JOBSEARCHER

. NET, Developer with WCF ,web services

SonsoftEvanston, ILL6 LeadSeptember 15th, 2026
Overview In this role you will design and deliver middleware components in .NET for a SOA environment, using C#.Net, EF, LINQ, WCF/WebAPI. You will build high-performance, multithreaded services and abstract business/data layers, collaborating across global delivery teams. You will optimize performance and participate in architecture reviews to ensure scalable solutions. The position offers exposure to trading/financial services domains and a cross-location, cross-functional team culture. ResponsibilitiesDevelop middleware components, libraries, and services using C#.Net, EF, LINQ, WCF/WebAPI in a SOA worldDesign and implement multithreaded, high-performing applications across multi-node environmentsImprove performance of components, applications, and servicesCreate abstract business and data access layersPerform design and architecture reviewsCollaborate within diverse, multi-stakeholder teamsContribute to SQL Server development and performance tuningParticipate in Agile/Scrum/Kanban processesEngage with NO-SQL environments (MongoDB) as a value addAssist in global delivery initiatives with geographically dispersed teams Key requirementsBachelor’s degree or foreign equivalent; or three years of progressive experience in lieu of educationMinimum 4 years of experience in IT4+ years in middleware development in .NET4+ years in multithreading/multi-node high-performance apps2+ years SQL Server development and performance tuning3+ years Agile/Scrum/Kanban3+ years using Jira, Jenkins and CI/CD practicesExperience in design and architecture reviewsKnowledge of design patterns and OOPteam collaborationstakeholder managementproblem solvingC#.NetEntity FrameworkLINQ