Senior Infrastructure Engineer

Company: 83Zero Ltd
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Job Description:

Senior Infrastructure Engineer – Modern Workplace & Security

Gloucestershire (Hybrid)

Looking for a genuinely strong Microsoft Modern Workplace & Security Engineer who wants to work across complex customer environments, influence technical direction, and operate as a trusted technical advisor.

This is a hands-on senior engineering role with a strong focus on:

  • Microsoft 365 architecture & optimisation
  • Entra ID & Conditional Access
  • Intune & Endpoint Management
  • Microsoft Security stack (Defender/Purview/Sentinel)
  • Zero Trust & secure design principles
  • Tenant remediation & standardisation
  • Copilot, SharePoint & collaboration tooling
  • PowerShell & automation
  • Customer-facing consulting & technical leadership

You’ll be:

  • Leading complex technical projects & escalations
  • Designing secure Microsoft environments
  • Improving engineering standards & service quality
  • Mentoring engineers & sharing best practice
  • Supporting migrations & modern workplace transformations
  • Working directly with customers at both business & technical levels

Ideal background:

  • Strong Microsoft 365 engineering experience
  • Entra ID/Intune/Endpoint Security expertise
  • Experience in MSP or multi-customer environments
  • Microsoft security tooling experienceComfortable leading conversations with customers
  • MS102/MD102/SC/AZ certifications highly desirable

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Posted: October 31st, 2026