Principal Security Architect

Frontier Resourcing LTD; West of England; Hybrid; GBP 110,000 - 150,000; Full time

Benefits offered by this job

Electric vehicle scheme

Flexible hybrid working

Up to 10% discretionary bonus

Additional paid leave for Reservists

Job summary

Frontier Resourcing LTD seeks an experienced Principal Security Architect to lead security architecture engagements for high-profile government and national security programs. You will shape secure designs, advise senior clients, govern architectures, and mentor a team of architects while contributing to bid work and capability development across the practice.

This role offers flexible hybrid working, opportunities to influence technical direction, and recognition for delivery excellence, with

Qualifications

• Strong expertise delivering security architectures across complex programs.
• Proven client engagement and governance experience.
• Industry certifications and chartered status required.

Responsibilities

• Lead security architecture engagements with technical direction and governance.
• Design and review secure architectures translating business needs into controls.
• Advise clients at senior levels and manage risk and design trade-offs.
• Mentor architects and promote high standards across delivery teams.
• Contribute to proposals, bids, and capability development.

Skills

Security architecture leadership

Stakeholder engagement

Governance & assurance

Mentoring others

Education

Chartered through UK Cyber Security Council

CIISec chartered status

IEng or CEng registration

SABSA / TOGAF knowledge

Tools

TOGAF

SABSA

ArchiMate

Job description

We’re looking for an experienced Principal Security Architect to join a growing security consultancy, delivering security solutions for secure environments in National Security/ Government.

This is an opportunity to provide technical leadership across high-profile security architecture engagements, advising clients, shaping secure designs and ensuring solutions align with business objectives, risk appetite and recognised security standards.

You’ll work across strategic enterprise architecture and detailed technical design, supporting clients throughout the system lifecycle while helping develop the wider security architecture capability.

The Role

• Lead security architecture engagements, providing technical direction, governance and assurance.
• Design and review secure architectures, translating business needs and risk requirements into effective technical controls.
• Act as a trusted adviser to clients, engaging with senior stakeholders and design authorities.
• Review architecture deliverables, challenge assumptions and manage risks, dependencies and design trade-offs.
• Mentor and support other architects, promoting high standards and consistent delivery.
• Contribute to client proposals, bids, solution development and business growth.

What We’re Looking For

• Chartered through the UK Cyber Security Council in Secure Systems Architecture.
• An industry-recognised cyber security certification, such as CISSP or CISM.
• Strong experience delivering security architecture across complex systems, programmes or transformation initiatives.
• Excellent client engagement and communication skills, with the ability to explain complex technical concepts to varied audiences.
• Experience providing architectural leadership, assurance and governance.
• Full membership of the Chartered Institute of Information Security (CIISec).
• IEng or CEng registration, BCS chartership or SABSA Chartered Security Architect status.
• Experience with architecture frameworks and modelling approaches such as TOGAF, SABSA and ArchiMate.
• Experience supporting bids, pre‑sales and consultancy business development.

Why Join?

• Work on challenging security projects across diverse sectors.
• Flexible hybrid working, with part‑time and term‑time arrangements considered.
• Clear career progression and investment in professional development.
• Collaborative culture with opportunities to influence technical direction and make a real impact.
• Up to 10% discretionary performance bonus, subject to successful completion of probation.
• Electric vehicle scheme.
• Flexible and hybrid working.
• Additional paid leave for Reservists and Cadet Force Adult Volunteers.