Top C# Jobs in NYC, NY

You will develop and maintain components of the LLVM based toolchain, collaborating with the community while ensuring platform-specific optimizations and tests.

Architect and implement scalable React/TypeScript user interfaces for web and Electron desktop apps. Integrate native modules (C++/Objective-C), work with REST APIs under zero-knowledge principles, optimize performance and accessibility, lead code reviews, mentor engineers, and participate in CI/CD and automated testing to deliver secure, high-quality features.

The Senior Software Engineer will develop and maintain client-side applications, improve installation workflows, and ensure enterprise deployment support for cybersecurity products.

As a C++ Trading & Simulator Engineer, you will design, develop, and optimize trading systems and analytics platforms while collaborating closely with quantitative researchers. Your focus will be on high-performance systems for algorithmic trading and improving the infrastructure for research and trading.

Develop user interface components for ArcGIS Pro using C# and WPF, work in an agile team, and design software solutions for raster and imagery processing.

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 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.

Develop and maintain the C# SDK for Supabase, ensuring a seamless experience for .NET developers, while engaging with the community and collaborating across teams.

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.

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

The role involves enhancing market access systems for low-latency crypto trading, collaborating with traders and systems engineers, and optimizing performance.

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.

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.

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.

As a Senior Software Engineer at Ripple, you will enhance the XRP Ledger's performance, participate in the software development lifecycle, and engage with the open-source community.

Contribute to and optimize the performance of ClickHouse, assist with debugging, collaborate with teams, and engage with the open-source community.

The role involves designing and implementing high-throughput services in C++, optimizing performance, and contributing throughout the software development lifecycle, including testing and production support.

Design and implement high-performance system software for medical devices, collaborating with hardware engineers and ensuring adherence to clinical standards.

Lead a team to develop SaaS solutions while coding and mentoring engineers. Responsible for technical leadership and team management.

Design and develop scalable services/APIs using C#/.NET/.NET Core, collaborate during SDLC, mentor junior engineers, and ensure code quality.

Design high-performance C++ libraries for automated PCB design challenges, mentoring peers and shaping technical direction while collaborating with experts in various fields.

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