Interim Lead Architect

Page Executive; Greater London; Hybrid; Confidential; Full time

Benefits offered by this job

Hybrid working (2/3 days)

Central London base

Job summary

Page Executive is seeking an Interim Lead Architect in Central London to drive D365 F&O implementations across partners, Microsoft, and internal teams. You will own architectural decisions, remediate the capture pipeline, and oversee the wider integration landscape including Dataverse and middleware.

The role requires deep experience with vendor leadership, audit-ready documentation, and a track record of turning around complex programmes in an enterprise setting.

Qualifications

• Two or more full-lifecycle D365 F&O implementations at enterprise scale.
• Deep AP/Procure-to-Pay and Document Intelligence expertise.
• Ability to read and assess extensions and ISV code.
• Integration architecture depth with Dataverse and middleware.
• Experience as design authority across vendors, including large SI.
• Comfort working under audit with precise documentation.

Responsibilities

• Own design decisions across implementation partner, support partner, Microsoft, and internal teams.
• Remediate capture pipeline issues and improve straight-through rate.
• Review partner estate for extensions, integrations, batch design, and workflow config.
• Diagnose and decide on repairs platform integration and wider architecture.
• Deliver technical delivery plan and manage single-person dependencies.
• Manage service updates, regression posture, and LCS telemetry as diagnostic tool.

Skills

D365 F&O

Architecture design

Vendor management

Data integration

Invoice capture

Middleware

Dataverse

Logic Apps

Power Platform

Tools

Dataverse

Logic Apps

Power Automate

Job description

About Our Client

This not-for-profit organisation operates as a mid-sized entity with a focus on delivering impactful services. Their technology team plays a vital role in supporting and advancing the organisation's mission through innovative solutions.

Job Description

• Interim Lead Architect with deep MS 365 Dynamics experience
• 6- 12 month Interim role

They will own:

• Single point of design decision-making across the implementation partner, support partner, Microsoft, and internal teams. Documented architecture decisions, enforced.
• Root-cause remediation of the capture pipeline: Document Intelligence configuration, vendor master data strategy, PO matching policy, header versus line capture design. Target is a step change in straight-through rate within two quarters.
• Independent review of the partner-delivered estate covering extensions, integrations, batch design, and workflow configuration. Findings will inform the commercial accountability position, so evidence discipline matters.
• Diagnosis and a fix-or-supersede decision on the failed repairs platform integration, plus the wider integration architecture (Dataverse, dual-write patterns, middleware).
• A defined set of technical prerequisites sits on the financial year-end audit path. This person owns their delivery through the technical delivery plan, including managing single-person dependencies in the current team.
• Service update cadence, regression posture for AP customisations, and LCS telemetry used as a working diagnostic tool.

The Successful Applicant

Key experience required for this Senior Interim role:

• Two or more full-lifecycle D365 F&O implementations at enterprise scale, at least one in a recovery, rescue, or post-go-live remediation context and experience of turning around a programme.
• Deep, current F&O accounts payable and procure-to-pay expertise, including Invoice Capture, Document Intelligence, and vendor invoice automation.
• Ability to read and critically assess extensions and ISV code, not just functional configuration.
• Integration architecture depth: Dataverse, dual-write, Logic Apps or equivalent middleware, and batch and performance diagnostics at high transaction volumes.
• Evidence of holding design authority across multiple vendors simultaneously, including at least one large SI, and the ability to describe how they made decisions stick without line authority over the vendors.
• Comfortable operating under audit and executive scrutiny, with the writing quality to match.

What's on Offer

• The role pays up to £950/day INSIDE IR35
• Based in Central London with hybrid working in place (2/3 days per week)