Principal Cyber Security Consultant - Critical National Infrastructure

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 OpportunityThe 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 ResponsibilitiesThis 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 organisationsLeading the successful delivery of complex cyber security projectsDeveloping and mentoring high-performing consulting teamsEnhancing internal methodologies and delivery frameworksSupporting business development through proposal creation and opportunity identificationProviding insight on emerging threats, regulatory trends, and industry best practicesDriving thought leadership and contributing to the organisation’s external profileCandidate ProfileDemonstrable 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 800-82Familiarity with sector-specific compliance and regulatory reporting requirements.Proven leadership and stakeholder engagement skillsAbility to link cyber strategy to broader organisational objectives and risk frameworksComfortable operating across both technical detail and strategic planningWhat’s on OfferCompetitive salary with a 10% annual bonus25 days holiday (rising with length of service)Flexible, hybrid working arrangementsPrivate medical and life insuranceEnhanced parental leave policies