> Markdown version of [/jobs/ext/4666383-senior-it-systems-engineer](https://www.wearedevelopers.com/jobs/ext/4666383-senior-it-systems-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior IT Systems Engineer - **Company:** Robert Half International Inc. - **Location:** London, United Kingdom - **Experience:** Expert - **Contract:** Temporary contract - **Skills:** Microsoft Windows, Bash Shell, BitLocker Drive Encryption, System Configuration, Multi-Factor Authentication, Identity and Access Management, JSON, Windows PowerShell, Azure Active Directory, Single Sign-On, Software Deployment, Systems Integration, Scripting, Microsoft InTune, Information Technology, Deployment Automation, Apple Business Manager, Patch Management, Casper Suite, Gsuite, Restful APIs - **Published:** November 11, 2026 - **Apply:** https://www.careerboard.com/gb/en/find-jobs-in-United-Kingdom/-3E5AF0F0C99E697F56/ ## About the Role * The Senior IT Systems Engineer will have 3-5+ years' experience in Desktop Engineering, Endpoint Engineering, Systems Administration or advanced IT Support. * Strong hands-on macOS administration and troubleshooting experience within a corporate environment. * Good Windows 11 administration and troubleshooting experience. * Experience with enterprise endpoint management and MDM platforms. * Knowledge of Apple Business Manager and Automated Device Enrolment. * Experience with Microsoft Entra ID and Windows Autopilot. * Strong Scripting capabilities using Bash/Shell and PowerShell. * Understanding of endpoint security, patch management, encryption, identity management, SSO and MFA. * Experience managing software deployment, device configuration and endpoint compliance. * Google Workspace administration experience would be advantageous. * Experience with Kandji, Jamf or Microsoft Intune would be beneficial. * Knowledge of REST APIs and JSON for IT integrations and automation would be desirable. * Excellent troubleshooting, communication and problem-solving skills, with the ability to work independently and support users across different locations and time zones. ## Description * The Senior IT Systems Engineer will provide hands-on technical support to employees across the UK and international offices, taking ownership of incidents and service requests through to resolution. * Administer, manage and continuously improve the organisation's predominantly macOS endpoint environment. * Manage endpoint configuration, MDM policies, Apple Business Manager, Automated Device Enrolment, software deployment and device compliance. * Support and administer Windows 11 devices, including Microsoft Entra ID, Windows Autopilot, BitLocker and endpoint security. * Develop and maintain Bash/Shell and PowerShell scripts to automate provisioning, configuration, troubleshooting and routine IT processes. * Manage endpoint security, operating system updates, application patching and compliance. * Package, test, deploy and maintain endpoint applications. * Manage the complete device life cycle, from procurement and deployment through to recovery, secure wiping and retirement. * Support employee onboarding and offboarding, including international equipment coordination. * Identify recurring technical issues and implement permanent fixes, automation and self-service solutions. * Work closely with international IT teams to establish consistent endpoint standards and improve global support processes. * Maintain technical documentation, configuration standards and support procedures. * Contribute to endpoint engineering projects, security initiatives, operating system upgrades and technology improvements.