Duvid Rottenberg, Developer in New York City, NY, United States
Duvid is available for hire
Hire Duvid

Duvid Rottenberg

Verified Expert  in Engineering

Back-end Developer

New York City, NY, United States

Toptal member since January 26, 2022

Expertise
C#SQLJavaScriptjQueryVoIPHTML5LinuxWindows Development
Bio

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.

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 years
  • SQL - 15 years
  • APIs - 15 years
  • C# - 15 years
  • HTML5 - 10 years
  • JavaScript - 10 years
  • ASP.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)

Experience

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.

Skills

Libraries/APIs

jQuery

Tools

FreeSWITCH

Languages

C#, SQL, JavaScript, HTML5

Frameworks

.NET, .NET Core, ASP.NET MVC

Platforms

Linux, Windows

Storage

Microsoft SQL Server

Other

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

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.

1

Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring