Senior Microsoft 365 Engineer

At NewDay, we're on a mission to help people move forward with credit. Technology plays a critical role in delivering that mission, and we're looking for a Senior Microsoft 365 Engineer to help shape and evolve our modern workplace platform. 

This is a hands-on engineering role responsible for designing, delivering and optimising Microsoft 365 services across the business. You'll work across identity, endpoint management, collaboration, security and AI-powered efficiency tools, ensuring our colleagues have a secure, reliable and modern digital workplace experience. 

You'll be joining a team that values engineering excellence, automation, continuous improvement and innovation, helping NewDay maximise the value of its Microsoft technology investments. 

What You'll Be Doing 

Design & Engineering 

• Design, build and implement Microsoft 365 solutions aligned to business and technology requirements. 

• Lead the development and continuous improvement of NewDay's Modern Workplace capabilities. 

• Deliver solutions across Windows, macOS, iOS and Android devices, including both physical and virtual environments.

• Design and deploy endpoint management solutions using Microsoft Intune and related technologies. 

• Develop and maintain operating system deployment, upgrade and lifecycle management strategies. 

• Implement automated deployment and application packaging solutions. 

• Create reusable engineering patterns, automation and standards to improve service delivery and operational efficiency. 

Microsoft 365 Platform Ownership 

• Manage and enhance Microsoft 365 services, including: Microsoft 365 Apps, Intune, Exchange Online, SharePoint Online, OneDrive, Microsoft Teams, Microsoft Defender, Microsoft Purview, Microsoft Copilot, Power Platform (Power Automate, Power Pages, Power BI) 

• Support the deployment, monitoring and governance of Microsoft AI services, ensuring compliance with internal standards and policies. 

• Manage Microsoft Teams Direct Routing and associated telephony services. 

• Review platform licensing and identify optimisation and cost-saving opportunities. 

Security & Compliance 

• Manage Microsoft Defender configurations, including Attack Surface Reduction (ASR) rules and exclusions. 

• Implement and support Conditional Access policies and device-based access controls. 

• Support identity and access management across Active Directory, Microsoft Entra ID and Entra Connect. 

• Enhance Microsoft Purview capabilities, including Audit, Data Loss Prevention (DLP) and eDiscovery. 

• Ensure services align with security, compliance and governance requirements. 

Service Reliability & Continuous Improvement 

• Act as an escalation point for complex Microsoft service incidents and platform issues. 

• Monitor Microsoft service health and communicate business-impacting incidents to stakeholders. #

• Provide ongoing platform support, troubleshooting and optimisation. 

• Define and document operational standards and support processes. 

• Proactively identify opportunities to improve performance, resilience, automation and user experience. 

• Drive awareness of upcoming Microsoft product changes and ensure successful adoption across business and technology teams. 

What We're Looking For 

Essential Experience 

• Significant experience designing, implementing and supporting enterprise Microsoft 365 environments. 

• Strong expertise across Microsoft Intune, Microsoft Entra ID and Microsoft 365 administration. 

• Experience delivering Mobile Device Management (MDM) solutions across both Windows and macOS environments. 

• Strong understanding of Conditional Access, identity security and endpoint compliance controls. 

• Experience supporting Microsoft Teams, Exchange Online, SharePoint Online and OneDrive. 

• Deep knowledge of Microsoft Defender security capabilities. 

• Experience with Microsoft Purview, including Audit, DLP and eDiscovery. 

• Strong understanding of Active Directory, Group Policy, DNS and Entra Connect. 

• Experience with operating system deployment, device lifecycle management and endpoint engineering. 

• Proficiency in PowerShell and/or command-line scripting

• Experience with application packaging and automated software deployment. 

• Knowledge of networking, authentication, authorisation and cloud security concepts. 

• Experience working within Agile engineering environments using tools such as GitHub and Jira. 

• Excellent communication skills with the ability to engage both technical and non-technical stakeholders. 

Desirable Experience 

• Experience developing and managing Microsoft Copilot Agents. 

• SharePoint migration experience. 

• Experience with Dynamics 365. 

• Knowledge of Microsoft Backup and recovery services. 

• Experience deploying and supporting Microsoft Teams desk phones. 

• Familiarity with security frameworks such as CIS or NIST. 

• Microsoft certifications across Microsoft 365, Security or Modern Workplace technologies. 

Why Join NewDay? 

At NewDay, you'll help shape the future of workplace technology for one of the UK's leading FinTech businesses. You'll have the opportunity to work with the latest Microsoft technologies, including AI-powered productivity platforms, while contributing to a culture that values innovation, ownership and continuous improvement. 

If you're passionate about modern workplace engineering, endpoint management, security and Microsoft's evolving technology ecosystem, we'd love to hear from you.