Duvid Rottenberg, Developer in New York City, NY, United States
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Duvid Rottenberg

Verified Expert  in Engineering

Back-end Developer

Location
New York City, NY, United States
Toptal Member Since
January 26, 2022

Duvid is a self-taught software developer with 15 years of experience specializing in back-end systems with C# and SQL in a New York-based telecommunications company. He also teaches a full-stack development course covering ASP.NET MVC, C#, and jQuery. Duvid enjoys learning how to utilize cutting-edge technologies on an ongoing basis.

C#SQL.NETFreeSWITCH.NET CoreASP.NET MVCjQueryVoIPHTML5LinuxWindowsMicrosoft SQL Server

Portfolio

ICA Institute
ASP.NET MVC, C#, HTML5, Microsoft SQL Server, jQuery
Xchange Telecom
C#, SQL, JavaScript, ASP.NET MVC, APIs, API Integration...

Experience

.NET - 15 yearsAPIs - 15 yearsSQL - 15 yearsC# - 15 yearsHTML5 - 10 yearsJavaScript - 10 yearsASP.NET MVC - 10 years.NET Core - 5 years

Availability

Part-time

Preferred Environment

Windows

The most amazing...

...system I've developed was for remote elementary school classes during the COVID-19 pandemic.

Work Experience

Instructor

2020 - PRESENT
ICA Institute
  • Taught a course in full-stack development using ASP.NET MVC, C#, HTML5, and jQuery.
  • Developed the curriculum to help students understand what's going on under the hood as they worked toward becoming professional developers.
  • Mentored students who needed additional assistance with their studies.
Technologies: ASP.NET MVC, C#, HTML5, Microsoft SQL Server, jQuery

Senior Developer

2007 - PRESENT
Xchange Telecom
  • Developed an IVR engine that incudes high-volume conferencing capabilities.
  • Created an automated system for provisioning telecom services.
  • Integrated with many third-party systems using a wide variety of API technologies.
Technologies: C#, SQL, JavaScript, ASP.NET MVC, APIs, API Integration, Interactive Voice Response (IVR)

IVR System with High-capacity Conferencing

A menu-driven phone system I developed with high stability and high capacity. The system can handle conferences with thousands of participants. Many schools used this Xchange Telecom system for remote classes during the COVID-19 pandemic.

Languages

C#, SQL, JavaScript, HTML5

Frameworks

.NET, .NET Core, ASP.NET MVC

Tools

FreeSWITCH

Libraries/APIs

jQuery

Other

APIs, API Integration, HTTP REST, VoIP, Interactive Voice Response (IVR)

Platforms

Linux, Windows

Storage

Microsoft SQL Server