Security Engineer — Greenfield Cloud & Identity Security

Referment; Greater London; On-site; GBP 60,000 - 100,000; Full time

Job summary

Referment is partnering with a technology-driven investment firm to hire a Security Engineer who will help build the security function from the ground up. You’ll own security architecture, tooling, and processes from day one, collaborating with a highly technical team and senior leadership to scale a modern, engineering-led security programme.

This is a genuine greenfield opportunity with significant ownership over security from day one, designed to enable rapid, secure growth in a fast-moving

Qualifications

• Strong experience in Security Engineering or Detection Engineering.
• Expertise in threat detection, monitoring, incident response, and security automation.
• Experience securing modern cloud-native environments.
• Solid understanding of IAM, authentication, authorization, PKI, and identity security.
• A builder's mindset with ownership of security capabilities from scratch.

Responsibilities

• Design, build, and own detection and response capabilities, including alerting and incident workflows.
• Implement security controls across cloud, infrastructure, and applications.
• Develop authentication, authorization, identity, and certificate management frameworks.
• Partner with software and infrastructure engineers to embed security in the SDLC.
• Define long-term security architecture, standards, and strategy as the platform evolves.

Skills

Security engineering

Threat detection

Cloud security

IAM & PKI

Incident response

Ownership mindset

Job description

Referment is partnering with a technology-driven investment firm to hire a Security Engineer who will help build the security function from the ground up. You’ll own security architecture, tooling, and processes from day one, collaborating with a highly technical team and senior leadership to scale a modern, engineering-led security programme.

This is a genuine greenfield opportunity with significant ownership over security from day one, designed to enable rapid, secure growth in a fast-moving