Principal Systems Architect - M365 and EUC

Salary: £65,000 - 105,000 per year

Requirements:

• We require 7+ years of IT experience with a strong Microsoft 365 engineering background.
• We require deep expertise in Microsoft 365 services, including Exchange, Teams, SharePoint Online, and OneDrive.
• We require strong knowledge of Entra ID, identity, authentication, and compliance features.
• We require advanced PowerShell scripting and automation experience.
• We require experience leading large-scale Microsoft 365 migrations.
• We require an understanding of governance and change management processes.
• We require experience with Intune and endpoint management.
• We require experience working in global enterprise environments in similar roles.
• We require a bachelors degree in IT or equivalent experience.
• We value Microsoft certifications such as Enterprise Administrator Expert.
• We value experience using migration tools like Quest or ShareGate.
• We value knowledge of hybrid environments and Zero Trust models.
• We value exposure to Graph API or other scripting languages.
• We value strong communication and stakeholder management skills.
• We value excellent problem-solving abilities.
• We value a self-motivated and adaptable work style.
• We value a customer-focused mindset.
• We value ownership and accountability in delivery.

Responsibilities:

• We define and evolve the architecture for Microsoft 365 services, including Exchange Online, Teams, SharePoint Online, and OneDrive.
• We establish tenant-wide policies for data protection, retention, and regulatory compliance.
• We administer and troubleshoot Microsoft 365 services to ensure performance and availability.
• We act as the subject matter expert and escalation point for complex issues, including root cause analysis.
• We lead tenant-to-tenant migrations and coordinate global delivery.
• We develop PowerShell automation and improve reporting and efficiency.
• We maintain runbooks and documentation for operational consistency.
• We work with global stakeholders and provide technical leadership.

Technologies:

• API
• Support
• Microsoft 365
• PowerShell
• SharePoint
• Office 365
• Architect
• Incident Management
• Network
• Security

More:

Finastra is a global leader in financial services software, dedicated to expanding access to financial services and shaping whats next for the industry. Our technology powers mission-critical solutions across Lending, Payments, and Universal Banking, supporting over 7,000 customers, including 80% of the worlds top 50 banks, in more than 110 countries. This is a full-time role based in London. We offer a wide range of employee incentives worldwide, including unlimited vacation subject to local regulations and business priorities, hybrid working, wellbeing support, medical, life and disability insurance, retirement plans, paid volunteering time, donation matching, inclusion communities, learning and career development resources, and a global recognition program. Specific benefits may vary by location, and we foster an inclusive environment where everyone can be themselves and contribute their unique perspectives.

last updated 35 week of 2026