I am a Front-end and Full-stack Developer with extensive experience in React, TypeScript, Vite, Next.js, and Django. I specialize in building reusable component libraries, optimizing performance, and maintaining high-quality code with testing practices such as Jest, React Testing Library, and Vitest. I follow SOLID principles and aim to ensure clean and efficient delivery in all my projects. I am proactive, adaptable, and possess strong leadership qualities, ready to contribute immediately. Throughout my career, I have worked in diverse sectors including government, agriculture, media, and software development. My experience ranges from developing UI libraries and mobile apps to managing backend integrations and leading teams as a Scrum Master. I am committed to continuous learning and delivering valuable solutions that meet client needs effectively.

Javier Toussent Fis

I am a Front-end and Full-stack Developer with extensive experience in React, TypeScript, Vite, Next.js, and Django. I specialize in building reusable component libraries, optimizing performance, and maintaining high-quality code with testing practices such as Jest, React Testing Library, and Vitest. I follow SOLID principles and aim to ensure clean and efficient delivery in all my projects. I am proactive, adaptable, and possess strong leadership qualities, ready to contribute immediately. Throughout my career, I have worked in diverse sectors including government, agriculture, media, and software development. My experience ranges from developing UI libraries and mobile apps to managing backend integrations and leading teams as a Scrum Master. I am committed to continuous learning and delivering valuable solutions that meet client needs effectively.

Available to hire

I am a Front-end and Full-stack Developer with extensive experience in React, TypeScript, Vite, Next.js, and Django. I specialize in building reusable component libraries, optimizing performance, and maintaining high-quality code with testing practices such as Jest, React Testing Library, and Vitest. I follow SOLID principles and aim to ensure clean and efficient delivery in all my projects. I am proactive, adaptable, and possess strong leadership qualities, ready to contribute immediately.

Throughout my career, I have worked in diverse sectors including government, agriculture, media, and software development. My experience ranges from developing UI libraries and mobile apps to managing backend integrations and leading teams as a Scrum Master. I am committed to continuous learning and delivering valuable solutions that meet client needs effectively.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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Language

