Security Architect: AI-Driven Security for Cloud & SDLC

Flo Health; Greater London; Hybrid; GBP 120,000 - 180,000; Full time

Benefits offered by this job

Competitive salary and annual reviews

Hybrid work model (3 days in office)

Sabbatical after 5 years

Flo Premium for health and family

Learning and development support

Job summary

Flo Health, London, is seeking a hands-on Security Architect to shape secure architectures and build guardrails for human and AI-agent development. You will lead threat modelling, embed security into SDLC/CI‑CD, and translate risk into pragmatic, business-focused decisions.

The role collaborates with engineering, product and leadership to enable secure innovation. You will assess AI tooling, define secure patterns for LLM integrations, and drive security reviews and risk-facing decisions.

Qualifications

• 7+ years in security engineering, application/product security or security architecture.
• Deep knowledge of Secure SDLC: threat modelling, security testing, app security review and CI/CD security.
• Hands‑on experience with AWS and Cloudflare (or equivalents) and Terraform or similar IaC.
• Strong understanding of OWASP Top 10 and ability to assess exploitability and impact.
• Coding skills in Python/Go/Scala and experience building security tooling or automation.
• Understanding of AI-assisted and agentic development and LLM security risks.

Responsibilities

• Shape secure architecture from day one and lead design reviews for new services.
• Build security harnesses for human and AI-agent development and define guardrails.
• Lead on AI and agentic security for LLM integrations and tool use.
• Create reusable patterns, reference architectures and standards.
• Scale threat modelling and enable engineers to run assessments.
• Automate vulnerability triage and feed fixes into guardrails.
• Explain security risk in pragmatic terms to prioritise business value.
• Advise engineering, product and leadership and support audits.

Skills

Security architecture

Threat modelling

CI/CD security

Cloud security (AWS)

Python/Go/Scala coding

AI security expertise

Tools

AWS

Cloudflare

Terraform

Job description

Flo Health, London, is seeking a hands-on Security Architect to shape secure architectures and build guardrails for human and AI-agent development. You will lead threat modelling, embed security into SDLC/CI‑CD, and translate risk into pragmatic, business-focused decisions.

The role collaborates with engineering, product and leadership to enable secure innovation. You will assess AI tooling, define secure patterns for LLM integrations, and drive security reviews and risk-facing decisions.