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SR2 | Socially Responsible Recruitment | Certified B Corporation™
Cloud Security Engineer - SC Cleared - Inside IR35

Cloud Security Engineer - SC Cleared - Inside IR35

On site

London, United kingdom

Freelance

12-05-2025

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Expired

Job Specifications

SR2 is seeking two SC-cleared Cloud Security Engineers with deep expertise in AWS GuardDuty to support the delivery of secure and scalable cloud environments for a high-priority central government digital initiative.

This role will place you at the centre of cloud-native threat detection and response, with a specific focus on deploying, tuning, and operationalising GuardDuty. You will act as the subject matter expert for integrating GuardDuty across multiple AWS accounts and ensuring that detection capabilities are aligned to threat models, incident response playbooks, and compliance objectives.

Key Responsibilities:
Act as SME for AWS GuardDuty: deployment, configuration, alert tuning, and integration with downstream response processes
Work with platform, architecture, and SOC teams to embed GuardDuty into security operations and agile delivery workflows
Define detection rules and thresholds aligned to business risk and threat profiles
Advise on triage processes, integration with SIEM tooling, and use of GuardDuty findings for incident investigation
Support wider AWS security efforts including posture management, governance, and compliance monitoring
Essential Skills & Experience:
Extensive experience in cloud security engineering with a specific focus on AWS GuardDuty
Strong understanding of AWS-native security services including IAM, KMS, CloudTrail, Security Hub, Config, and Macie
Demonstrable experience in setting up governance frameworks using AWS Config Rules, SCPs, and AWS Organizations
Familiarity with automating security controls using Python, Bash, or Infrastructure-as-Code tools (e.g., Terraform)
Ability to operate effectively within government or highly regulated environments, and to articulate security risk in context
Excellent documentation and communication skills with experience presenting findings and recommendations to technical and non-technical stakeholders
Desirable:
Hands-on experience integrating AWS logs into SIEM platforms (e.g., Splunk, ELK) for correlation and alerting
Familiarity with containerised workloads and security for EKS or similar environments
Relevant AWS certifications (e.g., AWS Certified Security – Specialty, Solutions Architect)

About the Company

Built to Make an Impact. We exist to harness the power of recruitment to create meaningful change across the world. Our mission is simple but profound: to connect purpose-driven talent with industries that shape a better future. From driving innovation in Tech for Impact, advancing the global Clean Energy transition, to empowering Central Government Public Services, we are a Global Recruitment Group committed to making an impact and leaving a positive legacy. Why We Exist We believe recruitment should do more than fil... Know more