Principal Cyber Security Consultant - Critical Infrastructure

ZipRecruiter; London; Hybrid; GBP 70,000 - 100,000; Full time

Job summary

A rapidly expanding cyber security consultancy seeks a Principal Consultant to guide initiatives within Critical Infrastructure. The role emphasizes leading complex projects, engaging with senior stakeholders, and enhancing methodologies to bolster consulting strategies in the public sector. Candidates should demonstrate extensive consultancy experience in regulated environments, with a strong grasp of security challenges and regulations.

Benefits

Competitive salary with a 10% annual bonus

25 days holiday (increasing with service)

Flexible, hybrid working arrangements

Private medical and life insurance

Enhanced parental leave policies

Qualifications

• Demonstrable experience within a consultancy environment leading major cyber or transformation programmes.
• Strong understanding of OT environments and security challenges.
• Proven leadership and ability to link cyber strategy to organisational objectives.

Responsibilities

• Building and maintaining relationships with senior stakeholders.
• Leading delivery of complex cyber security projects.
• Developing and mentoring high-performing consulting teams.

Skills

Stakeholder engagement

Leadership

Cyber strategy alignment

Consultancy experience

Job description

Job Description

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 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.

Key duties include:

• 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