Henrique Jefferson

Backend Engineer

Followers

Following

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

$30/hr

Open to

Skills

PythonGolangCloud ComputingPHP.NETGithubAgile methodologiesNoSQLJavascript

Education

Federal University of São João del Rei

Computer science

Bachelor's DegreeClass of 2021

Experience

Backend developer

Stone Pagamentos

full time2/2023 - 2/2023

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

⚫ 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

⚫ 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.