Security Architect

hackajob is collaborating with NTT DATA UK to connect them with exceptional tech professionals for this role.

Technical Consultancy, London

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Flexible remote-working options

As a Security Consultant (Architecture) at NTT DATA, you will collaborate with clients and stakeholders to design, implement, and validate secure architectural solutions across infrastructure, cloud, and application environments. Leveraging your expertise in risk assessment and governance frameworks such as ISO 27001, NIST, or CIS, you will deliver cutting‑edge strategies that address evolving threat landscapes while ensuring alignment with business objectives.

This role provides a unique opportunity to guide clients in embedding security into foundational designs while supporting compliance and risk mitigation efforts.

Please note that to be considered for this role, you must be eligible for SC clearance.

• Translate business and compliance requirements into practical, well‑documented security architecture designs using recognized frameworks (e.g., ISO 27001, NIST, CIS).
• Develop, document, and maintain consistent secure architectural patterns with an emphasis on cloud security (AWS, Azure, GCP).
• Implement threat‑informed design principles, integrating zero‑trust architectures and defensive depth strategies to address security gaps and enhance resilience.
• Maintain alignment between security policies, enterprise architecture principles, and client expectations.

• Conduct comprehensive risk assessments and threat modeling to evaluate existing or proposed architectures for vulnerabilities.
• Provide actionable mitigation strategies informed by a risk‑based approach and evolving threat intelligence data.
• Participate in or support incident response initiatives, aiding in root‑cause analysis and the development of post‑incident recommendations.

• Act as a trusted advisor to clients by engaging in technical discussions to inform strategic security decisions.
• Collaborate cross‑functionally with development, operations, and engineering teams to validate that security controls are effectively implemented across the development lifecycle.
• Deliver technical insights in presentations, workshops, and reports tailored to both technical and executive audiences.

• Engage in audits, assessments, and reviews to ensure delivery meets strict alignment with industry frameworks.
• Provide clients with guidance on the implementation and enforcement of technical standards and cloud‑specific security policies.
• Maintain up‑to‑date knowledge of regulations and frameworks such as NIS2 and DORA to address compliance risks and initiatives.
• Recommend improvements in security policies based on compliance evaluations and evolving risks.

• Contribute to the development of security roadmaps by delivering expert recommendations tailored to each client’s security objectives.
• Assess emerging technologies and threats, identifying opportunities to evolve architectural strategies through innovation and cutting‑edge tools.
• Participate as an SME in pre‑sales activities, assisting in defining technical collateral that supports project delivery.

What experience you’ll bring:

• Minimum 5 years’ experience in security architecture, compliance, and cloud security roles, working with frameworks such as ISO 27001, NIS/NIS2, or NIST CSF.
• Deep understanding of cloud security principles including management on AWS, Azure, and GCP platforms.
• Familiarity with IAM, CASB, SIEM, and container security solutions.

• CISSP or SABSA certifications required.
• Cloud‑specific certifications preferred (e.g., AWS Security Specialty, Azure Solutions Architect).
• Direct experience working in government, military, or intelligence organizations advantageous.

• Proven ability to collaborate across diverse technical teams, influencing senior stakeholders…