Senior SAP FI Specialist (FI-GL, FI-AR, FI-AP, FSCM)
Brussels-Capital
Digital - Infrastructure
Reference number: 91997

A major public-sector organisation is modernising large-scale finance systems as part of its S/4HANA transformation. To support this roadmap, we are looking for a Senior SAP FI Specialist with deep expertise in FI-GL, FI-AR, FI-AP and FSCM, able to drive functional design, change delivery and solution quality across a complex multi-module landscape.

What You’ll Do

  • Lead the end-to-end delivery of SAP FI change requests from requirement analysis to go-live.
  • Support first and second line FI operations, ensuring stability across FI-GL, FI-AR, FI-AP and FSCM.
  • Run blueprint and fit-gap workshops covering finance, ticketing (sales & invoicing) and FI/CA integrations.
  • Analyse business processes, estimate effort and translate requirements into functional designs.
  • Configure SAP FI and produce high-quality functional and technical specifications.
  • Conduct unit and integration testing, coordinate business testing and secure smooth go-live adoption.
  • Manage master data and integrations with third-party tools and other SAP areas.
  • Contribute actively to S/4HANA preparation, blueprinting, migration and deployment.
  • Debug program logic to support issue analysis and ensure robust solution behaviour.
  • Act as SPOC for finance stakeholders, facilitating workshops and aligning with cross-domain SAP experts.
  • Mentor junior colleagues and help raise functional standards within a 20+ FTE delivery team.

What are we looking for?

  • A Master’s degree or equivalent experience.
  • 10+ years of hands-on SAP FI expertise across FI-GL, FI-AR, FI-AP and FSCM.
  • Proven experience delivering SAP FI projects end-to-end in complex environments.
  • Strong understanding of E2E finance processes and their SAP representation.
  • Experience integrating FI with modules such as FI/CA, MM, SD or CRM.
  • Ability to write functional and technical specs, perform impact analysis and run testing independently.
  • Ability to debug code for faster issue resolution.
  • Strong analytical, communication and workshop-facilitation skills.
  • Comfortable collaborating across business, architecture and technical SAP teams.
  • Fluent in Dutch and/or French, with good command of English.

What do we offer?

Location: Brussels (hybrid)

Duration: Until 31 December 2027 (extendable)

Contract: Freelance or Permanent

Onsite presence: 3 days per week

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