Infrastructure Engineer (macOS)

Addition; Greater London; On-site; GBP 65,000 - 90,000; Full time

Job summary

Addition is seeking a skilled Mac end-user computing specialist to own the macOS estate across multiple UK sites. You will design, implement and continually optimize secure, reliable macOS environments used by thousands of colleagues.

You will manage macOS devices with Jamf Pro, collaborate with Technical Architects and engineers, and support Windows and mobile platforms where needed. You will deliver changes through formal change control and promote best-practice security across the end-user

Qualifications

• Proven experience managing macOS at scale.
• Experience with Jamf Pro for device management.
• SC security clearance required.
• Strong troubleshooting across complex infra environments.

Responsibilities

• Take technical ownership of the macOS environment.
• Design and deliver macOS solutions across end-user devices.
• Manage devices using Jamf Pro and MDM tooling.
• Collaborate with Architects and engineers to develop end-user computing platform.
• Provide root cause analysis for incidents.
• Produce design and infrastructure documentation for macOS solutions.
• Deliver changes through formal change control.

Skills

macOS admin

Jamf Pro

Active Directory

SCCM

Group Policy

Workspace ONE

Troubleshooting

Security focus

Documentation

Change control

Collaboration

Job description

We’re working with a major public-sector organisation delivering large-scale digital transformation across critical UK services. This role will help shape and improve the end-user technology used by thousands of people, with a particular focus on building a secure, reliable and modern macOS estate.

Role Overview:

• Location: London, York, Manchester, Bristol, Glasgow, Newcastle, Norwich
• Industry: Public Sector / Government
• SC security clearance is required for the role

What You’ll Be Doing:

• Take technical ownership of the macOS environment, designing and delivering solutions across end-user devices.
• Manage and enhance macOS devices using Jamf Pro and wider mobile device management tooling.
• Work closely with Technical Architects, Principal Engineers and other infrastructure specialists to develop the end-user computing platform.
• Act as a technical escalation point for live services, investigating complex issues and carrying out root cause analysis.
• Produce clear technical design, build and infrastructure documentation for macOS solutions.
• Support Windows and mobile environments where required, helping wider engineering and first-line support teams resolve technical challenges.
• Maintain and continuously improve device platforms, including monitoring, alerting and preventative maintenance.
• Deliver controlled infrastructure changes while following established change management processes.
• Share technical knowledge across the team and contribute to a collaborative, multi-disciplinary engineering environment.

Main Skills Needed:

• Strong commercial experience managing and administering macOS environments at scale.
• Hands-on expertise with Jamf Pro for macOS device management.
• Good knowledge of Windows environments, including Active Directory, SCCM and Group Policy.
• Experience managing mobile devices using platforms such as Workspace ONE / AirWatch.
• Strong troubleshooting and problem-solving skills, particularly across complex infrastructure environments.
• Understanding of technical security and how security requirements influence end-user device design and operation.
• Experience supporting infrastructure services across a large user base.
• Knowledge of infrastructure monitoring, alerting and preventative maintenance.
• Experience delivering planned infrastructure changes within formal change control processes.
• Comfortable collaborating across technical teams and sharing knowledge with other engineers.
• SC security clearance is required for the role.

What’s in It for You:

• Work on digital infrastructure supporting high-profile services used across UK government.
• Play a key role in shaping and improving a large-scale macOS and end-user computing environment.
• Collaborate with experienced Architects, Principal Engineers and multidisciplinary technology teams.
• Build your expertise across macOS, Windows, mobile and modern device-management technologies.
• Join a major digital transformation programme where your technical decisions can have genuine nationwide impact.
• Choice of several UK office locations, including London, Manchester, Bristol, Glasgow, Newcastle, York and Norwich.

Big plans. Big impact. Ready to be part of it?

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.