
Gregory Dahan
Business Transformation & Turnaround Consultant
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Bruxelles, Belgique
Mobilité : Paris, Lille, ...
Freelance
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Expertises
À propos
Introduction
CEO/COO/CFO & Business Transformation Leader. I help complex organizations regain clarity, cut costs, secure cash, recover performance, grow revenue and digitalize operations. 20+ years across international consulting, SAP/ERP, eCommerce, supply chain, finance and turnaround. Former SAP/HRIS program leader, now CEO of VIDYA for 10+ years, with hands-on P&L, operations, sales, marketing, CRM, recruitment and business recovery experience.
Expérience de travail
CEO & Founder - VIDYA
VIDYA
juin 2014 - Présent
12 ans 5 mois
Belgique
Founded and led a fast-growing startup specialized in the distribution of sustainable and healthy products, operating across Europe and Asia. Responsible for defining strategic direction, leading cross-functional teams, and driving growth through innovation, eCommerce, and international logistics. Key Responsibilities & Achievements: - Defined the company’s vision, business model, and go-to-market strategy from creation to scale-up. - Oversaw all corporate functions: Finance, HR, Legal, Operations, Sales, and Risk Management. - Led development and integration of digital platforms (eCommerce, blog, Odoo ERP, API connectors). - Designed and executed the full import-export strategy (Asia–Europe), including sea and air logistics. - Managed end-to-end procurement, warehousing, and distribution operations. - Directed communication, branding, and marketing campaigns to support market penetration. - Built strategic partnerships and secured key resources to enable long-term growth. - Handled crisis management during unstable market periods to ensure operational continuity. - Supervised a core team of 10 internal employees + 5 external collaborators. Environment: General Management · Strategy · Digital Platforms (Odoo, Notion) · Project Management · International Logistics · Cross-border eCommerce · Business Development · Operational Finance · Team Leadership
Operations & Supply Chain Transformation Manager | WMS, Process Recovery & Performance Improvement
eFarmz Freelance
sept. 2023 - janv. 2024
5 mois
Belgique
Led a hands-on transformation mission at eFarmz, a fast-growing food eCommerce and logistics scale-up, to stabilize warehouse operations, restore productivity and improve team alignment after the deployment of a digital warehouse management system. Key Responsibilities & Achievements: Stabilized daily warehouse operations following the deployment of Mecalux WMS. Rebuilt operational discipline through clear routines, Agile sprints, daily follow-up and structured issue management. Analyzed end-to-end workflows across order preparation, warehouse operations, production capacity and delivery constraints. Identified bottlenecks, manual workarounds and process gaps impacting productivity, delivery performance and customer satisfaction. Designed and implemented practical operational fixes to increase production capacity and improve flow reliability. Coordinated operational teams, project stakeholders and management to align priorities and restore execution rhythm. Supported WMS adoption by frontline teams through documentation, testing, training and hands-on change management. Improved KPI tracking across operational performance, delivery time, customer satisfaction and cost control. Led and supported a team of 28 people, including 23 operational staff and 5 project stakeholders. Helped transform initial resistance into stronger adoption of the new digital operating model. Environment: Food eCommerce · Scale-up Operations · Supply Chain · Warehouse Management · WMS · Mecalux · Operational Excellence · Process Recovery · Change Management · Agile · Asana · KPI Management · Logistics Optimization · Team Leadership · Delivery Performance · Continuous Improvement
ERP / SAP HCM Project & Change Manager | HRIS Transformation, PMO & Service Delivery
FeelanceFreelance
juil. 2014 - août 2022
8 ans 2 mois
Belgique
