Enterprise SharePoint & Power Platform Architect — BAU Lead

Project description
We are seeking an experienced, hands-on Microsoft 365 / Power Platform Solution Architect to lead the final implementation, transition and ongoing technical ownership of an enterprise Document Management and Workflow Automation solution built on Microsoft Azure, SharePoint Online and Power Platform.

The solution is currently being implemented with an external Microsoft technology partner and is approaching the Business-as-Usual (BAU) phase.

The successful candidate will be responsible for taking over the existing environment, ensuring a smooth knowledge transfer, completing outstanding implementation activities and establishing a stable, secure and scalable operating model.

This role requires a combination of strong solution architecture expertise, hands-on technical capabilities and delivery leadership, with the ability to independently manage the solution and support future enhancements.
Responsibilities
1. Solution Architecture & Technical Leadership Take end-to-end technical ownership of the existing Document Management and Workflow Automation solution.

Review and understand the current architecture, configurations, integrations and dependencies across Azure, SharePoint Online and Power Platform.

Lead the completion of outstanding implementation activities and ensure solution readiness for BAU.Assess the existing solution for performance, scalability, maintainability, security and operational resilience.

Define and maintain solution architecture, technical standards and best practices.

Provide technical direction and hands-on support for troubleshooting, enhancements and future development.
2. Project Transition & BAU Readiness Lead technical knowledge transfer and transition activities from the existing Microsoft implementation partner.

Review existing technical documentation, deployment processes, configurations and automation scripts.

Identify and address technical gaps, risks and dependencies before BAU handover.

Establish operational support procedures, monitoring, troubleshooting and incident resolution processes.

Ensure the internal team has the required knowledge, documentation and access to independently maintain and enhance the solution.

Support production stabilisation and continuous improvement following transition.
3. SharePoint Online Architecture & Configuration Strong understanding of SharePoint Online architecture, site structures, permissions and governance.

Advanced experience configuring document libraries, metadata, content types and document management capabilities.

Experience working with SharePoint managed properties, search schemas and metadata mappings.

Ability to develop, troubleshoot and optimise Keyword Query Language (KQL) queries.

Hands-on experience with PnP Modern Search v4, including search configuration and customisation.

Understand SharePoint limitations, particularly when used as a data source for Power Platform applications.

Optimise SharePoint document storage, retrieval, search and workflow integration.
4. Power Platform Development & Architecture Design, develop, maintain and troubleshoot complex Power Automate workflows, including:

Parent-child flows and reusable workflow components.

Flows triggered by Power Apps Canvas Apps.

Scheduled and recurrence-based flows.

Data-change-triggered automation.

Error handling, exception management and workflow optimisation.

Develop and maintain Power Apps Canvas Apps, including:

Solution-based Canvas Apps.

Custom SharePoint forms.

Integration with SharePoint libraries and lists.

Understand Power Platform architecture, platform limitations, delegation constraints and performance considerations.

Manage Power Platform environments, security roles, connection references and environment variables.

Ensure appropriate use…