Security engineer, application security (UK)
The role asks for someone who can build security into an AI platform from the design stage onward, running threat models with product teams and setting up scanning and code review in the build pipeline. A strong candidate brings several years of hands on application security work on large production systems, reads code in more than one language, and knows when to automate checks versus review by hand. The person also needs to explain risk clearly to engineers and product people and to favor practical fixes over blocking work.
How it fits the AI era
Much of the routine scanning, triage and pattern matching can be handled by automated tools and AI agents, which frees the engineer to focus on design reviews, threat modeling and judgment calls on novel risks. The work shifts toward securing AI systems themselves, including agents, data pipelines and model training environments, where attack paths are less well known. What stays human is the ability to reason about business logic, weigh risk against delivery speed, and persuade teams to act.
How it builds AI experience
Working here means gaining direct exposure to securing LLM based applications and agent systems grounded in company data, plus building automation that uses AI agents to speed up security work. That experience is hard to get elsewhere and maps well to a growing field. Someone preparing for this role could build it by studying common LLM attack patterns, practicing threat modeling on AI features, and getting comfortable with security tooling in CI pipelines.
Worth showing
- Application security on production systems
- Threat modeling with product teams
- SAST and DAST in CI/CD
- Code review across languages
- LLM and AI security basics
This is our own read, written from the employer's posting and the company's Spotlight. The employer's posting is the source of truth for the role.
About Writer
Writer is an enterprise AI platform for building and supervising AI agents grounded in company data, per the company.
Security engineer, application security (UK) in London employer: present of AI
H Company is an exceptional employer for Product Designers, offering a dynamic work environment in London where innovation meets collaboration. With a strong focus on employee growth, the company encourages continuous learning and experimentation, particularly in the evolving field of AI design. The inclusive culture fosters open communication with users and cross-functional teams, ensuring that every designer's voice is heard and valued, making it a truly rewarding place to advance your career.
