We are looking for an experienced SAP Basis consultant to act as a performance advisor for complex SAP landscapes. This is an advisory role rather than hands-on system administration: the focus is on analysing environments and providing expert recommendations that optimise system performance and ensure compatibility with specialised transformation tools. You will work closely with a multidisciplinary team delivering large-scale SAP initiatives, including data migrations, carve-outs, data deletions, upgrades and transformations. Your recommendations will directly shape how efficiently and safely these projects run. Key responsibilities • Analyse SAP system landscapes and identify performance bottlenecks. • Provide expert recommendations to customers on system configuration and optimisation. • Advise on the changes required to ensure optimal performance of external tools and processes. • Review architecture across SAP versions and database platforms. • Guide best practices for: – System performance tuning – Data volume management (excluding archiving strategies) • Support planning activities for data migrations, system carve-outs, and upgrades and transformations. • Collaborate with technical and functional teams to align recommendations with project goals. • Provide input on database-level considerations across Oracle, Microsoft SQL Server and SAP HANA DB. • Assist in analysing ABAP-related performance issues (traces, dumps and inefficient programs). Required skills & experience • Strong background in SAP Basis architecture and performance optimisation. • Experience across multiple SAP versions (ECC, S/4HANA, etc.). • Deep understanding of database platforms: Oracle, Microsoft SQL Server and SAP HANA DB. • ABAP knowledge to analyze and change snippets and/or create new ones. • Proven experience in SAP projects involving data migrations, carve-outs and system upgrades. • Ability to assess complex landscapes and provide clear, actionable recommendations. Strong understanding of key SAP tables and data structures – particularly the large-volume tables that dominate performance and data-intensive operations: Preferred qualifications • Experience in S/4HANA conversions or transformation programmes. • Exposure to SAP functional processes (FI, MM, SD, etc.). • Experience advising clients in high-impact or large-scale environments. • Strong communication and stakeholder-management skills.