Otavio Cartaxo Email & Phone Number

Araraquara, São Paulo, Brasil

Campinas, São Paulo, Brazil (Remote)

- I actively participated in the development and maintenance of microservices-based systems.- I developed and deployed a highly efficient authorization server for integration with the AlexaAPI, resulting in increased user engagement with the platform.- A crucial part of my work involved container orchestration, often utilizing Kubernetes andDocker.- I provided support for legacy systems, including maintenance and optimization.- I developed secure and scalable user authentication systems.- In addition to authentication, I also worked on developing authorization systems for accessingprotected resources.- I collaborated with an interdisciplinary team to gather user feedback and identify areas forimprovement, leading to a significant increase in service performance.

São Paulo

- I actively participated in implementing a Backend for Frontend (BFF), resulting in a 40%reduction in data transmitted with each request.- I developed advanced algorithms to enhance search functionality, leading to a significantincrease in user engagement and a decrease in bounce rates.- I continuously improved existing source code, applying refactoring practices to make it morereadable, efficient, and easier to maintain.- I ensured software quality through the implementation of automated tests, both unit andintegration tests.- I worked on developing solutions that enabled communication between cloud environments,such as AWS.- I used Kotlin (Spring Boot, Mockito, JUnit, Gradle), AWS (Lambda, SQS, API Gateway), andNodeJS with TypeScript in my daily work, following the agile Scrum methodology.

Salvador, Bahia

The research focus was on paraphrase identification using natural language processing (NLP) techniques,such as:- Data normalization (lowercasing, accent removal, stop word and punctuation removal)- Vector representation of sentence pairs (Bag of Words, TF-IDF, Word Embeddings)- Calculation of cosine similarity between vector representations- Aggregation of vector representations (addition, subtraction, etc.)- Utilization and fine-tuning of pre-trained BERT models- Neural Networks- Linear Regression- Data visualization- Utilization of Python with Scikit-Learn, Keras, TensorFlow, Transformers Lib, Gensim, Pandas,Matplotlib, and NumPy.

Salvador, Bahia

- I actively participated in the development of scripts for data collection from courts.- I was also involved in creating and training scripts for automatic text tagging.- I used Python daily (AsyncIO, AIOHTTP, xml, unittest) and MySQL for these tasks.