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Senior Web Developer (Web Systems) - State of Washington

Washington State Department of Enterprise Services
Seattle
Estimated Salary
USD 85.000 – USD 105.000
Live Update
24 September 2026
Deadline
24 Sep 2027

Job Description

Are you a visionary developer looking to build solutions that directly impact the lives of thousands of Washington residents? The Washington State Department of Enterprise Services (DES) is seeking a highly skilled Senior Web Developer to join our dynamic team in Seattle. In this pivotal role, you will design, develop, and maintain enterprise-grade web applications that serve the public sector with efficiency and innovation. If you are passionate about leveraging modern technologies to solve complex problems and are looking for a stable, mission-driven career, we want to hear from you.

At DES, we offer more than just a job; we offer a chance to contribute to the infrastructure of state government. We pride ourselves on a collaborative culture that values transparency, excellence, and continuous improvement. As a Senior Web Developer, you will work in an Agile environment, mentoring junior staff and driving technical excellence across our web systems portfolio.

Responsibilities

  • Design, develop, and maintain complex web applications using Microsoft .NET Core, C#, and modern front-end frameworks.
  • Collaborate with product managers, designers, and stakeholders to translate business requirements into technical specifications.
  • Ensure high performance, accessibility, and responsiveness of web applications across various devices and browsers.
  • Participate in code reviews, architecture planning, and technical decision-making to ensure code quality and scalability.
  • Conduct thorough testing and debugging to identify and resolve issues promptly.
  • Contribute to the modernization of legacy systems and the adoption of cloud-based solutions.

Qualifications

  • Minimum of 5 years of professional software development experience in a web environment.
  • Strong proficiency in C#, .NET Framework, and .NET Core.
  • Experience with front-end technologies such as HTML5, CSS3, JavaScript, and libraries like React, Angular, or Vue.js.
  • Deep understanding of SQL Server, database design, and performance optimization.
  • Experience with Agile/Scrum methodologies and CI/CD pipelines.
  • U.S. Citizenship or permanent residency is required due to system access requirements.
  • Strong analytical and problem-solving skills with the ability to communicate complex technical concepts to non-technical audiences.

Required Skills

.NET C# Web Development SQL Server Agile React JavaScript HTML5 CSS3 System Architecture

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