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IT Core Systems Engineer

Mountain Warehouse | London, United Kingdom | Posted June 01, 2026

Position Overview

Description

We are looking for an experienced Core Systems Engineer to help design, deliver, and support infrastructure platforms that are highly available, secure, and resilient.


This role is focused on infrastructure modernisation and project delivery, covering hybrid infrastructure, identity services, datacentre operations, resilience, and platform improvement initiatives. You will play a key role in shaping the future direction of our core systems as we continue evolving towards a more modern, secure, and cloud-aligned technology estate.


While there is an element of BAU support and operational ownership, the role is primarily centred around delivering strategic infrastructure improvements and engineering-led projects.



Key Responsibilities

Delivering projects to improve identity, infrastructure, and core systems architecture, following modern security and operational best practices


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