Solution Architect - Sirion CLM (SAP Ariba / SAP S/4HANA)

Programme Context

This role supports the CLM Buy & Legal transformation programme, with Sirion CLM as the strategic contract lifecycle platform. The programme integrates Sirion with SAP Ariba and SAP S/4HANA Finance to enable standardised, compliant, and scalable buyside contract processes across BT.

Role Overview

The Solution Architect is accountable for defining and governing the endtoend solution architecture for Sirion CLM within the enterprise SAP landscape. The role ensures that functional designs, integrations, and nonfunctional requirements are coherent, scalable, secure, and aligned to enterprise architecture standards.

The Solution Architect provides design authority, working across Business, Process, Platform, Integration, and Engineering teams, and guiding vendors to deliver a configurationfirst, lowcustomisation solution.

Key Responsibilities

1. EndtoEnd Solution Architecture (CLM)

Own the overall solution architecture for buyside CLM using Sirion CLM.
Define architectural patterns covering:

Contract intake, authoring, negotiation, approvals, and execution
Inlife obligation, SLA, and compliance management
Amendments, renewals, and terminations

Ensure alignment between business processes, functional design, and technical implementation.

2. Sirion CLM Platform Architecture

Define how Sirion native capabilities are used and configured, including:

Clause and template management
Obligation and milestone tracking
Workflow automation and approvals
Reporting and compliance controls

Drive platformfirst design decisions, avoiding unnecessary customisation.

3. SAP Ariba & SAP Finance Integration Architecture

Define and govern integration architecture between:

Sirion CLM
SAP Ariba (Sourcing, Buying, supplier data)
SAP S/4HANA Finance (commitments, controls, compliance) & Other platforms

Own integration patterns, data flows, interface contracts, and errorhandling approaches.
Ensure data consistency across supplier, contract, and financial domains.

4. Design Governance & Assurance

Act as design authority for all Sirion CLM solution decisions.
Review and approve functional designs, integration designs, and technical approaches proposed by vendors.
Ensure designs meet nonfunctional requirements (security, performance, scalability, auditability).
Support architecture reviews, solution walkthroughs, and formal signoff forums.

5. Collaboration Across Roles

Work closely with Business Analysts to ensure requirements are architecturally viable.
Partner with Process Designers to ensure solution architecture fully supports futurestate processes.
Guide Solution Designers and Engineering teams on implementation decisions.
Align with enterprise architecture, security, and integration teams.

Required Experience & Skills

Experience

10+ years of experience in solution / enterprise architecture across Procurement, CLM, or Finance platforms.
Strong handson experience architecting Sirion CLM solutions.
Deep experience with SAP Ariba and SAP ECC / S/4HANA Finance integrations.
Experience working with system integrators and managing architectural governance.

Core Skills

Deep understanding of buyside contract lifecycle architecture.
Strong knowledge of enterprise integration patterns and data architecture.
Ability to balance business outcomes, platform capabilities, and technical constraints.
Excellent stakeholder communication, influence, and design documentation skills.

Solution Architect - Cloud Applications / SAP Ariba