Integration Architect

Overview

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, and enable full decommissioning of SAP ECC before 2030.

Location: London (hybrid). Contract: six months.

Responsibilities

• Design and govern integration architecture across legacy SAP ECC, SAP S/4HANA (Finance core), and domain-driven business systems to enable a modular, decoupled landscape.
• Lead the decoupling strategy by removing non-finance functionality from SAP and redirecting data flows to domain platforms or integration layers.
• Develop a target integration architecture aligned to S/4HANA as the finance system of record and establish integration patterns (APIs, events, messaging) for a decoupled landscape.
• Ensure adherence to programme guiding principles, including Minimum Viable Integration, standard-first approach, and exception-by-design.
• Redesign outbound and inbound interfaces to repoint integrations to domain systems and reduce SAP’s role as a central data distribution hub.
• Provide technical oversight of integration build and test activities across a multi-partner delivery model.
• Own or contribute to key artefacts: Integration Strategy, Interface Specifications, and Non-functional requirements (performance, scalability, resilience).

Delivery & Governance

• Work across Design → Build → Test → Deploy (SAP Activate aligned).
• Collaborate with Enterprise Architecture teams and SAP functional teams (Finance, PTP, OTC) and 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 SAP ECC and SAP S/4HANA.
• Demonstrated experience in large-scale transformation programmes and designing integration solutions in complex, highly integrated environments.

Technical Skills

• Deep understanding of enterprise integration patterns (API, event-driven, messaging) and interface-based integration (IDocs, services, batch).
• Experience with multi-system landscapes (ERP + domain systems) and integration platforms/middleware.

Architecture & Design Capability

• Proven ability to design scalable, modular integration architectures and simplify complex estates to reduce dependencies.
• Familiarity with 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 high complexity and slow change cycles due to SAP dependency.
• Deliver tangible outcomes such as reduced technical debt, faster business change, and simplified architecture with improved performance.

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