Prolific is not just another player in the AI space – we are the architects of the human data infrastructure that's reshaping the landscape of AI development. In a world where foundational AI technologies are increasingly commoditized, it's the quality and diversity of human-generated data that truly differentiates products and models.

The role

Security at Prolific isn't an afterthought, it's foundational to how we build. As a company trusted by world‑leading research institutions and AI labs to handle sensitive data at scale, the security of our application layer is critical. We handle participant data, researcher credentials, payment flows, and API integrations that demand rigorous protection at the code level.

As a Senior Application Security Engineer, you'll be the technical authority on application security at Prolific. You'll work hands‑on with our engineering teams to find and fix vulnerabilities in our codebase, perform security testing, build se...