Senior Application Developer

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This range is provided by Global Technical Talent, an Inc. 5000 Company. Your actual pay will be based on your skills and experience talk with your recruiter to learn more. Base pay range

$75.00/hr - $82.00/hr Primary Job Title: Senior Application Developer / Senior .NET Developer Alternate/Related Job Titles: Senior .NET Software Engineer Full Stack Windows Developer Application Migration Engineer (.NET) Location: New York, NY

Onsite Flexibility:

Onsite (potential hybrid; to be confirmed)

Contract Details: Position Type:

Contract Contract Duration:

6 months (potential for extension) Pay Rate:

$75-$82/hr

Job Summary: The Senior .NET Developer will lead the modernization of a legacy Front Office Windows application, transitioning from .NET Framework to .NET 8. The role focuses on enhancing performance, implementing advanced multithreading, and optimizing architectural design. This position demands deep expertise in WinForms, WPF, Windows Services, and SQL Server, ideally in a financial services context.

Key Responsibilities: Lead the migration of a legacy application to .NET 8, with performance and architecture optimization. Develop multithreaded components using TPL, async/await, and concurrency control patterns. Maintain and enhance Windows Services for background processes. Implement XML data processing and Excel Interop for data sharing. Integrate RESTful APIs for secure financial data exchanges. Use Git for source control and TeamCity for CI/CD pipeline management. Optimize SQL Server performance through advanced tuning techniques. Collaborate with cross-functional teams to ensure scalable, maintainable solutions. Perform code profiling, debugging, and software performance optimization. Contribute to unit testing and broader automation initiatives. Required Experience:

7-10 years of professional development experience. Demonstrated success migrating large-scale applications to .NET 7+. Proven expertise in:

C#, WinForms, WPF Windows Services Multithreading and parallel processing XML serialization and processing SQL Server performance tuning Git and TeamCity CI/CD practices

Nice-to-Have Experience:

.NET 8 implementation experience Financial systems or trading application background Knowledge of PRISM and Component Application Block Azure or AWS cloud integration Python scripting for automation Familiarity with OTC derivatives Required Skills:

.NET Application Migration (.NET Framework to .NET 8) WinForms/WPF UI Development Multithreading and Concurrency (TPL, async/await) Preferred Skills:

Financial Data API Integration Windows Services Architecture SQL Server Query Optimization TeamCity CI/CD Pipelines XML & Excel Interop Additional Skills:

Agile SDLC & iterative development Simulation and modeling of software architecture Operational and tactical planning support Benefits: Medical, Vision, and Dental Insurance Plans 401k Retirement Fund

About the Client: Leading North American financial institution offering a wide range of reliable financial products and services. Committed to customer satisfaction and community impact, they provide personalized banking solutions to meet your unique needs. Join a diverse and inclusive team dedicated to creating a more secure and sustainable future.

About GTT: GTT is a minority-owned staffing firm and a subsidiary of Chenega Corporation, a Native American-owned company in Alaska. As a Native American-owned, economically disadvantaged corporation, we highly value diverse and inclusive workplaces. Our clients are Fortune 500 banking, insurance, financial services, and technology companies, along with some of the nations largest life sciences, biotech, utility, and retail companies across the US and Canada. We look forward to helping you land your next great career opportunity!

25-24422 :#gttjobs

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Engineering and Information Technology Industries

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