Raiffy is available for hire

Raiffy Lopes D Avila

Verified Expert in Engineering

JavaScript Libraries Developer

Vitoria - State of Espírito Santo, Brazil

Toptal member since October 26, 2022

Expertise

UI Development JavaScript SQL Java Database Excel Development JSON Web Development Full-stack Data Science CSS REST API C

Bio

Raiffy is a computer engineer who graduated from Brazil's prestigious Aeronautics Institute of Technology. He is an experienced web applications developer with more than ten years in the oil industry. Raiffy is a passionate problem solver driven by challenges, believing in solid fundamentals to stay relevant and competitive in a fast-changing environment.

Portfolio

Petrobras

Java, JavaScript Libraries, User Interface (UI), JavaScript, Node.js, SQL, HTML...

Experience

JavaScript Libraries - 10 years
Databases - 10 years
User Interface (UI) - 10 years
Eclipse - 10 years
Java - 10 years
C - 5 years
Arduino - 3 years

Availability

Part-time

Preferred Environment

Windows, Visual Studio Code (VS Code), Eclipse, JavaScript, SQL, HTML

The most amazing...

...thing I've developed from scratch is a performant and user-friendly integrity management system for oil wells within a large oil company.

Work Experience

Petroleum Engineer

2009 - PRESENT

Petrobras

Developed a Java-backed web app to rank oil rigs based on safety KPIs to improve drilling contractors' overall performance.
Created a Java-backed web app to build blowout preventer (BOP) schematics.
Programmed a Java-backed web app to manage oil wells' integrity in the production phase, featuring a rich, fast, and easy-to-use UI, very well accepted by users.
Built a daily report Java-powered tool for drilling rigs.
Developed an algorithm to build a cavity model from oil well equipment information.
Created a high-performance, well-rendering JavaScript library.

Technologies: Java, JavaScript Libraries, User Interface (UI), JavaScript, Node.js, SQL, HTML, Android, Excel VBA, Vue, Hibernate, C++, CSS, Nunjucks, DLL, Full-stack, Spring Boot, Jetty, Apache Tomcat, Three.js, SlickGrid, Java Servlets, Python, REST, APIs

Experience

Industrial Wash Machine Smartizer

This Arduino-based project aimed to transform old and manual-operated industrial wash machines into fully automated devices that control water input and output, soap, and fabric softener inlet. Also, it provided a serial interface allowing users to create up to five custom wash programs.

Wellsom

A web-based application to manage oil and gas wells' integrity in the production phase. It features:
• High-performance SVG/Canvas map to locate wells and other points of interest (POI)
• Fast well, rendering engine
• Equipment test scheduling module
• Highly configurable user permission system

Education

2004 - 2008

Bachelor's Degree in Computer Engineering

Aeronautics Institute of Technology - São José dos Campos, SP, Brazil

Skills

Libraries/APIs

SlickGrid, Java Servlets, Chart.js, REST APIs, Node.js, Vue, Three.js, YUI

Tools

Microsoft Excel, Jetty, Apache Tomcat, jVectorMap

Languages

Java, JavaScript, SQL, HTML, Excel VBA, C, CSS, Assembly, Delphi 7, C++, Python

Storage

Databases, JSON, SQLite

Paradigms

REST

Platforms

Arduino, Windows, Eclipse, Android, Oracle, Docker, Visual Studio Code (VS Code)

Frameworks

Hibernate, Spring Boot, Spring

Other

JavaScript Libraries, User Interface (UI), Calculus, Full-stack, DLL, APIs, API Integration, Physics, Electronics, Operating Systems, ESP32, Nunjucks, SVG, Async/Await

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