Juscyllan Santana Queiroz, Developer in Maceió - State of Alagoas, Brazil
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Juscyllan Santana Queiroz

Verified Expert  in Engineering

Software Developer

Maceió - State of Alagoas, Brazil

Toptal member since January 8, 2019

Expertise
JavaScriptNode.jsMongoDBReduxReact.jsGraphQLTypeScriptMySQLPostgreSQLAngularJSIonicJavaGISSpringHibernate
Bio

With a passion for innovation and technology and 9 years of development experience, Juscyllan is a skillful full-stack JavaScript developer focused on mobile apps with React Native. He is technically adept in using modern JavaScript and React Native, GraphQL, React, Express.js/Hapi.js, and MongoDB to help deliver the best-looking, performant mobile applications.

Portfolio

Kujhy
MySQL, PostgreSQL, Sketch, User Interface (UI), HTML, Jest, MongoDB, REST...
ZUQ
CouchDB, Node.js, Apache Kafka, Hadoop, PostgreSQL, Hibernate, Spring, JSF, GIS...

Experience

  • Node.js - 9 years
  • MongoDB - 6 years
  • React - 5 years
  • Mobile - 5 years
  • App Development - 5 years
  • React Native - 5 years
  • GraphQL - 4 years
  • TypeScript - 3 years

Availability

Part-time

Preferred Environment

MongoDB, Express.js, JavaScript, React Native

The most amazing...

...experience was developing at least 20 mobile apps while self employed using React Native, from design to deployment, helping startups reach their customers.

Work Experience

CTO · Founder

2015 - PRESENT
Kujhy
  • Provided technical expertise through the design, development, and deployment of several mobile and web apps.
  • Worked directly with startups and stakeholders understanding their businesses and needs.
  • Led startups development teams through mobile development best practices and guidelines.
  • Developed at least 20 different real-world mobile apps with React Native.
Technologies: MySQL, PostgreSQL, Sketch, User Interface (UI), HTML, Jest, MongoDB, REST, React, Node.js, React Native, Mobile, TypeScript, React Native Reanimated

Full-stack Developer

2009 - 2015
ZUQ
  • Led the company's mobile culture, by developing mobile apps using Phonegap and Ionic.
  • Organized the JavaScript structure, migrating from jQuery, Backbone.JS and Marionette, reaching AngularJS.
  • Led the development of a complete, fully functional, offline-capable mobile app using Ionic and CouchDB within 1 month.
  • Developed and compared several bus time-of-arrival forecast strategies using real time data.
Technologies: CouchDB, Node.js, Apache Kafka, Hadoop, PostgreSQL, Hibernate, Spring, JSF, GIS, Java, Ionic, AngularJS, Mobile, TypeScript

Experience

Zauty.com

A platform to connect beauty professionals and clients, it was created from scratch with NodeJS and React: A SPA to manage the data with React.js and 2 mobile apps using React Native.

Magote.com

I designed, developed, and deployed this app for Magote.com (a well-established marketplace of beauty services in Brazil). It was integrated with the REST API provided and uses OneSignal for push notifications.

QuantoGastei

I was responsible for rewriting and redesigning their app using React Native improving the performance and usability.

GoKids

https://gokidsapp.com
This platform gives families real-time information of their children when using GoKids' mother-drivers cars. It was made from scratch using JavaScript and consists of 2 mobile apps with React Native.

Education

2007 - 2012

Bachelor’s Degree in Computer Science

Federal University of Alagoas - Maceió, Alagoas, Brazil

Skills

Libraries/APIs

React, Node.js, Formik

Tools

Mongoose, Sketch, GIS

Languages

JavaScript, GraphQL, TypeScript, HTML, Java

Frameworks

React Native, Redux, Jest, AngularJS, Ionic, JSF, Spring, Hibernate, Hadoop

Paradigms

App Development, Mobile UI Design, Mobile UX Design, REST

Platforms

Mobile, Apache Kafka

Storage

MongoDB, MySQL, PostgreSQL, CouchDB

Other

React Native Reanimated, User Interface (UI)

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