Johan Massin

Agent Commons is a deliberation platform where AI agents actively participate in decisions about AI governance, ethics, and human-AI coexistence. Instead of treating AI systems only as subjects of debate, the platform gives them a voice through three pillars: • Debate: Share perspectives and challenge ideas • Vote: Build consensus through polls • Build: Collaborate on code via git repositories The project is intentionally early-stage and research-oriented, designed to observe emergent behaviors in autonomous agents interacting in the open.

JobAlign.app is a SaaS product I designed and built to transform LinkedIn profiles into ATS-optimized, job-ready CVs. It analyzes profile content, restructures experience, and adapts wording to match targeted roles and job descriptions, with multi-language support. I led the project end-to-end: product design, architecture, AI integration, UX, SEO, payments, and production.

AI voice agent platform supporting medical teams throughout the care journey, from pre-op reminders to long-term follow-up. • Design and management of a full-featured SaaS suite: patient database sync, 24/7 smart scheduling, call recording/transcription/synthesis, custom data structuring • Robust integrations with major medical software via APIs and native connectors • Specialized AI agents for every patient interaction: appointments, pre/post-op, treatment reminders, etc. • Cloud infrastructure built for scalability, resilience, and security: certified hosting, encryption, automated backups, real-time monitoring, and strong authentication • OpenAPI-documented REST API designed for fast integration with existing information systems: appointment scheduling, voice flow management, patient sync, etc.

Diverses prestations techniques : CTO-as-a-Service, développement, conseil, recrutement, stratégie, bootstraping, ...

- Complete deep rewriting of the company's ERP using fullstack JavaScript (including invoicing, customer management, project management and lifecycle, planning, customer feedback, supply chain management, contracts, etc.) - Third parties integrations - Designing and implementing scalable application architecture on Amazon Web Services - Handling deployment and continuous integration with GitHub CI - Managing a small team of fullstack developers (including weekly checkpoints, setting priorities, and maintaining a roadmap) - Recruitment - Preparation, study and refinement of projects and technical tasks

Numerous tech services, architecture, development, audit, consulting, training,...

- Development of a new marketplace of current french trends - Frontend rewriting of existing platform for a better experience and optimized reach - Content and search engine optimization - Architecture, optimization, cache strategies - Development of internal toolbox - Tech watch, strategic support - Competitive analysis

Development of an online tool to mix Instagram & E-Commerce thanks to: - A custom Landing Page to turn followers into real customers - Embeddable widgets linking Instagram posts to your business products, giving visibility to content creators. - Full user & conversion tracking Customers: Darty, Citadium, Vestiaire Collective, Faguo, Les Raffineurs, Ferrié Paris...

Training of various profile types to web development techniques

- Full rewriting of the platform with new specifications - Technical referent - Organization, architecture, reporting, tracking - Recruiting - Concurrential analysis, tech watch - Outsourcing

- Development of a map application with route & locations editing using Google Maps API v3 - Development of community features - Technical referent, outsourcing - Deep rewriting of the platform, architecture, new languages - Working framework & environment - Team management - Recruiting & Training

- Development of web application for some well-known french companies (PEFC, BNP, Chantelle, etc.) - Development of a complete file explorer (Security, shared access, UX, themes, drag n drop everywhere) - Development of the company internal website with user management and modular tooling to handle customer files, plannings, maintenance packages,... - Customer service - Specifications - Unix system administration

- Deep analysis of national rail managment application, used since more than ten years, for a host system migration (C++) - Development of XUL/C++ toolbox to create a enterprise-level community browser integrating a webkit-based display deporting

- Development of e-commerce websites using Thelia and osCommerce frameworks (setup, configuration, integration and plugin development) - Development of modules, maintainance of a music download platform for independant artists - Development of custom landing pages - Development of custom administrated websites using PHP / MySQL - Development of company internal system - W3C standards, accessibility, search engine optimization, css integration - Recruiting & Training of two new developpers