.NET, WCF/WebServices (

Sonsoft Inc

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Chicago, IL, 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.

Job Description:-

  • 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.

Basic Qualifications :-

  • 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 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

Develop middleware components, services, and APIs using .NET, WCF, and related technologies in an SOA environment.

Job title

.NET, WCF/WebServices

Experience level

4+ years

Industry

software

Location requirements

Must be in Chicago, IL; remote work not specified

Salary

Not specified

Visa sponsorship

H-1B sponsor history

Management role

No

Skills & keywords

Required skills

c#.netentity frameworklinqwcfwebapisql servermultithreadingobject oriented programmingdesign patternsagilejirajenkinscontinuous integrationcontinuous deliverynosqlmongodb

Preferred skills

tradingfinancial serviceswealth management

Specializations

middleware.netwcfwebservicessoa
Locations

Structured locations inferred from the posting.

Chicago, IL, USA

On-site City