Job Description

About the role:

At Holland & Barrett, cybersecurity is at the heart of our digital transformation. As we continue to grow and innovate, securing our applications and protecting customer data is a top priority. We are looking for a

Senior Application Security Engineer

to lead our efforts in strengthening application security, mitigating risks, and ensuring best-in-class security practices. If you are passionate about cybersecurity and eager to make a real impact, we want you on our team!

Key Responsibilities:

Security Strategy:

Help define and execute the Holland & Barrett application security strategy. Collaborate with both tech and non-tech teams to integrate security principles into the early stages of product design and development.

Secure SLDC:

Establish a secure Software Development Lifecycle (SDLC) that enables development teams to deliver high-quality applications quickly while implementing essential controls for software integrity, authenticity, and third-party library management.

Risk Assessments:

Conduct risk assessments, threat modeling, and architecture reviews alongside development teams, producing artifacts to drive the implementation of effective security controls.

Standards Development:

Own the creation and maintenance of tailored security standards and guidelines, developing reusable resources for various development teams.

Team Support:

Provide guidance and support to development teams on secure software production practices and flaw mitigation strategies.

Key requirements:

Essential:

5+ years of experience in application security, with at least 3+ years in software development. Strong understanding of application security concepts, including secure coding practices, threat modeling, vulnerability management, and access control mechanisms. Experience with AWS, Kubernetes, Service Mesh, and API Security (including authentication and authorization). Proficiency in programming languages such as Python, Java, JavaScript, GoLang, and Rust. Familiarity with Agile methodologies like SCRUM, along with proven project management skills to oversee multiple security projects simultaneously.

Desired:

Independent, proactive, and detail-oriented, with a commitment to maintaining high security standards. Strong communication and interpersonal skills, facilitating effective collaboration with both technical and non-technical teams.

What we offer:

What we offer:

Wellbeing & Lifestyle Benefits

Health Cash Plan Life Assurance Incentive Scheme - Based on company & personal performance Virtual GP Private Medical care FREE at-home blood test kit Holiday Purchase option Pension Contribution scheme Access to 'Wellhub' with gyms, studios and wellbeing apps

Discounts & Savings

25% Colleague Discount with FREE Next Day Delivery Exclusive Discounts from a wide range of partners /EUR50 Annual Product Allowance to spend in store

Learning & Development

Access to a variety of learning opportunities, including Level 2-5 Apprenticeships, Workshops and our Digital Learning Library AND MORE!

Our culture respects equality, values diversity and encourages individuality - because this allows our people to unlock their potential and be their best. We welcome everyone who shares our EPIC values regardless of background, culture, disability, ethnicity, gender identity or sexual orientation


Holland & Barrett does not accept unsolicited resumes from search firms/recruiters. Please do not forward resumes to our job alias, employees, or any other company location. Holland & Barrett is not and will not be responsible for any fees if a candidate submitted by a search firm/recruiter unless otherwise agreed with respect to specific open position(s).

Division:

Technology

City:

London

Country:

UK

Job Type:

Full Time

Number of Hours:

37.5

Contract Type:

Permanent

Closing Date:

23 November 2025