Infrastructure Engineer-Outside IR35

Infrastructure Engineer-Outside IR35

Contract Type:

Contractor

Location:

Hertfordshire

Industry:

IT

Contact Name:

Scott McCormick

Contact Phone:

+44 (0)20 7002 0253

Date Published:

09-Apr-2026

My client, a well known Retail business, is looking for a Senior Infrastructure Engineer with strong experience in identity modernisation, particularly around moving away from legacy directory services and helping shape a more secure, scalable, cloud first environment.

This is an initial 6 month contract, outside of IR35. It requires 2 days per week in the office.

This role is ideal for someone who has hands-on expertise in Active Directory rationalisation, legacy LDAP application migration, and the adoption of modern authentication standards such as SAML, OAuth2 and OpenID Connect.

Key Experience Required

  • Identity & Directory Modernisation (Core Focus)
  • Strong experience with Active Directory deprecation, consolidation, and domain dependency reduction
  • Proven track record of assessing and migrating LDAP-based authentication flows to modern identity methods such as SAML, OAuth2 or OpenID Connect
  • Solid understanding of Entra Domain Services (EDS) for supporting legacy workloads without the need for full AD infrastructure
  • Experience building identity automation solutions to improve JML processes, reduce technical debt, and remove legacy directory reliance
  • Microsoft Infrastructure
  • Strong background across Windows Server, Entra ID, GPO transition work, and identity lifecycle automation
  • Azure Platform Engineering

Experience deploying and supporting core Azure services, including:

  • Azure VMs
  • Container Instances
  • Function Apps
  • Virtual WAN
  • Azure Firewall
  • Automation Accounts
  • Scripting & Automation
  • Advanced PowerShell skills with experience automating workflows, reporting, system administration, and identity processes
  • Good Python scripting capability for integrations, data handling, and tooling
  • Experience working with REST APIs across cloud and on-prem environments
  • DevOps & Infrastructure as Code
  • Exposure to Azure DevOps, GitLab, or similar CI/CD tooling
  • Working knowledge of Terraform, ideally in live/production environments

Additional / Nice-to-Have Skills

  • Google Workspace support or integrations
  • VMware vCenter
  • Intermediate Linux
  • Basic MSSQL
  • Citrix, Intune, and thin/edge client technologies (e.g. Wyse / IGEL)
  • Understanding of Zero Trust, Conditional Access, and core networking fundamentals such as DNS, DHCP, PKI, and TCP/IP

The Opportunity

You’ll join a strong infrastructure team supporting the move from a hybrid setup to a cloud-first, identity-modernised environment. The role combines proactive engineering, legacy platform reduction, and some reactive support / on-call responsibilities.

We’re looking for someone who is:

  • Comfortable working through complex identity transitions
  • Calm under pressure
  • Strong with stakeholders and able to explain technical concepts clearly

...

Apply Now
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