Security Architect

Based at client locations, working remotely, or based in our Godalming or Milton Keynes offices.

Up to £75K plus excellent company benefits.

Location:

Based at client locations, working remotely, or based in our Godalming or Milton Keynes offices.

Start Date:

ASAP. Reference: PR/010824_. Posted 26 March '26. Enquiries:  

Salary £75k, plus excellent company benefits.

Triad Group Plc is an award-winning digital, data, and solutions consultancy with over 35 years’ experience primarily serving the UK public sector and central government. We deliver high-quality solutions that make a real difference to users, citizens and consumers.

At Triad, collaboration thrives, knowledge is shared, and every voice matters. Our close-knit, supportive culture ensures you’re valued from day one. Whether working with cutting-edge tech or shaping strategy for national-scale projects, you’ll be trusted, challenged, and empowered to grow.

We nurture learning through communities of practice and encourage creativity, autonomy, and innovation. If you’re passionate about solving meaningful problems with smart and passionate people, Triad could be the place for you.

• Glassdoor score of 4.7
• 96% of our staff would recommend Triad to a friend
• 100% CEO approval

See for yourself some of the work that makes us all so proud:

• Helping law enforcement with secure intelligence systems that keep the UK safe
• Supporting the UK’s national meteorological service in leveraging supercomputers for next-level weather forecasting
• Assisting the British government department that is responsible for the safety of consumer products, with systems to track unsafe products
• Powering systems that help the government monitor and reduce greenhouse gas emissions from commercial transport

Triad is seeking a Security Architect; you will play a critical role in designing, assuring, and delivering secure solutions across our client engagements. You will champion Secure by Design principles and lead threat modelling activities to ensure risks are identified and mitigated early in the lifecycle. Working closely with stakeholders, you will define security architectures, ensure compliance with relevant standards, and embed security best practices throughout delivery.

• Security Architecture Design – Develop and maintain secure architecture patterns, ensuring alignment with business and technical requirements
• Secure by Design – Embed security into every stage of the solution lifecycle, ensuring systems are designed with security controls from the outset rather than retrofitted.
• Threat Modelling – Lead and facilitate threat modelling exercises (e.g. STRIDE), identifying vulnerabilities and defining mitigations early in delivery
• Risk Assessment – Identify, assess, and mitigate security risks across systems, applications, and infrastructure
• Security Assurance – Provide governance and assurance across projects, ensuring compliance with security standards and frameworks
• Stakeholder Engagement – Collaborate with clients, delivery teams, and senior stakeholders to embed security into solution design
• Standards & Compliance – Ensure adherence to industry standards such as ISO 27001, NIST, and government security policies

• Experience working as a Security Architect or in a senior security role within complex environments
• Strong practical experience applying Secure by Design principles in modern architectures
• Hands‑on experience conducting threat modelling (e.g. STRIDE, attack trees) and risk analysis
• Strong understanding of security frameworks and best practice such as ISO 27001, NIST, CIS, OWASP, NCSC guidance
• Experience working in the UK Public Sector and associated security standards and guidance including Gov Assure/NCSC CAF, HMG Security Policy Framework.
• Knowledge of cloud security principles across platforms such as AWS, Azure, or GCP
• Experience with identity and access management, encryption, network security, and secure application design including security tooling
• Ability to communicate complex security concepts to both technical and non‑technical stakeholders
• Experience supporting agile delivery teams