Full Stack Developer, SaaS Platforms

Responsibilities

• Client follow-up & mastery of the MYGAMIFY SDK
• Support existing clients (France Télévisions, regional press publishers - PQR): technical support, issue handling, satisfaction monitoring, coordination of deployments to production.
• Master the SDK architecture: event API, score management, CMS callbacks, configuration system, multi-platform iframe integration.
• Provide maintenance and updates for 29+ games in production: bug fixes, compatibility, performance optimization, version upgrades.
• Transfer this expertise to new e-commerce platforms: adapt the SDK's proven game mechanics to create gamified acquisition experiences on merchant sites.
• Document processes, capture best practices and contribute to the technical knowledge base.
• Design and develop new games integrated into the SDK in co-development with Claude (Anthropic): game logic, scoring, timers, animations.
• Build real-time multiplayer games (live quizzes, duels, interactive buzzer), word games (word search, crosswords, anagrams) and modernized arcade games.
• Write precise prompts, critique and improve AI outputs before integration.
• Actively participate in building two innovative web platforms, from design to production: Back-end PHP/Symfony/Laravel & MySQL — API architecture, user management, subscription system, dashboards, third-party integrations (payment, analytics).

Requirements

• PHP (Symfony) / MySQL (Doctrine) — strong proficiency, MVC architecture, REST APIs, relational database management.
• JavaScript ES6+ — async/await, modules, DOM, events, timers, data manipulation.
• AI-assisted development — experience with Claude (Code, Artefact, Data Processing, Cowork). Ability to write structured prompts and evaluate outputs.
• HTML5 / CSS3 — responsive mobile-first implementations, animations, Canvas.
• Git / GitHub — branching, pull requests, merge conflicts, collaborative workflow.
• Technical SEO — understanding of fundamentals: semantic markup, Core Web Vitals, indexing, internal linking.
• Analytics & data — ability to implement tracking (GA4, Matomo or equivalent), interpret metrics and drive decisions by data.
• Appreciated skills (a real plus): React — for admin interfaces and Saa

  S platforms. Node.js — scripting, automation, internal tools. Claude API / AI agents — experience with the Anthropic API, building automated pipelines. Web

  Socket / real-time — Socket.io for multiplayer games. Build tools — Webpack, Vite or equivalent. Growth hacking / acquisition — basics of conversion funnels, A/B testing, organic acquisition strategies. Interest in e-commerce and/or media — understanding of the business challenges of our clients.