Top C# Jobs in NYC, NY

Develop client-side solutions and APIs for Spectacles, maintaining AR software in a constrained environment and collaborating with cross-functional teams.

Develop and optimize low-latency trading systems, work with C++, and improve performance-critical code while collaborating within a team.

Software Engineers at Citadel develop, maintain, and support high-performance trading platforms, focusing on custom software solutions and system stability.

Design, develop, and support software solutions for optimized performance in a trading platform. Collaborate with business leaders and analyze complex problems.

Develop distributed storage systems for HRT's needs, collaborate with peers, and enhance data storage libraries and tools for research teams.

Develop and improve technical solutions for research efficiency, optimize workloads, communicate with users, and lead the software infrastructure for Algo research.

The Software Engineer will improve performance of C# software components, evaluate new technologies, and communicate effectively across teams.

As a Software Engineer, you will write code and maintain technology critical to trading algorithms and success in a fast-paced environment.

The C++ Quant Developer will work on fixed income electronic trading systems, focusing on software performance, automated quoting, execution, and risk management.

The Staff C++ Software Engineer will lead the design and development of a C++ SDK for ultrasound devices, collaborating across teams to ensure performance, usability, and maintainability.

The C++ Developer will design, develop, and maintain applications, particularly in C++ on Unix, and perform process analysis and improvement.

The Senior Developer will design, build, and maintain high-performance applications using C# and Microsoft technologies, while mentoring junior developers and participating in agile practices.

The engineer will develop low latency trading systems, optimize performance, and improve frameworks. Collaboration with traders and researchers is key.

The C++ Developer will implement, test and deploy features for a high-frequency trading system, optimize performance, and debug issues.

As a Software Engineer in Optiver's HFT team, you'll develop trading infrastructure, collaborate with researchers, and optimize algorithms for automated trading.

The C++ Software Engineer will develop trading platforms, ensure high operational safety, and collaborate with teams to deliver software solutions.

Lead a team of developers to build and maintain web applications, guide performance reviews, define objectives, and collaborate across departments.

Develop and optimize automated trading infrastructure, collaborate with Traders and Quants on trading algorithms, create scalable multi-tiered applications.

Architect and optimize a high-frequency trading platform while managing multiple tasks and ensuring robust access to market data.

The Senior Backend Engineer will develop core mechanisms for financial planning, lead backend development, mentor peers, and manage the full development cycle.

The Senior Software Engineer will design and develop applications for commodity trading systems, mentor juniors, and collaborate in an agile environment.

Design and implement ultra-low-latency feed handlers in C++, optimize for performance, and collaborate with teams for market data systems.

Develop and support low-latency C/C++ trading systems, conduct testing and code reviews, and enhance platform performance within a collaborative team.

The Sr. Software Engineer will develop scalable cloud-native APIs using .NET, lead architectural discussions, and mentor team members while improving core system components.

As a Senior Software Engineer, you will design and maintain core billing systems, lead technical discussions, mentor junior developers, and implement security measures while optimizing system performance.