Hi, I'm Tobias
a frontend engineer driven by building fast, pixel-perfect products
About me
Services
Frontend Development
Building fast, accessible interfaces with React, Next.js and TypeScript, from design handoff to production.
Mobile Apps
Cross-platform apps with React Native and Expo, shipped to the App Store and Google Play.
Pixel-Perfect UI
Turning Figma designs into clean, responsive, production-ready code.
AI Integration
Wiring up Claude and Gemini APIs, and building AI-augmented workflows into everyday development.
Architecture & Quality
Clean code, SOLID principles, and testing practices that keep codebases maintainable as they grow.
Projects
Institutional landing page for OKDA, an Argentine audiovisual production company specialized in strategic communication for businesses and brands. Animated hero, value proposition, team, services, process, video gallery, and contact sections.
Booking management platform for a ski instructor, with multilanguage support and responsive design. Clients check availability on a calendar and submit requests; the admin panel manages every reservation. Backend powered by Supabase.
La Anónima App — Mobile Retail
Official mobile app for La Anónima, one of Argentina's leading supermarket chains, built in collaboration with Globant. Translated complex retail requirements into a pixel-perfect experience: the Plus loyalty program, coupon system, product catalogs, price scanner, and online store. Secure authentication flows with encrypted token storage and AI-augmented design audits to ensure 1:1 fidelity with Figma.
Where I've worked
Frontend Developer
Globant
- ›Shipped cross-platform React Native features for La Anónima (major Argentine supermarket chain) and Farmacity (leading Argentine pharmacy chain), applying clean architecture to keep both codebases scalable.
- ›Drove daily stand-ups, sprint planning, and code reviews with designers, backend engineers, and QA, catching integration issues before release.
- ›Owned the frontend of an internal AI innovation initiative end-to-end as the sole frontend developer, building a React + Vite MVP and integrating the Gemini and Claude APIs into core product features.
- ›Coordinated App Store and Google Play submissions alongside the mobile team, preparing builds to avoid release delays.
Frontend Developer
GlobalLogic
- ›Built and shipped features in React Native (Expo) for ClaroPay, a widely used virtual wallet app for Claro customers in Argentina.
- ›Increased user engagement and streamlined in-app navigation by implementing push notifications and deep linking.
- ›Set up GitHub Actions and Jenkins CI/CD pipelines and introduced SonarQube quality gates, catching code issues before merge.
- ›Maintained and fixed bugs in the React.js-based CMS powering ClaroPay's content and configuration, enabling content updates without new app releases.
Frontend Developer
Global Wizards
- ›Built interactive, mobile-optimized interfaces in React Native, prioritizing smooth UX and performance.
- ›Secured core app functionality and user data by integrating Firebase for authentication and data storage.
- ›Kept the app stable through proactive maintenance and troubleshooting, resolving issues before they affected users.
- ›Shaped architecture decisions with the team and upheld code quality through peer reviews.
React Native Developer
AiMonkey
- ›Built new features across frontend (React Native, React.js) and backend (Node.js) for Regatta Fitness, a fitness app that reached 10,000+ downloads.
- ›Increased content sharing by integrating the GetSocial library for social media sharing functionality.
- ›Maintained production apps built with JavaScript and TypeScript, resolving issues to keep them stable for end users.
My tech stack
Frontend
Mobile
Backend & Tools
AI & Productivity
Let's talk
I'm open to new opportunities. Whether you have a question or just want to say hi — my inbox is always open.
© 2026 Tobias Marroquin