Principal Software Engineer, Customer Platform

Marks and Spencer; Greater London; On-site; GBP 90,000 - 140,000; Full time

Benefits offered by this job

20% colleague discount

Holiday allowance

Discretionary bonus

Job summary

Marks & Spencer is seeking a passionate Principal Software Engineer to join the Customer Platform team, driving modernisation of mission-critical systems as we scale. You will collaborate with cross-functional teams to design, build, and maintain software powering our warehouse operations.

Reporting to the Senior Head of Software Engineering, you will lead by example in engineering excellence, advocate for clean code, and mentor senior engineers across the landscape, fostering innovation and

Qualifications

• Specialist in clean code and design patterns.
• Security-aware design with embedded controls.
• Ability to lead complex system design discussions.
• Experience with cloud, containers and automation.

Responsibilities

• Lead technical excellence from design to operations and launch of core product features or strategic programmes.
• Drive technical direction and influence strategy on technology, product investments, and team setup.
• Champion Communities of Practice to establish engineering excellence.
• Mentor senior engineers and promote continuous improvement across the landscape.
• Drive DevOps practices to automate product development and ownership.
• Align engineering and product leadership with strategic roadmaps.

Skills

Clean code

Design patterns

Information security

System design

Cloud computing

Kubernetes

Observability

Performance engineering

DevOps

Leadership

Tools

New Relic

Dynatrace

SQL Server

MongoDB

Job description

Marks & Spencer is seeking a passionate Principal Software Engineer to join the Customer Platform team, driving modernisation of mission-critical systems as we scale. You will collaborate with cross-functional teams to design, build, and maintain software powering our warehouse operations.

Reporting to the Senior Head of Software Engineering, you will lead by example in engineering excellence, advocate for clean code, and mentor senior engineers across the landscape, fostering innovation and