Top C# Jobs

As a Staff Software Engineer for Liquidity Management, you'll lead architectural decisions, mentor engineers, and drive platform development, focusing on scalable, reliable systems for treasury management in a fast-paced environment.

Design, build, and implement changes to Stellar Core while working on performance improvements, decentralization, and incentive mechanics. Collaborate on architectures and contribute to code reviews under the Stellar Development Foundation.

Design and develop key components of Stellar Core while collaborating with team members. Engage in performance optimization and ensure the system's scalability and security.

Design and build key components of Stellar Core, improve system performance, collaborate on architecture, and lead technical discussions.

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

Lead design and development of high-performance backend infrastructure using modern C++ (and optionally C# or Java). Architect scalable, low-latency distributed systems and microservices across Linux and Windows, optimize performance and memory, implement multithreaded processing, integrate databases and messaging systems, mentor engineers, and drive code quality and CI/CD best practices.

Design and implement C/C++ software and OS-level environment for the Palladium emulation platform. Write feature and test specifications, implement unit/integration/system tests, collaborate across teams, and optimize algorithms and performance. Work may include Linux/kernel drivers, multithreading, and TCP/IP networking.

Design, refactor, and build high-performance C++ core infrastructure for vehicle dynamics and Starlink simulations. Lead Monte Carlo and HPC simulation development, optimize performance and reliability, create testing/HITL frameworks and visualization tools, and collaborate cross-functionally to model multi-body physics, environmental effects, and hardware behavior while improving CI, profiling, and testability.

As a Software Engineer, you will design, prototype, and develop software solutions for semiconductor equipment, focusing on machine learning and AI applications. Responsibilities include troubleshooting, documentation, and project requirements analysis.

Refactor and develop complex C++20 software to be platform-independent and containerized (Docker). Perform systems modeling, simulation, analysis, collaborate with hardware engineers, document software, and potentially lead junior staff. Work onsite supporting a federal customer at Redstone Arsenal; must be US citizen able to obtain security clearance.

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.

Develop and enhance 3D analytic capabilities for ArcGIS Pro using C++. Responsibilities include building components, managing large datasets, and applying algorithms.

Design, develop, and maintain web applications using C#, .NET, AngularJS, TypeScript and Node.js. Collaborate with customers and team to define requirements, ensure performance and quality, fix bugs, participate in code reviews, and maintain code quality within an Agile environment.

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

Develop and optimize core infrastructure for autonomous driving. Focus on low-latency execution, component health monitoring, and system performance improvements.

Lead design and delivery of complex backend features for a high-scale online banking platform. Own code from design to production, modernize legacy systems, develop microservices, design APIs, implement tests, ensure secure coding, use AI-assisted tools, troubleshoot issues, and document APIs while collaborating with product, QA, and front-end teams.

Lead design and implementation of a low-latency C++ trading platform covering execution, market data, order and risk management. Build direct exchange connectivity, optimize microsecond/nanosecond performance, collaborate with traders and quants, and own systems end-to-end in production trading environments.

Design, build, and maintain large-scale, distributed API-driven systems using C#/.NET and SQL. Integrate AI (LLMs, agents, prompt engineering) to improve customer experience, observability, automation, and data quality. Lead design, code reviews, telemetry-driven diagnostics, and collaborate with Product, Research, and Data teams to deliver AI-powered platform capabilities.

Develop and maintain high-performance, scalable system software and libraries for web/payment platforms. Build multi-threaded C++ servers, ensure HTTP protocol correctness, collaborate with distributed teams, perform code reviews, mentor engineers, and use Python for tooling or automation.

Looking for mid to senior level .NET/C# developers with SharePoint experience to enhance customer experience through new functionality. Candidates will document business requirements and develop application design documentation.

Design, develop, and maintain C++ client/server applications and web services on Win32. Implement object-oriented, multithreaded, TCP/IP networking solutions, collaborate with business analysts, QA, product management and end users, and follow agile practices to integrate testing and support.

Design, build, test, and support web and client-server applications; lead custom SharePoint intranet development; implement front-end features using C#/.NET and JavaScript frameworks; optimize performance and scalability; produce technical specifications, documentation, QA, and user training; maintain .NET certifications.

Design, develop, test, and support C++ software solutions. Own end-to-end features, create technical designs and documentation, estimate work, lead onshore/offshore developers and QA, and troubleshoot complex hardware/software systems.

Maintain and enhance the QLS-VO app server codebase using C and Pro*C. Develop TCP/IP socket code, write Oracle queries, compile on Linux, and perform testing and troubleshooting. Support Pro*C compilation and relational DB / Cron understanding.

Develop and support applications using C# and .NET, provide production support, and troubleshoot issues in a fast-paced environment.