Summary
Overview
Work History
Education
Skills
Accomplishments
LANGUAGES
Timeline
Generic
Ivan Prado

Ivan Prado

Sao Paulo

Summary

Senior Backend Engineer with 30 years of experience delivering robust, scalable systems across the Microsoft stack. Proven record of modernizing legacy architectures and driving performance improvements of up to 80%. Expert in .NET 8, C#, WebAPIs, Azure DevOps, and Dynatrace monitoring. Always aiming to solve business problems through technical excellence, I am open to remote international roles focusing on backend architecture modernization, performance tuning, and cloud-native solutions.

Overview

29
29
years of professional experience

Work History

Senior Backend Engineer

ACT Digital
04.2022 - 10.2024
  • Migrated legacy systems (.NET 4.6) to .NET 8 WebAPIs and Workers, leveraging Hexagonal Architecture, Unit Testing (xUnit, Moq), and observability tools (Dynatrace, Kibana).
  • Improved Oracle-based batch process performance by 87%, reducing execution time from 15 to 2 minutes.
  • Refactored a payroll system backend, eliminating dependency on legacy APIs and reducing critical failures by over 80%.

Senior Backend Engineer

DClick
11.2021 - 03.2022
  • Developed and maintained a Controller-Service-Repository pattern WebAPI, using .NET Core 3.1, EF Core 5.0, and Microsoft SQL Server. This API worked as the backend for both a Mobile (React Native) and Web (ReactJS) interface, supporting the Salesforce Team from a Soft Drink Company based in Rio de Janeiro, Brazil.
  • I fine-tuned EF performance by applying query optimization, improving backend throughput by 20%.

Senior Full-Stack Engineer

Innolevels
03.2021 - 10.2021
  • Worked on the migration of a Recruitment and Selection product for Teleperformance, one of the largest Call Center companies worldwide, French-based with a subsidiary in Brazil. Their website was initially based on legacy ASP.NET Webforms and SOAP Webservices, using Microsoft DAO to access data on SQL Servers.
  • Refactored their solution, using ASP.NET Core MVC with Razor for the frontend, Restful .NET Core 3.1 APIs for the backend, and Dapper as the ORM technology.

Full Stack Software Engineer

IVAN BONORA PRADO MEI
08.2015 - 10.2020
  • Worked part-time for Target One, a Brazilian Microsoft/Oracle Partner company. Developed a customized ERP solution, using ASP.NET Winforms with AJAX and jQuery, and heavily based on SQL Server objects (Stored Procedures, Functions, and Triggers).
  • Developed an Android app for mapping and registering recyclable waste drop-off locations, using Xamarin, .NET Core WebAPI, and .NET Standard.

Senior Software Engineer

Contem1g make-up
03.2014 - 07.2015

Technical Lead

Balcao de Empregos
02.2013 - 08.2013
  • Worked both as a tech leader and a coordinator of the developer team.
  • Managed IT projects.

Senior Software Engineer

Balcao de Empregos
05.2012 - 02.2013
  • Refactored the company's website, which initially ran on ASP.NET MVC 1.0 and Entity Framework 3.5. These two technologies, still in their early stages, were too unstable and slow.
  • I solved the problem by taking one step forward and one step back:
  • 1) Updated ASP.NET MVC to version 2.0.
  • 2) Modified the data layer by removing the ORM and using MS DAO instead, as at the time, EF 4.0 - which fixed the performance issues - had not yet been released.
  • Was responsible for developing, maintaining, and deploying new versions of the website to the production environment.

Software Engineer

Infobridge Consultoria de Informatica Ltda.
07.2009 - 09.2011

Senior Software Engineer

BuscaPe Informacao e Tecnologia Ltda.
05.2006 - 08.2009

Consulting Software Engineer

BoxNET Servicos e Informacoes Ltda.
05.2005 - 02.2006

Consulting Software Engineer

Verano Engenharia de Sistemas Ltda.
07.2003 - 04.2005

Consulting Software Engineer

Banco Safra S.A.
01.2003 - 07.2003

Software Engineer

Banco Itau S.A.
03.1996 - 09.2002

Education

Associate Degree - Systems Analysis and Development

UNIFRAN
01.2018

MBA - IT Management

FIAP
01.2007

Bachelor's degree - Mechanical Engineering

UNICAMP
01.1995

Skills

  • Languages & Frameworks: C#, ASPNET Core, ASPNET MVC, ASPNET WebAPI, NET Standard, WinForms, Xamarin
  • Databases: SQL Server, Oracle, MySQL, SQLite, MongoDB
  • ORMs & Data Access: Entity Framework Core, Dapper ORM, DAO, ADONET
  • Cloud & DevOps: Azure DevOps, AWS, Docker, Kubernetes, Git
  • Messaging & Monitoring: RabbitMQ, Dynatrace, Kibana
  • Practices: Agile (Scrum, Kanban), CI/CD, Unit Testing (xUnit, Moq)

Accomplishments

  • Throughout my career, I've reached some achievements I'd like to share:
  • At Banco Itau - one of Brazil’s largest financial institutions, I quickly became a UI/UX reference among co-workers and users, crafting intuitive Windows applications with Visual Basic 5.0 that simplified daily workflows.
  • Developed a mobile app promoting sustainability, enabling users to locate and register recycling drop-off points - all built in Xamarin, a technology I mastered from scratch and deployed in under six months.
  • At Balcao de Empregos - a local HR technology company, I re-architected the data layer for the main website, transitioning from the initial Entity Framework to MS DAO, resulting in an 80% performance improvement.
  • At Banco BMG - another large Brazilian financial institution, I redesigned all Azure DevOps deployment pipelines to securely replace sensitive repository data using Replace Tokens.

LANGUAGES

Portuguese (Native)
English (Advanced)
Spanish (Basic)

Timeline

Senior Backend Engineer

ACT Digital
04.2022 - 10.2024

Senior Backend Engineer

DClick
11.2021 - 03.2022

Senior Full-Stack Engineer

Innolevels
03.2021 - 10.2021

Full Stack Software Engineer

IVAN BONORA PRADO MEI
08.2015 - 10.2020

Senior Software Engineer

Contem1g make-up
03.2014 - 07.2015

Technical Lead

Balcao de Empregos
02.2013 - 08.2013

Senior Software Engineer

Balcao de Empregos
05.2012 - 02.2013

Software Engineer

Infobridge Consultoria de Informatica Ltda.
07.2009 - 09.2011

Senior Software Engineer

BuscaPe Informacao e Tecnologia Ltda.
05.2006 - 08.2009

Consulting Software Engineer

BoxNET Servicos e Informacoes Ltda.
05.2005 - 02.2006

Consulting Software Engineer

Verano Engenharia de Sistemas Ltda.
07.2003 - 04.2005

Consulting Software Engineer

Banco Safra S.A.
01.2003 - 07.2003

Software Engineer

Banco Itau S.A.
03.1996 - 09.2002

MBA - IT Management

FIAP

Bachelor's degree - Mechanical Engineering

UNICAMP

Associate Degree - Systems Analysis and Development

UNIFRAN
Ivan Prado