Top Remote C# Jobs

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

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.

Design and maintain high-performance management solutions for datacenters, working with Rust, Go, and C++ while focusing on distributed systems and hardware integration.

Design, build, and maintain scalable web applications using React frontend and C# backend. Architect solutions, implement database access with Entity Framework or ADO.NET against MSSQL, develop RESTful APIs, optimize performance, deploy and maintain cloud services on Azure, collaborate with cross-functional teams, and write clean, testable code.

Develop and maintain a high-performance image processing system, optimizing algorithms for efficiency, and collaborating with hardware engineers for seamless integration.

Develop and maintain robust back-end applications, contribute to architecture decisions, and ensure software quality through automated testing and best practices.

Seeking a Senior iOS Developer to design and build high-performance iOS applications. Requires 5+ years in iOS development with Swift and Objective-C, experience with REST services, and skills in data persistence frameworks. Occasional travel may be needed.

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

Develop and maintain .NET Core trading systems for Linux with service-oriented architecture and multi-threaded processing. Implement async, lock-free structures and distributed systems, write unit and integration tests, optimize SQL queries, design data structures and algorithms, and work with communication protocols (SignalR, gRPC, HTTP). Use PostgreSQL, Docker, and AWS in the deployment stack.

Remote backend C# developer to build and optimize a high-load spot-exchange matching engine. Improve performance and API throughput, implement business features, write unit and integration tests, work with .NET Core and PostgreSQL on AWS, and apply multithreading, async, and distributed systems concepts.

Develop and optimize ultra-low-latency, high-performance trading infrastructure in modern C++. Implement and tune order execution, market data connectivity, multi-threaded systems, and risk modules. Profile and benchmark real-time systems, collaborate with quants and traders, and maintain robust, fault-tolerant continuous trading operations.

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

The Back End Software Engineer will design and build scalable services for a SaaS platform, collaborate with teams, and contribute to quality code and architecture discussions.

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

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

Build, enhance, and scale a cloud-native, multi-tenant SaaS platform across React frontend and C#/.NET Core backend. Design RESTful APIs, microservices, and AWS infrastructure, improve performance and reliability, mentor engineers, and collaborate with cross-functional teams to deliver high-availability solutions.

Develop internal web applications using C# and Blazor, optimize SQL queries, integrate AI/ML models, and collaborate across teams.

Design, build, and maintain backend workflow orchestration and state management for analyzer integrations on the ECL platform. Modernize legacy .NET systems, ensure reliable event-driven operations, collaborate with integration, infrastructure, and QA teams, and preserve workflow behavior during knowledge transfer.

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

PrivateID seeks a Principal C++ Engineer with at least 10 years of experience to lead complex systems and scale their platform in a remote-first environment.

As a Software Engineer, you will develop and maintain the Tally software stack, enhance robot navigation and autonomy, and support CI/CD processes.

Develop software and enhance systems in C++ on Linux, while collaborating with analysts and engineers to create data processing tools.

Develop high-quality code for Fusion, troubleshoot technical issues, engage in agile practices, and mentor junior engineers. Collaborate on design and architecture while ensuring security and best practices.

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