About Christian Karl
Spanish
Native or bilingual
English
Fluent
German
Conversational
Experience
- Formación Ninja,Frontend DeveloperJune 2025 - September 2025 (3 months)Barcelona, Spain• Led the frontend development and design of Formación Ninja, a React Native mobile application that enables users to prepare for Spanish civil service exams by completing practice tests and tracking their progress.
- StensulFrontend DeveloperSOFTWARE PUBLISHINGJanuary 2020 - March 2025 (5 years and 2 months)Buenos Aires, Argentina• Took active part in the migration from Vue2 (Options API) to Vue3 (Composition API), enhancing performance and maintainability.• Implemented a new design system across multiple sections of the application, ensuring UI consistency and scalability.• Owned and maintained the company's frontend XSS filtering system• Worked along with QA, Product, and Design teams to define requirements, set deadlines, and ensure high-quality outcomes.
- Ministerio de Producción,Frontend DeveloperSOFTWARE PUBLISHINGDecember 2016 - January 2020 (3 years and 1 month)Buenos Aires, Argentina• Contributed to React projects aimed at supporting the growth of small industries in Argentina.• Developed and maintained webpages using HTML, CSS, andjQuery, ensuring responsive and accessible designs.
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Education
- Comunicación AudiovisualUniversidad Nacional de La Plata (UNLP)2019Comunicación Audiovisual