Freelancer profile translated to English.
Back to original languageAbout Lionel
With 16 years of experience in IT, I help VSEs and SMEs in developing sovereign software architectures and in leveraging the benefits of Artificial Intelligence.
Currently available technologies, when well-chosen and employed, can have a significant impact on increasing revenue and reducing costs.
I thus support each client in building optimized solutions with a profitability objective. This involves technological choices that guarantee data sovereignty and cost control, primarily relying on open source, robust frameworks and software (Symfony, Angular, Elasticsearch, Keycloak, ...)
I have particular experience in developing decision support applications in the legal and tax fields.
I am currently working on several AI-driven SaaS projects: an automatic documentation generator (StorytoDoc), a legal chatbot for another client. I am also developing a prospecting assistant for freelancers.
I enjoy sharing my knowledge and have been teaching in an engineering school since 2022 (AI integration, Big Data, Web Services, and advanced web development).
French
Native or bilingual
Can work on-site
Clermont-Ferrand (up to 50km), Riom (up to 50km), Lyon (up to 10km), Issoire (up to 10km)
Experience
- URLRKeycloak / Symfony ConsultantSOFTWARE PUBLISHINGJanuary 2025 - June 2025 (5 months)Clermont-Ferrand, FranceI assisted URLR on two topics as part of their growth:- Migration of the identity manager from Symfony to Keycloak: this involved migrating seamlessly for users (password and two-factor recovery). Keycloak provides more flexibility and high security.**- Load testing and performance optimizations**: I implemented load tests using k6, analyzed the results, and participated in implementing immediate improvements as well as medium-term actionable recommendations. All the changes made resulted in a **traffic capacity multiplied by 18 with the same infrastructure**.
- HIGHLIGHTAI & Web Development ConsultantSOFTWARE PUBLISHINGApril 2024 - August 2025 (1 year and 4 months)Clermont-Ferrand, FranceThis mission involved assisting StorytoDoc in the development of its SaaS: an **automatic documentation generator powered by AI**. I carried out the following actions for them:- Test automation (Symfony backend)- Performance optimization- Angular development- Development of a Chrome extension prototypeI also worked on a client project where I implemented a Doctrine/Airtable system synchronization.
- IVolcCTO | Software Architect | AI EngineerSOFTWARE PUBLISHINGSeptember 2023 - Today (2 years and 11 months)Clermont-Ferrand, FranceI founded my software service and publishing company in September 2023.I am currently working on creating a chatbot in the legal and tax domain for a client.I am also developing an AI SaaS for prospecting assistance for freelancers and VSEs.Finally, I also serve as a jury member for final student defense presentations.
Reviews
Hugo
URLR
Reviewed on 3/18/2025
Working with Lionel was a real pleasure.
Professional, attentive, and proactive, he guided me through a significant migration from a legacy system to Keycloak without any issues.
I can only recommend him!
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Education
- Engineering degree, Information Systems and Decision Support Computer ScienceISIMA Clermont-Ferrand2010Diplôme d'ingénieur, Informatique des systèmes d'information et d'aide à la décision
- University Diploma in Technology (DUT) in Computer Science, Computer EngineeringIUT Clermont-Ferrand2007DUT Informatique, Génie informatique
Certifications
- Accreditation as a jury member for the professional title Application DeveloperDDETS 632026
- Accreditation as a jury member for the professional title "Web and Mobile Web Developer"DDETS632026