Top C# Jobs in Los Angeles, CA

Design, develop, and field high-performance Ground Control Station and C2 software using C++/Qt/QML and QGroundControl. Lead architecture and technical direction, mentor engineers, define APIs/ICDs, debug integration/latency issues, support field tests, implement post-mission debrief tools, and ensure interoperability with C2 standards.

As a C# Developer, you will develop a scalable application review tool, automate tasks, collaborate with teams, and ensure optimal system performance.

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

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.

Design and implement high-performance, parallel algorithms in C++ and CUDA to accelerate dataframe and database operations. Contribute to open-source projects (cuDF, Velox, Presto, Spark), profile and optimize code, and collaborate with GPU hardware and software experts to build scalable data-processing libraries.

Develop a quest gameplay engine for game server and mobile apps and build a visual no-code quest editor. Collaborate in one-week Scrum sprints, design software architecture, and use C++/Qt, JavaScript/TypeScript, git, and Linux.

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

Develop and maintain mobile app and no-code quest editor, implement gameplay engine and server, design software architecture, and collaborate in one-week Scrum sprints using C++, Qt, QML, MySQL, and AI-assisted tools.

Design, develop, and test high-fidelity real-time simulation software for SpaceX flight systems. Build core simulation infrastructure and models (fluids, electronics, multi-body physics), prototype designs, improve performance and reliability, and collaborate with engineering teams and users to add features and improve usability.

Design, develop, and test high-fidelity, real-time simulation software for SpaceX flight systems. Build core simulation infrastructure and physics, fluids, and electronics models. Improve performance, reliability, and user features; prototype concepts; collaborate across engineering groups to support Falcon, Dragon, Starlink, and Starship missions.

Design and implement real-time machine control software for 3D metal printing systems while collaborating with multidisciplinary engineering teams to enhance system reliability and performance.

As a Senior Software Engineer, lead the development of real-time machine control systems for 3D metal printing platforms, influencing system performance and reliability. Mentor engineers, define software standards, and drive initiatives for system robustness and scalability.

Develop, verify, and deploy mission-critical flight software/configurations for Dragon crewed and cargo vehicles. Build tools for automated deployment and verification, analyze test results and bugs, troubleshoot flight hardware/software with interdisciplinary teams, plan and execute vehicle testing, support mission operations as flight software specialist, and roll out software changes to the vehicle fleet. Occasional travel required.

Develop, verify, and deploy flight software and configurations for Dragon crewed and cargo vehicles. Build tools for automated deployment and configuration verification, analyze test results and bugs, troubleshoot hardware/software with interdisciplinary teams, support mission operations, plan and execute testing milestones, and roll out software changes to the vehicle fleet.

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.

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

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.

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

The Senior C# Developer will lead AI enablement by transforming APIs into an Agent Mesh using C# and the MCP, ensuring secure AI interactions through Gravitee management.

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.

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.