Cybersecurity Assurance & Architecture Specialist (AWS) in London

Cybersecurity Assurance & Architecture Specialist (AWS)
An experienced Cybersecurity Assurance & Architecture Specialist is required to join a major technology and operations function responsible for the security, resilience and assurance of critical enterprise and operational systems.
This is a highly visible contract opportunity for a security professional who can combine hands-on AWS security architecture expertise with strong technical assurance and cyber resilience experience. You'll work closely with engineering, DevSecOps and delivery teams, helping to identify risks, improve security controls and ensure solutions are delivered securely without creating unnecessary barriers to delivery.
You'll be joining a large-scale environment undergoing continual transformation, supporting hundreds of business-critical systems across cloud, data, integration and operational technology platforms.
The Environment
You'll be working within a complex, regulated environment where cyber security, resilience and operational assurance are fundamental to successful delivery. The role sits at the intersection of architecture, assurance and engineering, requiring someone who can engage confidently with both technical and non-technical stakeholders.
This is not a purely governance or compliance position. The successful contractor will be expected to understand how security controls work in practice and collaborate directly with teams responsible for implementation.
Why Join?
Influence the security and resilience of large-scale operational platforms
Work across cloud, data, integration and enterprise technology programmes
Collaborate directly with engineering, architecture and delivery teams
Join a fast-paced environment where security is embedded throughout the development lifecycle
Long-term contract opportunity with significant scope and visibility
Key Responsibilities
Provide cyber security architecture guidance across AWS, SaaS and PaaS environments
Conduct technical cyber security assurance and resilience reviewsIdentify security risks, vulnerabilities and control gaps across systems and services
Support secure-by-design initiatives throughout the software delivery lifecycle
Review system integrations, network security controls and access management approaches
Validate technical security controls and assurance evidence
Support third-party and supplier security assurance activities
Work closely with engineering and DevSecOps teams to deliver practical remediation solutions
Strong AWS security architecture experience
Technical cyber security assurance experience within complex enterprise environments
Secure-by-design and security architecture expertise
Experience performing technical risk assessments and control reviews
Knowledge of NIST and NCSC-aligned security frameworks
Understanding of cloud security, network segregation, firewall controls and access management
Experience working alongside developers, engineers and technical delivery teams
Excellent stakeholder engagement and communication skills
Cyber resilience and operational resilience assessment experience
Supplier and third-party security assurance
Experience within regulated, critical infrastructure or operational environments
Exposure to CI/CD pipelines and DevSecOps practices
What We're Looking For
We're looking for a proactive, pragmatic and technically credible cyber security professional who enjoys solving problems and building relationships across engineering teams.
You'll be comfortable investigating issues independently, challenging where necessary and working collaboratively to deliver secure outcomes. Strong communication skills are just as important as technical capability, as you'll be engaging regularly with architects, developers, delivery teams and senior stakeholders.
Location: West London / Heathrow Area
Working Pattern: Hybrid, typically 1-2 days onsite
IR35 Status: Inside IR35
Start Date: ASAP
We welcome applicants from all backgrounds. Our Client are an equal opportunities employer.
Right to work in the UK is required for this role.
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