Hi, I’m Celso Barbalho, a Full Stack Developer with a strong focus on frontend and mobile development, specializing in React, React Native, and Next.js. I’ve been delivering real-world projects in production environments, handling the full development lifecycle from gathering requirements to deployment, with a knack for performance optimization and keeping cross-functional teams aligned. I’ve built and published mobile and web applications, implemented CI/CD pipelines, automated tests, and maintained clear communication with design and product stakeholders. I continuously enhance backend and architecture skills while delivering consistent results, collaborating effectively in Agile teams and always pursuing better delivery quality and user experiences.

Celso Barbalho

Hi, I’m Celso Barbalho, a Full Stack Developer with a strong focus on frontend and mobile development, specializing in React, React Native, and Next.js. I’ve been delivering real-world projects in production environments, handling the full development lifecycle from gathering requirements to deployment, with a knack for performance optimization and keeping cross-functional teams aligned. I’ve built and published mobile and web applications, implemented CI/CD pipelines, automated tests, and maintained clear communication with design and product stakeholders. I continuously enhance backend and architecture skills while delivering consistent results, collaborating effectively in Agile teams and always pursuing better delivery quality and user experiences.

Available to hire

Hi, I’m Celso Barbalho, a Full Stack Developer with a strong focus on frontend and mobile development, specializing in React, React Native, and Next.js. I’ve been delivering real-world projects in production environments, handling the full development lifecycle from gathering requirements to deployment, with a knack for performance optimization and keeping cross-functional teams aligned.

I’ve built and published mobile and web applications, implemented CI/CD pipelines, automated tests, and maintained clear communication with design and product stakeholders. I continuously enhance backend and architecture skills while delivering consistent results, collaborating effectively in Agile teams and always pursuing better delivery quality and user experiences.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate

Language

Portuguese
Fluent
English
Fluent
Spanish; Castilian
Beginner
Italian
Beginner
German
Beginner
French
Beginner

Work Experience

Full Stack Developer at Bluma
June 1, 2025 - Present
Contributed to the development of web and mobile applications using React, Next.js, and Node.js in production environments; worked with REST API integration and feature development; participated in code reviews and iterative improvements; collaborated in Agile/Scrum with sprint-based delivery; used Git/GitHub for version control and team collaboration.
Founder & Developer at Vexel Lab (Independent Studio)
January 1, 2023 - Present
Founded and operated an independent web development studio, delivering 15+ projects for real clients across medical, mining, and corporate sectors; Maintained 100% on-time delivery with 90–95+ Google PageSpeed scores; Main stack: Next.js 15, React, TypeScript, Tailwind CSS, Framer Motion, Vercel; Applied technical SEO best practices; Managed full client lifecycle: communication, estimation, delivery, and post-launch support; Integrated tools such as Google Analytics, Microsoft Clarity, and WhatsApp Business API.
Junior Front-End Developer at Spark Mobile
January 1, 2021 - December 31, 2024
Developed web and mobile interfaces using React and React Native; Delivered features within sprint cycles following Agile methodology; Worked in existing codebases, following established patterns and standards; Adopted TypeScript to improve code quality and reduce runtime errors; Gained initial professional experience with Scrum, daily standups, and client reviews.
Mobile Developer (Junior) at MundPay
January 1, 2025 - June 1, 2025
Developed mobile screens using React Native and Redux; Integrated financial APIs with team guidance; Focused on usability and user experience improvements; Gained initial experience with automated testing using Jest.
Junior Front-End Developer at DietCash
January 1, 2022 - December 31, 2023
Built mobile application features using React Native, Expo, and Redux; Implemented a user ranking system (gamification feature); Worked with React Query for async state management.

Education

Associate Degree in Systems Analysis and Development at Cruzeiro do Sul University
January 11, 2030 - April 16, 2026

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Media & Entertainment, Professional Services, Other