Requirements

• Proven experience in cloud security, security engineering, detection engineering, or a closely related field.
• Strong experience securing and operating production AWS environments.
• Deep understanding of cloud security principles, modern attack techniques, and security best practices.
• Experience building or operating detection, monitoring, or threat detection capabilities.
• Hands-on experience investigating security incidents, leading technical investigations, and driving remediation efforts.
• Experience implementing security controls across cloud platforms and production environments.
• Strong programming skills and experience building automation, tooling, or operational workflows.
• Experience working with infrastructure-as-code practices and modern cloud-native technologies.
• Comfortable using modern AI-assisted development tools to improve productivity and engineering effectiveness.
• Ability to communicate security concepts clearly and collaborate effectively with engineering teams.
• A pragmatic approach to balancing security, customer impact, and engineering velocity.

Nice to Haves

• Experience building detection engineering, threat hunting, or security operations capabilities at scale.
• Experience with cloud-native security platforms, CNAPP technologies, or large-scale cloud security monitoring.
• Experience applying AI to detection, response, threat analysis, or security operations workflows.
• Familiarity with AWS networking, identity, and cloud security patterns.
• Experience working across both large-scale SaaS environments and high-growth companies.

What You'll Be Doing

• Design and implement secure cloud architectures across our AWS environments.
• Build and maintain protective and detective controls that improve visibility into threats across our cloud environments.
• Develop detection engineering capabilities that identify attacker behaviour and reduce time to detection and response.
• Lead cloud security investigations and incident response activities in partnership with engineering teams.
• Participate in a shared on-call rotation and help coordinate containment, remediation, and recovery efforts during security incidents.
• Build automation that improves the scalability, reliability, and effectiveness of security controls.
• Partner with infrastructure teams to embed security into cloud platforms, infrastructure-as-code workflows, and engineering practices.
• Develop and improve cloud security standards, guidance, and best practices across Fin.
• Drive security initiatives from problem definition through design, implementation, and measurable outcomes.
• Assess emerging threats to cloud environments and help evolve our defensive capabilities.
• Help shape Fin's AI-first approach to security, including AI-assisted detection, automated investigations, continuous monitoring, and emerging defensive capabilities.
• Support the secure adoption of AI-assisted software development tools and engineering workflows.

Perks and Benefits

• Competitive salary and equity in a fast-growing start-up
• We serve lunch every weekday, plus a variety of snack foods and a fully stocked kitchen
• Regular compensation reviews - we reward great work!
• Unlimited access to Claude Code and best-in-class AI tools; experimentation & building is encouraged & celebrated.
• Pension scheme & match up to 4%
• Peace of mind with life assurance, as well as comprehensive health and dental insurance for you and your dependents
• Flexible paid time off policy
• Paid maternity leave, as well as 6 weeks paternity leave for fathers, to let you spend valuable time with your loved ones
• If you’re cycling, we’ve got you covered on the Cycle-to-Work Scheme. With secure bike storage too
• MacBooks are our standard, but we also offer Windows for certain roles when needed.