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About the Role

The Digital M&A Advisory practice advises private equity investors, infrastructure funds, and corporate clients on technology, IT, cyber, and digital risks across acquisitions, portfolio companies, and strategic transformation initiatives. This role is for a technically strong cloud security specialist with hands-on experience in Microsoft Azure and Amazon Web Services (AWS). You will act as the technical cloud security lead, assessing cloud security posture, identifying exposures, and translating technical findings into business and investment implications.

Responsibilities

Leading the cloud security elements of engagements across private equity and corporate clients.
Leading technical cloud security reviews of Azure and AWS environments as part of cyber due diligence, technical review, and portfolio company engagements.
Assessing cloud tenancy and account architecture, including Azure management groups, subscriptions, and landing zones, and AWS Organizations, accounts, OUs, and Control Tower set-up.
Reviewing identity and access management across cloud and hybrid environments.
Evaluating cloud network architecture and segmentation.
Assessing cloud security configuration and posture using native and third-party tooling against CIS Benchmarks and Well-Architected security guidance.
Reviewing data protection controls, including encryption, key management, secrets management, storage exposure, and backup resilience.
Assessing logging, monitoring, and detection capabilities.
Reviewing infrastructure-as-code, DevSecOps practices, and CI/CD pipeline security.
Translating technical findings into prioritized, commercially relevant risks, remediation roadmaps, and cost estimates.
Producing high-quality reports, presentations, and executive briefings.
Managing technical workstreams and supporting engagement delivery across multiple concurrent projects.
Working closely with colleagues across technology, cyber, M&A, and risk advisory disciplines.
Contributing to the development of the team's technical review methodologies, cloud assessment tooling, and market offerings.
Supporting client engagements across the UK and EMEA.

Requirements

Demonstrable experience in cloud security engineering, cloud architecture, security consulting, or a related technical role.
Strong, hands-on knowledge of Microsoft Azure and AWS, including technical set-up, tenancy/account structure, and security architecture.
Experience crafting, implementing, or assessing identity and access management (Entra ID, AWS IAM, PIM/PAM, conditional access, federation and SSO).
Experience crafting, implementing, or assessing landing zones, management groups, AWS Organizations, and guardrails (Azure Policy, SCPs).
Experience crafting, implementing, or assessing cloud network security and hybrid connectivity.
Experience crafting, implementing, or assessing cloud security posture management and workload protection (CSPM/CWPP/CNAPP).
Experience crafting, implementing, or assessing logging, monitoring, and threat detection (Sentinel, Defender, GuardDuty, CloudTrail).
Experience crafting, implementing, or assessing encryption, key, and secrets management.
Experience crafting, implementing, or assessing container and Kubernetes security (AKS, EKS).
Experience crafting, implementing, or assessing infrastructure-as-code (Terraform, Bicep/ARM, CloudFormation) and DevSecOps.
Experience crafting, implementing, or assessing cloud backup, resilience, and disaster recovery.
Familiarity with CIS Benchmarks for Azure and AWS.
Familiarity with Microsoft Cloud Security Benchmark.
Familiarity with AWS and Azure Well-Architected Frameworks (Security Pillar).
Familiarity with Cloud Adoption Frameworks.
Familiarity with NIST CSF.
Familiarity with ISO 27001 / 27017.
Familiarity with CSA Cloud Controls Matrix.
Understanding of attack paths and common cloud attack techniques.
Ability to read and interpret cloud configuration exports, scripts, and tooling outputs.
Experience identifying and assessing cloud and cyber risks within complex environments.
Ability to communicate technical findings and business implications to both technical and non-technical stakeholders.
Strong analytical and problem-solving skills.
Commercial awareness and the ability to understand business implications of technology and security decisions.
Excellent written and verbal communication skills.
Experience managing technical workstreams and contributing to successful project delivery.
Strong stakeholder management and presentation skills.
Ability to engage effectively with both technical teams and senior business executives.
Experience developing positive client relationships.
Comfortable working within multidisciplinary and global teams and fast-paced consulting environments.
Ability to manage multiple engagements and competing priorities.
Highly organized with strong attention to detail and quality.
Experience with Google Cloud Platform or multi-cloud environments.
Exposure to attack path analysis, exposure management, or cyber risk quantification platforms.
Experience of cloud penetration testing, red teaming, or security assurance reviews.
Experience supporting cloud migrations, tenant-to-tenant migrations, or separation/integration programs.
Experience working with private equity-backed businesses or large corporate organizations.
Experience mentoring junior team members or supporting team development initiatives.
Interest in business development and market-facing activities.
Experience or interest in line management.
Interest in supporting client relationship management.

Skills

Microsoft Azure
Amazon Web Services (AWS)
Cloud Security Engineering
Cloud Architecture
Security Consulting
Identity and Access Management (IAM)
Microsoft Entra ID
AWS IAM
Privileged Access Management (PAM)
Conditional Access
Federation
Single Sign-On (SSO)
Landing Zones
Management Groups
AWS Organizations
Guardrails
Azure Policy
Service Control Policies (SCPs)
Cloud Network Security
Hybrid Connectivity
Cloud Security Posture Management (CSPM)
Cloud Workload Protection Platforms (CWPP)
Cloud-Native Application Protection Platforms (CNAPP)
Logging
Monitoring
Threat Detection
Microsoft Sentinel
Microsoft Defender for Cloud
AWS GuardDuty
AWS CloudTrail
Encryption
Key Management
Secrets Management
Container Security
Kubernetes Security
Azure Kubernetes Service (AKS)
Amazon Elastic Kubernetes Service (EKS)
Infrastructure-as-Code (IaC)
Terraform
Bicep
ARM Templates
AWS CloudFormation
DevSecOps
CI/CD Pipeline Security
Cloud Backup
Resilience
Disaster Recovery
CIS Benchmarks
Microsoft Cloud Security Benchmark
AWS Well-Architected Framework
Azure Well-Architected Framework
Cloud Adoption Frameworks
NIST CSF
ISO 27001
ISO 27017
CSA Cloud Controls Matrix
Attack Path Analysis
Privilege Escalation
Misconfiguration Exploitation
Credential Compromise
PowerShell
Azure CLI
AWS CLI
Kusto Query Language (KQL)
Risk Assessment
Problem-Solving
Stakeholder Management
Presentation Skills
Client Relationship Management
Teamwork
Google Cloud Platform (GCP)
Multi-cloud environments
Cyber Risk Quantification
Cloud Penetration Testing
Red Teaming
Security Assurance
Cloud Migration
Tenant-to-Tenant Migration
Separation Programs
Integration Programs
Microsoft Certified: Azure Security Engineer Associate (AZ-500)
Microsoft Certified: Cybersecurity Architect Expert (SC-100)
AWS Certified Security – Specialty
AWS Certified Solutions Architect
Certified Cloud Security Professional (CCSP)
Certified Information Systems Security Professional (CISSP)
Certified Cloud Security Knowledge (CCSK)

Location

London

Work Type

Full-time

Experience Level

Senior

About the Company

Headquartered in London, Aon Plc is a leading global professional services firm providing a broad range of risk, retirement, and health solutions.
Our 50,000 colleagues in 120 countries empower results for clients by using proprietary data and analytics to deliver insights that reduce volatility and improve performance.

Equal Opportunity

Aon is an equal opportunities employer.
Aon's recruitment and selection policy ensures the best possible skill mix of colleagues and the highest quality candidates are appointed using objective job-related criteria.