform, infrastructure and security teams to assess existing environments, implement security controls, produce compliance evidence, and help drive the organisation through a critical security programme.
What You'll Be Doing
- Lead the implementation of security controls across a large AWS environment
- Drive delivery against the CAF 4 security framework
- Improve cloud security posture across identity, networking, logging and resilience
- Produce technical documentation and compliance evidence for senior stakeholders
- Review and strengthen supplier and cloud security governance
- Implement security best practices across IAM, MFA, networking and encryption
- Enhance logging, monitoring, alerting and threat detection capabilities
- Improve backup, recovery and incident response processes
- Work alongside platform engineering teams to embed security into cloud infrastructure
- Provide regular progress updates to senior stakeholders throughout the engagement
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Essential Experience
- Strong experience as a Platform Security Engineer, Cloud Security Engineer or Security-Focused Platform Engineer
- Expert-level AWS security knowledge
- Previous delivery against Cyber Assessment Framework (CAF) controls (CAF 4 experience highly desirable)
- Strong understanding of cloud identity and access management (IAM)
- Experience securing Kubernetes/EKS environments
- Cloud networking and segmentation expertise
- CloudTrail, GuardDuty, VPC Flow Logs and security monitoring
- Infrastructure security and security architecture
- Experience producing compliance evidence and technical security documentation
- Comfortable engaging with senior technical and non-technical stakeholders
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Nice to Have
- GCP exposure
- SIEM implementation experience
- Incident response and digital forensics knowledge
- Experience within regulated or highly secure environments
- Terraform or Infrastructure as Code experience
Tech Stack
- AWS
- IAM
- CAF 4
- EKS / Kubernetes
- CloudTrail
- GuardDuty
- VPC Flow Logs
- Cloud Networking
- MFA
- TLS / PKI
- DynamoDB
- RDS
- GitHub
- Terraform (desirable)
What's on Offer
- Immediate start
- Initial 6-month contract with potential extension
- Opportunity to shape the security posture of a large-scale cloud platform
- High-impact project working directly with senior engineering and security leadership
- Flexible hybrid working
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