Security Engineer - Boutique Hedge Fund - London

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

Job summary

Mondrian Alpha, a leading investment firm in London, seeks a Security Engineer to join its growing cybersecurity team. The role spans IAM, device security, vulnerability management, and incident response, with an emphasis on zero-trust architectures at scale.

The ideal candidate has 5+ years in cybersecurity, deep IAM experience (Entra ID, Conditional Access, PAM), and strong cloud exposure (Azure, AWS). Kubernetes expertise and secure-by-default policies are highly valued.

Qualifications

• 5+ years of hands-on cybersecurity experience.
• Strong experience with IAM tooling (Entra ID, CA, PAM).
• Proficiency in Azure and AWS cloud security.
• Experience with Kubernetes and secure-by-default policies.

Responsibilities

• Design and implement security solutions across the business.
• Lead vulnerability management programmes.
• Collaborate with infrastructure teams to secure workloads, RBAC and network policies.
• Respond to incidents and contribute to threat intelligence.

Skills

IAM tooling

Zero Trust

Python scripting

Vulnerability mgmt

Incident response

Threat intel

Cloud security

RBAC

Tools

Entra ID

Conditional Access

PAM

Azure

AWS

Kubernetes

Job description

My client, a leading alternative investment firm, is seeking a Security Engineer to join their growing cybersecurity team in London.

The successful candidate will join a dynamic, technically driven team responsible for designing and implementing cutting-edge security solutions across the business. This is a broad, hands-on role encompassing Identity and Access Management (IAM), device security, vulnerability management, and incident response - with a strong emphasis on building secure-by-default, zero trust environments at scale.

The ideal candidate will have 5+ years of hands-on cybersecurity experience, with strong proficiency in IAM tooling such as Entra ID, Conditional Access, and Privileged Access Management (PAM), alongside solid exposure to cloud platforms including Azure and AWS.

Candidates should be comfortable leading vulnerability management programmes, scripting in Python, and working closely with infrastructure teams. Experience with container orchestration platforms - particularly Kubernetes, including securing workloads, managing RBAC, network policies, and secrets management - is highly desirable, as is a background in security operations or incident response and familiarity with threat intelligence and TTP frameworks.

My client offers a highly competitive compensation package, including significant increases on current base salary and market-leading bonuses, alongside excellent benefits and strong long-term career progression within a high-performing firm.