Remote CISO: AI-Driven Security Leader (Contractor)

Decentralized Masters; Greater London; Remote; GBP 140,000 - 210,000; Part time

Benefits offered by this job

Fully remote, globally distributed

Independent contractor opportunity

Team offsites

Job summary

Catalyst Capital in the United Kingdom seeks its first Chief Information Security Officer to own security across the group. You will set strategy, build the program, and personally lead response when incidents occur.

The role combines core security leadership with AI-driven security efforts, half hands-on and half leader of a remote engineering team across time zones. You will report to group leadership and translate risk into plain language for executives.

Qualifications

• 10+ years in security, including 3+ years leading a security function as CISO or equivalent at a company of 100+ people.
• Experience leading live incident response with executive briefing.
• Built or rebuilt a security program with strategy, policy, tooling and training.
• AI-native operator: uses AI agents to detect, review code/configs, and automate security tasks.
• Deep knowledge of AI-specific risks: prompt injection, restricted agent permissions, data exposure.
• Hands-on with cloud security (AWS), IAM, SIEM, endpoint protection and email security.
• Writes code: scripts and automation beyond vendor UIs.
• Experience in crypto/fintech or high-fraud industries and awareness of phishing and impersonation.
• Documentation of processes and contracts; ability to brief executives clearly.
• Player-coach: comfortable hands-on work while leading a distributed team.

Responsibilities

• Define security strategy, program, and budget for Decentralized Masters and group brands.
• Lead end-to-end incident response, including runbooks, tabletop exercises and legal coordination.
• Own cloud security and identity across the group; enforce least-privilege and short-lived credentials.
• Assess third-party and vendor risk with audit attestations and clear bar for connection.
• Build and oversee AI-driven security harnesses, agentic systems and monitoring across surfaces.
• Mentor security engineers and decide what to build in-house versus outsourcing.

Skills

Security leadership

Incident response

Security program development

AI-native security

Cloud security (AWS)

IAM / identity & access

SIEM / security tooling

Coding / scripting

Crypto / fintech risk

Executive briefing

Remote team leadership

Tools

Rapid7

AWS

End-user security tooling

Job description

Catalyst Capital in the United Kingdom seeks its first Chief Information Security Officer to own security across the group. You will set strategy, build the program, and personally lead response when incidents occur.

The role combines core security leadership with AI-driven security efforts, half hands-on and half leader of a remote engineering team across time zones. You will report to group leadership and translate risk into plain language for executives.