> Markdown version of [/jobs/ext/2851248-ui-ux-developer](https://www.wearedevelopers.com/jobs/ext/2851248-ui-ux-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # UI/UX Developer - **Company:** Seneca Resources - **Location:** Washington, DC, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** .NET Framework, Applications Architecture, Design of User Interfaces, Human-Computer Interaction, Web Applications, Information Technology - **Published:** September 11, 2026 - **Apply:** https://senecahq.com/wp-content/plugins/bullhorn-oscp/#/jobs/2398 ## About the Role * 4-year degree in Computer Science or related discipline * Minimum of 6 years of progressive experience designing and developing web application UI using template-based design * Minimum of 3 years of experience designing and developing Rich Internet Applications (RIA) using frameworks such as Sencha, Ext.js * Strong experience working in the .Net technology stack * Excellent verbal communication skills, as well as strong problem solving abilities and an aptitude for learning new technologies * Self-motivated, with a strong sense of accountability ## Description * Experienced User Interface (UI) developer to lead the design and development of the user interface for an integrated data-heavy .Net web application to support the client's internal business processes. * Develop a scalable, data driver, template-based design for the application UI * Ensure UI design is consistent with and integrates with overall application architecture * Implement appropriate UI framework(s) to ensure page security, performance and scalability * Ensure design and development result in 508-compliant products * Communicate effectively with management, colleagues, and partners ## Related Videos - [This Is Not Your Father's .NET](https://www.wearedevelopers.com/videos/967-this-is-not-your-father-s-net) - [Generate AI in the Browser with Chrome AI - Raymond Camden](https://www.wearedevelopers.com/videos/1770-generate-ai-in-the-browser-with-chrome-ai-raymond-camden) - [Enabling intelligent logistics automation: home-grown Industrial IoT platform at Austrian Post](https://www.wearedevelopers.com/videos/2018-enabling-intelligent-logistics-automation-home-grown-industrial-iot-platform-at-austrian-post) - [UX is a fullstack job!](https://www.wearedevelopers.com/videos/1020-ux-is-a-fullstack-job) - [It's not easy being green](https://www.wearedevelopers.com/videos/558-it-s-not-easy-being-green) - [WebXR: Enabling Virtual and Augmented Reality on the Web](https://www.wearedevelopers.com/videos/965-webxr-enabling-virtual-and-augmented-reality-on-the-web) ## Related Articles - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [What is a web developer?](https://www.wearedevelopers.com/magazine/18-what-is-a-web-developer) - [Top 7 CSS Frameworks in 2025](https://www.wearedevelopers.com/magazine/362-top-7-css-frameworks-in-2025) - [Dev Digest 133 - Back to Front](https://www.wearedevelopers.com/magazine/474-dev-digest-133-back-to-front) - [The Best 7 Frontend Frameworks for Developers in 2025](https://www.wearedevelopers.com/magazine/400-the-best-7-frontend-frameworks-for-developers-in-2025) - [How Developers Can Focus on Maintaining Satisfaction With Accessibility](https://www.wearedevelopers.com/magazine/109-how-developers-can-focus-on-maintaining-satisfaction-with-accessibility)