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Antonio De Oliveira Junior

Lead Software Engineer | JavaScript & Node.js Specialist | AWS | GCP | React & React Native | Driving Innovation & Team Leadership

[email protected] | +55 48984047603 | LinkedIn | Articles

Currently

Lead Software Engineer at Digital Turbine

About

A highly accomplished and results-driven Lead Software Engineer with over 15 years of comprehensive experience in full-stack development, specializing in JavaScript ecosystems. My expertise lies in architecting and developing robust, scalable applications using cutting-edge technologies such as Node.js, React, and React Native. I possess deep knowledge of cloud infrastructure on AWS and GCP, with hands-on experience in Kubernetes, ArgoCD, and Helm for efficient deployment and management. I am also proficient with various databases, including MySQL, PostgreSQL, SQL Server, and MongoDB.

Beyond technical prowess, I bring several years of proven leadership experience, comfortable in management roles and driving successful project outcomes. I excel at fostering collaborative team environments, mentoring junior developers, and contributing to strategic product decisions, ensuring technical excellence and timely delivery.

Throughout my career, I've contributed to high-impact projects, including developing security applications with over 200,000 users and achieving 90% market share in Brazil, and optimizing systems processing millions of events daily. I am passionate about open-source contributions and leveraging technology to solve complex business challenges, always seeking opportunities to lead impactful projects and contribute to forward-thinking teams. Let's connect!

Portfolio

https://github.com/arojunior/

Articles

https://medium.com/@arojunior

Job history

Jan-2021 - Present - Digital Turbine

Role: Full stack developer -> Lead Software Engineer

Project: ​Advertisement

  • Environment: GCP, AWS, Kubernetes, Helm, NodeJs, TypeScript, React;

Nov-2019 - Dec-2020 - EPAM Systems (Poland)

Role: Full stack developer

Project: ​Education

  • Environment: AWS, NodeJs, Typescript, React, React-native, Redux, GraphQL;

Jun-2018 - Oct-2019 - Segware (Brazil)

Role: Full stack developer / Tech leader

Project: My Security - Application for alarm monitoring, cameras, home automation, tracking, panic button and services related to business, personal and home security.More than 200.000 users, thousands of notifications per day.Integration with 3 different alarm monitoring platforms.90% of the market share in Brazil.

Tasks performed:

  • Responsible for all definitions regarding technologies
  • Main developer
  • Conducted interviews for open positions
  • Trained newcommers
  • Supervised the team
  • Co-operated for product decisions
  • Responsible for the management of the development process (SCRUM)
  • Developed integration for hardwares such cameras and bluetooh devices with native code in iOS and Android platforms

Environment:

  • SQL Server, MySQL and Mongodb
  • Xcode, Android studio
  • React-native, Redux, NodeJs, GraphQL, Swift, Objective-c and Java (android)

Oct-2017 - Jun-2018 - Full stack developer, Segware (Brazil)

Role: Senior full stack developer

Project: SIGMA Cloud - Management and monitoring of alarm systems, cameras and tracking. Focused on home, business and personal security.Processing millions of events per day.90% of the market share in Brazil.

Tasks performed:

  • Backend developer working with Java and Spring boot, as well another backend in NodeJs.
  • Frontend developer working with ReactJs and Websockets, as well an App in React-native and GraphQL

Environment:

  • MySQL and Mongodb
  • AWS Beanstalk, Route 53, CloudFare, SES, Redis, HornetMQ, Kafka, Spring boot
  • Java 8, NodeJs, React, Redux, RxJs, Websockets, React-native, GraphQL

Jun-2019 - Aug-2019 - Codenation (Brazil)

Role: ReactJs Mentor

Project: "AceleraDev" (speed up dev).It is an acceleration program for devs, supported by technology companies and facilitated by Codenation, focused on training potential Brazilian talents to work in the area of software development in the most varied stacks.

Tasks performed:

  • Acted as ReactJs mentor in the presential classes
  • Applied challenges to the students
  • Helped with the solutions of the challenges in person and on the company's platform

Environment:

  • ReactJs, Redux, React-router, Styled-components...

Mar-2012 - Sep-2017 - IT Manager, Phipasa Fiat (Brazil)

Role: IT Manager / Developer

Project: - Network and servers refactoring/maintenance- Intranet - Internal tools for process optimization

Tasks performed:

  • IT manager of the whole company's group, responsible for network and servers
  • Developer of the Intranet - Internal tools for process optimization

Environment:

  • SQL Server and MySQL
  • IP tables firewall, Squid proxy, Active directory, SQL Server, WSUS, Hyper-v, Terminal services
  • PHP, Javascript, MySQL, Shell script, VB Script

Mar-2007 - Mar-2012 - DVA Veiculos Ltda (Brazil)

Role: IT Analyst / Developer

Project: Intranet - Tools for internal process optimization, such as salary calculations for HR department, benefits portal, communication between all of the branches of the company's group, stock management for services department, taxes calculations for the accounting department and more. The whole project had more than 20 modules with a variety of tools for each department of the company's group.

Tasks performed:

  • Analysis of the processes/problems to be solved
  • Development of the solution plan
  • Development of the actual tool to solve the problem/optimize the process
  • Main developer of the project
  • Responsible for the maintanence of the webserver

Environment:

  • SQL Server and MySQL
  • PHP, Javascript and CSS

Education

UNIVERSITY OF THE VALLEY OF ITAJAI

Faculty/College: Quality and software engineering

Degree (diploma): Specialist


UNIVERSITY OF THE VALLEY OF ITAJAI

Faculty/College: System analysis and development

Degree (diploma): Graduate Diploma

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