Luís Fernando Ferreira Pereira Lopes

Luís Fernando Ferreira Pereira Lopes Email and Phone Number

Data Scientist @ EY
Federal District, Brazil
Luís Fernando Ferreira Pereira Lopes's Location
Brasília, Federal District, Brazil, Brazil
About Luís Fernando Ferreira Pereira Lopes

With 2 years of hands-on experience in software development, web development, automation, and artificial intelligence, I've accumulated a portfolio of over 40 certificates showcasing my expertise. Recognized as a Google Certified Professional Data Analyst, I've contributed to leading companies in the Data and Information Security sector. Currently, I have a forthcoming scientific article on database-related topics scheduled for presentation at the international conference CISTI 2023.My focus extends across Statistics, Machine Learning, Deep Learning, and computing, particularly emphasizing Natural Language Processing and process automation.Rooted in a solid foundation of programming and mathematics, I actively engage in diverse data and software development projects, collaborating seamlessly with multidisciplinary teams.Proficient in various tools, here's a breakdown of my skills in each domain:- **Data Viz:** Power BI, Python, R- **Machine Learning:** Scikit Learn (Python), Tensorflow (Python), NLTK (Python)- **Data Cleaning and Analysis:** NumPy (Python), Pandas (Python)- **Web Development and APIs:** Flask (Python), Streamlit (Python)- **Application Deployment:** Docker- **Process Automation:** Docker, Bash, PythonCurrently enrolled in:- Natural Language Processing Specialization (DeepLearningAI)- Deep Learning Specialization (DeepLearningAI)Certifications:- Professional Data Analyst (Google)Pursuing:- Yellow Belt (1/3 months)Preparing for:- Tensorflow Developer by Google- Data Analyst in Power BI by Microsoft

