Security Architect

£75,000 GBP

Hybrid WORKING

Location: Central London, Greater London - United Kingdom Type: Permanent

An opportunity exists for an experienced Security Architect to join a growing, high-impact team delivering technology-centric transformation programmes across complex and sensitive enterprise environments. This role is ideal for a security professional who thrives on innovation, collaboration, and designing robust security solutions for both traditional IT and operational technology (OT) systems.

The Role

The Security Architect will work closely with technical and solution architects to define and implement secure architectures for high-profile enterprise solutions. This includes validating security controls, recommending improvements, and ensuring compliance across systems using industry-standard frameworks. The role requires collaboration with information assurance and penetration testing teams, delivering security solutions in agile, innovative, and team-focused environments.

Key Responsibilities

• Designing and implementing security architectures across enterprise IT and operational technology systems
• Collaborating with technical teams to integrate security into solution design and delivery
• Conducting threat modelling to identify vulnerabilities and define security requirements
• Managing security requirements throughout the system delivery and operational lifecycle
• Providing specialist security advice on:
  • Risk-based and threat-based mitigation strategies
  • Security frameworks such as NIST, ISO, CIS
  • Authentication, authorisation, and protective monitoring best practices
• Developing strong working relationships with stakeholders, peers and teams
• Communicating complex technical concepts clearly to non-technical audiences
• Preparing written guidance, reports, and delivering impactful presentations
• Applying critical thinking and problem-solving skills in information technology

About the Candidate

The ideal candidate will have strong technical expertise in at least one of the following areas:

• IP networking and operational technology (OT)
• On-premises architecture and virtualisation
• Cloud platforms and containerisation
• Databases and large language models (LLMs)
• Mobile technologies and application security

Additional qualities include:

• Demonstrated experience in threat modelling and security requirements management
• Ability to provide authoritative advice on security risks, controls and mitigation
• Strong written and verbal communication skills for both technical and non-technical audiences
• Experience collaborating with multidisciplinary teams in complex IT or OT environments

Why This Role

This position offers the opportunity to work on highly sensitive, high-impact transformation programmes, shaping secure, future-proof architectures for enterprise and operational technology systems. It is well-suited to innovative, collaborative security professionals seeking to make a tangible impact in a complex and evolving technology landscape.