M365 Architect

Proactive Appointments; City Of London; Sur place; GBP 90 000 - 130 000; Plein temps

Résumé du poste

Proactive Appointments seeks an experienced Microsoft 365 Architecture professional to lead messaging and collaboration architecture across a large enterprise. You will shape the technical roadmap for Exchange Online, Teams, Purview, and related services, while ensuring secure, scalable designs.

The role balances architecture strategy with hands-on delivery, guiding complex migrations and designing secure-by-design solutions.

Responsabilités

• Define the strategic roadmap for Microsoft 365 messaging and collaboration services.
• Develop enterprise reference architectures, technical standards and design patterns.
• Own the architectural direction for Exchange Online, Microsoft Teams, Microsoft Purview and related Microsoft 365 services.
• Evaluate emerging Microsoft technologies and define adoption strategies.
• Align technology roadmaps with business objectives and enterprise architecture principles.
• Produce high-level and low-level solution designs for complex Microsoft 365 programmes.
• Act as Design Authority for messaging and collaboration solutions.
• Provide architectural leadership across enterprise transformation and migration initiatives.
• Review and validate technical designs, ensuring alignment with security and architectural standards.
• Guide engineering teams through complex implementations and technical challenges.
• Define secure-by-design architecture across Microsoft 365 services.
• Lead architectural design for Microsoft Purview, Defender for Office 365 and enterprise email security solutions.
• Define governance frameworks covering information protection, DLP, retention and compliance.
• Own messaging security architecture, including Proofpoint integration, mail flow, SPF, DKIM and DMARC.
• Work closely with Cyber Security teams to embed Zero Trust principles and strengthen the security of collaboration platforms.
• Lead Microsoft 365 transformation and modernization initiatives.
• Define the architecture and adoption strategy for Microsoft 365 Copilot and emerging AI capabilities.
• Support secure enterprise AI integration and governance.
• Identify opportunities to improve collaboration services and the modern workplace experience.
• Influence technology investment decisions and long-term platform roadmaps.
• Build strong relationships with senior technology leaders and business stakeholders.

Description du poste

M365 Architect

Inside IR35 - 4 days onsite

We are working with a leading organisation to recruit an experienced Microsoft 365 Messaging & Collaboration Architect to provide architectural leadership across its enterprise Microsoft 365 environment.

This is an excellent opportunity for an experienced Solution or Enterprise Architect with a strong technical background in Microsoft 365, particularly Exchange Online, Microsoft Teams, Microsoft Purview and enterprise messaging security.

You will be responsible for defining the architectural strategy, technical roadmap and design standards for messaging and collaboration services, ensuring solutions are secure, scalable, resilient and aligned with wider business objectives.

Although architecture-led, this role requires someone who remains technically credible and hands-on, with the ability to challenge designs, make complex technical decisions and provide practical engineering guidance.

Key Responsibilities

Enterprise Architecture & Strategy

• Define the strategic roadmap for Microsoft 365 messaging and collaboration services.
• Develop enterprise reference architectures, technical standards and design patterns.
• Own the architectural direction for Exchange Online, Microsoft Teams, Microsoft Purview and related Microsoft 365 services.
• Evaluate emerging Microsoft technologies and define adoption strategies.
• Align technology roadmaps with business objectives and enterprise architecture principles.

Solution Architecture & Technical Leadership

• Produce high-level and low-level solution designs for complex Microsoft 365 programmes.
• Act as Design Authority for messaging and collaboration solutions.
• Provide architectural leadership across enterprise transformation and migration initiatives.
• Review and validate technical designs, ensuring alignment with security and architectural standards.
• Guide engineering teams through complex implementations and technical challenges.

Security, Governance & Compliance

• Define secure-by-design architecture across Microsoft 365 services.
• Lead architectural design for Microsoft Purview, Defender for Office 365 and enterprise email security solutions.
• Define governance frameworks covering information protection, DLP, retention and compliance.
• Own messaging security architecture, including Proofpoint integration, mail flow, SPF, DKIM and DMARC.
• Work closely with Cyber Security teams to embed Zero Trust principles and strengthen the security of collaboration platforms.

Transformation & Innovation

• Lead Microsoft 365 transformation and modernization initiatives.
• Define the architecture and adoption strategy for Microsoft 365 Copilot and emerging AI capabilities.
• Support secure enterprise AI integration and governance.
• Identify opportunities to improve collaboration services and the modern workplace experience.
• Influence technology investment decisions and long-term platform roadmaps.

Stakeholder Engagement & Governance

• Build strong relationships with senior technology leaders and business stakeholders.
• Work across Enterprise Architecture, Cyber Security, Identity, Infrastructure a