Senior Backend Engineer – Java & CCaaS Integrations

Marks & Spencer plc (UK) is seeking a backend-focused Senior Software Engineer to design, build and operate services powering our Contact Centre. You will contribute across API design, CCaaS integrations with Zendesk and Twilio, and self-service experiences for customers and staff.

The role emphasizes strong Java backend development and collaboration with product, architecture and security teams. You will take ownership from discovery through delivery and live operation, balancing customer