Top .NET Developer Jobs in Seattle, WA

Develop and optimize customer facing web experiences, manage UX patterns, develop WebAPIs, mentor contributors, requiring 5+ years of web development experience.

Seeking a .NET Developer with 5+ years of experience in C# and SQL to design and maintain applications using Microsoft technologies, focusing on Azure and system development methodologies.

Design and develop web applications using Microsoft Azure, .Net, SQL Azure, and front-end technologies like JavaScript and HTML.

As a Senior Software Engineer, you'll design and build scalable underwriting systems, collaborate with teams, and modernize processes using AI-driven automation.

The role involves developing full stack applications using C#/.NET for backend and React for frontend while managing AWS infrastructure and ensuring code quality.

The Integration Developer supports and maintains Rhapsody and .NET applications, automates workflows, and modernizes legacy systems for public health data exchange.

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

The Senior Backend Engineer will develop backend solutions using .NET/C# and modern architecture, focusing on cloud services and databases, while managing client projects.

The Senior Software Engineer will focus on integrating Sage Intacct with core business processes, developing backend services, and maintaining integration systems. Responsibilities include designing, building, and supporting secure integration solutions, as well as collaborating with stakeholders on technical requirements.

As a Senior Software Engineer at PerfectServe, you'll design, build, and maintain high-quality code for healthcare communication systems, mentoring junior engineers and collaborating across teams to improve patient care and clinical workflows.

Responsible for designing, developing, testing, and maintaining secure Java applications, providing leadership and mentorship, and ensuring compliance with SDLC frameworks.

Seeking a Senior Full Stack .NET Developer to work on a social good project, with strong skills in C#, AngularJS, design, and UX. Requires 5+ years of experience.

Lead design and implementation of scalable .NET Core + Angular applications. Communicate with stakeholders, estimate work, drive agile delivery, ensure code quality, mentor engineers, and collaborate across product, QA, and design to deliver client-facing solutions.

As a Principal .NET Software Engineer at Versapay, you will modernize payments infrastructure, improve scalability, design distributed services, and take ownership of payment workflows while collaborating with various teams to enhance customer experience.

Develop and maintain web and desktop applications using .NET technologies. Requires strong programming skills, experience with databases, and project management.

The Senior .NET Software Engineer will drive development of .NET software products, focusing on back-end engineering, code reviews, and collaborating with cross-functional teams.

The Staff Engineer will leverage 5+ years of experience in C#, JavaScript, and frameworks to lead and innovate solutions in a collaborative environment.