Luís Fernando Ferreira Pereira Lopes's Current Company Details
EY
Data Scientist
Federal District, Brazil
Website:
ey.com
Employees:
371494
Luís Fernando Ferreira Pereira Lopes Work Experience Details
  • Ey
    Data Scientist
    Ey
    Federal District, Brazil
  • Koin
    Data Scientist
    Koin Feb 2024 - Present
    São Paulo, Brasil
    - Monitoring the performance of credit models;- Proposing improvements in report analyses;- Assisting in the development of new models;- Interacting with other areas of Koin to aid in statistical studies;- Studying new partner's indicators to enhance the models.
  • Universidade De Brasília
    Member Of The Llm Study Group
    Universidade De Brasília Dec 2023 - Present
  • Universidade De Brasília
    Data Scientist
    Universidade De Brasília Aug 2023 - Present
    Supervisor: Dr. Vinícius Ruela Pereira BorgesActivities: Studies in Natural Language Processing (NLP) for document similarity and document classification, employing both supervised and unsupervised approaches. Construction of crawlers for automatic data extraction and corpus building for annotation. Additionally, involvement in article writing and automation of administrative processes at the University of Brasília using machine learning and deep learning.
  • Telefónica
    Data Analyst Intern
    Telefónica Apr 2023 - Feb 2024
    I analyze network indicators to identify opportunities for improvement.I use Descriptive Statistics to gain a better understanding of network data and generate insights.I develop automations using tools such as Python, Bash, Excel, Docker, and Power BI.I build ETL pipelines in Python for the construction of Data Warehouses.I have implemented Web Tools using Flask, Django, and Streamlit for network data analysis.I have created Power BI Dashboards for data visualization and Exploratory Data Analysis.I have modeled Relational Databases to support pipeline data in dimensional format.Results:- Over 4800% reduction in data load time for one of the company's projects.- Centralization of the company's data registry, increasing efficiency in data retrieval and reducing data redundancy.- Reduction of human effort in various company activities.
  • Universidade De Brasília
    Infrastructure And Data Science Assistant Researcher
    Universidade De Brasília Apr 2022 - May 2023
    Activities: In this research project, I rotated through infrastructure/data science/development teams. Our client was the Court of Audit of the Federal District.I was the second author of a paper published at an international A4 conference. The main theme of this paper was the performance comparison between a graph-oriented database (Neo4j) and a relational database (MySQL) in contexts where the studied objects have many relationships with multiple entities.I was responsible for annotating the Text Corpus for the database used by the Natural Language Processing (NLP) models in the project.I conducted studies and summaries on Named Entity Recognition (NER) articles and Text Corpus construction related to the legal field.I created data visualizations in R and Python to compare the performance between relational and graph databases.I developed REST API endpoints with Flask to integrate the project's main platform with the databases.I managed Docker containers for application deployment.I used Jenkins and Github for Continuous Integration (CI/CD).I modeled data with Neo4j for storing data that fed the Named Entity Recognition (NER) models.I managed and configured Linux machines and servers.Results: In addition to an accepted paper at the CISTI international conference indicating the significantly superior performance of a graph database over a relational one in the mentioned context, we also contributed to the transparency of government tenders in the Federal District with visual tools and the availability of datasets from our annotations.These datasets can be used by technical professionals, for example, to implement anomaly detection models for Bid Fraud.
  • Brazilian Intelligence Agency - Abin
    Data Scienctist
    Brazilian Intelligence Agency - Abin Aug 2021 - Aug 2022
    Activities: I developed Python scripts for task automation.I was one of the responsible parties for annotating Text Corpora for NER models.I conducted studies on Artificial Neural Networks with PyTorch.I conducted experiments and evaluations of NER models for classification and segmentation of Official Documents from the Official Gazette of the Union (DOU) in Brazil.I studied the construction of relationships and nodes in a graph-oriented database (Neo4j).
  • Cnp Seguros Holding Brasil
    Cyber Security Intern
    Cnp Seguros Holding Brasil Dec 2021 - Apr 2022
    Activities: I was one of the main individuals responsible for managing access for large companies within the CNP Asurrances group in the Brazilian insurance scene, including CNP Brasil (Caixa Seguradora), Youse Seguros, Previsul, and Odonto Empresas.Managed the email inbox of the company's security department.Conducted Phishing analyses based on email headers to detect malicious emails.Automated repetitive tasks using Python.Activities: I was one of the main individuals responsible for managing access for large companies within the CNP Asurrances group in the Brazilian insurance scene, including CNP Brasil (Caixa Seguradora), Youse Seguros, Previsul, and Odonto Empresas.Managed the email inbox of the company's security department.Conducted Phishing analyses based on email headers to detect malicious emails.Automated repetitive tasks using Python.
  • Universidade De Brasília
    Special Tutor (Pte)
    Universidade De Brasília Aug 2021 - Dec 2021
    Special tutor at the PTE in the Network Fundamentals subject, preparing summaries, answering questions and giving weekly classes to the tutee student on the content related to the CompTIA Network+ certification and the subject

Luís Fernando Ferreira Pereira Lopes Education Details

Frequently Asked Questions about Luís Fernando Ferreira Pereira Lopes

What company does Luís Fernando Ferreira Pereira Lopes work for?

Luís Fernando Ferreira Pereira Lopes works for Ey

What is Luís Fernando Ferreira Pereira Lopes's role at the current company?

Luís Fernando Ferreira Pereira Lopes's current role is Data Scientist.

What schools did Luís Fernando Ferreira Pereira Lopes attend?

Luís Fernando Ferreira Pereira Lopes attended University Of Brasília, Universidade De Brasília, Uninter Centro Universitário Internacional.

Who are Luís Fernando Ferreira Pereira Lopes's colleagues?

Luís Fernando Ferreira Pereira Lopes's colleagues are Kenia Michelle Garcia, Jocelyn Caspe, Cassie Barkman, Cpa, Vera Kong, Ganesh Bhat, Mario Roberto Urbina Núñez, Nirav Chhaparwal.

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