Portfolio Security Lead in Almondsbury

Portfolio Security Lead
Location: Bristol (Hybrid – 2–3 days per week onsite)
Clearance: Minimum SC required (DV preferred)
Employment type: Open to Contract (excellent Outside IR35 rates) or perm, with competitive package on offer
The Role
Frontier Resourcing is looking for a Portfolio Security Lead to join a leading Security Practice in Bristol, to provide strategic security leadership across a complex portfolio of Defence and Government programmes.
This is a senior role suited to a security leader with CISO-level knowledge, skills, and experience , capable of setting security direction, assuring delivery, and engaging credibly with senior stakeholders across government, engineering, and programme delivery functions.
You will define security outcomes, establish robust assurance frameworks, and ensure the delivery of secure, resilient, and accredited systems across the portfolio.
The role can be fulfilled on a contract or permanent basis.
Key Responsibilities
Provide portfolio-level security leadership, ensuring secure-by-design principles are embedded throughout delivery
Work with senior stakeholders to define security outcomes, risk appetite, and governance
Establish and own the security risk management and assurance framework, aligned to legislation, regulation, policy, standards, and best practice
Define required security capabilities, including people, tools, infrastructure, and processes
Lead and oversee implementation to ensure consistency and coherence across the portfolio
Provide technical assurance of cyber security analysis, designs, and assurance evidence
Manage the portfolio security risk register and conduct security maturity assessments
Act as the primary security interface with SROs, SLT, and portfolio engineering and delivery teams
Own and deliver cyber security risk management, assurance, and maturity reporting
Define and communicate Security Strategy, Architecture, and Governance
Develop and own the Portfolio Security Risk Management and Assurance Plan, identifying internal and external dependencies
About You
You will bring:
Extensive experience as a senior security leader with CISO-level capability
A strong background delivering secure, resilient, and accredited systems across Defence and Government programmes
Deep understanding of secure-by-design leadership, assurance, and governance
Proven experience influencing and advising senior stakeholders
Strong technical credibility combined with strategic thinking and pragmatic delivery
The ability to operate confidently across security, engineering, and programme environments
Why Join Us
You’ll be part of a respected security practice, working on nationally significant programmes, with the opportunity to shape portfolio-level security outcomes and influence security strategy at scale.
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