About Jon
French
Native or bilingual
English
Fluent
Spanish
Fluent
Portuguese
Basic
Experience
- FOUNTAINQA Automation Engineer | Front-end DeveloperHUMAN RESOURCESAugust 2024 - October 2025 (1 year and 2 months)Paris, FranceRecruitment SaaS platform: development of React interfaces and test automation to ensure the quality and velocity of the product team.MISSIONS- Development of user interfaces with React, TypeScript, and TailwindCSS- Creation and maintenance of the application's design system- Complete E2E test architecture with Playwright- Development of smoke tests for post-deployment validation- Integration of tests into the CI/CD pipeline via GitHub Actions- Close collaboration with developers and the QA teamACHIEVEMENTS- Reusable React components for HR modules- E2E test framework covering critical user journeys- Unit tests with Jest for each component- Improved testability of frontend code- Comprehensive technical documentationRESULTS- E2E coverage increased by 60%- Significantly reduced release validation time- Maintainable and documented frontend codeSTACK: React, TypeScript, TailwindCSS, Playwright, Jest, GitHub Actions, Linear, Figma
- Santander Consumer FinanceQA Automation Engineer | Front-end DeveloperLOGISTICS AND SUPPLY CHAINMarch 2023 - August 2024 (1 year and 5 months)Madrid, SpainWeb financial products: development of React/TypeScript interfaces with a quality-first approach, combining API integration, robust forms, maintainable components, and automated tests.MISSIONS- Development of user interfaces with ReactJS and TypeScript- Creation of adaptive designs with TailwindCSS- API integration with Axios and React Query- Implementation of complex forms with React Hook Form- Data validation with Zod- Setup of unit tests with Vitest- E2E tests to secure critical user journeys- Collaboration with designers and backend teams in Agile methodologyACHIEVEMENTS- Construction of new frontend pages and features- Faithful reproduction of Figma mockups with clean codebase- Reliable API integration between frontend and backend- More robust, maintainable, and testable components and forms- Setup of structured frontend validations with ZodRESULTS- Responsive, consistent, and intuitive interfaces- Improved reliability of forms and user journeys- Reduction of frontend regression risks- Smoother frontend/backend collaboration- More maintainable code through a quality-oriented approachSTACK: ReactJS, TypeScript, TailwindCSS, Axios, React Query, Vitest, Vite, React Hook Form, Zod, ESLint, E2E tests
- EOVO - Plateforme d'investissementFrontend Developer ReactJS | Next.js | TypeScriptLOGISTICS AND SUPPLY CHAINApril 2022 - September 2022 (6 months)Biarritz, FranceDevelopment and optimization of web applications with a focus on quality, performance, and security.MISSIONS- Creation of a reusable component library with Next.js and TailwindCSS- Development of interfaces with TypeScript and Next.js- Implementation of secure authentication with JWT tokens- Form validation for data quality- End-to-end tests with Cypress and Playwright- Unit tests with Jest- Integration of pixel-perfect Figma designsACHIEVEMENTS- Reusable component library facilitating design consistency- Next.js application with advanced features- Secure authentication system- Complete suite of E2E and unit tests- Deployment by feature with Git in AGILE methodologyRESULTS- Improved user experience and overall performance- Rapid detection and resolution of issues thanks to tests- Enhanced design consistency and maintainability- Reduced production risks and costsSTACK: Next.js, TypeScript, React.js, TailwindCSS, Cypress, Playwright, Jest, NestJs, Prisma, Figma
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Certifications
- Complete Web DeveloperZero to Mastery Academy2019