Marcus Vinicius Monteiro de Souza

Hi, my name is Marcus Vinicius, I'm a software developer

Brasilia, Brazil



My name is Marcus Vinicius, I’m a software developer at Banco do Brasil, Brazil’s largest bank. I have more than 3 years of experience in the area, and I have designed and developed systems and systems’ components used by thousands of people daily. Computer Science and Programming are real passions for me, and I study them daily, even on weekends. I can do both frontend and backend development.


English, French, Portuguese, Spanish

Favorite Python Packages:

requests, numpy, scipy, networkx, nltk, pandas, pip, httpie, youtube-dl, sqlalchemy, beautifulsoup, lxml, scrapy


  • Designed and implemented most of the Duplo Sim project for Banco do Brasil's Crédito Protegido Estoque insurance product. The Crédito Protegido Estoque (company stock insurance) is a product with very high sales volume and a good margin, and the Duplo Sim is a system that allows clients to buy the insurance remotely and confirm the purchase at a latter time, according to the requirements of SUSEP, Brazil's Insurance industry governing body. The project led to an even higher sales volume, leveraging mobile and internet channels.
  • Designed and implemented most the Nova Cobrança project: the Central Bank started requiring that every banking bill would need to be registered at their database, by a certain date, or else the banks would have to pay high fines. The Nova Cobrança (New Charging) implemented this demand.
  • Designed and implemented most the Insurance Product Versioning system, that allows product managers to update product characteristics on the fly, cascading the changes throughout the system.
  • Implemented large, critical parts of the backends of the Credito Protegido Estoque , Vida Empresa Flex (life insurance for company employees), and Personalizado (individualized) insurance products.
  • Performed many system maintenance and problem solving tasks.
  • Wrote and extended tools to automate repetitive tasks for myself and fellow developers.


Amazon Web Services (AWS), Backend Development, Data Science, Flask, Frontend Development, Google Cloud Platform, Heroku, JavaScript, NumPy, Pandas, PostgreSQL, ReactJS, SQLAlchemy, SciPy, Scrapy, Web Development, Web Scraping

Joined: July 2017