***W2 only*** Position: Senior Software Developer (.NET) Work Authorization: US citizens and Greencard holders only Location: 100% Remote JOB DESCRIPTION: • As a Sr. Software Developer you will be responsible for the analysis, design, development, implementation, and support of high-performance, highly scalable .NET scientific simulation platforms using leading agile development practices. • This is a hands-on role that works both independently and collaboratively in a team environment. • You must be a self-starter, delivery-focused, and possess a broad set of technology skills to take this complex modeling platform to the next level of usability, performance, automation, and scalability. RESPONSIBILITIES: • Redeveloping our WPF UI into a new modern experience, using web technologies based on industry standards with a proven track record. • Developing new customer online experiences in user portals, online distribution/delivery, licensing, help, news/announcements, etc. • Supporting our path to Azure (and other cloud providers). • Support our transition from .NET Framework to .NET Core. • Enhancing our external and internal telemetry, online reports, and dashboards. • Work directly with actuaries, experts in reinsurance, and capital modeling to develop user interfaces and APIs for advanced modeling analyses. • Work with embedded QA and domain experts to design, implement, test, and support software products, tools, and applications. • Meet with product users to understand their goals and the domain. Use their feedback to further improve the user experience of the modeling software. • Develop high-performance applications, features, and functionality in C# / .NET using the latest standards and technologies. QUALIFICATIONS: • 10+ years software development experience. • Expert working knowledge of C# (7.3 9.0), .NET Framework/Core, and Visual Studio. • Has a deep understanding of threading, LINQ, async/tasks, pattern matching, and pinvoke interoperability. • Has the ability to architect complex code solutions that are understandable, maintainable, flexible, and expandable. • Has experience with using Azure and related C# Azure packages. • Have a proven ability to extract goals, ideas, and approaches from domain experts and translate them into requirements, code, UI, and applications. • Experience with Protobuf and gRPC technologies. • Knowledgeable of WPF/XAML and/or WinForms or Web UI frameworks. • Experience Electron, Angular, Web Assembly, HTML, CSS, Typescript, JavaScript, jQuery, etc. • Experience with interactive charting and graphing packages for the visual display of quantitative information. • Understanding of SQL technologies and languages • Has experience with Python, Kubernetes, C++, C++/CLI, and/or strong math background. • Has excellent verbal and written communication skills. Demonstrates self-motivation, resourcefulness, and independent action. • Experience working directly with users on an agile development team. • Proven record of shipping commercial software and/or online experiences. • Can work remotely and in-person. Must be able to travel (at least 4 times a year if not in Seattle).