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Majo ZelayaMZ
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Majo Zelaya

@majozelaya

Frontend Developer at Tsoft for Movistar, who launched an employee platform now used by over 4,000 people.

Argentina
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At Tsoft, I develop interfaces and features for Movistar’s internal platforms, collaborating with the UX team on designs and user experience. I built Pronos end to end, from UI implementation to production launch; the employee entertainment platform reached over 4,000 users.

For Beneficios, I collaborated on refactoring the frontend repository, turning components into reusable elements and rolling out a new look and feel with new features. I also implemented Storybook to document and centralize UI components across projects.

At Tennis Shop, I developed and maintained interface features for a sports equipment e-commerce platform, building responsive, cross-browser interfaces with React. Earlier, at Enciende tu Luz, I collaborated on new e-commerce UI features and implemented reusable components with React and Chakra UI.

At TACH – Carga al Toque, I developed back-office UI features for a digital wallet and implemented the mobile app’s balance screen with React Native and Redux. I also integrated Google Tag Manager and Google Analytics to track user events.

Experience

Work history, roles, and key accomplishments

TS
Current

Front-end Developer

Tsoft

Jul 2025 - Present (1 year 3 months)

Developed and implemented new interfaces and features for Movistar's internal platforms, collaborating with the UX team. Built an internal football-themed entertainment platform reaching over 4,000 users and refactored the benefits platform frontend.

TS

Front-end Developer

Tennis Shop

Mar 2023 - Sep 2024 (1 year 6 months)

Developed and maintained user interface features for an e-commerce platform specialized in sports equipment. Built responsive, cross-browser interfaces using HTML, CSS, JavaScript and React.

EL

Front-end Developer

Enciende tu Luz

May 2022 - Feb 2023 (9 months)

Developed and collaborated on new UI features for an e-commerce platform selling natural medicine products. Implemented reusable components with React and Chakra UI, improving consistency across the product catalog and checkout flow.

TT

Front-end Developer

TACH – Carga al Toque

Nov 2021 - Aug 2022 (9 months)

Developed new user interface features for the back-office of a digital wallet oriented to merchants. Implemented the balance screen in the mobile application using React Native and Redux, and integrated Google Tag Manager and Google Analytics.

Education

Degrees, certifications, and relevant coursework

Udemy logoUD

Udemy

Modern React Course, React

2020 - 2021

Completed a modern React course covering React Hooks and component-oriented architecture.

Udemy logoUD

Udemy

JavaScript & Node Master Course, JavaScript and Node

2020 - 2020

Completed a JavaScript and Node master course covering ES6, functional JavaScript, and Node Package Manager.

Udemy logoUD

Udemy

Git Course, Git

2020 - 2020

Completed a Git course covering Git, Bash, and GitHub.

Udemy logoUD

Udemy

Complete Web Design Course, Web Design

2020 - 2020

Completed a complete web design course covering HTML, CSS, and Bootstrap.

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