Senior Infrastructure Engineer

83zero Ltd; Altofts; Hybrid; GBP 66,000 - 106,000; Full time

Job summary

83zero Ltd is seeking a Senior Infrastructure Engineer to lead Microsoft Modern Workplace and security initiatives in a Gloucestershire hybrid team. You will architect Microsoft 365 environments, manage Entra ID and Intune, and drive secure design principles across complex customer setups.

The role emphasizes customer-facing consulting, technical leadership, and hands-on engineering across Defender, Purview, and Sentinel tools, with a focus on zero-trust and standardisation.

Qualifications

• Proven experience designing and supporting Microsoft Modern Workplace environments.
• Strong knowledge of Entra ID, Intune and endpoint security architectures.
• Experience working in MSP or multi-customer environments is required.
• Familiarity with Microsoft security tooling and Defender/Sentinel is a plus.

Responsibilities

• Lead complex technical projects and escalations with customers.
• Design secure Microsoft environments and optimize configurations.
• Improve engineering standards and service quality across engagements.
• Mentor engineers and share best practices.
• Support migrations and modern workplace transformations.
• Engage with customers at business and technical levels.

Skills

Microsoft 365 engineering

Entra ID

Intune

Endpoint security

MSP experience

Customer facing leadership

Tools

Copilot

Microsoft 365

PowerShell

SharePoint

Office 365

DevOps

Job description

Salary: £66,000 - 106,000 per year

Requirements

• Strong Microsoft 365 engineering experience
• Expertise in Entra ID, Intune, and endpoint security
• Experience in MSP or multi-customer environments
• Experience with Microsoft security tooling
• Comfortable leading conversations with customers
• Microsoft MS-102, MD-102, SC, and AZ certifications are highly desirable

Responsibilities

• Lead complex technical projects and escalations
• Design secure Microsoft environments
• Improve engineering standards and service quality
• Mentor engineers and share best practice
• Support migrations and modern workplace transformations
• Work directly with customers at both business and technical levels

Technologies

• Copilot
• Support
• Microsoft 365
• PowerShell
• Security
• SharePoint
• Office 365
• DevOps

More

We are hiring a Senior Infrastructure Engineer for our Gloucestershire hybrid team. This is a hands-on senior engineering role focused on Microsoft Modern Workplace and Security, including Microsoft 365 architecture and optimisation, Entra ID and Conditional Access, Intune and Endpoint Management, Microsoft Security tools such as Defender, Purview and Sentinel, Zero Trust and secure design principles, tenant remediation and standardisation, Copilot, SharePoint and collaboration tooling, PowerShell and automation, and customer-facing consulting and technical leadership. We work across complex customer environments, where you will influence technical direction and operate as a trusted technical advisor.

last updated 40 week of 2026