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Henrique Jefferson

Backend Engineer

3-5 yearsCongonhas, State of Minas Gerais, Brazil
About Henrique Jefferson
Backend software developer with 4+ years of experience working with multi-disciplinary environments using back-end languages (Python, Golang, PHP, .Net) and experience with SQL and NoSQL databases.
Backend Engineer
Experience level
Mid-level3-5 yrs
Hourly rate
Open to
PythonGolangCloud ComputingPHP.NETGithubAgile methodologiesNoSQLJavascript

Federal University of São João del Rei

Computer science

Bachelor's DegreeClass of 2021

Backend developer

Stone Pagamentos

full time2/2023 - 2/2023
  1. Stone.co is one of the bigger fintechs in Brazil, with more than 2.1 million clients across the country including big companies like B2W, Mercado livre, Ali Express and moving a volume of 20 million transactions per day. ⚫ Developed a security verification flow for the new platform version using Golang, impacting 24 thousand client accounts. ⚫ Designed and managed an API for capturing and storing 20 million financial transactions daily, using MongoDB, Python and FastAPI. ⚫ Constructed a new report to inform sales details for 2 million users, using Python, Panda library and HTML. ⚫ Acted in a gateway API system, connecting the company internal APIs to the client’s platforms, like Mercado Livre, AliExpress and B2W. ⚫ Updated a sales installments simulator, developing and implementing business rules and fees, used by over 2 million clients.

Full stack developer

Conveniar Ltda

full time2/2023 - 2/2023
  1. ⚫ Developed an API with Node.js and Vue.js to analyze and detect fraudulent financial activities, working with an amount close to 1.2 million USD. ⚫ Implemented .Net-based backend and front-end solutions for a software system, responsible to manage the Universities' research resources. ⚫ Utilized SQL triggers, assertions, and tables to store and manage financial data close to 18 thousand academic projects.

Full stack developer

Elo advisory and systems

full time2/2023 - 2/2023
  1. ⚫ Developed system module for managing requests to Brazilian Unified Health System (SUS) from municipal authority,covering medical attendances, exams and surgeries. ⚫ Managed SQL databases of system responsible for storing information of over 500,000 patients. ⚫ Used Python and Selenium libraries to scrap data and rules from federal health ministry and update system business rules. ⚫ Taked part of the Agile Methodologies Study Division, introducing and optimizing Scrum and Kanban company’s process.
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