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Hi, I'm João Abel Costa Junior, a dedicated Frontend Developer based in Lisboa, Portugal. I have a passion for creating engaging and functional web applications, leveraging my skills in React Native, AngularJS, and various web technologies. My journey started with my personal project Pocket Rotom, which ignited my enthusiasm for web development and Pokémon community involvement. With experience working remotely for Proside and organizing Pokémon tournaments, I balance technical expertise with community engagement and teamwork. I continuously aim to improve and adapt, building projects from interactive React interfaces to comprehensive event websites, always fostering creativity and innovation in my work.…Hi, I'm João Abel Costa Junior, a dedicated Frontend Developer based in Lisboa, Portugal. I have a passion for creating engaging and functional web applications, leveraging my skills in React Native, AngularJS, and various web technologies. My journey started with my personal project Pocket Rotom, which ignited my enthusiasm for web development and Pokémon community involvement. With experience working remotely for Proside and organizing Pokémon tournaments, I balance technical expertise with community engagement and teamwork. I continuously aim to improve and adapt, building projects from interactive React interfaces to comprehensive event websites, always fostering creativity and innovation in my work.

João Abel Costa Junior

Front-End Developer, Web Developer, Programmer, +1

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Hi, I'm João Abel Costa Junior, a dedicated Frontend Developer based in Lisboa, Portugal. I have a passion for creating engaging and functional web applications, leveraging my skills in React Native, AngularJS, and various web technologies. My journey started with my personal project Pocket Rotom, which ignited my enthusiasm for web development and Pokémon community involvement. With experience working remotely for Proside and organizing Pokémon tournaments, I balance technical expertise with community engagement and teamwork. I continuously aim to improve and adapt, building projects from interactive React interfaces to comprehensive event websites, always fostering creativity and innovation in my work.…Hi, I'm João Abel Costa Junior, a dedicated Frontend Developer based in Lisboa, Portugal. I have a passion for creating engaging and functional web applications, leveraging my skills in React Native, AngularJS, and various web technologies. My journey started with my personal project Pocket Rotom, which ignited my enthusiasm for web development and Pokémon community involvement. With experience working remotely for Proside and organizing Pokémon tournaments, I balance technical expertise with community engagement and teamwork. I continuously aim to improve and adapt, building projects from interactive React interfaces to comprehensive event websites, always fostering creativity and innovation in my work.

Available to hire

Hi, I’m João Abel Costa Junior, a dedicated Frontend Developer based in Lisboa, Portugal. I have a passion for creating engaging and functional web applications, leveraging my skills in React Native, AngularJS, and various web technologies. My journey started with my personal project Pocket Rotom, which ignited my enthusiasm for web development and Pokémon community involvement.

With experience working remotely for Proside and organizing Pokémon tournaments, I balance technical expertise with community engagement and teamwork. I continuously aim to improve and adapt, building projects from interactive React interfaces to comprehensive event websites, always fostering creativity and innovation in my work.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Portuguese

Fluent

English

Advanced

Spanish; Castilian

Intermediate

Work Experience

Junior Frontend Developer at Proside Concepção e Implementação De Soluções Informáticas, Lda.

July 1, 2021 - Present

Working remotely as a Junior Frontend Developer, I contribute to projects that enhance relationships between companies and consumers. Key projects include Keepr, a personality-based mobile matchmaking app built with React Native and API integration, and Próximo, a queue management system used across Portugal. I implement UX/UI designs from Figma, develop React Native screens and features, maintain and improve services using REST APIs, and use Git for version control.

Website Developer at Portugal Battle League

April 1, 2021 - August 29, 2025

Developed and maintained the Portugal Battle League website using Wordpress, including online store functionality and an event management system to support Pokémon and Nintendo-related tournaments and events.