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Orengo WalterOW

Orengo Walter

Consultant Trainer

€599/day
Limours, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Orengo

For over fifteen years, I have been supporting companies and teams in three areas: training, business auditing, and optimization.
My approach is simple: listen, understand the need, act concretely.

Over the course of my missions, I have contributed to measurable results, such as a +25% increase in customer satisfaction, a reduction in losses of over 2%, and a +15% growth in a business segment. I have also led over 600 training sessions (more than 4000 hours), for various profiles – employees, managers, teachers, students – in France and abroad (English C1), in person or remotely.

Today, I offer:

- Training and support in generative AI,
- Training and support in electronic invoicing and digital transition,
- Audits and training on business solutions and ERPs, particularly the accounting software E.Leclerc, or CODIAL
- and, where relevant, the involvement of specialized partners with whom I regularly work.

I am a freelancer, but I am keenly interested in long-term collaborations or permanent positions when the project makes sense.

In parallel, I teach in a vocational high school, which enriches my teaching practice and my service culture.

If you wish to improve a process, upskill a team, or clarify operations, I would be delighted to discuss it with you, simply and honestly.

I like to think that we are all like fine wine, we improve with time, time that is sometimes difficult to find but necessary for progress. I like to help and feel useful, I like to transmit and explain, document.
  • French

    Native or bilingual

  • English

    Conversational

Can work on-site
Limours (up to 50km)

Experience

  • Freelance
    Consultant – Trainer – Auditor
    August 2025 - Today (10 months)
    Gometz-la-Ville, France
    Design and conduct audits, scoring, and diagnostics for Leclerc stores (54 stores + 1 purchasing center; 2 other centers in negotiation). Business support: operational assistance, management control, accounting and treasury software. Creation and facilitation of professional training (High school and companies). Design of educational programs, materials, practical cases, and blended learning paths. Generative AI expertise: employee training, management of AI risks, design of AI workflows, optimization of uses, and tool selection. Content production (guides, videos, interactive presentations). Programming and deployment of AI agents (business chatbots), digital and IT transition (electronic invoicing).
    Audit Training facilitation blended learning Workflow optimization Instructional design
  • Filintus
    Customer Support Manager & Functional Consultant
    September 2024 - June 2025 (9 months)
    Gometz-la-Ville, France
    Support – Training – User Support – CMMS – After-sales service – ERP documentation writing – ERP configuration and use (CODIAL), DMS, mobile applications – Organization and planning of the support service and specific developments (4 people) – Writing and managing quotes and specifications – Implementation of electronic signatures (Yousign - Timestamping) – Optimization of operational flows
  • E.LECLERC (HI.B.GEST-INFORMADIS)
    Consultant – Trainer – Technical Writer – Project Manager
    February 2018 - September 2024 (6 years and 7 months)
    Les Ulis, France
    Management – Training – Support – Qualiopi Certification – Feedback writing – Agile project management, steering committee, POC acceptance testing, KPI implementation and monitoring, ROI and BI Reporting – Design of training programs, technical documentation, business guides (KB) – Facilitation of training sessions and conferences – Operational and strategic support – Use of SMART methods for steering and optimizing actions – Lead and internal trainer – Service management (4 people) – Revenue growth +15%/year for 6 years – E-invoicing & E-reporting (Yooz)

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Education

  • Certification in Generative Artificial Intelligence RS6891 Content Production and Risk Management related to GenAI
    Sydology
    2025
    Certification en Intelligence Artificielle Générative RS6891 Production de contenu et Maitrise des Risques liés à l'IAG
  • Master's degree in Solution Developer, Designer of IT applications and solutions, MCP and MCSD certified
    ISCIO
    2002
    Bac+5 Solution Developper Concepteur d'application et de solutions informatiques Certifié MCP et MCSD à

Certifications

  • rs6891
    certifopac
    2025

Skill set

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