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Franklin – Java, React Native, Typescript, experts in Lemon.io

Franklin

From Guatemala (UTC-6)flag

Back-end Web Developer
Mobile Developer|Senior

Franklin – Java, React Native, Typescript

Franklin is a senior mobile engineer with 8 years of experience, specializing in React Native, JavaScript, and TypeScript. He has strong skills in native iOS development, Java/Kotlin back-end, and cloud platforms. Screenings confirm clear communication, leadership in mentoring, and a collaborative, product-focused mindset. He holds certifications in cloud engineering and AI deep learning.

8 years of commercial experience in
Cloud computing
Design
Modeling software
Main technologies
Java
6 years
React Native
6 years
Typescript
6 years
Swift
4 years
SwiftUI
4 years
Spring Boot
4 years
React
5 years
Additional skills
Kotlin
GCP
AWS
Python
UIKit
Node.js
Next.js
GraphQL
JavaScript
Direct hire
Possible
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Experience Highlights

Senior Mobile Engineer
Oct 2024 - Ongoing1 year 6 months
Project Overview

A mobile health platform that enables users to monitor their health through recurring lab testing, expert analysis, and personalized recommendations. The app integrates with popular lifestyle services and incorporates AI-powered assistants to provide tailored diet plans, training programs, and health insights. It helps users proactively manage their well-being and make informed decisions about their lifestyle.

Project gallery:
Portfolio example for Function Health Mobile App by Franklin, Senior Mobile Engineer
Portfolio example for Function Health Mobile App by Franklin, Senior Mobile Engineer
Portfolio example for Function Health Mobile App by Franklin, Senior Mobile Engineer
Responsibilities:

● Developed AI chat features and integrated CopilotKit into the React Native mobile app to connect AI services with the user experience; ● Planned and set up the React Native project to support the development lifecycle with AI code generation tools; ● Collaborated with stakeholders to gather business requirements and improve the mobile app experience; ● Configured CI/CD pipelines and integrated AI agent assistants to improve code quality; ● Designed mobile app architecture for core components such as navigation, deep linking, and interactive questionnaires.

Project Tech stack:
React Native
Typescript
Senor Mobile Engineer
Oct 2022 - Oct 20242 years
Project Overview

A mobile self-service application that allows users to manage their telecommunications services, including mobile plans, home internet, billing, and account settings. The app also supports smart home device management, enabling users to monitor and control connected devices from a single platform. It improves customer experience by simplifying service management and providing real-time access to account information.

Project gallery:
Portfolio example for My Telus Mobile App by Franklin, Senor Mobile Engineer
Portfolio example for My Telus Mobile App by Franklin, Senor Mobile Engineer
Portfolio example for My Telus Mobile App by Franklin, Senor Mobile Engineer
Responsibilities:

● Led and mentored a group of 4 junior and mid-level developers to deliver projects from scratch for multiple clients; ● Worked on the architecture of the SellNow and My Telus mobile apps using native Swift iOS development; ● Published iOS and Android apps to the App Store and Google Play for production; ● Configured the app to send logs to Sentry to monitor production performance and debug issues, improving error detection by 80% and reducing bug backlog by 90%; ● Reduced mobile app workload by 60% by implementing GCP Cloud Functions for asynchronous task processing; ● Deployed microservices in GCP and worked on real-time communication using Socket.io; ● Implemented Google Analytics to collect and track user interactions within the app.

Project Tech stack:
Swift
SwiftUI
UIKit
GCP
Node.js
Senior Software Engineer
Sep 2021 - Nov 20221 year 2 months
Project Overview

A backend platform for a telecommunications provider that supports core business operations such as payments, work orders, and subscription management. The system is built using microservices and cloud technologies to ensure scalability, reliability, and efficient request processing across multiple client services.

Responsibilities:

● Developed asynchronous services using event-driven architecture; ● Migrated services from on-premises infrastructure to Google Cloud Platform.

Project Tech stack:
Java
Node.js
Spring Boot
Full-Stack Software Engineer
Mar 2019 - Jul 20212 years 3 months
Project Overview

An online booking platform that enables users to reserve hotel rooms and entertainment experiences, including shows, through a unified interface. The system supports real-time availability, seat selection, and seamless checkout across multiple websites. It enhances the customer booking experience by providing a consistent and efficient reservation flow.

Project gallery:
Portfolio example for MGM Resorts by Franklin, Full-Stack Software Engineer
Portfolio example for MGM Resorts by Franklin, Full-Stack Software Engineer
Portfolio example for MGM Resorts by Franklin, Full-Stack Software Engineer
Responsibilities:

● Developed backend services to handle room and show reservations across MGM Resorts websites; ● Implemented client applications using React and Next.js, including seat map reservation features; ● Debugged and resolved application issues to ensure stable performance; ● Developed a cart component compatible across different pages and booking flows; ● Integrated a component library across multiple MGM websites.

Project Tech stack:
React
Next.js
GraphQL

Education

2021
Engineering in Systems and Computer Sciene
Bachelor's
2022
Associate Cloud Engineer
Certificate
2020
AI Deep Learning Specialization
Certificate

Languages

Spanish
Advanced
English
Advanced

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