Summary
Overview
Work History
Education
Skills
Certification
Languages
Timeline
SeniorSoftwareEngineer
Leonardo Oliveira

Leonardo Oliveira

Franca

Summary

Experienced full-stack software engineer specializing in scalable web applications with expertise in JavaScript/TypeScript. Proficient in React.js/Next.js for responsive frontends and NestJS for robust backend services. Focused on cloud-native solutions and microservices architecture to enhance application performance.

Overview

7
7
years of professional experience
1
1
Certificate

Work History

Senior Software Engineer

TIVIT
São Paulo
08.2021 - Current
  • Built and maintained microservices using Nest, following best practices such as unit, integration, and end-to-end tests, CQRS, and DDD. This led to a reduction in the response time of registration APIs from 4 seconds to 200 milliseconds, impacting over 10 million active customers of Stix, which is one of the largest loyalty program platforms in Brazil.
  • Developed the CNHi Bank client area, enabling nearly 3,000 clients to conveniently access comprehensive data about their banking relationships. The solution, built with Angular and C#/.NET, focused on best practices, including unit and integration tests, as well as CI/CD pipelines for seamless deployment.
  • Led the implementation of the Somos HEINEKEN App, a corporate hybrid solution for iOS and Android, that streamlines access to critical data for approximately 15,000 Heineken employees. The app was developed using React Native.

Tech Lead

CoreBiz
São Paulo
07.2021 - 08.2021
  • Led a diverse team of 36 developers in a regional hub across Chile and Argentina.
  • Collaborated closely with POs, managers, and stakeholders.
  • Established optimal development practices, including efficient branching strategies, and managing multiple staging and production environments, utilizing CI/CD pipelines for seamless deployment.

Front-End Developer

CoreBiz
São Paulo
04.2020 - 07.2021
  • Integrated LGPD consent functionality into Whirlpool's global e-commerce websites (Consul, Brastemp, KitchenAid), collaborating closely with international Agile teams and the OneTrust platform team to ensure compliance and seamless implementation.
  • Built high-performing e-commerce websites using the VTEX IO platform, working with Tachyons, TypeScript, React, and GraphQL, always striving for efficient and scalable solutions.

Front-End Developer

Click Qi
Franca
03.2019 - 04.2020
  • Developed several e-commerce websites using the VTEX platform, working with HTML, CSS, JavaScript, jQuery, and React.

Web Application Developer

SMN Tecnologia da Informação
Franca
10.2017 - 12.2018

Education

English Language -

Times Idiomas
São Paulo
02.2025

English Language -

E.E. Torquato Caleiro
Franca
01.2017

High School -

E.E. Mário D'Elia
Franca
12.2016

Skills

  • Javascript
  • Typescript
  • Reactjs
  • Nextjs
  • Nodejs
  • NestJS
  • Docker
  • CI/CD

Certification

  • EFSET English Certificate 68/100 (C1 Advanced)
  • Programming in HTML5 with JavaScript and CSS3, 918/1000
  • VTEX Certified Professional Advanced Implementation Expert (Enterprise)

Languages

Portuguese
First Language
English
Advanced (C1)
C1

Timeline

Senior Software Engineer

TIVIT
08.2021 - Current

Tech Lead

CoreBiz
07.2021 - 08.2021

Front-End Developer

CoreBiz
04.2020 - 07.2021

Front-End Developer

Click Qi
03.2019 - 04.2020

Web Application Developer

SMN Tecnologia da Informação
10.2017 - 12.2018

English Language -

Times Idiomas

English Language -

E.E. Torquato Caleiro

High School -

E.E. Mário D'Elia
Leonardo Oliveira