Freelancer profile translated to English.
Back to original languageAbout Jason
Passionate about innovation and system integration, I am a full-stack developer with expertise in mobile, blockchain (Smart Contracts), and critical systems (Mainframe/COBOL).
I have worked on various projects integrating modern technologies like JavaScript (VueJS, React), Rust, Python, and Node.js, and I have solid experience in development/maintenance on the COBOL environment.
My adaptability and curiosity allow me to excel in demanding assignments, ranging from algorithm optimization to the creation of high-performance web and mobile applications, as well as the modernization and interfacing of legacy systems.
📌 Expertise:
Full Stack & Mobile: JS, TS, Node.js, VueJS, ReactJS/ReactNative.
Blockchain & AI: Rust, MultiversX, Smart Contracts, Python.
Critical Systems: COBOL, Mainframe - JCL - CICS
📍 Available for assignments:
Web & Mobile Development.
Smart Contracts & Blockchain.
Cobol Development/Maintenance.
💡 Let's discuss your innovation project or your modernization needs!
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- PandaLabFull-Stack DeveloperMEDICALDecember 2025 - February 2026 (2 months)Nancy, FranceDevelopment of robust application architectures focused on high availability.Code analysis and refactoring to optimize platform performance.Continuous improvement of user experience (UX) on the Front-end interface.Strict alignment of software production with internal development standards.
- QowattWeb DeveloperTECHMarch 2023 - August 2023 (4 months)Barcelone, SpainArchitecture of the web application and transactional infrastructure.Integration of the application with the MultiversX blockchain for digital asset tracking.Development of secure Smart Contracts in Rust to automate and ensure the reliability of financial processes.Implementation of real-time bidirectional communication features with Socket.io.
- SmartBazaarFullstack & Blockchain Developer AnalystTECHAugust 2022 - Today (4 years)Barcelone, SpainDesign and complete development of an innovative Web3 platform dedicated to launching digital assets (ESDT Tokens) and managing highly secure transactional flows.Development of secure Smart Contracts in Rust to automate and ensure the reliability of financial processes.Implementation of real-time bidirectional communication features with Socket.io.
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Education
- Expert in Information TechnologyEPITECH2024Formation axée sur la pédagogie par projet, développant une forte capacité d’adaptation et d’analyse. Maîtrise des concepts de programmation orientée objet (C++) et des architectures Web. Spécialisation Grand Système.
- COBOL Mainframe DeveloperAJC2025Maîtrise de l’environnement z/OS (MVS, TSO/ISPF) et des langages COBOL/JCL. Gestion et requêtage sous DB2. Formation en distanciel.