Cloud Security Architect — Lead Enterprise-Scale Security

G3; Greater London; Hybrid; GBP 100,000 - 150,000; Full time

Benefits offered by this job

Private medical insurance

Life insurance

25 days holiday per year

Cycle to Work Scheme

Employer pension 5%

Job summary

G3 is seeking a Principal Cloud Security Engineer to lead the growth of its cloud security practice. This role blends technical excellence with strategic advisory across AWS, Azure, and Google Cloud, influencing client engagements and future directions of the practice.

The ideal candidate has deep cloud security expertise, strong consulting skills, and a track record delivering complex programmes in large enterprises. London-based with flexible hybrid work options.

Qualifications

• 10+ years' experience in cloud security or related disciplines.
• Proven track record delivering complex cloud security programmes within enterprise environments.
• Strong expertise across cloud platforms, identity and access management, network security, data protection, and security operations.
• Up to date experience designing and implementing secure cloud architectures across AWS and Microsoft 365.
• Deep understanding of modern security frameworks and architectures, including Zero Trust principles.

Responsibilities

• Design and deliver secure, resilient, and scalable architecture designs across AWS, Azure, and Google Cloud Platform environments.
• Advise on enterprise-scale cloud transformation, migration, and modernisation programmes, supporting across strategy through to implementation.
• Help clients establish and mature DevSecOps capabilities, embedding security into CI/CD pipelines, Infrastructure as Code, and cloud-native engineering practices.
• Drive cloud security governance, architecture assurance, security remediation, and control optimisation initiatives.
• Conduct security architecture reviews, threat modelling exercises, risk assessments, and cloud security maturity assessments.

Skills

Cloud security

Identity and access management

Network security

Data protection

Security operations

Education

CISSP

CCSP

AWS Security Specialty

Microsoft Cybersecurity Architect Expert

Google Professional Cloud Security Engineer

Tools

AWS

Azure

Google Cloud Platform

Microsoft 365

Job description

G3 is seeking a Principal Cloud Security Engineer to lead the growth of its cloud security practice. This role blends technical excellence with strategic advisory across AWS, Azure, and Google Cloud, influencing client engagements and future directions of the practice.

The ideal candidate has deep cloud security expertise, strong consulting skills, and a track record delivering complex programmes in large enterprises. London-based with flexible hybrid work options.