Works

Skills

Ethos

Contact

CV

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Luis Espinoza Mobile & Web Engineer

I build high-performance experiences with React, React Native and Node.js. I deliver FinTech & EventTech apps that reach thousands of users every month.

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WORKS

Pago Fácil & Western Union

Pago Fácil & Western Union
Pago Fácil & Western UnionPago Fácil & Western UnionPago Fácil & Western UnionPago Fácil & Western UnionPago Fácil & Western UnionPago Fácil & Western UnionPago Fácil & Western UnionPago Fácil & Western UnionPago Fácil & Western Union
Pago Fácil & Western Union
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I contribute to the evolution of Pago Fácil — a digital wallet built with Western Union. With over one million downloads and hundreds of thousands of active users, I lead new features and refactors that boost performance and UX while ensuring production stability. Stack: React Native, TypeScript, Redux, REST APIs and Clean Architecture.

0-Registros

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0-Registros
typescriptnextcss3firebasenetlifyp5js

Experimental web project merging poetry, generative art and technology to explore existential questions. Built with Next.js & TypeScript (monorepo), using p5.js for dynamic visuals, Firebase backend and i18n. Crafted a minimalist immersive experience where text intertwines with real-time graphics.

Hybeans App

Hybeans App
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Hybeans App
reacttypescriptmstfirebasecss3

At Hybeans — an event management platform with social features — I designed and shipped critical modules for iOS and Android: authentication, dynamic profiles, real-time feed, push notifications, booking engine and in-app product sales. Collaborated with design, backend and QA teams to deliver releases on tight deadlines, ensuring stable performance during live events.

Filoweb

Filoweb
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Filoweb
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Interactive educational site that guides users through the history of western philosophy. Designed an engaging UI with navigable timelines, making complex ideas accessible to a wider audience.

Hybeans Web

Hybeans Web
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Hybeans Web
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On the Hybeans web platform I implemented customizable profiles, real-time booking system, payment checkout and conversion-oriented landing pages. Improved React performance through code-splitting and lazy loading, significantly reducing initial load times.

SKILLS

skills

Frontend & Mobile Development

  • React & React Native: Building modular, high-performance interfaces for web and mobile, following accessibility and SEO best practices.

  • HTML, CSS, JavaScript: Semantic, responsive and optimized code that delivers a consistent experience on any device.

  • UI/UX & Prototyping: Crafting flows and prototypes in Figma and translating them into scalable TypeScript components with CSS Modules.

  • Version Control: Proficient with Git (GitFlow, PR reviews, CI/CD) and collaboration in distributed teams.

Architecture & App Design

  • Clean Architecture & SOLID: Structuring React/React Native projects for scalability and maintainability.

  • Responsive & Accessible Design: WCAG-compliant, mobile-first experiences that reach 100% of the audience.

  • Backend-as-a-Service: Firebase (Auth, Firestore, Cloud Functions) and AWS Serverless to accelerate time-to-market.

Project Management & Collaboration

  • Agile methodologies (Scrum, Kanban) with tools like Jira or Linear for iterative delivery.

  • Acting as a bridge between business and tech, enabling informed decisions and team efficiency.

Problem Solving & Continuous Learning

  • Debugging & Tuning: Identifying bottlenecks using profiling and observability tools.

  • Continuous learning: Self-directed research and rapid adaptation to new technologies.

  • Innovation: Proposing improvements and automations that cut development time and errors.

ETHOS

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Idea explorer: from Philosophy to Engineering, I blend critical thinking and creativity to design technology that improves people's lives.

I craft digital experiences, driven by a continuous-learning mindset and passion for excellence.

Curiosity is fueled by reading, writing and art; these disciplines broaden my perspective and empower me to solve problems in innovative ways.

I operate on values of trust, transparent communication and collaboration, enabling teams to build sustainable, memorable products.