Application Security Engineer
Hackajob Ltd
Westminster · posted 22 August 2026
Salary
£100,000 a year
Location
Westminster, Greater London
Category
Information Technology
hackajob is partnering directly with Just Eat to hire for this role.
Like the look of this opportunity Make sure to apply fast, as a high volume of applications is expected Scroll down to read the complete job description.
Ready for a challenge? Then Just Eat might be the place for you. Were a leading global online delivery platform, and our vision is to empower everyday convenience.
Whether its a Friday-night feast, a post-gym poke bowl, or grabbing some groceries, our tech platform connects tens of millions of customers with hundreds of thousands of restaurant, grocery and convenience partners across the globe.
About this role At Just Eat , weve 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, youll be working with our global Technology teams to ensure the right security controls are implemented throughout the SDLC.
Youll 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 . They should be able to build collaborative relationships and drive lasting change to raise the bar of security in all our products and services.
These are some of the key components to the position: Translate security principles into requirements and controls that can be understood and implemented across Just Eat Takeaway.coms 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
What will you bring to the team? 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
At JET, this is how we play Our teams forge connections internally and work with some of the best-known brands on the planet, giving us truly international impact in a dynamic environment.
Being the best at what we do isnt just about delivering on our strategy. It's a competition for something incredibly valuable our customers' choice. Every time a customer decides where to order, they're picking a side.
At the heart of the JET Customer League are our values and behaviours. They guide every interaction, every decision, every innovation. These are the actions we need to perform consistently and brilliantly, to surpass the competition and earn our customers loyalty, again and again.
Fun, fast-paced and supportive, the JET culture is about movement, growth, helping one another to succeed and celebrating wins. By truly living our values and embodying our behaviours, were building a customer-first culture which enables us to stay one step ahead of the competition.
Inclusion, Diversity & Belonging No matter who you are, what you look like, who you love, or where you are from, you can find your place at Just Eat . Were committed to creating an inclusive culture, encouraging diversity of people and thinking, in which all employees feel they truly belong and can bring their most colourful selves to work every day.
What else are we delivering? Want to know more about our JETers, culture or company? Have a look at our career site where you can find people's stories, blogs, podcasts and more JET journeys. xwzovoh
Are you ready to join the team? Apply now!
#LI-RB1
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Like the look of this opportunity Make sure to apply fast, as a high volume of applications is expected Scroll down to read the complete job description.
Ready for a challenge? Then Just Eat might be the place for you. Were a leading global online delivery platform, and our vision is to empower everyday convenience.
Whether its a Friday-night feast, a post-gym poke bowl, or grabbing some groceries, our tech platform connects tens of millions of customers with hundreds of thousands of restaurant, grocery and convenience partners across the globe.
About this role At Just Eat , weve 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, youll be working with our global Technology teams to ensure the right security controls are implemented throughout the SDLC.
Youll 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 . They should be able to build collaborative relationships and drive lasting change to raise the bar of security in all our products and services.
These are some of the key components to the position: Translate security principles into requirements and controls that can be understood and implemented across Just Eat Takeaway.coms 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
What will you bring to the team? 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
At JET, this is how we play Our teams forge connections internally and work with some of the best-known brands on the planet, giving us truly international impact in a dynamic environment.
Being the best at what we do isnt just about delivering on our strategy. It's a competition for something incredibly valuable our customers' choice. Every time a customer decides where to order, they're picking a side.
At the heart of the JET Customer League are our values and behaviours. They guide every interaction, every decision, every innovation. These are the actions we need to perform consistently and brilliantly, to surpass the competition and earn our customers loyalty, again and again.
Fun, fast-paced and supportive, the JET culture is about movement, growth, helping one another to succeed and celebrating wins. By truly living our values and embodying our behaviours, were building a customer-first culture which enables us to stay one step ahead of the competition.
Inclusion, Diversity & Belonging No matter who you are, what you look like, who you love, or where you are from, you can find your place at Just Eat . Were committed to creating an inclusive culture, encouraging diversity of people and thinking, in which all employees feel they truly belong and can bring their most colourful selves to work every day.
What else are we delivering? Want to know more about our JETers, culture or company? Have a look at our career site where you can find people's stories, blogs, podcasts and more JET journeys. xwzovoh
Are you ready to join the team? Apply now!
#LI-RB1