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Juan Rozo
ESEN
Senior Frontend & Mobile Developer · Open to opportunities

Frontend and mobile, from the interface to the release.

I build scalable web and cross-platform mobile applications with React Native, React, Vue, Next.js and TypeScript. I have led frontend initiatives across fintech, e-commerce, banking and consumer technology, with teams in Colombia, Canada and the US.

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Years of experience
9+Years of experience
Companies & teams
6Companies & teams
Industries
4Industries
Client countries
3Client countries

Experience

01 / Experience
  1. Mar 2025 — Present
    Remote

    Senior Mobile Developer

    Gorilla Logic · Client: Hunter Douglas

    • Develop and maintain cross-platform mobile application features for Hunter Douglas using React Native and TypeScript, delivering consistent experiences across iOS and Android.
    • Translate product requirements and UI/UX specifications into reusable components, responsive screens, navigation flows, and maintainable mobile architecture.
    • Integrate mobile features with backend services and REST APIs, implementing reliable data handling, loading states, validation, error management, and user feedback.
    • Investigate and resolve functional and performance issues, improving rendering efficiency, application stability, and the overall quality of critical user journeys.
    • Contribute to code reviews, technical discussions, automated testing, and release preparation in an Agile environment with product, design, backend and QA.
  2. Sep 2023 — Feb 2025
    Calgary, Canada

    Senior Frontend Developer

    Midas Labs

    • Designed and developed a banking application using React Native and TypeScript, focusing on performance and scalability.
    • Developed and deployed multiple projects using Next.js, improving server-side rendering, SEO, and application speed.
    • Enhanced the user interface with advanced animations, leading to a 20% improvement in user satisfaction scores.
    • Collaborated with backend teams to ensure seamless integration and optimized API consumption.
  3. Apr 2022 — Apr 2023
    Toronto, Canada

    Senior Frontend Developer

    Flahmingo

    • Contributed to the development of fintech applications, implementing secure and efficient payment flows.
    • Improved code quality and performance by introducing reusable components and TypeScript best practices.
  4. Jun 2020 — Apr 2022
    New York, USA

    Frontend Tech Lead

    Coco Mercado

    • Led the frontend team to revamp the e-commerce platform using Vue.js and Nuxt.js.
    • Directed the development of a back-office management system, increasing operational efficiency by 30%.
    • Mentored junior developers, fostering a culture of continuous learning and improvement.
  5. Aug 2019 — Jun 2020
    Bogotá, Colombia

    Senior Frontend Developer

    Zinobe

    • Developed a loan application web platform using Angular and TypeScript for small businesses in Colombia.
    • Optimized application performance, reducing load times by 25%.
  6. Aug 2016 — Aug 2019
    Toronto, Canada

    Web Application Developer

    Econtainers

    • Built and maintained the company's e-commerce platform for container sales and rentals using ReactJS and Node.js.
    • Delivered landing pages and blogs, enhancing SEO performance and user engagement.

Selected work

02 / Work
03 / About

About me

I'm Juan Guillermo Rozo, a Senior Frontend and Mobile Developer with over nine years building scalable web and cross-platform mobile applications.

My work has been in fintech, e-commerce, banking and consumer technology: production-ready features, API integration, performance improvements and close collaboration with product, design, QA and backend teams.

I have led frontend initiatives and mentored junior developers. I'm looking for a team where I can own an area of the product, and I write code with the next maintainer in mind.

[ profile photo ]
Stack & tools
  • TypeScript
  • React
  • React Native
  • Next.js
  • Vue.js
  • Nuxt.js
  • Angular
  • Node.js
  • JavaScript
  • REST APIs
  • Testing
  • Git
  • Figma
  • Agile
Education & certifications
  • 2020

    Software Engineering

    El Bosque University · Bogotá, Colombia

Impact

  • +20%

    user satisfaction after reworking the interface with advanced animations

  • +30%

    operational efficiency from the back-office I directed at Coco Mercado

  • −25%

    load times on Zinobe's lending platform

Availability
Status
Open to opportunities
Based in
Bogotá, Colombia · UTC−5
Setup
Remote · experience with teams in Canada and the US
Languages
Native Spanish · professional working English
04 / Contact

Hiring for your team?

Send me a note and I'll reply within 24 hours. You can also download the full CV.

Download CV ↓