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César A.

Senior Backend Developer

Cesar is a Senior Backend Developer with 24 years of commercial experience, specializing in both frontend and backend development, as well as mobile and Windows environment development.

He has extensive skills in C#, .NET, Node.js, Swift, SwiftUI, Objective-C, WinUI, WPF, and WinForms.

In his most recent role, Cesar worked at Quimbik as a Senior Software Engineer for nearly twelve years, contributing to over 20 projects involving full-stack and mobile applications. At Quimbik, he developed projects for global companies such as Nasdaq (Project: Nasdaq Boardvantage), Amazon, and Oracle.

Cesar also worked at 6Sigma, a Brazilian company, as a Full Stack Software Engineer, where he designed and developed the SP6S System. In addition to his technical expertise, he has led teams and mentored junior developers.

Main expertise
  • .NET
    .NET 19 years
    ASP.NET 8 years
  • C#
    C# 19 years
Other skills
  • Scrum
    Scrum 4 years
César A.


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Selected experience


  • Senior Software Engineer

    Quimbik - 11 years 6 months

    Worked at Quimbik as a Software Engineer for eleven and a half years, developing more than 20 projects using different technologies. The company's clients included American startups and major market players such as Nasdaq, Amazon, Oracle, Aramark, and Symantec.

    Some relevant projects:

    • Nasdaq Boardvantage - A system to help directors, committees, and leadership teams be better prepared, engaged, and aligned in their collaboration and decision-making processes. Leading technologies used: Swift, SwiftUI, Objective-C, UIKit, Java Spring Boot, Docker, Postgres, and React. • Fitli - iOS application for fitness marketplace. My activities included: iOS development • Artkive - iOS application to chronologically store, share and print your child's artwork or schoolwork. My activities included: iOS development • Filmakr - iOS application for making cinematic iPhone films. My activities included: iOS development • Photomenus - iOS application for food and catering delivery service. My activities included: iOS development using Swift and UIKit, backend development • Amazon Employees Shares Website - An internal system allowing employees to buy and sell shares. My activities included: Full stack development • SeatBoost - iOS application for bid live auctions for a seat upgrade. My activities included: Backend development • Aramark Shop Site - E-commerce for Aramark Corporation. My activities included: Backend development • DriversEd Online Courses - Online driver's ed courses for exam preparation. Fullstack Development


    • Technologies:
    • Swift Swift
    • Objective-C Objective-C
    • UIKit UIKit
    • Java Java
    • Node.js Node.js
    • Spring Spring
    • React.js React.js
    • Docker Docker
    • AWS AWS
    • Oracle Oracle
    • PostgreSQL PostgreSQL
    • Express.js Express.js
    • JavaScript JavaScript
  • Senior Software Engineer

    6Sigma - 13 years 1 month

    • Worked as a Fullstack Software Engineer, designing and developing the SP6S System from scratch.
    • The SP6S is a system for storing, organizing, and publishing statistical research.
    • The latest SP6S version provides many features, such as custom UI and charts, flexible user access permissions, cross-data analysis, historical time series, advanced filters, reports, custom variables, document repository, data import and export (Excel and PDF), and integration with Microsoft PowerBI.
    • Conducted code reviews.


    • Technologies:
    • .NET .NET
    • C# C#
    • WPF WPF
    • Swift Swift
    • SwiftUI SwiftUI
    • TypeScript TypeScript
    • Angular Angular
    • Scrum Scrum
  • Software Engineer

    Light Infocon - 9 years 2 months

    • Developed a workflow management system that helps organizations model and automate their business processes using Microsoft .NET technology, including Windows Forms, WPF, ASP.NET, and Visual Basic.
    • Developed an electronic document management system with rapid document retrieval using full-text search, aimed at minimizing the amount of paperwork in organizations, using Visual Basic, ASP, C++, and COM technology.
    • Developed several e-gov web applications for state and federal governments.
    • Designed and developed an object-oriented database management system using C++.


    • Technologies:
    • .NET .NET
    • C# C#
    • WPF WPF
    • JavaScript JavaScript


  • BSc.Computer Science

    Federal University of Campina Grande · 1992 - 1998

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