About Guillaume
- Structuring of a modern ABAP factory
- Securing S/4HANA migrations & upgrades
- Leading teams of up to 18 developers (multi-country)
- Reduction of technical debt & performance improvement
- RAP, CDS Views, OData V4, Fiori Elements
- Clean Core, standard SAP extensibility
- AMDP, HANA performance, ATC & code quality
- Leading teams of up to 18 consultants (on/off/nearshore)
- Implementation of standards (Clean ABAP, code reviews, quality)
- Estimation, delivery management, go-live security
- IDOC, BAPI, RFC, REST/SOAP Web Services
- SAP Enhancements (BAdI, User Exits, BTE, VOFM)
- FI/CO, MM, SD, PP, QM, LE/TM, EWM, WM, IS-Retail Fashion
French
Native or bilingual
English
Fluent
Spanish
Conversational
Experience
- KUHN – LEADER MONDIAL MATERIEL AGRICOLETech Lead S/4HANASeptember 2020 - Today (5 years and 9 months)Saverne, France
- Technical lead of an ABAP/Fiori team (6 people)
- Definition of the development architecture (Clean Core, RAP)
- Implementation of quality standards (Clean ABAP, ATC, systematic reviews)
Impacts:- Clean Core Architecture facilitating S/4 upgrades (2020 → 2023 without major disruption)
- Significant performance improvement via AMDP & CDS
- Rapid skill development for juniors → enhanced team autonomy
Stabilization of critical multi-module developmentsTechnical Env: SAP S/4HANA 2023, RAP, CDS, OData V4, Fiori Elements, Clean ABAP - THOM GROUP- LEADER EUROPÉEN DE LA BIJOUTERIE (Tresor, Histoire d’Or, etc.)Tech Lead / Technical Project ManagerMarch 2019 - September 2020 (1 year and 6 months)Paris, France
- Leading a team of 9 developers (France + India offshore)
- Complete construction of the S/4 Retail technical foundation
Impacts:- Implementation of a scalable architecture from scratch
- Structuring of a high-performing offshore team (quality + delivery)
- Reduction of issues in testing phase thanks to solid development standards
Technical Env: SAP S/4HANA 1809, CDS, OData V2, Fiori, AMDP, ABAP OO - CRITEO - LEADER DE LA PUBLICITÉ CIBLÉE & PERFORMANCE MARKETINGSAP Tech LeadSeptember 2015 - March 2019 (3 years and 6 months)Paris, France
- Leading ECC6 EhP8 + BW upgrade
- Migration to Fiori (architecture + security)
Impacts:- Securing a cross-functional program (infrastructure / functional / technical)
- Automation of intercompany processes (400 man-hours) → reduction of manual operations
- Improvement of user experience via Fiori
Technical Env: SAP ECC6 EhP8, Fiori, BW NW 7.5, ABAP OO
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Education
- Professional Master A.S.S.University of Versailles Saint-Quentin-en-Yvelines (UVSQ)2006Master Professionnel A.S.S.