Senior Identity Security Engineer (Active Directory, Entra ID & PKI)

fsp • Greater Glasgow Area

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AI Summary

FSP is seeking a Senior Identity Security Engineer to design, implement and enhance large-scale identity environments across Microsoft Active Directory, Entra ID and PKI/ADCS. You will architect secure hybrid identity platforms, engineer certificate services at scale, lead migrations and legacy exits, and drive adoption of passwordless modern authentication. The role requires deep AD/Entra/PKI expertise in complex environments, strong automation skills with PowerShell and IaC, and the ability to advise clients on IAM best practices and regulatory standards.

Key Highlights

Senior role combining hands-on identity engineering with leadership in security design across on-premises, hybrid and cloud environments

Core focus on Microsoft Active Directory, Entra ID and PKI/ADCS in large, complex environments

Drive adoption of passwordless and modern authentication including Windows Hello, passkeys and FIDO2

Plan and lead safe migrations and legacy exits including AD consolidation and ADFS/MIM retirement

Work with a long-standing Microsoft partner holding ISO27001, ISO9001 (UKAS) and CREST accreditations

Visa sponsorship available for some roles, subject to eligibility and business requirements

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Technical Skills Required

Active Directory Microsoft Entra ID PKI/ADCS

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Benefits & Perks

Hybrid working

Competitive salary and an excellent benefits package

Industry leading coaching and mentoring

Collaborative and supportive environment to grow and develop your career

Job Description

Role Overview

We are seeking a Senior Identity Security Engineer to design, implement and enhance large‑scale identity environments across Microsoft Active Directory, Entra ID, PKI/ADCS and modern hybrid platforms. This role combines hands‑on engineering with leadership in security design, implementation and assessment, requiring someone who can resolve complex identity challenges end‑to‑end and deliver robust, high‑impact solutions.

You will work closely with engineering, architecture and operational teams, across a range of sectors, to deliver secure, resilient identity and certificate services across on‑premises, hybrid and cloud environments.

Responsibilities

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