Staff Security Engineer

About the company
This is a tech scale-up operating as critical infrastructure for some of the largest and fastest-moving technology companies in the world - think high-growth AI companies and global SaaS platforms running at a scale where downtime and compromise simply aren't options.
  
The role
Hack it. Fix it. Hack through the fix. Repeat.
This is a new position created to build two new functions from scratch: Application Security and Offensive Security.
  
AI is front and centre here. The business has leaned heavily into AI tooling and agent-assisted development, which creates real and immediate security challenges. You'll be one of the people who shapes how those challenges are managed, with access to cutting-edge tooling.
  
This is a staff-level role, which means your influence extends well beyond your own work. You'll be the person who helps engineering teams understand security - not the team th...