> Markdown version of [/jobs/ext/3521094-application-security-engineer](https://www.wearedevelopers.com/jobs/ext/3521094-application-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Security Engineer - **Company:** Just Eat Takeaway.com - **Location:** London, UK - **Salary:** £41,783.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Code Review, Open Web Application Security, Systems Development Life Cycle, Secure Coding, Large Language Models, Software Security, Static Application Security Testing - **Published:** October 2, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5905365068 ## About the Role * Experience defining controls for complex environments independent of the underlying platform or technology * Detailed knowledge of OWASP Top 10, and in relation how to design appropriate security controls * Experience working with Secure Coding Tools (SCA, SAST & Secrets) * Experience in identifying & addressing vulnerabilities throughout SDLC, with the ability to switch between defensive & offensive mindset * Experience securing AI-enabled applications and assessing common AI/LLM vulnerabilities * Great communication skills, and proven stakeholder management both within and outside of technology departments * Experience in guiding and developing engineers on best practice * You will have a passion for learning, always looking to identify opportunities to develop your own security knowledge ## Description At Just Eat Takeaway.com, we've built a world-class security team that believes passionately in protecting our products, as well as the data of our customers and employees. As an application security engineer, you'll be working with our global Technology teams to ensure the right security controls are implemented throughout the SDLC. You'll be a subject matter expert for your partners, able to context switch and adapt to the needs of our globally dispersed development teams working across multiple languages / tools / methodologies. You may be asked to consult on a time sensitive feature, facilitate a threat model for a new product, or deep-dive into a legacy application; no two days are the same. We believe everyone should be responsible for security; a core component of every engagement will be education & awareness of our partners. The role requires a well-rounded and upbeat person who is passionate about making a positive impact to Just Eat Takeaway.com. They should be able to build collaborative relationships and drive lasting change to raise the bar of security in all our products and services. * Translate security principles into requirements and controls that can be understood and implemented across Just Eat Takeaway.com's platforms * Lead security reviews of varying scale & depth including threat modelling, design review, consultation and code reviews to improve the overall security of our applications * Assess vulnerabilities in AI-enabled applications and services, and leverage AI tools and agents to improve security analysis and developer enablement * Be a leading voice, championing security with developers, in both technical & non-technical terms * Work collaboratively with our key stakeholders, and also independently