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Frontend Developer
Hi, I'm Oswaldo Alvarez
About me
Web and Mobile Developer with +6 years of experience in fintech, crypto, and healthcare products. I worked on the first mobile app for InvertirOnline using React Native and led the development of RipioTrade from scratch, supporting the team in its migration from native technologies. I enjoy working in a team, sharing knowledge, and adding value in high-performance environments. Experience with multicultural teams. Looking for simple solutions to not so simple problems.
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Tech stack
JavaScriptTypeScriptReact (Hooks)Next.jsReact NativeAgents / Multi-Agents / SkillsRAGMCPWebSocketRedux ToolkitReduxZustandTanStack QueryAxiosJestReact Testing LibraryHTML5CSS3SassTailwind CSSAtomic DesignStorybookGit (GitHub / GitLab)Scrum / Jira
Work experience
React / React Native / AI Engineer
Mar 2026 - Present · 4 mosFreelance (Self employed)
Remote
Building web, mobile, and AI-powered solutions as a freelancer.
- - React, React Native, and AI engineering.
- - End-to-end delivery for digital products.
React / React Native / AI Engineer
Aug 2025 - Feb 2026 · 7 mosEstable IO · Full-time
Remote
I have been working on:
- - Wallet: maintenance and new features to buy, sell, convert, and send crypto.
- - IPP: new greenfield MVP built from scratch with end-to-end implementation.
React Native Developer
Apr 2022 - Jan 2025Ripio
Remote
Development and maintenance across key Ripio Wallet initiatives.
- - TAG: receive and send crypto by tag.
- - Access/Core: KYC, wallet access flows, bug fixing, and feature development.
- - DesignOps: creation of Himalaya Design System component library.
- - RipioTrade: implemented from 0% to 100% with BitcoinTrade integration.
Projects
job-alert-bot
TypeScriptNo repository description provided yet.
Published: 6/20/2026Stars: 0Last update: 7/1/2026
oswaldo-virtual-cv
TypeScriptNo repository description provided yet.
Published: 2/22/2026Stars: 0Last update: 6/21/2026
spherag-tech-test
TypeScriptNo repository description provided yet.
Published: 3/24/2026Stars: 0Last update: 6/16/2026