Principal Cyber Security Consultant - Critical National Infrastructure

Experis; London; Hybrid; GBP 80,000 - 120,000; Full time

Job summary

A leading consultancy in cyber security seeks a Principal Consultant to deliver high-impact engagements within Critical National Infrastructure. The ideal candidate will have a strong track record in consultancy and will be responsible for shaping client programs, mentoring teams, and providing strategic insights.

Benefits

25 days holiday

Flexible working arrangements

Private medical and life insurance

Enhanced parental leave policies

Qualifications

• Experience in consultancy leading major cyber security projects.
• Strong understanding of security challenges in OT environments.
• Ability to connect cyber strategy to organizational objectives.

Responsibilities

• Lead the delivery of complex cyber security projects.
• Develop and mentor high-performing consulting teams.
• Enhance internal methodologies and support business development.

Skills

Stakeholder engagement

Cyber security expertise

Leadership

Job description

Principal Cyber Security Consultant - Critical National Infrastructure

Principal Cyber Security Consultant - Critical National Infrastructure

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This range is provided by Experis. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

Direct message the job poster from Experis

A fast-growing cyber security consultancy is dedicated to helping organisations remain secure, resilient, and compliant in an increasingly digital world. With a leadership team that sees security and data protection as enablers of progress, the company is built on collaboration, integrity, and a strong focus on delivering meaningful outcomes for clients.

The Opportunity

The organisation is seeking a Principal Consultant to lead its work across the Critical National Infrastructure (CNI) space. This is a senior role focused on delivering high-impact cyber security engagements while driving growth within the public sector domain.

Applicants must be eligible for SC-level security clearance due to the nature of the work.

Key Responsibilities

This position suits an experienced consultant with a strong track record in the CNI or public sector space. The Principal Consultant will play a pivotal role in shaping client programmes, leading delivery teams, and influencing the strategic direction of the consulting function.

• Building and maintaining relationships with senior stakeholders (CISOs, CIOs, CTOs) across public sector and CNI organisations
• Leading the successful delivery of complex cyber security projects
• Developing and mentoring high-performing consulting teams
• Enhancing internal methodologies and delivery frameworks
• Supporting business development through proposal creation and opportunity identification
• Providing insight on emerging threats, regulatory trends, and industry best practices
• Driving thought leadership and contributing to the organisation’s external profile

Candidate Profile

• Demonstrable experience within a Consultancy environment leading major cyber or transformation programmes within regulated CNI sectors (e.g. utilities, energy, transport)
• Strong understanding of OT environments and their unique security challenges, including legacy systems and frameworks like CAF, IEC 62443, or NIST 800-82
• Familiarity with sector-specific compliance and regulatory reporting requirements.
• Proven leadership and stakeholder engagement skills
• Ability to link cyber strategy to broader organisational objectives and risk frameworks
• Comfortable operating across both technical detail and strategic planning

What’s on Offer

• Competitive salary with a 10% annual bonus
• 25 days holiday (rising with length of service)
• Flexible, hybrid working arrangements
• Private medical and life insurance
• Enhanced parental leave policies

Seniority level

• Seniority level

  Executive

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  IT Services and IT Consulting, Business Consulting and Services, and Computer and Network Security

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