Senior Security Consultant

🖋️Senior Security Consultant + Principal Security Consultant (different levels available) 📍Bristol, Manchester or London - 2 days per week onsite approx. but UK wide travel will be expected as they are a consultancy ⌚Permanent 37.5 hours per week 💷£50,000 - £65,000 for Senior/£70,000 - £85,000 + car for Principal Our client is looking for a Senior Security Consultant to deliver across Critical National Infrastructure (CNI) and Operational Technology (OT) environments. The ideal candidate will come from industry or a similar consultancy environment, having lead risk assessments, security governance, and client delivery across projects within an OT environment, ideally CNI or Defence. Key Responsibilities:

• Lead and deliver risk assessments, security governance, and tailored security controls for clients across Defence, CNI, and OT environments.
• Develop, review, and maintain security policies, procedures, and compliance artefacts.
• Manage multiple concurrent projects, balancing client and business priorities to tight deadlines.
• Mentor and support junior consultants, driving continuous improvement across the security team.
• Contribute to business development, proposals, and building strong client relationships.
• Communicate cyber security risks and recommendations clearly to technical and non-technical stakeholders.
• Apply creative, innovative thinking to solve complex and non-routine security challenges. Key Skills:
• Experience delivering technical cyber security consultancy in complex, multi-disciplined environments.
• Strong background in information assurance, ISMS development, risk assessments, and security controls.
• Experience delivering cyber security consultancy in OT or ICS environments, such as energy or utilities.
• Familiarity with OT cyber security standards including IEC 62443, NIST CSF, or NIS Regulations.
• Strong understanding of Secure by Design principles and methodology.
• Experience working with MoD security policies such as JSP440 and JSP604 would be of benefit.
• Excellent communication skills with the ability to engage stakeholders at all levels.
• Relevant professional certifications such as CISSP, CISM, CCSP, CISMP, or Chartered Cyber Security Our clients Offer a range of benefits for permanent workers. As well as an excellent salary you will receive the following:
• Pension up to 10% client contribution.
• Life assurance, income protection insurance and critical illness cover.
• Option to buy & sell holiday.
• Dental, health, medical, travel and gadget insurance.
• 24/7 Digital GP. Part-time opportunities/flexible working is available to suit individual needs. RECOMMEND A FRIEND: If you have professional friends/colleagues who would be interested in one of our roles and our excellent levels of service too, we'd like to recognise your recommendations with a 'thank you' of our own. For every friend you refer who then starts a role through Datasource either Contract or Permanent, we will send you £200 of Love to Shop Gift Vouchers & gift your friend £100 in Love to Shop Gift Vouchers as well! (c) Copyright Datasource Computer Employment Limited 2026.