Klayton Chrysthian Oliveira Dias

Worked as a Full Stack Developer with a Back-end focus on a corporate management platform (web and mobile), building and evolving Node.js APIs with PostgreSQL to support multi-company workflows. Delivered business-rule fixes and refinements (company-scoped relationships, permissions, and cart/selection behavior), stabilized features through staging (STG) testing, and shipped iterative improvements

At NextMed Tecnologia, I was responsible for developing endpoints and a
BackOffice module, using C# and .NET Core with Entity Framework to manage the
communication with the database. I also participated in the planning and execution of
sprints via Azure DevOps, ensuring efficient integration between the systems. The application
good security, performance and architecture practices resulted in a mo

Automated the analysis of 43 Excel spreadsheets, reducing errors and increasing efficiency
of the process. To solve this, I automated the collection, transformation and loading (ETL) of the data
using Python, as well as creating an interactive dashboard in Power BI with DAX to provide
real-time insights. The automation of ETL significantly reduced the time it took to prepare
while the dashboard en

The company needed to constantly update its internal databases to
support fiber optic projects. To optimize the process, I developed Python scripts with
Selenium to automate data manipulation and pandas for processing. I also
I also created an interface with PySimpleGUI to generate an APK that made it easier to control the
updates. Automation with these tools accelerated the process, reduced error

Experienced back-end developer proficient in Python, JavaScript, and NodeJS. Solid skills in Power BI, M, DAX, and SQL for efficient data analysis. Committed to delivering scalable and effective solutions.

IFMS CENID FIC English course, Basic Level II, focused on vocabulary, essential grammar, and conversation.