.NET Developer with WCF/WebServices

Sonsoft Inc

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

Sonsoft , Inc. is a USA based corporation duly organized under the laws of the Commonwealth of Georgia. Sonsoft Inc. is growing at a steady pace specializing in the fields of Software Development, Software Consultancy and Information Technology Enabled Services.

  • At least 4 years of experience in working on middleware development in .Net. Building components, libraries, Services using C#.Net, Entity Framework, LINQ, WCF/WebServices/WebAPI in an SOA world.
  • Strong understanding of processes and threads with at least 4 years of experience in creating Multithreaded, multi-node, high performing applications.
  • Ability to effectively improve the performance of the components/applications/services.
  • Deep understanding and application of object oriented programming.
  • Well versed with various design patterns.
  • At least 4 years of experience in creating abstract business layer and data access layers.
  • Strong SQL Server development knowledge with at least 2 years of experience in writing complex DB objects as well as performance tuning it.
  • At least 3 years of experience in Agile, Scrum or Kanban Methodologies.
  • At least 3 years of experience in tools such as Jira, Jenkins and Continuous Integration and Continuous Delivery..
  • Knowledge in NO-SQL environment, MongoDB is a value add.
  • At least 3 years of experience in Design and architecture review.
  • Ability to work in team in a diverse/ multiple stakeholder environment.
  • Experience in Trading, Financial Services and Wealth Management is preferred.

  • 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.
  • Minimum of 4 years of experience in the field of Information Technology..

** U.S. citizens and those authorized to work in the U.S. 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, TN Visa, GC-EADH4-EAD & L2-EAD can apply.
  3. No OPT-EAD & H1B Consultants please.
  4. Please mention your Visa Status in your email or resume.
About this role

Summary

Develop middleware components using .NET, WCF, web services, multi-threading, and optimize applications.

Job title

.NET Developer with WCF/WebServices

Experience level

4+ years

Industry

software

Location requirements

Austin, TX, US; on-site role, no remote work permitted.

Salary

Not specified

Visa sponsorship

H-1B sponsor history

Management role

No

Skills & keywords

Required skills

C#.NETEntity FrameworkLINQWCF/WebServices/WebAPISQL Servermultithreadingobject oriented programmingdesign patternsdata access layersperformance tuningAgileScrumKanbanJiraJenkinsCI/CDSQLMongoDB

Preferred skills

tradingfinancial serviceswealth management

Specializations

middleware development.NETWCFWebServicesSOA
Locations

Structured locations inferred from the posting.

Austin, TX, USA

On-site City