Senior Cyber Security Consultant

Oscar Technology
Portsmouth, United Kingdom
Last month
£60,000 – £70,000 pa
Applications closed

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Salary

£60,000 – £70,000 pa

Job Type
Permanent
Work Location
Hybrid
Seniority
Senior
Education
Degree
Security Clearance
Required
Posted
26 May 2026 (Last month)

Benefits

Company pension Private medical Gym WFH

Senior Cyber Security Consultant | £60-70k | Portsmouth, Hybrid (2 days)

Are you a technically strong cyber security professional ready to step into a senior role where you'll lead engagements, shape client strategy, and help grow a team around you?

We're partnering with a well-regarded cyber security consultancy that punches above its size. They work with clients across a range of demanding sectors and are looking for a Senior Consultant who wants genuine ownership of their work, not just a seat at the table.

Salary:£

Package:Company pension, private medical, gym, WFH

Working Structure:Hybrid, 2 days onsite (client visits)

Security Clearance:Active or eligible for SC clearance

The Role:

You'll be the senior point of contact across a portfolio of client engagements, combining hands-on technical delivery with strategic advisory work. One day you might be presenting a risk-based recommendation to a board-level stakeholder; the next you'll be knee-deep in a security maturity review or threat assessment. You'll also play a key part in developing the consultants around you and identifying opportunities to grow the business.

What You'll Be Doing:

  • Acting as the primary client contact across key accounts, managing expectations, building trust and developing long-term relationships
  • Owning the quality of engagement outputs - risk assessments, maturity reviews, strategic recommendations and client-ready reports
  • Designing security improvement plans that are proportionate, practical and tailored to each client's specific context
  • Running threat assessments, client interviews and on-site visits as part of structured engagement delivery
  • Mentoring and developing junior and mid-level consultants, taking an active interest in their growth and output quality
  • Applying security frameworks and standards consistently to drive reliable, credible delivery
  • Spotting and developing new business opportunities, contributing to proposals and helping shape the consultancy's commercial direction
  • Keeping risk management activity sharp across all engagements, making sure nothing important falls through the cracks
  • Translating technical complexity into clear, confident guidance that resonates with non-technical decision-makers

What You'll Need:

  • A strong commercial background in cyber security consultancy or professional services, with experience across sectors such as financial services, energy, telecoms or insurance
  • Technical depth across core domains including networks, infrastructure, cloud and application security
  • Hands-on experience applying risk management frameworks in live, complex environments
  • A track record of managing client relationships at a senior level, including navigating difficult conversations and handling escalations
  • Experience leading and developing small teams, with genuine investment in others' performance and progression
  • The ability to produce polished, high-impact written deliverables under pressure
  • Eligibility to obtain SC clearance
  • Willingness to travel to client sites in the Portsmouth area at least twice a week

Desired:

  • Relevant certifications including CISSP, CISM, CRISC, ISO 27001 Lead Implementer or Auditor, CCSP, CySA+, NCSC CCP, or GIAC

If this sounds like you - get in touch or apply now for a confidential conversation.

Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy.

To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

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