ERP / SAP HCM Project & Change Manager | HRIS Transformation, PMO & Service Delivery Delivered long-term SAP HCM / HRIS transformation and project management missions, supporting clients in the modernization, deployment and improvement of HR systems and business processes. Key Responsibilities & Achievements: Managed SAP HCM / HRIS project delivery across planning, scope, execution, risks, budget, quality and stakeholder coordination. Led consultants, technical experts and business stakeholders to secure delivery consistency and service quality. Supported SAP HR process transformation across Personnel Administration, Organizational Management, Time Management, Payroll and HR reporting. Managed project governance, roadmaps, steering committees, planning follow-up, RAID logs and delivery reporting. Provided technical and functional oversight, conducted audits and ensured alignment between HR business needs and system capabilities. Applied hybrid PMI and Agile methodologies to manage priorities, risks, timelines and client expectations. Supported change management, user communication, training, documentation and adoption of new HRIS processes. Contributed to contract management, sourcing discussions, profitability tracking and delivery performance improvement. Ensured compliance, documentation quality and operational continuity across long-term SAP HR engagements. Technologies: SAP HCM · SAP HR · MS Project · Excel · HRIS · Reporting Methodologies: PMI · Agile · Hybrid Project Management · Change Management · Service Delivery · PMO Environment: ERP Transformation · SAP HCM · HRIS Implementation · Project Portfolio Management · Business Process Redesign · Consultant Coordination · Stakeholder Management · Risk Management · Training · Documentation · Service Quality
HR Business Process Expert & Project Manager
Dow Corning
mars 2010 - janv. 2014
3 ans 11 mois
Seneffe, Belgique
Led SAP HCM, HRIS and HR process transformation projects across European entities within a global Fortune 500 company, working with global teams based in the US, UK, France, Germany and offshore development teams in India. Key Responsibilities & Achievements: Led SAP HCM upgrade programs and implemented new HR processes across Learning & Development, Talent Acquisition, Payroll, Time Management and PA/OM. Managed European HRIS standardization and alignment of HR processes across multiple countries. Coordinated global and regional projects involving HR, Finance, IT, Payroll and external partners. Managed offshore development and support teams in India, as well as distributed stakeholders across the US, UK, France and Germany. Oversaw financial flows linked to HR processes across Europe, including payroll-related data, cost allocation, interfaces and compliance requirements. Acted as liaison between European operations, global HR leadership, IT teams and local business stakeholders. Coordinated system maintenance, incident follow-up, enhancements, testing and release activities. Managed project planning, risks, dependencies, documentation, training and change communication. Supported global training system transformation and talent acquisition system deployment. Supervised a team of 8 people: 3 internal developers and 5 offshore consultants. Technologies: SAP HCM · SAP HR · PeopleClick · MS Project · Clarity · MS Visio · HRIS · Reporting · SAP HCM · SAP HR · SAP PA · SAP OM · SAP PY · SAP PT Methodologies: PMI · Six Sigma · Change Management · Process Mapping · Global Delivery Environment: Global SAP Transformation · HRIS · Payroll · Time Management · PA/OM · HR Data · Finance-HR Integration · European Rollouts · Offshore Teams · Multinational Stakeholders · Process Standardization · Training · Compliance
Strategy & Process Manager | SAP HCM, HR Process Transformation & European Delivery
Capgemini Consulting
juil. 2007 - mars 2010
2 ans 9 mois
Belgique
Led SAP HCM process improvement and system evolution projects for major international clients across manufacturing, public sector, energy, banking and pharmaceuticals. Clients / sectors covered: Philips (manufacturing / electronics), UK public sector / County Council, ENGIE / GDF Suez (energy), ING (banking), GSK (pharmaceuticals). Key Responsibilities & Achievements: - Led SAP HCM update projects and new HR process implementations. - Analyzed HR service processes and identified improvement opportunities across Payroll, Time Management and Personnel Administration. - Designed, improved and standardized HR processes for European entities. - Managed change management activities to support user adoption and process alignment. - Organized and supervised the maintenance of the SAP HR system for Europe. - Coordinated with international management teams and stakeholders based abroad. - Managed a team of 5 developers to deliver system changes, fixes and process improvements. - Acted as a bridge between HR business teams, SAP technical teams and management. - Supported testing, documentation and implementation follow-up for SAP HR changes. Technologies: SAP HCM · SAP HR · SAP PA · SAP PY · SAP PT · PeopleSoft · ABAP · MS Project Methodologies: Project Management · Change Management · Process Analysis · Process Improvement · HRIS Delivery Environment: SAP HCM · HR Transformation · Payroll · Time Management · Personnel Administration · European Rollouts · SAP Maintenance · International Stakeholders · Developer Coordination · HR Process Standardization
