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Principal Security Engineer

smart.co | london, United-Kingdom | Posted May 29, 2026

Position Overview

At Smart, our mission is to transform retirement, savings and financial wellbeing, across all generations, around the world.

THE ROLE

We are looking for a visionary Principal Security Engineer to bridge the gap between rapid development and ironclad security. In this role, you won’t just be checking boxes - you will be the primary architect of a culture where security is invisible, automated, and inseparable from the CI/CD pipeline.

Reporting to the Director of Engineering Operations, you’ll lead the charge in evolving our infrastructure-as-code (IaC) secure practices, mentoring a team of engineers, and ensuring that our scale never outpaces our safety.

What You’ll Do:

  • Architect & Lead: Design and implement end-to-end secure software development toolchain. You’ll own the roadmap for security automation, including building out our AI security posture for our platform.

  • Automate Everything: Integr...

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