Principal Software Engineer – Supply Chain Transformation

MARKS&SPENCER; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Job summary

Marks & Spencer (M&S) Software Engineering is seeking a Principal Software Engineer to drive modernization of mission-critical warehouse systems. You will lead cross-functional teams across Supply Chain & Logistics, shaping architecture, design, and delivery.

The role demands senior leadership, strong coding discipline, and a focus on scalable, secure software. You will collaborate with senior tech and product leaders, champion best practices in CI/CD, observability and DevOps, and mentor

Qualifications

• Specialist in clean code and implementation of design patterns.
• Depth of knowledge in Information Security with embedded controls.
• Ability to lead system design conversations for complex, high-risk projects.
• Influence senior engineers and non-technical stakeholders effectively.
• Strong communication across audiences and leadership.

Responsibilities

• Lead design to operations and launch of core features or programmes.
• Drive technical direction and inform technology and product investments.
• Champion engineering excellence and Communities of Practice.
• Mentor senior engineering staff across the landscape.
• Promote CI/CD, DevOps, and reliable operational practices.

Skills

Clean code

System design

Cloud computing

DevOps

Observability

CI/CD

Performance engineering

Tools

Kubernetes

Dynatrace

Kafka

Azure

Micronaut

Job description

Marks & Spencer (M&S) Software Engineering is seeking a Principal Software Engineer to drive modernization of mission-critical warehouse systems. You will lead cross-functional teams across Supply Chain & Logistics, shaping architecture, design, and delivery.

The role demands senior leadership, strong coding discipline, and a focus on scalable, secure software. You will collaborate with senior tech and product leaders, champion best practices in CI/CD, observability and DevOps, and mentor