OT Security Consultant in Ruislip

OT Cyber Security Architect
Salary: Up to £100,000 (depending on experience)
Location: UK – Hybrid working
Who you'll be working with
You'll work alongside experienced cyber security consultants, architects and engineers, supporting major organisations in strengthening the security and resilience of their critical infrastructure and operational environments.
Working across sectors including energy, utilities, transport, manufacturing and defence, you'll help clients navigate complex security challenges, shape their OT security strategies and deliver practical solutions.
What you'll be doing
Leading OT cyber security architecture engagements, working closely with clients to understand their challenges and define effective security strategies.
Advising senior stakeholders, including CISOs and operational leaders, on OT security risks, resilience and investment priorities.
Designing secure architectures across complex OT environments, including ICS, SCADA and industrial networks.
Translating cyber risk assessments into target-state architectures, security controls and practical implementation roadmaps.
Developing secure IT/OT integration approaches, including network segmentation, access controls, remote access and monitoring.
Leading client projects covering OT security transformation, vulnerability management and operational resilience.
Supporting the wider cyber security practice through technical expertise, knowledge sharing and the development of client solutions.
What we're looking for
Strong experience in OT Cyber Security Architecture, ideally within a consulting or client-facing environment.
A solid understanding of ICS, SCADA and OT network environments.
Experience working across critical infrastructure, energy, utilities, manufacturing, transport or similar sectors.
Knowledge of security frameworks including IEC 62443, NIST CSF, NCSC CAF, ISO 27001 and NIS/NIS2.
Experience developing security strategies, architecture designs and implementation roadmaps.
Strong stakeholder management skills, with the ability to engage senior clients and translate complex technical risks into business-focused recommendations.
A consultative approach, with the ability to lead client conversations, solve complex problems and deliver tangible outcomes.
Experience with OT security technologies such as Nozomi, Claroty, Dragos or Microsoft Defender for IoT would be beneficial.
What's in it for you?
The opportunity to advise major clients and influence OT security strategies across multiple industries.
Exposure to complex, high-impact consulting projects.
Hybrid working, with a minimum of two days per week in the office or on client site.
Dedicated learning and development budget, including technical training and certifications.
Private healthcare, generous pension and annual performance bonus.