Security engineer, application security (UK)

This full-time position is based in London and focuses on securing the application layer of an enterprise AI platform. The day-to-day work involves embedding security measures directly into codebases while collaborating with engineering teams to maintain a trustworthy environment. You will be responsible for threat modeling large language model architectures and developing automated security controls that scale across the growing infrastructure. The role also includes protecting training data pipelines and designing safeguards for AI agents. The advert does not specify particular technical skills, tools, or programming languages required for this position. It also does not list any specific experience levels, qualifications, or language requirements. There is no mention of a hybrid or remote working arrangement, nor are there details about shift patterns. The opportunity is described as suitable for individuals who want to define how enterprise AI applications are secured. It appeals to those who prefer finding creative, secure solutions rather than simply rejecting new initiatives. The company is a venture-backed startup valued at $1.9 billion, serving major global brands with its generative AI solutions.