Security engineer, application security (UK)

Overview

Writer is hiring a security engineer, application security to join the team in London. The position involves working at the intersection of application security, AI infrastructure, and developer enablement. The role is hybrid from the London office, reporting to the head of security engineering. Visa sponsorship may be offered for suitable candidates.

Requirements

Applicants need four or more years of hands-on experience in application security engineering, with a track record of securing large-scale production systems. Candidates should understand developer workflows and possess technical expertise in at least two programming languages, including Python, Java, Go, JavaScript, or TypeScript. Knowledge of security tools and methodologies such as SAST, DAST, vulnerability management platforms, security testing frameworks, and DevSecOps practices is required. Applicants must also demonstrate strong communication skills, a builder mindset focused on automation, and alignment with the company values of connecting, challenging, and owning.

What you get

Full-time employees in the UK receive comprehensive medical and dental insurance, a competitive pension scheme with company contributions, and generous paid time off plus company holidays. Additional benefits include 16 weeks of paid parental leave for all parents, fertility and family planning support, and competitive compensation with company stock options. Employees also receive annual work-life stipends for wellness and learning and development, alongside company-wide and team off-sites.