913 Security Architect jobs in the United Kingdom

• Developing and evolving the enterprise network security architecture, ensuring alignment with business objectives and threat landscape.
• Designing and implementing security solutions, including firewalls, Intrusion Detection/Prevention Systems (IDS/IPS), VPNs, and secure access controls.
• Conducting security assessments and vulnerability testing of network infrastructure.
• Developing security policies, standards, and procedures to guide the organization's cybersecurity practices.
• Monitoring network traffic for security breaches and performing incident response activities.
• Collaborating with IT operations teams to ensure the secure configuration and deployment of network devices.
• Evaluating and recommending new security technologies and tools to enhance the overall security posture.
• Providing technical leadership and guidance on network security best practices to IT staff.
• Developing disaster recovery and business continuity plans related to network security.
• Staying current with emerging cybersecurity threats, vulnerabilities, and technologies.

• A Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or a related field. A Master's degree is a plus.
• Minimum of 7 years of experience in network security, with at least 3 years in an architectural role.
• In-depth knowledge of TCP/IP, routing protocols, firewalls, IDS/IPS, VPN technologies, and network access control.
• Hands-on experience with security information and event management (SIEM) systems and security orchestration, automation, and response (SOAR) platforms.
• Familiarity with cloud security principles (AWS, Azure, GCP) and their application to network architecture.
• Relevant security certifications such as CISSP, CCIE Security, or CISM are highly desirable.
• Strong analytical and problem-solving skills, with the ability to think critically and strategically.
• Excellent communication and interpersonal skills, with the ability to explain complex technical concepts to both technical and non-technical audiences.
• Experience with scripting languages (e.g., Python, PowerShell) for automation is beneficial.
• Proven ability to work independently and lead cross-functional teams.

• Design, implement, and manage the network security architecture for the organization.
• Develop and enforce security policies, standards, and procedures.
• Deploy and maintain security technologies such as firewalls, IDS/IPS, VPNs, and SIEM systems.
• Conduct regular security assessments, vulnerability scans, and penetration testing.
• Analyze security threats and incidents, and develop appropriate response and remediation plans.
• Collaborate with network and system administrators to ensure secure network configurations.
• Provide technical guidance and support on network security matters.
• Stay current with the latest security threats, vulnerabilities, and technologies.
• Develop and deliver security awareness training to IT staff.
• Contribute to disaster recovery and business continuity planning from a security perspective.

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• Minimum of 7 years of experience in network security, with a focus on architecture and design.
• In-depth knowledge of network protocols, security principles, and best practices.
• Experience with firewall management, intrusion detection/prevention systems, and VPN technologies.
• Proficiency in security assessment tools and methodologies.
• Strong understanding of common cyber threats and attack vectors.
• Excellent analytical, problem-solving, and decision-making skills.
• Relevant security certifications such as CISSP, CCNA Security, or GIAC are highly desirable.
• Effective communication and interpersonal skills for collaborating with technical and non-technical stakeholders.
• Ability to work effectively in a team-oriented environment and commute to the Milton Keynes, Buckinghamshire, UK office.

• Design and architect secure network solutions, including firewalls, VPNs, IDS/IPS, and other security controls.
• Develop and maintain network security policies, standards, and procedures.
• Conduct security assessments, vulnerability analyses, and penetration testing.
• Identify and mitigate potential security risks and threats to the network infrastructure.
• Collaborate with network and system engineers to implement security best practices.
• Lead the development and deployment of security technologies and solutions.
• Provide technical expertise and guidance on network security matters.
• Develop incident response plans and participate in incident management.
• Stay abreast of the latest cybersecurity threats, trends, and technologies.
• Ensure compliance with relevant security regulations and standards.
• Mentor junior security team members and contribute to knowledge sharing.
• Evaluate and recommend new security tools and technologies.

• Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or a related field.
• Minimum of 7 years of experience in network security, with a focus on architecture and design.
• In-depth knowledge of TCP/IP, routing protocols, and network security technologies (e.g., firewalls, NAC, WAF, SIEM).
• Experience with cloud security (AWS, Azure, GCP) is highly desirable.
• Proficiency in scripting languages (e.g., Python, Bash) for automation.
• Strong understanding of common attack vectors and defence strategies.
• Excellent analytical, problem-solving, and decision-making skills.
• Exceptional communication and interpersonal skills, with the ability to articulate complex security concepts.
• Ability to work independently and effectively in a remote-first environment.
• Relevant certifications such as CISSP, CCIE Security, or GIAC are highly preferred.

Security Architect - Belfast (Hybrid, Outside IR35) - £500 per day - 3 Months

We are seeking an experienced Security Architect to design, implement, and maintain secure architectures across enterprise systems and networks. This role requires deep technical expertise in cybersecurity design principles, risk management, and architectural frameworks, combined with strong collaboration and advisory skills to align security strategy with business and technical objectives.

Key Responsibilities:

• Design and maintain secure architecture for enterprise systems, applications, and networks, ensuring alignment with business goals and compliance requirements.
• Develop and implement security policies, standards, and reference architectures following best practices and regulatory frameworks.
• Conduct risk assessments and threat modelling to identify vulnerabilities and define effective mitigation strategies.
• Advise on the secure integration of new technologies, including cloud services, IAM solutions, and network security enhancements.
• Provide architectural governance and expert guidance during major transformation or technology adoption initiatives.

What You Will Ideally Bring:

• Deep knowledge of network, application, and infrastructure security design.
• Familiarity with architectural and security frameworks such as TOGAF, SABSA, and NIST.
• Hands-on experience with firewalls, IDS/IPS, IAM, encryption, and secure design principles.
• Professional certifications such as CISSP, CISM, or SABSA.
• Typically 5-10 years of experience in cybersecurity or enterprise architecture roles.
• Strong communication, stakeholder management, and problem-solving skills with the ability to work cross-functionally.

Contract Details:

• Duration: 3 months (with potential for extension)
• Day Rate: Up to £500 per day (Outside IR35)
• Location: Belfast (Hybrid - 3 days onsite/2 days remote)
• Start Date: ASAP
• Travel: Occasional travel to Belfast as required

Senior Security Architect

Location: Remote within the UK

Salary: up to £120,000 (depending on experience) + bonus

We are seeking an experienced Senior Security Architect to lead the secure design and delivery of complex, large-scale systems across diverse sectors, including government, healthcare, and financial services.

This role combines deep technical expertise with consulting capability , requiring someone who can engage confidently with senior stakeholders, shape secure solutions, and guide teams in embedding best practices throughout the software development lifecycle.

Key Requirements

• Proven application architecture experience, designing secure, scalable solutions.
• Demonstrable consulting experience , with the ability to influence and advise stakeholders at all levels.
• Expertise in secure cloud service design and architecture, aligned to industry standards and best practices.
• Strong ability to identify and mitigate security risks in existing and new systems.
• Knowledge of key security standards and regulations (e.g. NCSC, ISO, SoC, NIST, PCI, GDPR).
• Background in software development and/or infrastructure architecture.
• Hands-on experience testing the security of software and infrastructure.
• Knowledge of network security, web application security (e.g. OWASP), and cryptographic controls.
• Leadership experience, including mentoring, coaching, and managing technical teams.
• Excellent communication skills, able to convey complex security concepts clearly to both technical and non-technical audiences.

Desirable Experience

• Identity management and authentication/authorisation products and patterns.
• End-to-end security involvement (governance, risk, compliance, operational security, supply chain, user management).
• Penetration testing qualifications (e.g. OSCP, CREST, TIGER, or equivalent).
• Active knowledge sharing, internally or externally.

If you are a proven security leader with strong architecture and consulting experience, apply today.

