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Public Sector Resourcing

Senior Security Architect

Hybrid

Salisbury, United kingdom

Senior

Freelance

06-11-2025

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Skills

Communication Cloud Security Quality Assurance Research Architecture Security Architecture Business Architecture

Job Specifications

On behalf of the MOD, we are looking for a Senior Security Architect (Inside IR35) for a 12 Month hybrid contract based 1 day per week in Salisbury or Portsmouth.

Note: SC Clearance is an essential requirement for this role, as a minimum you must be willing & eligible to undergo checks. Please note, due to the exceptional requirements of this position, (and speed at which we require a postholder in situ), preference may be given to candidates who meet all of the essential criteria and hold active security clearance

A senior security architect undertakes complex work of a high risk level, often working on several projects. A lead security architect will examine the risk towards Dstl from within projects and issue statement of requirements to ensure that any risk is minimised. To ensure that projects adhere to our internal assurance and governance policy and procedure.

You will:
* interact with senior stakeholders across departments
* reach and influence a wide range of people across larger teams and communities
* research and apply innovative security architecture solutions to new or existing problems and be able to justify and communicate design decisions
* develop vision, principles and strategy for security architects for one project or technology
* work out subtle security needs
* understand the impact of decisions, balancing requirements and deciding between approaches
* produce particular patterns and support quality assurance
* be the point of escalation for architects in lower grade roles
* lead the technical design of systems and services

Skills

Analysis
* monitor the analysis of a technical solution and ensure analysis is reused for similar problem sets
* review solutions and identify areas for change
* drive the collection of information that is used and analysed
* feed back on policy and requirements

Communication (security architect)
* demonstrate a deep understanding of security concepts and can apply them to a technical level
* effectively translate and accurately communicate security and risk implications to technical and non-technical stakeholders
* successfully respond to challenges
* manage stakeholder expectations and be flexible, adapting to stakeholder reactions to reach consensus

Designing secure systems
* design and review system architectures through the development of patterns and principles

Enabling and informing risk-based decisions
* work with higher impact or more complex risks, advising on the impact and whether it's within risk tolerance
* apply different risk methodologies in proportion to the risk

Research and innovation
* contribute to and inform developments on security properties in technology
* identify new technologies and design the use of these in the business context across the organisation
* engage with the broader security community

Security technology
* explain complex system architectures
* identify and explain how easy or difficult it will be to exploit vulnerabilities
* lead and influence security technology in the security industry

Understanding security implications of transformation
* interpret and apply understanding across a complex area
* start influencing policy and process, business architecture, and legal and political implications

Qualifications
* TOGAF (The Open Group Architecture Framework)
* ISEB (Information Systems Examination Board) And one of the following
* ITIL (Information Technology Infrastructure Library) Certification
* IT4IT Certification
* COBIT (Control Objectives for Information and Related Technologies) Certification
* CISSP - Certified Information Systems Security Professional
* CISM - Certified Information Security Manager
* CCSP - Certified Cloud Security Professional
* CEH - Certified Ethical Hacker
* SABSA - For Security Architecture specifically.

Please be aware that this role can only be worked within the UK and not Overseas.

Disability Confident

As a member of the Disability Confident Scheme, the MOD guarantees to interview all candidates who have a disability and who meet all the essential criteria for the vacancy. In cases where we have a high volume of candidates who have a disability who meet all the essential criteria, we will interview the best candidates from within that group.

This scheme encourages candidates with a disability and/or neurodivergence to apply. In exceptional circumstances, we may also need to apply the desirable criteria in our shortlisting process which may include holding active security clearance.

Armed Forces Covenant

The MOD guarantees to interview veterans or spouses / partners of military personnel who meet all the essential criteria for the vacancy. In cases where we have a high volume of ex-military candidates / military spouses or partners, who meet all of the essential criteria, we will interview the best candidates from within that group. In exceptional circumstances, we may also need to apply the desirable criteria in our shortlisting process which may include holding ac

About the Company

Public Sector Resourcing (PSR) is a government-let framework, managed by AMS on behalf of Crown Commercial Services (CCS) for the provision of Contingent Labour, Statement of Work and Recruit, Train, Deploy services. PSR is the largest Managed Service Programme across Europe with circa 17,000 contract workers and is supported by over 500 employees split across AMS and our key partner Brook Street (part of the Manpower group). We are currently recruiting for various Government departments so if you are interested in worki... Know more