JÚNIOR
OLIVEIRA
FULL STACK DEVELOPER | UX-AWARE | END-TO-END PROJECTS
Full Stack Developer with 4+ years of experience delivering complete digital solutions — from UX/UI design to implementation and deploy. Specialist in React.js, Next.js, TypeScript, Node.js and databases.
Brazil
Local
jkoliveira3004
@gmail.com
(88) 99332-6527
Years of Experience
Projects Delivered
UPWORK TOP RATED
TRABALHO REMOTO
My passion is transforming complex ideas into simple, functional interfaces. I believe good code must go hand in hand with exceptional design.
RECENT PROJECTS
A list of my most recent projects worked on.
App Gabi I.A
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App Finan-Z
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Game Neon Bubles
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Web site Lumina
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Web Site Pet Zone
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Web Site Nexus
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LEAF App
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Code Push App
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Synera Financial App
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HiveTek Landing Page
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Agilisac WhatsApp Manage
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Mass Exodus Game
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My Lanch App
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Nexux Lub.
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View ProjectAPP STORE
Here you will find ready-made apps and systems, just buy and use as your own.
Scheduling System
Ready-to-use software solution with full source code access and quick deployment.
Inventory System
Ready-to-use software solution with full source code access and quick deployment.
PROFESSIONAL EXPERIENCE
Permit Beacon (USA)
Full Stack Front-End Developer & UX Designer
Responsible for the complete product: from UX/UI design in Figma to Front-End implementation in React.js and TypeScript. Integration with REST APIs, authentication and building a scalable design system.
T2 Educação
Senior UX Designer & Front-End Contributor
Creation of institutional pages, landing pages and sales pages. Focus on conversion, performance and design system in Figma. Alignment with marketing and development teams.
Angry Rabbits Studios (USA)
UX Designer
UX/UI projects for various agency clients. Creation of wireframes, prototypes and high-fidelity interfaces in Figma. Remote work with an American team.
Tamborete Pay
Middle Front-End Developer
Maintenance and evolution of the payment platform using React.js and TypeScript. Integration with REST APIs, dashboards and financial flows.
Mei em Foco
Middle Front-End Developer
Development of the platform and campaign landing pages. Focus on performance, responsiveness and conversion. Creation of reusable components and user experience improvement.
Software Analysis and Development
UNOPAR — Brazil
Graduated in 2020
Portuguese
Native
English
B1 - Conversational
Availability
Remote — Projects in Brazil and Abroad
Nationality
Brazilian
LET'S BUILD
SOMETHING AMAZING TOGETHER?
I'm ready for new challenges and opportunities. Let's talk about how I can add value to your team!
© 2026 Júnior Oliveira. All rights reserved.
JO_