Location
London, London, United Kingdom
Posted
July 13, 2026
Job Description
Founding Frontend Engineer
We're recruiting for a leading AI security start-up who are building an adaptive security layer designed to detect and respond to evolving threats in real time. As a Founding Frontend Engineer, you'll be responsible for developing, maintaining, and scaling their user portal - the first thing customers see when engaging with their product.
You'll also be crafting the principles and values the organisation upholds when doing frontend engineering now, and into the future. This is an opportunity to take complete ownership over their frontend stack, work with an incredible team of talented engineers, and to help build the future of their core offering.
Your Responsibilities
*
Owning the full frontend surface from design system foundations to performance to deployment.
*
Translating UI/UX designs into clean, efficient, and maintainable code.
*
Developing accessible and high-performi...
We're recruiting for a leading AI security start-up who are building an adaptive security layer designed to detect and respond to evolving threats in real time. As a Founding Frontend Engineer, you'll be responsible for developing, maintaining, and scaling their user portal - the first thing customers see when engaging with their product.
You'll also be crafting the principles and values the organisation upholds when doing frontend engineering now, and into the future. This is an opportunity to take complete ownership over their frontend stack, work with an incredible team of talented engineers, and to help build the future of their core offering.
Your Responsibilities
*
Owning the full frontend surface from design system foundations to performance to deployment.
*
Translating UI/UX designs into clean, efficient, and maintainable code.
*
Developing accessible and high-performi...