Wesley D.
Back-end and Systems Engineer

Skills

Flask

Pl/sql

Github

Oracle Database

Java

Javascript

Python

C++

Postgresql

Mysql

Angular

Wesley is available for hire

Hire Wesley D.

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Bio

Computer Science graduate from UFRJ with over a decade of experience in programming across various personal, academic, and professional projects. Specializes in the development of desktop applications utilizing Java and Oracle 11g databases, as well as game development for both PCs and mobile platforms using Unity. Proficient in data visualization as a frontend developer, leveraging JavaScript and D3.js. Holds one and a half years of experience as a backend developer, focusing on REST APIs with Python and Flask, and has contributed to full-stack projects by integrating Flask for backend operations with AngularJS and D3.js for frontend development.

Software Engineer
5/1/2022 - 1/1/2023

Developed proficiency in React.js and Sass for the development of a web application that integrates with AWS Cognito. Enhanced mobile app development expertise using Flutter. Leveraged Java and Spring for backend development hosted on AWS. Implemented monitoring solutions with Datadog and utilized CircleCI for Continuous Integration and Delivery. Integrated Twilio to facilitate SMS and video conversations. Crafted custom data collectors using C#.NET to aggregate customer data.

Key accomplishments include the implementation of a robust password creation and reset mechanism to enforce security and prevent reuse of passwords. Optimized query performance to enhance system efficiency. Automated the generation of customized QR codes to initiate SMS conversations seamlessly. Developed the first version of a custom email digest system, allowing for tailored data and frequency settings.
Systems Analyst
2/1/2019 - 1/1/2022

Developed proficiency in Java 8, Oracle 11g, Angular.js, Angular, and AWS while supporting and developing new features for a web platform. Contributed to the migration of the project from a monolithic architecture to a distributed one. Gained experience in C#.NET, Cassandra, Oracle 11g, and ElasticSearch through project support and facilitated the transition to a distributed architecture using Kubernetes on Azure. Engaged in the development of other projects using Java 8+.
Systems Analyst
3/2/2017 - 8/2/2018

Managed the database infrastructure and servers for the Directorate for Public Policy Analysis, ensuring smooth and reliable operations. Developed expertise in creating visualization tools using HTML5 and D3, enhancing the presentation and analysis of data. Built robust back-end applications, primarily REST APIs, for various functionalities such as dashboards, project management systems, and open data visualizations. Leveraged Python and Flask for application development, PostgreSQL for robust database management, and NGINX for efficient web server deployment.
Software Developer
1/2/2016 - 1/2/2017

Developed expertise in creating data visualizations using D3.js. Designed and implemented visual representations of import/export data for the Inter-American Development Bank (IDB). Demonstrated proficiency in transforming complex datasets into intuitive and interactive visual formats, enhancing data comprehension and accessibility for stakeholders.
Intern
3/2/2011 - 1/2/2016

Provided recurring consultations and program execution for the statistics team, ensuring the Oracle database remained functional and up-to-date. Contributed to the development of a Java-based tool employing Business Intelligence concepts for enhanced data visualization and filtering. Played a key role in designing a new, more automated and efficient database model.