Lead Software Engineer
2016 - PRESENTJoinesty, Inc.- Created the whole infrastructure back- and front-end to support thousands of clients.
- Managed the development team.
- Designed and built a solution to store sensitive data from customers.
Technologies: C#, SQL Server, .NET Core, Python, TypeScript, Node.js, AWS, Angular/ReactTechnical Lead
2008 - 2016LynasLogic- Supported software engineering team with technical decision-making.
- Worked as a senior developer in the .NET platform.
- Handled the development of applications related to financial products.
- Maintained old or outdated C# projects for customers around the world.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, Entity Framework, NHibernate, Dapper, OracleTechnical Lead
2007 - 2008Microsoft 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 the 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, SilverlightSolution Archtect
2007 - 2008Onset 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.
- Managed internal and external projects 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
C# Developer in 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
Portfolio
- Joinesty, Inc.C#, SQL Server, .NET Core, Python, TypeScript, Node.js, AWS, Angular/React
- LynasLogicC#, T-SQL, PL-SQL, PostgreSQL, WPF, WCF, JavaScript, AWS, Azure, SIlverlight...
- Microsoft Innovation CenterC#, VB.NET, Sharepoint, SQL Server, Oracle, Linux, Java, WF, WPF, WCF...
Experience
- C#, 8 years
- JavaScript, 6 years
- Python, 6 years
- SQL, 6 years
- Machine Learning, 5 years
- Node.js, 3 years
- Express.js, 1 year
- R, 1 year
Availability
Part-time
Preferred Environment
Mac, Sublime, GitHub
The most amazing...
...software I've built is an aircraft maintenance program directly connected to the military 1553 bus, which uses shortest path algorithms and a little AI.
Employment
Experience
- 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. - 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.
Skills
Languages
Python, C#, HTML, R, C++, HTML5, SQL, JavaScript, CSS, C, TypeScript, F#Frameworks
Flask, Machine Learning, .NET, ASP.NET MVC, AngularJS, Django, Express.js, Entity, Windows Communication Framework (WCF), Bootstrap, NHibernate, ASP.NET Web API, Knockout.js, CaliburnLibraries/APIs
jQuery, Node.js, jQuery UI, Facebook API, LinkedIn API, Twitter API, Backbone.jsTools
GitHub, Sublime Text, Microsoft Visual Studio, Mercurial, TextMate, LINQ to SQL, Subversion (SVN), Microsoft Project, Emacs, Microsoft Team Foundation Server, Talend ETLParadigms
Object-oriented Programming (OOP), Agile Software Development, Functional Programming, Procedural Programming, Design Patterns, Parallel & Distributed ComputingStorage
MongoDB, Microsoft SQL Server, JSON, NoSQL, PostgreSQL, MySQL, SQLitePlatforms
Oracle, Windows, iOS, Linux, MacOS, Azure
Education
- Master degree in Artificial Intelligence2014 - 2016Universidade Federal de São Paulo - Sao Jose dos Campos
- Bachelor degree in Computer Science2008 - 2012Universidade Federal de Sao Carlos - Sao Carlos, Brazil
Certifications
- Microsoft® Certified Technology SpecialistDECEMBER 2008 - PRESENTMicrosoft
- Microsoft Certified Dynamics SpecialistAUGUST 2008 - PRESENTMicrosoft
- Microsoft Certified Application DeveloperAUGUST 2008 - PRESENTMicrosoft
- Microsoft Certified Systems Administrator:SEPTEMBER 2004 - PRESENTMicrosoft
- Microsoft Certified Database AdministratorJUNE 2003 - PRESENTMicrosoft
- Microsoft Certified Solution DeveloperJANUARY 2002 - PRESENTMicrosoft
