Senior Security Technical Architect

NTT Ltd.; Johannesburg; On-site; ZAR 300 000 - 400 000; Full time

Job summary

A leading technology firm in Johannesburg is seeking a Senior Security Technical Architect. In this role, you will design complex security architectures, guide secure coding practices and network security, and lead incident response initiatives. You should have expertise in various security domains, enterprise architecture knowledge, and experience with security technologies. A Bachelor's degree in IT or Computer Science is essential, along with certifications in enterprise architecture methodologies. Join us to safeguard our systems and drive innovative solutions.

Qualifications

• Proficiency in security domains including network security, application security, and cloud security.
• Thorough knowledge of enterprise architecture principles and frameworks like TOGAF.
• Understanding of security standards and regulations such as ISO 27001, NIST, PCI dSS.
• Exceptional understanding of vendor products, business, and technology positioning.

Responsibilities

• Design complex security architectures to meet needs.
• Offer pre-sales support and analyze client requirements.
• Lead incident response activities and ensure compliance with regulations.
• Manage client proof-of-concept initiatives and deliver proposals.

Skills

Network security

Application security

Cloud security

Data protection

Identity and access management

Cryptography

Secure coding practices

Analytical skills

Technical consulting skills

Project management

Education

Bachelor’s degree in information technology, Computer Science, or related fields

Certifications in Enterprise Architecture methodologies (e.g., TOGAF, Zachman)

Tools

Firewalls

Intrusion detection / prevention systems

SIEM

Vulnerability scanners

Secure coding analysis tools

Job description

Job title : Senior Security Technical Architect

Job Location : Gauteng, Johannesburg

Deadline : January 03, 2026

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Your day at NTT DATA

• As a Senior Security Technical Architect at NTT DATA, your expertise will lead the creation of secure, compliant, and innovative solutions that safeguard our systems, applications, and infrastructure. Daily tasks include designing complex security architectures tailored to meet both current and future needs while collaborating closely with cross‑functional teams such as developers, engineers, and project managers to embed security considerations throughout the system design and development lifecycle.
• You’ll proactively work as a trusted technical advisor, offering pre‑sales support and analysing client requirements to enhance their existing security capabilities. Your role includes guiding secure coding practices, network security, identity and access management, and DATA protection. Moreover, you will select and evaluate security technologies, tools, and frameworks to ensure our solutions remain cutting‑edge and effective.
• Your work extends beyond design; you will lead incident response activities and ensure policies, standards, and procedures comply with industry regulations and best practices. Engaging with essential stakeholders, you’ll drive the drafting of technical design documents that align with solution specifications and contribute significantly to our pre‑sale’s efforts, including determining project scopes, product pricing, and RFP / RFI responses.
• Managing client proof‑of‑concept (POC) initiatives and owning proposed solutions through to delivery are key aspects of your role. You will evaluate opportunities for alignment with NTT DATA’s capabilities, prepare executive summaries, develop solution designs, and document necessary deliverables. You’ll be instrumental during final presentations to clients, ensuring all proposals are accurate and align with their needs.

To thrive in this role, you need to have :

• Proficiency in security domains including network security, application security, cloud security, DATA protection, identity and access management, cryptography, and secure coding practices.
• Thorough knowledge of enterprise architecture principles and frameworks (e.g., TOGAF) for designing secure, scalable systems.
• Understanding of security standards and regulations (e.g., ISO 27001, NIST, PCI dSS).
• Experience with security technologies and tools, such as firewalls, intrusion detection / prevention systems, SIEM, vulnerability scanners, and secure coding analysis tools.
• Exceptional understanding of the vendor’s products, business, and technology positioning.
• Advanced analytical and problem‑solving skills for assessing risks and proposing effective security solutions.
• Advanced client engagement and technical consulting skills with the ability to deliver on business targets.
• Extensive project management experience and familiarity with methodologies.
• Bachelor’s degree in information technology, Computer Science, or related fields; certifications in Enterprise Architecture methodologies (e.g., TOGAF, Zachman) are essential.