Founding Head of Security Operations

Radiant; Greater London; On-site; GBP 120,000 - 180,000; Full time

Job summary

Radiant in London is seeking a Head of Security Operations to build Radiant's security function from the ground up. This is a founding role where you’ll help to define the strategy, tooling and operating model for security across our data centres, compute platform and network fabric.

You will also represent Radiant's security posture directly to customers and prospects who are evaluating us for their AI workloads.

Qualifications

• Hands-on data centre security expertise across physical, environmental and infra layers.
• Experience building a security function or SOC from the ground up.
• Ability to represent security to customers and prospects, including executives.
• Strong stakeholder management with engineering leadership.

Responsibilities

• Build and own the security strategy, policies, standards and risk posture.
• Define roadmap and maturity targets for the SecOps function.
• Build hiring plan and business case for the security team.
• Lead customer due diligence, RFPs and technical evaluations on security.
• Audit customer deployments for alignment to security specs.
• Source, deploy and operate security tooling for Radiant DCs.
• Own incident response and post-incident reviews for resilience.
• Collaborate with CTO, InfoSec, Engineering and Platform teams on tooling.

Skills

Security leadership

Data centre security

Incident response

Stakeholder management

GRC collaboration

Job description

Radiant in London is seeking a Head of Security Operations to build Radiant's security function from the ground up. This is a founding role where you’ll help to define the strategy, tooling and operating model for security across our data centres, compute platform and network fabric.

You will also represent Radiant's security posture directly to customers and prospects who are evaluating us for their AI workloads.