Job Description

Mission Overview:

Keystone Solutions is seeking a Sourcing Program Manager for a consultancy mission at a client site. This role is pivotal in the context of an IS transformation aimed at enhancing overall performance, cost control, and value creation for the business. The implementation of a structured sourcing model aligned with IT strategy is a key lever for success.

Responsibilities:

The consultant will be responsible for the following tasks under Keystone Solutions' consultancy model:

• Refine and steer the IT sourcing strategy.
• Formalize a transversal sourcing strategy to optimize the balance between internal and external capabilities, defining the most relevant models for each domain (managed services, managed teams, software factory, internalization, etc.).
• Drive the transformation of sourcing models.
• Orchestrate the transformation waves identified in the high-level strategy, transitioning from fragmented models to industrialized ones while ensuring service continuity and risk management.
• Establish a structured SPVM model.
• Define and operationalize a governance framework for Sourcing, Procurement & Vendor Management, including roles, responsibilities, decision-making processes, and management tools.
• Enhance supplier performance management.
• Structure the management of the strategic supplier portfolio, implement performance tracking practices (KPI, SLA), and optimize the supplier panel.
• Deploy a SIAM (multi-vendor) model.
• Define and implement an integration and coordination model among multiple suppliers to ensure an end-to-end view of IT services.
• Oversee financial management and realization of benefits.
• Contribute to IT cost optimization by improving expenditure predictability and aligning sourcing decisions with the value delivered to the business.
• Coordinate stakeholders and drive change.
• Ensure alignment between IT, Procurement, Finance, and Business teams, and support the adoption of new sourcing models.

Expected Deliverables:

• Refined and formalized IT sourcing strategy (target vision and transformation roadmap).
• Sourcing transformation plan with implementation wave tracking.
• SPVM governance model and operational framework.
• SIAM model and multi-supplier coordination mechanisms.
• Supplier performance management dashboards.
• Tracking of gains and benefits related to sourcing optimization.

Expected Services:

• Strategic and operational support to relevant departments in transforming the sourcing of certain systems.
• Cross-functional coordination of sourcing initiatives involving IT, Procurement, and Finance.
• Support teams in adopting new models (processes, governance, tools).
• Assistance in structuring vendor management practices and performance management.
• Contribute to securing transitions (continuity, quality, risks).
• Regular reporting to governance bodies.

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal

Duration: 15/07/2026 - 31/12/2026 6 months • (full time)

Skills required:

• Change Management - Level: Advanced - Most recent: Any time
• IT Governance Framework - Level: Expert - Most recent: Any time
• Outsourcing - Level: Expert - Most recent: Any time
• Public Procurement Expertise - Level: Expert - Most recent: Any time
• Strategy monitoring - Level: Expert - Most recent: Any time

Language requirements:

Dutch or French
Level Full professional proficiency
English
Level Professional working proficiency

Screening questions:

Are you prepared to be present in STIB offices at least 3 days a week
AVez-vous au minimum 5 ans d'expérience dans un département informatique d'envergure (>300 collaborateurs). Si oui, veuillez donner plus de détails
Do you have at least 5y experience in large migration/outsourcing contracts and less than 1 year ago?
Do you have experience with SIAM (Multi vendor models)
Do you have at least 3 years experience in public transport sector?