Job Description

Job title: Integration Architect

Contract: six months

Location: London (hybrid)

Job description

We are seeking an experienced SAP Integration Architect to play a critical role in the Landmark Programme, a major transformation initiative to:

Migrate from SAP ECC to SAP S/4HANA

Decouple non-finance capabilities from SAP

Enable full decommissioning of SAP ECC before 2030This programme addresses a highly complex legacy environment where SAP ECC has become tightly coupled with multiple business processes and systems, creating a bottleneck for change and innovation.

The Integration Architect will lead the design of a simplified, modular integration landscape that enables agility, reduces technical debt, and supports a modern, domain-driven architecture.

Key Objectives of the Role

Design and govern integration architecture across:o Legacy SAP ECC

o SAP S/4HANA (Finance core)

o Domain-driven business systems

Enable the decoupling strategy by:o Removing non-finance functionality from SAP

o Redirecting data flows to domain platforms or integration layers

Reduce complexity by transitioning from:o A highly coupled SAP-centric architecture

o To a modular, loosely coupled ecosystem

Support delivery of:o Integration Strategy

o Integration Architecture Design

o Interface Specifications & build oversight

What You'll Be Doing

Architecture & Design

Define the target integration architecture aligned to S/4HANA as the finance system of record.

Establish integration patterns (APIs, events, messaging) tailored to a decoupled landscape

Ensure adherence to programme guiding principles, including:o Minimum Viable Integration.

o Standard first, exception by design.

Decoupling & Transformation

Liaise with the other business transformation programmes that will need to into create new integration designs for removing non-finance capabilities from SAP ECC

Redesign outbound and inbound interfaces:o Repoint integrations to domain systems

o Reduce SAP's role as a central data distribution hub

Support the move towards:o Domain ownership of data

o Increased pace of change across business areas

Delivery & Governance

Own or contribute to key artefacts:o Integration Strategy

o Interface Specifications

o Non-functional requirements (performance, scalability, resilience)

Work across delivery phases:o Design → Build → Test → Deploy (SAP Activate aligned)

Provide technical oversight of:o Integration build and test activities

o Vendor-led delivery (multi-partner model)

Collaboration & Stakeholders

Work closely with:o Enterprise Architecture teams across M&S Digital and Tech.

o SAP functional teams (Finance, PTP, OTC, etc.)

o Domain system teams (Supply Chain, Product, Pricing)

Partner with system integrators and specialist vendors across the programme

Candidate Profile

Experience

Strong SAP integration experience across:o SAP ECC and SAP S/4HANA

Demonstrated experience in large-scale transformation programmes

Experience designing integration solutions in complex, highly integrated environments

Technical Skills

Deep understanding of:o Enterprise integration patterns (API, event-driven, messaging)

o Interface-based integration (IDocs, services, batch, etc.)

o Data flow and system decoupling strategies

Experience working with:o Multi-system landscapes (ERP + domain systems)

o Integration platforms and middleware

Architecture & Design Capability

Proven ability to:o Design scalable, modular integration architectures

o Simplify complex estates and reduce dependencies

Familiarity with:o Domain-driven / service-based architectures

Soft Skills

Strong stakeholder engagement and influencing skills

Ability to operate in multi-vendor, matrix environments

Commercially aware, outcome-driven decision making

Why Join This Programme?

Work on a business-critical transformation with a clear deadline (ECC decommissioning before 2030)

Help reshape a landscape currently constrained by:o High complexity

o Slow change cycles due to SAP dependency

Deliver tangible outcomes such as:o Reduced technical debt

o Faster business change

o Simplified architecture and improved performance

If you receive suspicious outreach claiming to be from us, please contact us via the ManpowerGroup website