Freelancer profile translated to English.
Back to original languageAbout Nicolas
Specialized consultant in Open Source solutions, I assist companies, businesses, and organizations in choosing, installing, and integrating sustainable, secure tools tailored to their business needs.
With 20 years of experience in digital, e-commerce, solution design, and physical store management, I offer turnkey solutions that allow you to regain control of your digital tools while reducing costs associated with proprietary software.
I primarily work with the following solutions:
- Nextcloud: private cloud, file sharing, collaboration, calendar, messaging, and data sovereignty.
- Dolibarr: sales management, invoicing, CRM, inventory, accounting, and business piloting.
- Pastèque: point-of-sale system for shops, restaurants, and retail.
- InvenTree: inventory management, traceability, components, and supply chain.
My services cover:
- Audit and consulting
- Installation and configuration
- Hosting and security
- Migration from existing solutions
- Training
- Support and maintenance
I favor simple, scalable, and long-lasting architectures, with a pragmatic approach focused on real-world usage and user autonomy.
French
Native or bilingual
English
Fluent
Can work on-site
Paris 19e Arrondissement (up to 20km)
Experience
- Librairie des AlpesOpen Source Integration Consultant – Computerization of an Independent BookstoreCULTURESeptember 2025 - Today (11 months)Paris, FranceOpen Source Integration Consultant – Computerization of an Independent BookstoreFull support for a traditional bookstore in its digital transition, from technical architecture to product catalog structuring and team training.Achievements:
- Design and deployment of a professional infrastructure based on open source solutions
- Installation and configuration of the Pastèque API on a dedicated Debian server
- Hosting and data security on a dedicated physical machine
- Implementation of secure remote access via OpenVPN
- Computerization and integration of over 10,000 book titles
- Structuring and standardization of the product hierarchy to improve catalog and sales management
- Training teams on the daily use of the point-of-sale system and associated tools
- Writing technical and operational documentation
- Corrective and evolutionary maintenance of the infrastructure
Results- Transition from a fully manual operation to a centralized management system
- Improved reliability of inventory and sales tracking
- Enhanced organization of references and product search time
- Secure, sustainable infrastructure adapted to the constraints of an independent retail business
- ConverteoData ConsultantCONSULTING AND AUDITSJanuary 2024 - August 2025 (1 year and 7 months)Paris, France
- Consulting mission with large corporations on data, visualization, and product structuring issues.
- Clarification of business needs, dashboard design, workshop facilitation, and simplification of complex topics to improve understanding, decision-making, and tool adoption by teams.
- FreelanceConsultant & Digital DesignerCONSULTING AND AUDITSJanuary 2018 - December 2019 (1 year and 11 months)Paris, France
- Support for SMEs, startups, and product teams in designing digital solutions and business tools.
- Involvement in defining needs, structuring workflows, interface design, prototyping, and improving user experience with a pragmatic approach focused on real-world usage.
Reviews
Vincent
Vinland
Reviewed on 6/1/2021
For a particularly innovative project changing usual practices, Nicolas took the necessary distance to analyze the state of the art from competitors and services with similar uses, to design solutions particularly adapted to the project's innovations.
His experience allowed us to get straight to the point, by designing user flows first, then wireframes, and finally a real prototype. Based on his work, we tested the application with a panel of users, before having it developed thanks to the success achieved during the tests.
I would advise anyone wanting to design applications to work upstream with Nicolas the UX, to directly arrive at an intuitive interface for users without redoing the application multiple times.
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Education
- Data Analytics & AILe Wagon2023
- Design 101Designlab2017