Engineer (Application Security)

dunnhumby is the global leader in Customer Data Science, partnering with the world’s most ambitious retailers and brands to put the customer at the heart of every decision. We combine deep insight, advanced technology, and close collaboration to help our clients grow, innovate, and deliver measurable value for their customers. 

dunnhumby employs nearly 2,500 experts in offices throughout Europe, Asia, Africa, and the Americas working for transformative, iconic brands such as Tesco, Coca-Cola, Nestlé, Unilever and Metro.

 

Overview

We are looking for an Application Security Engineer with a strong engineering mindset—someone who has built and maintained technical systems and understands how products are developed end‑to‑end. The ideal candidate may come from a security or product background, but must be deeply familiar with the SDLC, CI/CD pipelines, Git workflows, and modern software engineering practices. This role combines hands‑on security engineering with enablement, governance, and cross‑team collaboration.

The Security Engineer will drive application vulnerability management, embed security into development pipelines, and guide engineering teams in building secure-by-design applications. Strong communication skills and the ability to build trusted relationships across both technical and non‑technical stakeholders is essential.

Key Responsibilities

Application Security

• Integrate security best practices into the SDLC and operate, tune, and maintain AppSec tooling (SAST, DAST, SCA).
• Provide secure design guidance, perform secure code reviews, reproduce issues, propose fixes, and validate remediations with developers.

Cloud & Kubernetes Security

• Embed security checks in CI/CD for container images, IaC, and Helm charts & contribute to runtime protections such as admission controls, policy-as-code, scanning, and drift detection.
• Promote secure infrastructure configurations and Kubernetes defaults (RBAC, network policies, PodSecurity, secrets handling, image provenance).

Vulnerability Management & Reporting

• Ensure CI/CD pipelines have robust, effective security coverage and manage exceptions & risk workflows.

• Maintain a consolidated vulnerability backlog with clear ownership and SLA tracking and build automated reporting using tools like Power BI or Excel/Pandas.

Enablement & Governance

• Develop secure coding standards and practical developer guidance.
• Run secure development forums, build and maintain strong relationship with engineering teams and drive application vulnerability management through engagements and reporting.
• Act as a trusted advisor to both engineers and leadership – identifying and communicating risk clearly and persuasively.

 

What you can expect from us

We won’t just meet your expectations. We’ll defy them. So you’ll enjoy the comprehensive rewards package you’d expect from a leading technology company. But also, a degree of personal flexibility you might not expect.  Plus, thoughtful perks, like flexible working hours and your birthday off.

You’ll also benefit from an investment in cutting-edge technology that reflects our global ambition. But with a nimble, small-business feel that gives you the freedom to play, experiment and learn.

And we don’t just talk about diversity and inclusion. We live it every day – with thriving networks including dh Gender Equality Network, dh Proud, dh Family, dh One, dh Enabled and dh Thrive as the living proof.  We want everyone to have the opportunity to shine and perform at your best throughout our recruitment process. Please let us know how we can make this process work best for you. 

Our approach to Flexible Working

At dunnhumby, we value and respect difference and are committed to building an inclusive culture by creating an environment where you can balance a successful career with your commitments and interests outside of work.

We believe that you will do your best at work if you have a work / life balance. Some roles lend themselves to flexible options more than others, so if this is important to you please raise this with your recruiter, as we are open to discussing agile working opportunities during the hiring process.

For further information about how we collect and use your personal information please see our Privacy Notice which can be found (here)