Top C++ Jobs in Seattle, WA

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 Backend Engineer, you'll improve Git and Gitaly by contributing features, bug fixes, and performance improvements, collaborating with the open source community, and participating in architectural discussions.

Design, build, deploy, and operate C++ gRPC backend services for a CAD/CAM web product. Integrate CAM/CAD libraries, apply DevOps/SRE practices (CI/CD, observability, IaC), set engineering standards, mentor teammates, and ship fast in an early-stage environment.

Develop and maintain C#/.NET (or Java) applications, write SQL, and work with telemetry and big-data tools (Hadoop, Pig, Hive). Leverage Microsoft technologies to deliver enterprise IT solutions.

Lead C++ developer to port a large compiler/interpreter codebase from x86 to x64, integrate with Office products, review and refactor code, implement high-quality unit-tested fixes, collaborate with US/India teams, and drive technical solutions and tooling improvements.

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.

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.

Seeking an experienced AngularJS and C# developer to create a data dashboarding site with reusable MVC code and templating frameworks.

The role involves developing a data dashboarding site using AngularJS, D3, and C#, focusing on creating reusable client-side MVC code with templating frameworks.

As a Software Engineer for Starlink, you will develop and support real-time software for satellites and gateways, enhancing broadband access globally.

Develop and maintain C# applications using ASP.NET and Blazor, build and integrate REST APIs, design Azure Storage solutions, collaborate with offshore teams, apply AI concepts, and continuously learn new technologies. Coordinate development activities and ensure effective communication across teams.

Looking for an SQL and C# developer with 6 years of software development experience, proficient in T SQL programming and development, and strong in C#.

The role involves software development with a focus on T SQL programming and development using SQL Server and C#.

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.

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

The role involves developing Power BI reports, dashboards, and visualizations, working with T-SQL and SSAS, and requires extensive experience in C# and ASP.Net.

Design, implement, and operate core networking software for a large-scale GPU datacenter fabric. Develop routing and traffic-engineering algorithms, real-time switch software, prototypes and experiments, deployment and CI tooling, monitoring, and testing to maximize performance and reliability of AI training infrastructure.

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.

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.

The C# ETL Azure Developer will work in agile environments to develop high-performance C# libraries for Azure Data Factory, ensuring strong standards, scalability, and troubleshooting capabilities. Candidates should have strong SQL and object-oriented design skills, as well as experience with Azure cloud development.

As a Senior Software Engineer - C++ GPU Performance, you will optimize GPU algorithms, monitor performance metrics, and influence design decisions for self-driving technology.

The role involves optimizing GPU-based algorithms, developing benchmarking frameworks, analyzing performance metrics, and facilitating efficient code development for autonomous vehicle systems.

As a Senior Software Engineer, you will design, build, and maintain scalable distributed systems, engage in cross-functional collaboration, mentor engineers, and improve processes throughout the software lifecycle.

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