Spanish; Castilian
Fluent
English
Intermediate
Portuguese
Beginner

Work Experience

Front-end Developer at QA-BIT
December 1, 2024 - Present
Developed reusable UI components and libraries including adaptations of HeroUI. Created dynamic stepper and hiring flow components, integrated backend for document management such as receipts and notifications. Utilized React, TypeScript, Monorepo architecture, AWS, NextUI, Tailwind, and Zustand.
Mobile Developer at Powerload
February 28, 2025 - August 21, 2025
Contributed to code analysis for version 2 of the app, improved login and trip features, and delivered the production APK. Technologies used included React Native, Expo, Zustand, and Firebase.
Manual QA at A11ysolutions
February 28, 2025 - August 21, 2025
Performed functional and cross-browser testing for Billshark's new web application using BrowserStack.
Full-stack Developer at HelloWorld SpA
September 30, 2024 - August 21, 2025
Developed modules for clients in Chile including Camanchaca, Acofotag, and Agroforestry Contractors Magazine. Managed deployment and maintenance processes using Django, Bootstrap, PostgreSQL, Celery, and AWS.
Front-end Developer at KnBases
July 31, 2024 - August 21, 2025
Built Microsoft Teams and web applications for incident/request management for US clients. Worked with React, FluentUI, Axios, and JWT.
Front-end Developer at Confia
March 31, 2024 - August 21, 2025
Developed news widget and breadcrumb UI components using React, TypeScript, Next.js, Storybook, and Styled Components.
Scrum Master & Dev Team Lead at CITMATEL
June 30, 2024 - August 21, 2025
Led development and Scrum process for an Organizational Process Management System with 22 modules including 3 major reports. The system was deployed on a private network. Technologies included Django, jQuery, and Bootstrap.
Scrum Master & Dev Team Lead at Azutecnia
August 31, 2023 - August 21, 2025
Managed development and Scrum activities for a business process management system with 20 modules deployed on a Cuban intranet. Used Next.js, React, JWT, and Material UI.
Front-end Developer at Alsoftpro
June 30, 2022 - August 21, 2025
Developed process management system consisting of 7 modules for the Hydraulic Company. Utilized React, TypeScript, Material UI, and Axios.
Full-stack Developer at Ministry of Agriculture
May 31, 2019 - August 21, 2025
Worked on Population Care Management System and related modules deployed at MINAG, Cuba, using JavaScript, jQuery, Symfony, and PHP.
Webmaster & UI Designer at UCCFD “Manuel Fajardo”
July 31, 2017 - August 21, 2025
Served as editorial assistant for the scientific journal “Acción”. Responsible for UI and website design and maintenance using OJS, Dreamweaver, InDesign, and Photoshop.
Webmaster & UI Designer at INDER
August 31, 2021 - August 21, 2025
Developed and maintained institutional websites using Moodle, WordPress, and Photoshop.
Marketing Specialist (SEO, CMM, Webmaster) - Freelance at Freelance
December 31, 2022 - August 21, 2025
Executed SEO strategies, content marketing management, and webmaster duties for projects including Cuba Guiding, Excelencias del Motor, and Agencia 360 WOW among others.
Front-end Developer at QA-BIT
December 1, 2024 - Present
Developed reusable UI library components adapting HeroUI, created dynamic stepper and hiring flow components. Integrated backend for Document Management involving receipts, remittances, and notifications using React, TypeScript, Monorepo structure, AWS, NextUI, Tailwind, and Zustand.
Mobile Developer at Powerload
February 28, 2025 - August 21, 2025
Contributed to code analysis for version 2 of the application; improved login and trip features and delivered the production APK using React Native, Expo, Zustand, and Firebase.
Manual QA at A11ysolutions
February 28, 2025 - August 21, 2025
Performed functional and cross-browser testing on Billshark’s web application using BrowserStack.
Full-stack Developer at HelloWorld SpA
September 30, 2024 - August 21, 2025
Developed modules for clients such as Camanchaca, Acofotag, and Agroforestry Contractors Magazine using Django, Bootstrap, PostgreSQL, Celery, and AWS. Responsible for deployment and maintenance for Chilean clients.
Front-end Developer at KnBases
July 31, 2024 - August 21, 2025
Developed Microsoft Teams and web applications focused on incident/request management for US clients using React, FluentUI, Axios, and JWT.
Front-end Developer at Confia
March 31, 2024 - August 21, 2025
Developed news widget and breadcrumb UI components using React, TypeScript, Next.js, Storybook, and Styled Components.
Scrum Master & Dev Team Lead at CITMATEL
June 30, 2024 - August 21, 2025
Led development and Scrum process for Organizational Process Management System with 22 modules and 3 major reports, deployed on a private network using Django, jQuery, and Bootstrap.
Scrum Master & Dev Team Lead at Azutecnia
August 31, 2023 - August 21, 2025
Led the development of a business process management system with 20 modules deployed on a Cuban intranet using Next.js, React, JWT, and Material UI.
Front-end Developer at Alsoftpro
June 30, 2022 - August 21, 2025
Developed a Process Management System for the Hydraulic Company consisting of 7 modules using React, TypeScript, Material UI, and Axios.
Full-stack Developer at Ministry of Agriculture
May 31, 2019 - August 21, 2025
Developed and maintained the Population Care Management System and related modules using JavaScript, jQuery, Symfony, and PHP for the Cuban Ministry of Agriculture.
Webmaster & UI Designer at UCCFD “Manuel Fajardo”
July 31, 2017 - August 21, 2025
Designed and maintained UI and website including editorial assistance for scientific journal 'Acción' using OJS, Dreamweaver, InDesign, and Photoshop.
Webmaster & UI Designer at INDER
August 31, 2021 - August 21, 2025
Developed and maintained institutional websites using Moodle, WordPress, and Photoshop.
Marketing Specialist (SEO, CMM, Webmaster) at Freelance
December 31, 2022 - August 21, 2025
Implemented SEO and content marketing management projects for clients including Cuba Guiding, Excelencias del Motor, Agencia 360 WOW, among others.

Education

Computer Engineering at Technological University of Havana
January 11, 2030 - January 1, 2024
Entrepreneurship Workshop at CubaEmprende Project
January 11, 2030 - August 21, 2025
Computer Engineering at Technological University of Havana
January 11, 2030 - January 1, 2024
Entrepreneurship Workshop at CubaEmprende Project
January 11, 2030 - August 21, 2025

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Government, Education, Agriculture & Mining, Media & Entertainment, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
See more