Senior Enterprise Security Architect – Telecoms Design

Company: NTT DATA
Apply for the Senior Enterprise Security Architect – Telecoms Design
Location: London
Job Description:

Overview

In this role you shape client transformation through enterprise security design, translating requirements into secure architectures across hybrid cloud and on-prem environments. You work with cross-functional teams to align security controls with business goals, using industry frameworks to deliver risk-managed solutions. You’ll influence stakeholders, review client needs, and guide security architecture options that support enterprise missions. This is an opportunity to grow in a consultancy that values impactful, security-driven delivery.

Pay / Benefits

  • tailored benefits
  • learning and development opportunities
  • flexible work options

Responsibilities

  • Translate security requirements into enterprise architecture patterns at conceptual/logical levels across SDLC phases
  • Define strategic, tactical, and operational security architecture options aligned to business goals
  • Design IT, network and security principles for baseline and target architectures
  • Develop security control architectures mapping to conceptual and contextual architectures
  • Oversee validation, documentation, assessment, and authorization processes for information systems
  • Lead adoption of Cyber/Technology Security Controls Frameworks (NIST/ISO/ISF/COBIT) to implement solutions
  • Demonstrate subject matter knowledge in security domains (e.g., PAM/IAM, Cloud, IoT) and guide client journeys
  • Engage with Enterprise Architects, business leaders, and technologists to foster relationships and drive delivery
  • Coordinate discovery and audits to extract findings and recommendations
  • Ensure architectures address governance, risk, and regulatory requirements (UK standards)
  • Provide advisory support for security programmes or projects and ensure alignment with business processes

Key requirements

  • Broad security consulting background
  • Must have worked in a Telecoms environment
  • Multi-year client-facing project and presentation experience in a professional services setting
  • Strong ability to operate in demanding environments with delivery focus
  • Influential with ability to build relationships with delivery partners and stakeholders at all levels
  • Experience interfacing with Enterprise Architects, business people, and technologists
  • Ongoing architectural and security qualifications (e.g., Open CA, TOGAF, SABSA, CCSK, CCSP, etc.)
  • Willingness to obtain Defence Vetting (SC) if required for Public Sector work
  • Experience in public sector environments
  • Influencing and stakeholder management
  • Relationship-building across diverse audiences
  • Delivery-oriented mindset
  • Enterprise Security Architecture
  • Security design for hybrid cloud (O365, AWS, Azure, GCP) and on-prem
  • Security controls frameworks (NIST/ISO/CIS/NCSC)

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Posted: September 30th, 2026