Senior Technical Security Consultant

Salary: £50,000 - 75,000 per year

Requirements:

• Significant experience in one or more of the following areas: security architecture, security engineering, cloud security, network security, application security, or penetration testing.
• Strong understanding of modern cyber threats, attack techniques, and security risks.
• Experience applying secure-by-design principles across enterprise environments.
• Strong knowledge of cloud, infrastructure, and enterprise security technologies.
• Ability to translate complex technical security concepts into clear, business-focused recommendations.
• Excellent stakeholder management and communication skills.
• Experience reviewing security designs, risk assessments, and security testing outputs.
• Experience working within large, complex enterprise environments is desirable.
• One or more industry certifications would be advantageous, including CISSP, CCSP, SABSA, TOGAF, OSCP/OSWP, CRTO/CRTE, GXPN, CREST CRT/CCT, Microsoft Azure Cybersecurity Architect Expert, AWS Security Specialty, or other recognised security industry certifications.

Responsibilities:

• Act as a senior Security Architect and technical authority across a portfolio of projects and services.
• Lead security architecture reviews and provide expert guidance on secure design principles.
• Assess and advise on cloud, network, infrastructure, and application security controls.
• Review complex technical solutions and ensure they align with security, regulatory, and business requirements.
• Conduct and support threat modelling, risk assessments, and vulnerability assessments.
• Provide technical oversight and recommendations for security testing and penetration testing activities.
• Support vulnerability management activities, helping teams prioritise and remediate security risks.
• Collaborate with architects, engineers, testers, and assurance teams to deliver secure solutions.
• Act as an escalation point for complex technical security challenges.
• Coach and mentor security practitioners, helping to improve the quality and consistency of technical security outputs.
• Promote security best practice and contribute to the development of technical standards across the security community.
• Engage with both senior stakeholders and technical delivery teams to communicate security risks and recommendations effectively.

Technologies:

• AWS
• Architect
• Azure
• Cloud
• Support
• Network
• Security
• TOGAF
• AI
• DevSecOps

More:

We are a leading global professional services company helping leading businesses, governments, and other organisations build their digital core, optimise operations, accelerate revenue growth, and enhance citizen services. We work on innovative projects with colleagues across the UK health, public sector, Defence, and Central Government, using cutting-edge technologies in a thriving team. We offer a competitive salary and package, 30 days vacation per year, private medical insurance, and 3 extra days of leave per year for charitable work of your choice. The role is flexible across the UK with client travel and may require time onsite with our clients and partners. We are an innovation-led global team with approximately 791,000 people serving clients in more than 120 countries, and we value shared success, diverse ways of thinking, learning, growth, and boundaryless opportunities.

last updated 35 week of 2026