Senior Security Architect

NineTech; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

NineTech is seeking an experienced Zero Trust Security Architect to own security architecture across EUC and Collaboration platforms, ensuring robust controls, governance, and compliance within a complex enterprise.

You will drive architecture decisions, lead IAM strategies, deliver PAM and least privilege, and partner with SOC and security leadership to align with CIS/NIST/ISO 27001 standards in highly regulated environments.

Qualifications

• 7+ years of experience as a Security Architect.
• Experience securing EUC and Collaboration platforms in highly regulated environments.
• Deep expertise in Zero Trust Architecture and Identity Protection.
• Strong executive communication and stakeholder management skills.
• Experience working with SOC and SIEM teams; governance and risk management.
• Familiarity with CIS Benchmarks, NIST, ISO 27001 and internal security standards.

Responsibilities

• Define and own security architecture for EUC and Collaboration platforms.
• Review and sign-off High-Level Designs (HLDs) and Low-Level Designs (LLDs).
• Provide formal security architecture sign-off.
• Design and implement Zero Trust security controls.
• Lead Identity & Access Management strategies; PAM, PAM, and Least Privilege frameworks.
• Partner with SOC teams and security leadership; manage risk registers and governance.
• Represent Security within Architecture Review Boards.
• Validate solutions against CIS, NIST, ISO 27001.

Skills

Zero Trust Architecture

Identity Protection

SOC & SIEM

Executive communication

Stakeholder management

NIST Framework

Entra ID Identity Protection

Tools

Entra ID Identity Protection

Job description

We're looking for an experienced Zero Trust Security Architect to take ownership of security architecture across End User Computing (EUC) and Collaboration platforms, ensuring robust security controls, governance, and compliance across a complex enterprise environment.

You'll be the security authority, driving architecture decisions, mitigating risk, and ensuring secure delivery across critical business platforms.

Define and own the security architecture for EUC & Collaboration platforms

Review and approve High-Level Designs (HLDs) and Low-Level Designs (LLDs)

Provide formal security architecture sign-off

Design and implement Zero Trust security controls

Lead Identity & Access Management strategies

Deliver Conditional Access, Privileged Access Management (PAM), and Least Privilege frameworks

Define Data Protection, DLP, and Information Barrier requirements

Represent Security within Architecture Review Boards

Partner with Security Operations Centre (SOC) teams and security leadership

Manage security risk registers and governance processes

Validate solutions against CIS Benchmarks, NIST, ISO 27001, and internal security standards

7+ years' experience as a Security Architect

Strong enterprise infrastructure and end-user transformation background

Experience securing EUC and Collaboration platforms in highly regulated environments

Deep expertise in:

Zero Trust Architecture

Identity Protection

Strong experience working with SOC and SIEM teams

Excellent stakeholder management and executive communication skills

Proven track record delivering within regulated industries

Experience operating across large global organisations and distributed teams

Entra ID Identity Protection

NIST Cyber Security Framework

Banking or Financial Services experience