Principal Cyber Security OT Consultant

Principal Technical Cyber Security Consultant

Location: Corsham, England, United Kingdom

Mid-Senior level

Full-time

Information Technology

Leading the edge of transformation. You might know us for the great work we do across our wide variety of projects. We’re proud to say it’s thanks to our people’s diversity of thought, expertise and knowledge. And when you join us, you’ll be a part of a genuinely collaborative environment, where everyone’s voice is valued and treated equally. We deliver technically questioning and time‑critical projects across multiple sectors, including Aerospace, Defence, Critical National Infrastructure (CNI).

Due to continued growth, we have opportunities in our Governance & Risk & Compliance (GRC), Security Architecture, Threat & Vulnerability, and Operational Technology (OT) teams. Our role as a trusted adviser allows us to offer rewarding careers to those looking to enhance their skills and experience in dynamic environments.

• Lead OT Cybersecurity Programmes:
  Provide strategic leadership and oversight for multiple complex OT cyber security projects. Ensure that each engagement aligns with the client’s business objectives and risk appetite, while delivering solutions that protect mission‑critical systems and maximise operational resilience. Act as the engagement lead, managing client relationships and guiding internal teams to deliver high‑quality results on time.
• Security Architecture & Innovation:
  Leverage deep technical expertise to design and govern secure OT system architectures in industrial environments. Apply creative thinking to implement advanced security controls (for example, robust network segmentation and hardened ICs/SCADA systems) that safeguard operational integrity. Continuously seek innovative approaches to address complex and non‑routine security challenges in OT contexts.
• Governance &
  
  Risk Management:
  
  Establish robust cyber security governance frameworks tailored to OT environments. Spearhead comprehensive security risk assessments and gap analyses using industry frameworks such as NIST CSF and IEC 62443. Based on these assessments, identify the most cost‑effective security controls in line with the client’s risk appetite, balancing risk reduction with uptime and safety. Oversee the implementation of these controls to ensure risks are managed and regulatory requirements are met.
• Policy Development & Compliance:
  Develop and enforce enterprise security policies and procedures that meet corporate and regulatory requirements while reflecting normal practices in OT settings. Ensure all policies and solutions are aligned with relevant standards and regulations – for example, the Network and Information Systems (NIS) Regulations and HSE OG-0086 for critical infrastructures. Provide senior-level guidance to help clients remain compliant with evolving laws and industry standards.
• Client Engagement & Stakeholder Management:
  Build and maintain strong working relationships with clients, including senior executives and operational stakeholders. Act as a trusted adviser, capable of articulating and pitching cyber security advice in business terms as well as technical terms. Manage stakeholder expectations proactively and ensure high customer satisfaction. Help clients navigate cyber security decisions and reinforce Atkins
  
  Réalis’ reputation for delivering value.
• Project & Team Leadership:
  Oversee multiple project teams and mentor junior consultants and engineers to foster their development. Coordinate multi‑disciplinary efforts in a matrix organisation, ensuring projects are delivered on schedule and within scope. Provide clear direction and support to team members and intervene decisively to resolve any issues or escalations. You are responsible for the overall quality of our OT cyber security services on your projects.
• Thought Leadership & Business Growth:
  Serve as a thought leader in OT cyber security both within Atkins
  
  Réalis and in the wider industry. Stay abreast of emerging OT threats, technologies, and best practices, and share these insights with colleagues and clients. Contribute to business development…