Application Developer - Expert (.NET Developer )

Our Client, a Financial Banking company, is looking for an Application Developer - Expert (.NET Developer ) for their New York, NY/Hybrid location.

Responsibilities:

+ Modernize & Optimize: Refactor legacy codebases, implement multithreaded solutions, and architect for scalability and performance.



+ Windows Services: Develop and maintain robust Windows Services for background processing.



+ Data Integration: Enable seamless data exchange between applications and financial models using Excel Interop, XML processing, and serialization.



+ API Development: Build and consume REST APIs for integration with financial data sources.



+ Collaboration: Work closely with quantitative analysts, developers, and cross-functional teams to ensure code quality, maintainability, and scalability.



+ Quality & Testing: Conduct performance profiling, debugging, and write unit tests to support automated testing strategies.



Requirements:

+ C#, WinForms, and .NET 7/8 – 10 years

+ Experience in WPF – 5+ years

+ Multithreading, parallel processing (TPL, async/await, locks) – 7 years

+ Windows Services – 5+ years

+ XML processing and serialization – 5+ years

+ SQL database skills – 5+ years

+ Git, CI/CD (ideally TeamCity) – 5 Years

+ Cloud integration (Azure/AWS)

+ Python scripting for automation or data processing

+ Knowledge of OTC derivatives or financial instruments

+ Banking experience

Why Should You Apply?



+ Health Benefits

+ Referral Program

+ Excellent growth and advancement opportunities

As an equal opportunity employer, ICONMA provides an employment environment that supports and encourages the abilities of all persons without regard to race, color, religion, gender, sexual orientation, gender identity or express, ethnicity, national origin, age, disability status, political affiliation, genetics, marital status, protected veteran status, or any other characteristic protected by federal, state, or local laws.