SAP HCM Project Manager | SAP Configuration, HR Process Integration & Delivery
NorthgateArinso
juin 2005 - juil. 2007
2 ans 2 mois
Belgique
First major project management experience in SAP HCM / HRIS environments, supporting SAP configuration, HR process integration, system updates and new process implementation for clients across energy, pharmaceuticals / medical devices, food / FMCG and internal SAP solution development. Key Responsibilities & Achievements: Led SAP HCM update projects and supported new HR process implementations. Configured and integrated SAP HCM processes across Payroll (SAP PY), Time Management (SAP PT), Organizational Management (SAP OM) and Personnel Administration (SAP PA). Analyzed HR service processes and translated business requirements into SAP functional configuration and process improvements. Supported the setup, testing and deployment of SAP HR solutions for European HR processes. Coordinated with management teams and stakeholders based abroad. Managed a team of 5 developers to deliver SAP changes, fixes and process improvements. Acted as a bridge between HR business users, SAP technical teams and project stakeholders. Supported testing, documentation, change communication and user adoption. Contributed to internal SAP solution development, including HORECA-related business process use cases. Clients / Projects: Elia (Energy / Utilities) · Medtronic (Pharmaceuticals / Medical Devices) · Sara Lee (Food / FMCG) · Internal SAP solution development Technologies: SAP HCM · SAP HR · SAP PA · SAP OM · SAP PY · SAP PT · PeopleSoft · ABAP · MS Project Methodologies: Project Management · SAP Functional Configuration · SAP Customizing · Change Management · Process Analysis · HRIS Delivery · Testing · Documentation Environment: SAP HCM · HRIS · Payroll · Time Management · Organizational Management · Personnel Administration · SAP Integration · SAP Configuration · Developer Coordination · International Stakeholders · HR Process Improvement
Radio Engineer
Clearwire
sept. 2004 - mai 2005
9 mois
- Lead and control the Radio link installation - Manage the operators who installed the antenna - Do the technical configuration of the new link. - Work in stress and very difficult condition. Team Manager : 3 operators on the field Environment: CISCO, Point to Point Network, Point to Multipoint Network, Microsoft Server, Server Infrastructure
Network Engineer
BT Global Services
févr. 2004 - août 2004
7 mois
Bruxelles, Belgique
Responsible for the deployment of an IP telephony Lab, managing server infrastructure and Network Infrastructure. Environment: CISCO, Microsoft
Formation
ENSIAME
Civil Engineer, Mechatronics
Activités et associations : President of the "Junior Entreprise" of the school
Civil Engineering, Project Management, Mechatronics
Lycée Raspail
Higher National Diploma, Engineering
Intensive scientific preparation for engineering school entrance exams Focus: Mathematics, Physics, Engineering Sciences Developed high stress-management skills and problem-solving capacity
Lycée Jean Baptiste Say
High School Diploma, Sciences track
Graduated with specialization in Mathematics and Physics Early exposure to scientific reasoning and technical disciplines
Université Polytechnique Hauts-de-France
Master, Microelectronics and Telecom
Activités et associations : Specialization: Communication Systems Engineering (ISC – Ingénierie des Systèmes de Communication) Focus: Telecommunications, Nanotechnology, Networking Program recognized for training high-level engineers in advanced telecom and digital technologies ECTS Credits: 120 (4 semesters)
Telecom, Nanotechnology, Network
The Open University
Master of Business Administration - MBA, In Progress
Licences et certifications
Belgium Social Legislation
Délivré le : juil. 2007
Pratical Project Management
Délivré le : déc. 2006
Portfolio

Réorganisation financière et redressement – VIDYA

Transformation logistique, WMS et montée en capacité – eFarmz