Security Architect

Newport, South Wales (4 days onsite / Fridays remote)

6 month contract (strong potential for extension)

Rate: Negotiable (DOE)

• ACTIVE SC Clearance is required

About the Role

A major defence organisation is seeking a Security Architect (Cyber) to play a key role in shaping, developing, and maintaining secure system architectures across mission-critical MOD programmes.

You’ll ensure all solutions align with defence and national security standards, working closely with internal engineering teams, MOD stakeholders, and security authorities to uphold the highest standards of cyber assurance.

Key Responsibilities

• Design and develop secure architectures for MOD platforms, systems, and networks.
• Align solutions with frameworks such as NIST SP 800-53, ISO 27001, JSP 440, DEF STAN 05-138, and NCSC guidance.
• Produce and maintain documentation: Security Architecture Documents, Risk Assessments, and Security Management Plans.
• Lead and support design reviews and assurance gates.
• Liaise with MOD, NCSC, and Information Assurance teams to support accreditation and assurance.
• Collaborate with engineering teams to embed security from concept through to delivery.
• Keep up to date with evolving threats and recommend effective mitigations.

Essential Skills & Experience

• Minimum 6 years’ experience in cyber security architecture within Defence, Aerospace, or Critical National Infrastructure.
• Strong understanding of MOD security frameworks (JSP 440, JSP 604, DEF STANs).
• Proven background in Secure by Design and security compliance (ISO 27001, CE/CE+).
• Experience producing security artefacts for MOD assurance.
• Working knowledge of risk management frameworks (HMG IS1/IS2, NIST RMF).
• Excellent communication skills – confident engaging with technical and non-technical stakeholders.
• Must hold ACTIVE SC Clearance – applicants without current clearance cannot be considered.

Preferred Certifications

• Certified Information Systems Security Professional (CISSP )
• Certified Information Security Manager (CISM )
• SABSA, TOGAF, or equivalent architecture certifications

If you are interested and keen to find out more, please apply with your updated CV and reach out to Tom Johnson at Certain Advantage - Ref: 79356

Security Architect

6 month contract

Based in Newport

Offering £85ph Inside IR35

Do you have experience in Secure by Design?

Do you have knowledge of MOD security requirements?

Do you want to work with an industry-leading company?

If your answer to these is yes, then this could be the role for you!

As the Security Architect, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable you to grow within the company and industry.

You will be involved in:

• Design, develop, and maintain secure system architectures for MOD platforms, applications, and networks
• Ensure alignment with relevant standards and frameworks including; NIST SP 800-53, ISO 27001, JSP 440, DEF STAN 05-138, and NCSC guidance
• Produce and maintain security documentation including; Security Architecture Documents, Security Risk Assessments, and Security Management Plans
• Lead and support secure design reviews and contribute to engineering assurance gates
• Liaise with security stakeholders (MOD, NCSC etc.), Information Assurance teams, and other stakeholders to support security assurance processes
• Collaborate with engineering and development teams to ensure security requirements are met from the outset
• Keep up to date of evolving threat landscapes and propose mitigations aligned with system requirements

Your skillset may include:

• Proven experience in cyber security architecture within a defence, aerospace, or critical national infrastructure environment
• Strong knowledge of MOD security requirements (e.g. JSP 440, JSP 604, DEF STANs)
• Good working knowledge and experience of Secure by Design
• A robust background in security architectures, processes, and both industry and government compliances (e.g. ISO 27001, CE/CE+)
• Solid understanding of systems engineering principles and secure development lifecycles
• Experience developing artefacts to support MOD security assurance
• Hands-on knowledge of risk management frameworks (e.g. HMG IS1/IS2, NIST RMF)
• Excellent communication skills, both written and verbal – able to present to technical and non-technical stakeholders
• Certified Information Systems Security Professional (CISSP)
• Certified Information Security Manager (CISM)
• SABSA, TOGAF or equivalent architecture certifications

If this all sounds like something you will be interested in then simply apply and we can discuss the opportunity further!