Lead IT Systems Administrator

Job in Greater London, London, Greater London, W1B, England, UK

Listing for: Harnham

Part Time position
Listed on 2026-02-25

Job specializations:

IT/Tech
IT Support, IT Business Analyst

Location: Greater London

Hybrid - 2-3 days a week in office (London, Liverpool Street)

Join a high-growth UK banking business supporting 200+ fintech partners through Banking-as-a-Service infrastructure. This is a key role in building a modern, automated IT function with strong operational resilience as the UK organisation scales rapidly.

The role

As Lead IT Systems Administrator, you ll take full ownership of internal IT systems and the Atlassian environment, with a strong focus on automation, access management, incident processes, and SSO. You ll lead a small Sys Admin team and work closely with Engineering and SRE.

What you ll do

Own Atlassian Cloud / Jira Service Management (workflows, rules, automations)
Design and improve incident management + alerting processes in JSM
Automate joiner/mover/leaver workflows (
JSM + Entra )
Build automated access audits, reviews, and recertification
Create reporting/dashboards for CIO + Board
Drive improvements in operational resilience and IT processes

What we re looking for

Strong hands-on Atlassian/JSM knowledge (beyond admin basics)
Proven experience building automation from scratch
Proactive, high-ownership operator with strong comms
Comfortable in scale-up and/or regulated environments
In-person technical (JSM rules/automation + Atlassian)

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