All the details
The Principal Security Consultant (Online) is a senior, hands‑on security specialist supporting the secure design and delivery of online and digital platforms. The role provides expert security assurance, design review, and DevSecOps guidance across web, mobile, API, and cloud‑native services hosted primarily on Microsoft Azure. The role works closely with the Business Information Security Officer (BISO) for the online domain to ensure security risks are identified early, assessed pragmatically, and managed in line with business priorities and enterprise risk appetite.
What you'll do
* Review and assess solution designs and architectures for online and digital services
* Identify security risks across identity, APIs, cloud services, data flows, and third‑party integrations
* Provide clear, proportionate security recommendations aligned to enterprise standards
* Advise on embedding security controls into CI/CD pipelines (e.g. SAST, SCA, secrets scanning, IaC scanning)
* Support secure engineering practices across build, deploy, and operate phases
Who you're
* Senior experience in security consulting, product security, or application security
* Strong background in online and digital platforms (web, mobile, APIs, e‑commerce)
* Proven ability to review and challenge technical designs and architectures
* Strong understanding of DevSecOps and modern CI/CD practices
* Hands‑on knowledge of Azure cloud security
What's in it for you
* 20% colleague discount across all M&S products and many third‑party brands for you and a member of your household after completing the probationary period
* Competitive holiday entitlement with the potential to buy extra holiday days
* Discretionary bonus schemes awarded based on performance
* A generous Defined Contribution Pension Scheme and Life Assurance
* A dedicated welcome with tailored induction and training programmes to develop your skills
* Perks and discounts via the M&S Choices portal to maximise financial and personal wellbeing
* Industry‑leading parental, adoption, and neonatal policies providing support and flexibility for families
* Wellbeing support for all colleagues, including 24/7 Virtual GP and PAM Assist
* A charity volunteer day to support your passion through a dedicated day away from work
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