Principal Security Engineer in London, Greater London

Principal Security Engineer

Location: Manchester (preferred) or London, UK
Employment Type: Permanent, Full-time
Sector: Data Centres / Mission-Critical Infrastructure
Salary: £60,000–£75,000 Manchester | Up to £85,000 London (indicative)

About the Role

An international engineering design consultancy is seeking a Principal Security Engineer to support major data centre and mission-critical infrastructure projects. This is a hands-on technical leadership role, combining physical and electronic security design, client engagement, multidisciplinary coordination and team development.

The successful candidate will help strengthen the security engineering team, mentor engineers and contribute to the growth of the business, with potential progression to Associate Director.

Key Responsibilities

• Lead physical and electronic security design from concept through detailed design.
• Design and review CCTV, access control, intruder detection, alarm and perimeter security systems.
• Prepare and review technical drawings, specifications and design documentation.
• Coordinate security systems with architectural, MEP, ICT and other engineering disciplines.
• Use relevant design and coordination tools, including AutoCAD, Revit, Navisworks and BIM platforms.
• Take technical ownership of design quality, technical risks and project deliverables.
• Manage design activities across multiple projects and attend client meetings and design reviews.
• Build client relationships, provide technical guidance and resolve complex design issues.
• Mentor engineers and contribute to technical standards and team development.

Essential Requirements

• Significant experience in physical and electronic security systems design.
• Engineering design consultancy or similar technical design experience.
• Experience delivering security designs for major construction or complex infrastructure projects.
• Strong knowledge of CCTV, access control, intruder detection and associated security systems.
• Experience reviewing technical designs and coordinating multidisciplinary packages.
• Proficiency with AutoCAD, Revit, Navisworks, BIM or similar tools.
• Proven technical leadership, mentoring and client-facing skills.
• Ability to manage multiple projects and take responsibility for technical deliverables.

Desirable Experience

• Data centre or mission-critical infrastructure projects.
• Large commercial, industrial, healthcare, pharmaceutical or transport developments.
• Experience improving design standards and supporting team growth.