Top C# Jobs in NYC, NY

Develop scalable server-side features, online services, and collaborate with teams. Requires C#, .NET expertise and experience in distributed systems.

As a Full Stack Engineer, you'll develop online services features using C#, React, and ensure best practices in software development. Collaboration with global teams is key.

The role involves building and supporting production-level trading systems in C++ for credit and rates products, collaborating with traders and quantitative researchers.

The Senior Software Engineer will enhance software security measures across Rockstar Games' products, focusing on anti-cheat and anti-tamper technologies. Responsibilities include debugging, performance profiling, and collaborating with cross-functional teams to improve game security.

Software Engineers at Citadel develop software solutions for trading platforms, optimizing performance and functionality, and support trading activities.

Design and develop low latency, high-performance trading systems. Optimize code and solutions for hardware efficiency, ensuring seamless application integration.

The Market Data Engineer will design and implement high-performance market data systems, focusing on trading infrastructure, performance optimization, and system resiliency.

As a Software Engineer, you will design, develop, and deliver high-quality software, contribute to code reviews, monitor application performance, and ensure maintainability and consistency across products.

The Senior Software Engineer will design, develop, and maintain scalable backend services and APIs, working with cross-functional teams to improve cancer care through technology and data solutions.

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

Build and optimize high-performance C/C++ and Rust server applications and feed handlers for market data. Implement parsers, petabyte-scale processing tools, and low-latency, high-throughput optimizations. Collaborate on build/deploy/CI, monitoring, and ensure reliable feature rollouts.

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.

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

The Senior Software Developer will design high performing, scalable server systems, develop APIs, and enhance web security while working on challenging projects.

The role involves developing C++ applications for Credit Risk systems, implementing pricing models, and supporting strategic initiatives in the finance sector.

Design, implement, and optimize high-performance, low-latency trading infrastructure for research and production. Partner with researchers and traders to build market data, execution, backtesting, and deployment systems. Develop tools for prototyping, simulation, monitoring, risk management, and performance analysis across the strategy lifecycle.

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

As a Senior Engineer on the Market Data team, you will design high-performance libraries for trading systems, ensuring fast and reliable market data delivery while collaborating with various teams.

As a C++ Software Engineer, you'll develop market data infrastructure, enhance trading systems' performance, and collaborate with researchers to improve trading strategies.

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

Design, build, and operate scalable .NET/C# applications and integrations for Private Wealth. Own end-to-end delivery, write well-tested code, optimize data and queries, troubleshoot production issues, mentor junior developers, and drive platform modernization and CI/CD improvements.

The role involves developing and maintaining trading user interfaces, enhancing performance of C# components, and adapting to project changes while collaborating with teams.

The C# / .NET Developer will design and maintain middleware applications, build Shopify integrations, and support a mobile app backend in a remote work environment.

The Senior C++ Developer will work on Windows desktop and system-level programming, handle legacy systems, and collaborate in software development.