
Mauricio Ize
Verified Expert in Engineering
Full-stack Developer
Seattle, WA, United States
Toptal member since June 29, 2021
Mauricio is a full-stack developer with a proven record of delivering high-quality software in collaborative environments. His preferred tech stack includes Java, Spring Framework, NestJS, React, and React Native, which he uses to build web, mobile, and server-side applications. With 10 years of industry experience and a computer science background from the University of Wisconsin and UFRGS, Mauricio is well-equipped to support end-to-end development needs.
Portfolio
Experience
- Web - 10 years
- Databases - 10 years
- JavaScript - 10 years
- React Native - 5 years
- Node.js - 5 years
- TypeScript - 5 years
- React - 5 years
- Google Cloud - 3 years
Preferred Environment
MacOS
The most amazing...
...thing I developed is a customizable audio-delivery feature that has helped thousands of users receive exercise cues adapted to their network speed.
Work Experience
Senior Software Engineer
Hinge Health
- Led the development of multiple projects within an agile team, collaborating closely with product owners, gathering requirements, and delivering features across a microservice-based system and mobile application.
- Developed the audio playback system for the mobile application, from design to gradual rollout via feature flags. Mentored other engineers and merged changes across multiple microservices and front-end integration.
- Delivered a custom video player that met product and UX requirements, documented technical decisions, and coordinated across teams, creating a reusable component across the mobile application that reduced development time.
Senior Software Engineer
FullStack Labs
- Implemented an asynchronous video-processing module using BullMQ and a third-party video service to automate generation of adaptive streaming video.
- Added closed-caption support for video by standardizing VTT, automating ingestion, and updating iOS and Android players to deliver consistent UX and improved accessibility.
- Integrated an asset-service microservice into the system, configuring containerization with Docker Compose, enabling Kafka event processing, and connecting a CDN via webhook for seamless content delivery.
Experience
Group Subscription Application
The app's front end provides a great user experience and follows the guidelines for Material Design. I designed and prototyped the application screens and implemented them using React Native. I also implemented the serverless REST API using Google Cloud Functions to handle all the traffic and manage payments, authentication, and notifications. I implemented each endpoint to provide all the data for the front-end application while following the requirements, and used 3rd-party APIs to provide additional services. It was created with Google Cloud Services and TypeScript.
Computer Vision Application
Audio Stream Delivery
Education
Bachelor's Degree in Computer Engineering
Federal University of Rio Grande do Sul - Porto Alegre, Rio Grande do Sul, Brazil
International Academic Proogram in Computer Science in Computer Science
University of Wisconsin - La Crosse, WI, United States
Certifications
GoStack
RocketSeat
PHP Application Development
South University of Santa Catarina
Web Design
Microlins
Computer Electronics
Núcleo de Educação Profissional Kirana Lacerda
Programming Logic
Microlins
Skills
Libraries/APIs
React, Node.js, Sockets, WebRTC, Socket.IO, OpenCV, WebGL, OpenGL
Tools
Git, Webpack, Figma, React Apollo, Docker Compose, Sentry
Languages
JavaScript, TypeScript, HTML, CSS, HTML5, CSS3, GraphQL, Java, C++, PHP
Frameworks
React Native, Material UI, Jest, Spring, NestJS
Platforms
Mobile, Firebase, Amazon Web Services (AWS), Web, Docker, WordPress, AWS Lambda, Apache Kafka
Paradigms
Test-driven Development (TDD), Split Testing
Storage
Databases, PostgreSQL, MongoDB, MySQL, Redis, Google Cloud, Amazon DynamoDB, Database Structure
Other
APIs, Web Development, CI/CD Pipelines, Internet of Things (IoT), Styled-components, User Interface (UI), Responsive Design, Apollo Server, Apollo, Google Cloud Functions, Webhooks, Algorithms, Data Structures, 3D Graphics, Image Processing, Compilers
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