Ruben Arenhardt
@rubenarenhardt
Junior software developer building end-to-end web and mobile apps across the stack.
BrazilWhat I'm looking for
I’m a junior software developer with hands-on experience shipping web and mobile applications end-to-end. I focus on building and maintaining production-ready systems, moving quickly from concept to delivery.
In production, I’ve maintained a React Native app backed by Node.js and MongoDB. I’ve also adapted an existing system to comply with new tax regulations, fixed bugs, and migrated payment methods to a proprietary ecosystem.
I build cross-platform products with Flutter (Dart), including apps built from scratch and Flutter Web deployments (Vercel). I’m comfortable managing app releases too—handling build management and publishing on the App Store and Google Play.
I work across the stack with JavaScript/TypeScript, React, Vue.js, PHP/Laravel, and REST API integration patterns. I use daily AI-assisted development with tools like Claude Code, plus Docker, Cypress, Git/GitHub, and databases including PostgreSQL, MongoDB, MySQL, and Firebase/Firestore to deliver features faster and more reliably.
Experience
Work history, roles, and key accomplishments
Software Developer
Imply
Feb 2026 - Present (5 months)
Maintained and evolved a production React Native app integrated with a Node.js backend and MongoDB. Adapted the system for new tax regulations and resolved bugs, including migrating payment methods to a proprietary ecosystem.
Software Developer - Innovation
Imply
Feb 2026 - Present (5 months)
Maintained and evolved a production React Native app integrated with a Node.js backend and MongoDB. Adapted the system to comply with new tax regulations and resolved bugs, including migrating payment methods to a proprietary ecosystem.
New Talents Program
Imply
Aug 2025 - Feb 2026 (6 months)
Built web apps as part of weekly innovation challenges using native HTML/CSS/JS and frameworks including Vue.js and Laravel. Developed three Flutter apps from scratch and applied Docker-based containerization, Cypress automated testing, and PostgreSQL.
Intern & Developer
IFSul
Jan 2022 - Jan 2023 (1 year)
Developed a Java system to process and store data for an educational games project focused on biology.
Intern & Developer - EducaIF Project
IFSul
Jan 2022 - Jan 2023 (1 year)
Developed a Java system to process and store data for an educational games project focused on biology.
English Instructor
UPTIME
Jan 2024 - Present (2 years 6 months)
Taught English using interactive immersion methods, coaching speaking and writing skills.
Education
Degrees, certifications, and relevant coursework
Univates
Technologist in Systems Analysis and Development, Systems Analysis and Development
2025 -
Technologist in Systems Analysis and Development (in progress) at Univates.
Univates
Technologist, Systems Analysis and Development
2025 -
Technologist in Systems Analysis and Development at Univates (in progress).
IFSul (Venâncio Aires)
Technical Diploma, Informatics
Completed a Technical Diploma in Informatics (integrated with high school) at IFSul in 2023.
IFSul - Venâncio Aires
Technical Diploma in Informatics, Informatics
Completed a Technical Diploma in Informatics at IFSul (integrated with high school).
Tech stack
Software and tools used professionally
Availability
Location
BrazilAuthorized to work in
Job categories
Skills
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