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Elder Santos

Elder Santos

São José dos Campos - State of São Paulo, Brazil
Member since March 6, 2013
An accomplished software engineer, Elder specializes in machine learning and data science. He has expertise in the full life cycle of the software design process, including: requirement specifications, prototyping, proof of concept, human-interface design, implementation, testing, and maintenance.
Elder is now available for hire
  • C#, 8 years
  • Python, 6 years
  • SQL, 6 years
  • JavaScript, 6 years
  • Machine Learning, 5 years
  • Node.js, 3 years
  • R, 1 year
  • Express.js, 1 year
São José dos Campos - State of São Paulo, Brazil
Preferred Environment
Mac, Sublime, GitHub
The most amazing... I've built is an aircraft maintenance program directly connected to the military 1553 bus, which uses shortest path algorithms and a little AI.
  • Technical Lead
    2008 - PRESENT
    • Supported software engineering team with technical decision-making.
    • Worked as Senior Developer in .NET platform.
    • Handled development of applications related to financial products.
    • Maintained old or out-dated C# projects for customers around the world.
    • Updated a legacy application using ASP.NET MVC, C#, JavaScript, MVVM, and Twitter Bootstrap, releasing an entirely new version.
    Technologies: C#, T-SQL, PL-SQL, PostgreSQL, WPF, WCF, JavaScript, AWS, Azure, SIlverlight, EntityFramework, NHibernate, Dapper, Oracle
  • Technical Lead
    2007 - 2008
    Microsoft Innovation Center
    • Handled technical requirements in interop projects.
    • Developed cross-platform software for Windows and Linux.
    • Worked with the most up-to-date Microsoft technologies including Silverlight, WPF, WCF, and WWF.
    • Researched local market and provided training for locals.
    • Supported local companies with technologies like: Microsoft Silverlight, WPF, WCF, WWF and SQL Server.
    Technologies: C#, VB.NET, Sharepoint, SQL Server, Oracle, Linux, Java, WF, WPF, WCF, Silverlight
  • Solution Archtect
    2007 - 2008
    Onset Technologies
    • Provided interoperability between .NET and Ruby applications.
    • Analyzed software requirements and provided solutions based on the Microsoft platform.
    • Solved business problems with solutions architected under the .NET platform and other Microsoft products.
    • Held responsibility for internal and external projects as Project Manager using Microsoft Sharepoint technologies.
    • Created a global application for Johnson & Johnson to monitor all their other applications (including ERP) around the world.
    Technologies: C#, SQL Server, Oracle, My SQL, VB.NET, C++, Sharepoint
  • SPL Fiscal (Development)

    A web application written in ASP.NET using NHibernate to handle ORM communication with SQL Server and Oracle databases. the app is used to generate digital files dynamically according to user configurations.
    Includes a great background execution process to analyze data and yield results in different formats.

  • Keeptrue Web Site (Development)

    A Sharepoint 2010-based web site used to offer audits on Brazilian fiscal files.

  • Data Mining for Predictive Social Network Analysis (Publication)
    Analysts have come to recognize social network data as a virtual treasure trove of information for sensing public opinion trends and groundswells of support. In this article, Toptal Engineer Elder Santos describes the techniques he employed for a proof-of-concept that effectively analyzed Twitter Trend Topics to predict, as a sample test case, regional voting patterns in the 2014 Brazilian presidential election.
  • Languages
    HTML, Python, C#, CSS, HTML5, C++, JavaScript, SQL, R, C, F#, TypeScript
  • Frameworks
    ASP.NET MVC, .NET, Machine Learning, Flask, Windows Communication Framework (WCF), Entity, Bootstrap, ASP.NET Web API, NHibernate, Django, AngularJS, Express.js, Caliburn, Knockout.js
  • Libraries/APIs
    jQuery, jQuery UI, Node.js, Backbone.js, Twitter API, LinkedIn API, Facebook API
  • Tools
    Microsoft Visual Studio, Sublime Text, GitHub, Subversion (SVN), LINQ to SQL, TextMate, Mercurial, Microsoft Project, Talend ETL, Microsoft Team Foundation Server, Emacs
  • Paradigms
    Object-oriented Programming (OOP), Agile Software Development, Design Patterns, Procedural programming, Functional Programming, Parallel & Distributed Computing
  • Storage
    Microsoft SQL Server, MongoDB, PostgreSQL, NoSQL, JSON, SQLite, MySQL
  • Platforms
    Oracle, Mac OS, Windows 8, Azure, Linux, iOS, Windows
  • Master degree in Artificial Intelligence
    2014 - 2016
    Universidade Federal de São Paulo - Sao Jose dos Campos
  • Bachelor degree in Computer Science
    2008 - 2012
    Universidade Federal de Sao Carlos - Sao Carlos, Brazil
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