Senior Identity Infrastructure Engineer – AD & PKI (Onsite)

LA International

Manchester

On-site

GBP 83,000 - 109,000

Full time

14 days+

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Job summary

LA International is seeking an experienced Senior Identity Infrastructure Engineer to support and maintain core identity infrastructure platforms underpinning the organisation's IDAM services. The role focuses on AD, PKI, DNS, GPO, and authentication infrastructure with L2/L3 operational support in a secure facility in Manchester or Inverness.

The position requires deep expertise in Microsoft Active Directory, PKI, and enterprise identity technologies to ensure availability, resilience, and

Qualifications

Must have strong identity infrastructure experience.
Experience with AD, PKI, DNS, GPO and authentication services.
Ability to provide L2/L3 operational support.

Responsibilities

Administer and maintain enterprise Active Directory forests, domains, and domain controllers.
Manage AD Sites and Services, replication topology, trusts, and directory services infrastructure.
Administer AD-integrated DNS and support authentication services across the enterprise.
Manage and maintain Group Policy architecture, including policy design and troubleshooting.
Support AD backup, recovery, disaster recovery, and business continuity processes.
Monitor platform health, performance, security, and replication.
Support AD upgrades, migrations, and infrastructure improvements.
Implement AD security hardening standards and privileged access controls.