.Net Developer /C#

Sonsoft Inc

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Denver, CO, us on site Until 8/21/2026 H-1B sponsor history First posted February 24, 2026 Last posted February 24, 2026
Job description

SonSoft is an IT Staffing and consulting firm and duly organized under the laws of the Commonwealth of Georgia. We are growing at a steady pace specializing in the fields of Software Development, Software Consultancy and Information Technology Enabled Services.

Preferred
• At least 4 years of experience in .NET technology
• At least 4 years of experience with C#,.NET 2.0-4.5 (ASP.Net, WCF, WF, ADO.Net, Asmx, WebAPI), Visual Studio 2010/2013
• Strong knowledge of OOPS, Data Structures and Design patterns and Asynchronous programming
• At least 2 years of experience Designing and Developing Web Applications using Web-Services ( REST/SOAP)
• Good experience with Client side technologies such as MVC(x), JavaScript, CSS/SASS, Angular, Bootstrap, Knockout, JQuery, HTML/HTML5
• Strong experience profiling and correcting memory usage and threading issues, and optimizing code for performance
• Web services standards and related technologies (XML, XSL, X-Path, JSON, Rest, Soap)
• Web Security, Asp.Net Web security infrastructure
• Good DB skills - SQL Server 2008, Transact SQL, Stored Procedures – Queries and SP performance tuning
• Unit and Integration Testing
• Experience with designing multi-threaded, scalable, secure, and high performance distributed applications.
• Strong Analytical skills. Ability to translate business requirement to technical solutions. Be able to do complex designs and follow the best engineering practices
• Good written an d verbal communication skills
• Experience and desire to work in a Global delivery environment

Qualifications Basic
• Bachelor’s degree or foreign equivalent required from an accredited institution. Will also consider three years of progressive experience in the specialty in lieu of every year of education.
• At least 4 years of experience with Information Technologies.

** U.S. Citizens and those who are authorized to work independently in the United States are encouraged to apply. We are unable to sponsor at this time.
Note:-
1. This is a Full-Time & Permanent job opportunity for you.
2. Only US Citizen, Green Card Holder, GC-EAD, H4-EAD & L2-EAD can apply.
3. No OPT-EAD, H1B & TN candidates please.
4. Please mention your Visa Status in your email or resume.

About this role

Summary

Developing and maintaining scalable, high-performance web applications using .NET, C#, and related technologies.

Job title

.Net Developer /C#

Experience level

4+ years

Industry

software

Location requirements

Must be in Denver, CO; remote not specified

Salary

Not specified

Visa sponsorship

H-1B sponsor history

Management role

No

Skills & keywords

Required skills

.NET 2.0-4.5C#WebAPIASP.NetWCFWFADO.NetJavaScriptCSS/SASSAngularBootstrapJQuerySQL Server 2008Stored Proceduresunit testingintegration testingXMLJSONRestSoap

Preferred skills

OOPSData StructuresDesign patternsAsynchronous programmingperformance tuningmemory profilingmultithreaded applications

Specializations

.NETC#web developmentweb servicesASP.Net
Locations

Structured locations inferred from the posting.

Denver, CO, USA

On-site City