Senior Security Consultant

Senior Security Consultant

NTT DATA is looking for a Senior Security Consultant to provide expert guidance and hands‑on support during the analysis and design phase of critical technology projects.

The Senior Security Consultant will ensure that security requirements are embedded into system architecture and operational processes, mitigating risks and aligning with regulatory standards.

• Conduct security gap analysis for applications and infrastructure.
• Define and document security requirements for new systems and integrations.
• Define and document security functional specification for new systems and integrations.
• Define and document identity and access controls specifications for authentication and authorization.
• Collaborate with Tech Risk, Architecture, and Project Management teams to ensure compliance with internal and external security standards.
• Review and validate design documents for adherence to security best practices.
• Provide recommendations for remediation and risk mitigation strategies.
• Support security testing plans and assist in vendor assessments.

• Solid track record in security controls design and architecture.
• Experience with secure design principles and threat modelling.
• Sound knowledge and experience in authentication and authorization controls design (e.g. OAuth, OIDC, SAML, JWT, B2B, B2C, MFA, CSRF, PKCE).
• Proven experience in information security consulting within financial services or regulated environments.
• Strong knowledge of risk management frameworks (ISO 27001, NIST).
• Expertise in application security, network security, and cloud security.
• Familiarity with regulatory compliance (e.g., GDPR, FCA guidelines).
• Ability to work collaboratively with cross‑functional teams and external vendors.
• Excellent communication and documentation skills.

• CISSP, CISM, or equivalent certifications.
• Prior involvement in digital transformation or post‑trade systems projects.

• Inclusive work environment prioritizing mutual respect, accountability, and continuous learning.
• Opportunities for learning, development, and flexible work options.
• Range of tailored benefits supporting physical, emotional, and financial well‑being.

We are an equal opportunities employer. We believe in the fair treatment of all employees and are committed to promoting equity and diversity in employment practices. We proudly recognize and support diverse groups, including Women’s Business Network, Cultural and Ethnicity Network, LGBTQ+ & Allies Network, Neurodiversity Network, and Parent Network.

We accept reasonable adjustments for applicants with disabilities and guarantee interviews to those who disclose a disability and meet the minimum requirements for the role.

London, England, United Kingdom