--> Personal Portfolio

João Paulo

I'm

Hello, my name is João Paulo, I'm Junior Developer in a learning process focused on systems development.

Software Engineer

Managed large‑scale deployment of JupyterHub with Nbgrader and webwork software, facilitating approx 5500 students.
Configured, troubleshot, and administered server‑side web applications for the statistics department.
Handled Linux server administration and Apache configuration; automated tasks like user account creation, managing student database, and system maintenance using Shell and automation scripts, reducing manual work by 200%.

Backend Developer

Documented and coded server‑less web application for the hotel industry and designed REST API using Flask‑based JWT authentication.
Redeveloped an existing system to support customer account management, scheduling, and time tracking; enabled dynamic API calls with the help of Amazon API Gateway, AWS Lambda, and DynamoDB.

Software Developer

Tested, designed, and developed backend APIs of WebRTC enabled multi‑party video conferencing web application and delivered the project 15 days ahead of schedule by efficiently designing the flow of the project.

Programmer Analyst

Optimized image processing algorithm of pill detection by creating customized MASKRCNN algorithm, increasing accuracy by 15%; trained classification algorithm with the help of triplet loss to learn the image embedding of pill, reducing the hassle of collecting data of new pills.
Devised a pipeline of the project to incorporate it into the product of the company. Implemented Restful APIs in Django that enabled our quality Analyst team to increase reporting speed by 46%.
Built a web app to onboard data from the company’s product using Flask, Postgres, and AWS S3, enabling interactive charts in real-time.
Mentored 2 interns to optimize the pill detection algorithm and to include the multiprocessing pipeline, increasing overall speed by 75%.

Research Intern

Implemented noise reduction algorithm on the satellite image and prepared architecture for detecting objects in high‑resolution satellite images, achieving 80% accuracy.
Increased accessibility of satellite image data by redesigning database and application for showcasing graphical data.