Senior Systems Administrator - Healthcare Cloud & Security

Abtrace Limited; Greater London; Hybrid; GBP 55,000 - 75,000; Full time

Benefits offered by this job

Private pension

Maternity/Paternity leave

Paddington office (hybrid)

Laptop provided

Job summary

Abtrace Limited in London is seeking a Systems Administrator to own our internal infrastructure, identity and endpoint estate, and to keep the internal support pipeline moving. This hands-on role covers AWS, Microsoft 365, Intune, Jamf/Kandji, and automation across Windows and macOS.

You will triage tickets in Jira, ensure security/compliance, and contribute to disaster recovery and runbooks while mentoring junior staff.

Qualifications

• 5 or more years in systems administration, infrastructure or IT engineering.
• Production experience administering AWS.
• Strong Microsoft 365 and Entra ID administration, including conditional access.
• Endpoint management at scale with Intune and Jamf, Kandji or a comparable macOS MDM.
• Scripting and automation in PowerShell, Bash or Python.
• Solid networking fundamentals: DNS, DHCP, VPN, TLS and firewall configuration.
• Genuine willingness to hold both ends of the role, taking routine unlock seriously.
• Right to work in the UK.

Responsibilities

• Own our AWS environment across development and production: IAM, networking, EC2 and managed services, patch compliance.
• Maintain and improve backup, restore testing and disaster recovery, including documented and rehearsed recovery procedures
• Build and maintain automation in PowerShell, Bash or Python to remove manual work from routine administration
• Manage internal networking, DNS, VPN and firewall configuration
• Own Microsoft 365 and Entra ID: conditional access policy, privileged role design, licensing, Exchange Online, Teams and SharePoint permissions
• Apply and enforce least privilege, and run the periodic access review cycle
• Manage SSO and provisioning integrations for internal SaaS applications
• Own device management across a mixed Windows and macOS estate in Microsoft Intune and Kandji: baseline configuration, hardening, patching, encryption and application deployment
• Maintain joiner, mover and leaver processes end to end, including timely revocation and device recovery or wipe on exit
• Keep the asset register accurate and audit ready
• Action the internal support queue in Jira day to day: triage, prioritise, resolve and keep tickets updated
• Work to agreed response and resolution SLAs and flag any ticket at risk of breach
• Handle access requests directly: password and MFA resets, account lockouts, licence and permission changes, mailbox and distribution list administration
• Reduce recurring ticket volume through automation, self-service and better defaults
• Maintain runbooks and documentation to a standard that allows work to be delegated as the team grows

Skills

Systems administration

AWS

Microsoft 365

Intune

Jamf

Kandji

Scripting

Networking

Security awareness

Tools

AWS

Microsoft 365

Entra ID

Intune

Jamf

Kandji

Terraform

Jira

Job description

Abtrace Limited in London is seeking a Systems Administrator to own our internal infrastructure, identity and endpoint estate, and to keep the internal support pipeline moving. This hands-on role covers AWS, Microsoft 365, Intune, Jamf/Kandji, and automation across Windows and macOS.

You will triage tickets in Jira, ensure security/compliance, and contribute to disaster recovery and runbooks while mentoring junior staff.