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Summary

Expertise

Project Highlights

Education

Agency

DR

English:

Advanced

Darlan R.

vetted by Youteam

Vetted by YouTeam

Brazil

UTC -03:00

America/Sao_Paulo

English:

Advanced

backend developer

Want to hire this engineer?

Check if Darlan is available

Expertise

Years of commercial development experience

3 years of experience

Core technologies

Node.js 2 years
React.js 1 year
Docker 2 years
Google Cloud Platform 2 years
API 3 years
Python 2 years

Other technologies

MySQL
PHP
Git

Project Highlights

icon
Systems Developer

Historical data processing project anemometric measurements

Jun `21 - Jul `21

Due to the need to process a high amount of data, around 30 Gb of data per request, a cloud web solution was designed and developed that had the possibility of scalability and with the lowest cost for the company. I came up with a solution, which used 1 hour cache of data for reprocessing, scaling Cloud Run instances to execute heavier data while Cloud Function instances processed, cleaned and reorganized the data in buckets. Exporting at the end a signed url link for download using Google's own server at no additional cost.

Responsibilities & achievements

Application development and feedback for the cloud infrastructure team

Cloud Engineer
Flask
JavaScript
MySQL
Computer Engineering
Docker
AppCode
icon
Systems Developer

Creation of mobile data visualization using AppScript

Apr `21 - Present

4 years

Due to the demand of field engineers to query data by cell phone in regions of Brazil that do not have internet or cell signal, a mobile solution with offline access had to be architected. I chose to use the lowcode AppScript platform that had been purchased by Google. The first solution used data stored in a Big Query table, but due to the high cost for a maximum of 30 users, the solution was refactored to use a Google Sheets spreadsheet that was updated every 4 hours by a script in Node scheduled in AirFlow with authentication of access to the MySQL database. The solution was created in 4 days and reduced transport costs for engineers who often had to travel to the nearest city to access the online web system and see all the local activity updates.

Responsibilities & achievements

Application development and solution architecture

Python
Docker
AppCode
icon
Systems Developer

On-premises legacy system refactoring to cloud

Jan `20 - Jul `21

1 year

The project was a refactoring of a legacy on-premise web system that contained metadata from anemometric measurement towers, for Google cloud services. In order to break the monolithic code into microservices, the PHP code was gradually refactored into NodeJs with ExpressJS and Python/Flask when there was a need for large data handling, dividing the responsibility between each cloud service that made sense for each functionality. In this project, which was my first contact with the cloud and lasted around 1 year and a half, I used many services like Cloud Storage, CDN, Google functions, Cloud Run, Container registry, Cloud SQL, etc. The project was available 24/7 to all engineering teams that used work order data, serialization, geolocation for strategic and operational decision making.

Responsibilities & achievements

Responsibilities Application development and feedback for the cloud infrastructure team

MySQL
Node.js
Python
React.js
Computer Engineering
Docker
Cloudformation

Education

Higher education in Computer Science

Agency

agency #2288

100-400

GMT-3

Belo Horizonte/Brazil

Core Expertise

Agile
AngularJS
ASP.NET
AWS
Business Intelligence
C#
C++
Java
Java EE
JavaScript
MySQL
.NET
Node.js
PHP
Python
QlikView
React.js
React Native
Ruby
Selenium
SQL
Tableau
VB.NET
Laravel Framework
Object Oriented PHP
Test Automation
Angular 2x
RabbitMQ
Android Testing API
iOS SDK
MVC
Web Forms
Windows Services
Project Manager
Scrum Master
Vue.js
Business Analysis
Angular UI Bootstrap
Dapper
Flutter
.NET Core
Power BI
Qlik Sense

Industries

Banking & Finance, Accounting & Auditing, Big Data

Want to hire this engineer?

Check if Darlan is available