Senior Cyber Security Consultant

Company: Addition
Apply for the Senior Cyber Security Consultant
Location: London
Job Description:

Join a growing cyber security consultancy that helps organisations strengthen their security posture, manage risk, and stay ahead of an ever-changing threat landscape. This is an opportunity to work with a broad range of clients, lead meaningful engagements, and play a key role in the continued growth of a collaborative consulting team.

Role Overview

Location: London

Package: Competitive salary + private healthcare, life insurance, healthcare cash plan, pension, flexible working and ongoing professional development

Industry: Cyber Security Consulting

What You’ll Be Doing

  • Deliver cyber security consultancy projects for clients across a variety of sectors.
  • Lead security maturity assessments, gap analyses and cyber risk reviews.
  • Advise clients on governance, risk, compliance and security best practice.
  • Develop security strategies, roadmaps and practical improvement plans.
  • Support organisations with compliance against recognised frameworks including ISO 27001, Cyber Essentials, NIST CSF, CIS Controls and GDPR.
  • Review and develop security policies, standards and governance documentation.
  • Facilitate workshops, stakeholder meetings and executive-level presentations.
  • Assess infrastructure, cloud environments and business processes from a security perspective.
  • Provide guidance on secure architecture, vulnerability management and cyber resilience.
  • Review third‑party supplier security risks and recommend improvements.
  • Support pre‑sales activities, proposals and client presentations.
  • Build lasting client relationships and identify opportunities to deliver additional value.
  • Mentor junior consultants and contribute to the development of consulting services and best practices.

Main Skills Needed

  • Proven experience in cyber security consulting, governance, risk or advisory roles.
  • Strong understanding of information security frameworks including ISO 27001, NIST CSF, CIS Controls and Cyber Essentials.
  • Experience delivering client‑facing security consultancy projects from discovery through to delivery.
  • Knowledge of risk assessments, security maturity reviews and compliance programmes.
  • Excellent communication skills with the ability to engage both technical and non‑technical stakeholders.
  • Strong report writing, presentation and stakeholder management experience.
  • Well‑organised with the ability to manage multiple projects effectively.
  • Experience within a consultancy, managed services or professional services environment is advantageous.
  • Knowledge of cloud security, Microsoft security technologies, security architecture or incident response would be beneficial.
  • Relevant certifications such as CISSP, CISM, CRISC, ISO 27001 Lead Implementer/Auditor, Microsoft Security certifications, CREST or GIAC are desirable.

What’s in It for You

  • Competitive salary with performance‑related incentives.
  • Private healthcare, life insurance and a healthcare cash plan.
  • Flexible working to support a healthy work‑life balance.
  • Structured learning and development with clear career progression.
  • Access to ongoing training, certifications and professional development pathways.
  • A collaborative and supportive environment where your expertise is recognised and your ideas can make a real impact.
  • The opportunity to work on varied, high‑profile client projects while helping shape a growing cyber security practice.

Careers move fast. Let’s make sure yours is heading the right way.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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Posted: July 7th, 2026