Senior Identity Platform Engineer – Hybrid, Scale Secure Auth

Marks and Spencer; City Of London; Hybrid; GBP 60,000 - 85,000; Full time

Job summary

A leading retailer in the United Kingdom is seeking a Senior Software Engineer to join their dynamic M&S Identity team. You will be responsible for developing secure and scalable authentication solutions for millions of customers and colleagues. The ideal candidate will have experience with distributed systems, JVM-based languages like Kotlin, and a strong grasp of cloud environments. This role offers competitive benefits and the opportunity to work in a collaborative environment, driving innovation and quality in software engineering.

Benefits

20% colleague discount on M&S products

Competitive holiday allowance

Discretionary bonus schemes

Strong pension and life assurance

Tailored induction and training

Exclusive perks and savings

Market-leading family policies

24/7 wellbeing support

One paid volunteer day a year

Qualifications

• Experience building and scaling distributed systems, ideally serving millions of users.
• Good knowledge in one or more JVM-based languages (ideally Kotlin with Micronaut).
• Proven experience in DevOps practices, including running and operating what you build.

Responsibilities

• Build and evolve secure, scalable authentication experiences.
• Take end-to-end ownership of features, from design to monitoring.
• Collaborate closely with Product Managers, Designers, and Engineers.

Skills

Distributed systems

JVM-based languages

DevOps practices

CI/CD pipelines

Cloud environments

Identity standards

Tools

Java

Spring

Micronaut

React

Azure Cloud

Job description

A leading retailer in the United Kingdom is seeking a Senior Software Engineer to join their dynamic M&S Identity team. You will be responsible for developing secure and scalable authentication solutions for millions of customers and colleagues. The ideal candidate will have experience with distributed systems, JVM-based languages like Kotlin, and a strong grasp of cloud environments. This role offers competitive benefits and the opportunity to work in a collaborative environment, driving innovation and quality in software engineering.