Top C# Jobs in NYC, NY

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

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

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 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.

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.

Develop and maintain systems for systematic investing, focusing on data pipelines, trading tools, and technical monitoring within a collaborative team.

Develop and maintain front-, middle- and back-office platforms for investment banks, including trade capture systems and real-time multithreaded risk portals. Participate in full software development lifecycle, design system components, write and test C/C++ code on UNIX, work with relational databases, and communicate technical solutions to non-technical stakeholders.

Design and maintain high-performance systems for algorithmic trading, optimizing data pipelines and collaborating with researchers and traders to enhance trading systems.

As a Senior Software Engineer, you will design and develop key components of Stellar Core, enhance blockchain technology, and collaborate with engineering teams.

The role involves leading the development and maintenance of execution algorithms and frameworks, optimizing trading efficiency across cash and derivative products.

Design, build, and maintain scalable .NET/C# full-stack applications and integrations for Private Wealth. Collaborate with business partners, participate in SDLC, address production issues, lead design reviews, optimize platforms, and mentor junior developers while using Agile practices and AI-assisted development tools.

The role involves developing and enhancing trade and position management infrastructure, building interfaces, and participating in trade processing.

The role involves developing server-side C# applications for trading systems, particularly focusing on risk management and derivatives market data.

The Senior Software Engineer will design core components of the XRP Ledger, integrate a WASM VM, and lead software development from design to testing in C++ and Rust.

The role involves developing and supporting the Citi Velocity platform, providing technical oversight, collaborating with global teams, and managing complex system integrations while ensuring compliance with standards and risk management procedures.

Seeking a C++ Developer with at least 3 years of experience in software development, strong database skills, and knowledge of data structures and algorithms.

The role involves software development utilizing C/C++, with a focus on data structures, algorithms, and database management. It values communication and analytical skills, as well as experience throughout the software development lifecycle.

The C++ Developer will work on software development, enhance mission-critical software, and manage requirements through the full development lifecycle.

Senior Backend Engineer responsible for designing and building backend services and microservices for payment products. Work includes C++/C#/Java development, REST APIs, Informix/Postgres data stores, CI/CD, cloud deployments, encryption, TDD, and collaborative agile delivery with ownership of architecture and operational quality.

Seeking a senior C/C++ developer with financial experience to design and implement features for a derivative pricing platform. Responsibilities include project management, bug fixing, and communication with product managers.

Develop low latency algorithmic trading strategies, enhancing systems for market data and order execution while collaborating with investment professionals.