Josue Barrios

Frontend Developer

Full-stack Engineer

Mobile Developer

Québec City, QC, CA

Top Earner

React

Node.js

Redux

React Native

Python

Natural Language Processing

Computer Vision

Tensorflow

MongoDB

Next.js

Github

CI/CD

Dart

Web Development

Mobile Development

Swift

iOS Development

XCode

UIKit

AWS Amplify

Software Development

ARKit

Objective-C

SwiftUI

Available for hire fromNegotiable

Full-Time Roles

Contracts

React | Vite | Next | Full Stack | React Native

Highly skilled Full Stack Developer proficient in React, React Native Developer with 8 years of experience in developing cross-platform mobile applications. Proficient in JavaScript, React, Next.js, Shadcn/ui, TailwindCss, Vite and React Native frameworks. Strong problem-solving abilities and a passion for creating user-friendly and visually appealing mobile applications. Committed to delivering high-quality code and meeting project deadlines.

Projects

Coffee Shop

CoffeeCircle.com is the shopping platform for coffee Stack: React, Next.js, Typescript, TailwindCss, Shadcn/ui, MongoDB

Insite Health

InSite is a comprehensive psychiatric care provider for children and adults. Specializing in medication management, psychiatric evaluations Stack: React, Next.js, Typescript, MongoDB, React Native, SanitySee More

Tattme

TattMe is the premier business management platform for the tattoo industry! With TattMe, tattoo Artists can manage their business like a pro! No more having to use multiple apps to run your business, you can do everything from a single platform.See More

Freemix Mobile app

Freemix is a simple yet powerful way to play with your creativity. - Developed and maintained Android and iOS applications using React Native, collaborating with cross-functional teams to ensure successful project delivery. - Participated in the full app development lifecycle, from conceptualization to deployment, while adhering to coding standards and best practices. - Worked closely with UI/UX designers to transform wireframes and mockups into visually appealing and intuitive user interfaces. - Integrated third-party libraries and APIs to enhance application functionality, such as social media sharing, payment gateways, and analytics tools. Skills: React Native, React, Node.js, MongiDB, CI/CDSee More

AR Measure Mobile App

This is Measure Mobile Application to use AR Skills: React Native, AI, Computer Vision, AR/VR, Firebase,

Smart E-Scooter

Scooter application software is an intelligent electronic device application software, mainly used for communication and control, the lower computer is a Bluetooth chip; Connect to the device via Bluetooth. Software interface navigation is simple, easy to use, refined. Adopt a new generation of high-performance interface engine, bring users calm and smooth use experience. Skills: React Native , Firebase. ReactSee More

Work History

Senior Full Stack Developer

InSite HealthApr 2024 - Sep 2024 • 6 mos• Built interactive and dynamic user interfaces using React.js, leveraging reusable and maintainable components. • Designed and implemented force-directed graph visualizations and workflows using React Flow. • Customized nodes, edges, and layouts in React Flow to create highly interactive and intuitive diagrams. • Integrated MongoDB with React Flow to dynamically generate and visualize graph data in real-time. • Developed and optimized Cypher queries for retrieving, updating, and managing graph-based data structures. • Optimized rendering performance using techniques like memoization and efficient lifecycle management. • Collaborated in an Agile environment, using GitHub for version control and CI/CD pipelines for deployment. • Delivered scalable and maintainable frontend solutions tailored to project requirements and client goals

Senior Frontend Developer

The OrgPart-time EmployeeJan 2023 - Sep 2023 • 9 mos• Built and maintained feature-rich React.js applications with a focus on scalability and performance. • Developed interactive graph-based visualizations using React Flow, incorporating custom components and real-time data updates • Utilized Neo4j graph database for advanced data modeling and implemented efficient Cypher queries to handle relationship-heavy datasets. • Designed seamless integrations between Neo4j and React Flow to visualize and explore complex data structures dynamically. • Created responsive and pixel-perfect UI components, ensuring compatibility across devices and browsers. • Collaborated with cross-functional teams in Agile settings, delivering high-quality features within tight deadlines. • Used Git for version control and Docker to streamline the development and deployment process. • Focused on writing clean, maintainable, and well-documented code while adhering to best practices in software engineering. • Contributed to system architecture discussions, ensuring efficient database interactions and front-end performance optimization.

Full Stack Developer

Loop FinanceFull-time EmployeeFeb 2020 - Jun 2022 • 2 yrs 5 mos• Develop number of smart contract and deploy on truffle and main net • Develop Keplr wallet and implement Bridge function • Integrate wallet connect using web3 and ethers library • Build a Typescript + React JS, with Node.js + Express.js +Mongo backend • Build react.js component using bootstrap • Build pixel-perfect UI and fully responsive page • Using Redux-Thunk for state management and integrating to backend • Setup docker environment for development and setup server on AWS ec2 • Using PostgreSQL for faster speed of huge number of requests • Extensively utilized GitHub for version control in an agile development environment • Developed and implemented blockchain metaverse using Hyperledger Fabric, Go-Ethereum, or other open-source frameworks. • Designed and developed smart contracts to be deployed on the blockchain network in accordance with business requirements. • Analyzed user stories and designed architecture for implementing new features related to blockchain technology. • Participated in peer code reviews and provided feedback to peers as well as mentored less experienced developers. • Documented design decisions and participated in architectural review meetings when applicable.

Full Stack Developer

TattemePart-time EmployeeJun 2019 - Mar 2021 • 1 yr 10 mos• Developed cross-platform mobile applications using React Native framework for iOS and Android platforms. • Collaborated with a team of designers and backend developers to implement UI designs and integrate APIs. • Implemented complex features and functionalities using Flutter widgets and custom UI components. • Integrated Firebase services for authentication, database, and push notifications. • Optimized application performance by addressing performance bottlenecks and reducing loading times. • Conducted unit testing and bug fixing to ensure application stability and quality. • Actively participated in agile development processes, including daily stand-ups and sprint planning meetings. • Communicated regularly with clients to gather requirements, provide progress updates, and address feedback.

Reviews

Exceeds ExpectationsRecommended by clients 1 times.

Top EarnerHas earned $10k+ on Pangea.

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Education

HEC Montreal

Bachelor Of Engineering Software, Computer ScienceMay 2010 - Jul 2014

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