Senior UI Software Engineer (On Site) at The Timberline Group

Our client is engineering a next-generation Work Orchestration platformone that transforms complex organizational processes into clear intuitive action-driven experiences. TheirUI and UX are central to that mission. They develop theirfront end using WiseJ enabling engineers to build rich enterprise interfaces entirely in C# and .NETwith strongly typed code centralized controls and without the typical bloat of sprawling JavaScript frameworks and constantly shifting third-party libraries. Theirengineering team is supported by a world-class fully-managed Figma Design System including design tokens responsive variants and component-compliant wireframes and prototypes. This gives engineers a complete consistent UI blueprintfreeing them to focus on architecture performance and behavior rather than recreating UI patterns from scratch. If you want to build beautifully engineered large-scale UI systems in an environment designed for clarity and craftsmanship.Position Overview: We are seeking a Senior UI Software Engineer to lead development of a an enterprise-grade interface. You will architect highly interactive intelligent User Interfaces using a and WiseJ stack while collaborating closely with product and design to deliver a first-class user experience.Key Responsibilities Architect and implement high-performance user interfaces using WiseJ C# with a strongly typed and unified codebase. Translate Figma design system components wireframes and prototypes directly into consistent pixel-aligned engineering implementations. Develop adaptive layouts multi-panel interfaces drag-and-drop tools and other advanced interaction patterns for enterprise-scale use cases. Maintain clean composable reusable UI architecture that avoids unnecessary libraries and minimizes complexity. Collaborate with UX product and backend engineering to ensure seamless integration across all system layers. Contribute to UI standards internal tooling code quality and mentorship of other engineers. Team management experience.Qualifications Required Bachelors in Computer Science Engineering or related field. 610 years of UI engineering experience with complex data-heavy or enterprise platforms. Strong proficiency in C# .NET Visual Studio and object-oriented UI development. Experience designing and shipping real-time component-driven UI systems. Deep understanding of UI architecture state management and interaction modeling.Preferred (Not Required) Experience with WiseJ or other server-managed UI frameworks. Experience working with structured Figma design systems including tokens variants and engineering-aligned prototypes. Background building reusable UI component libraries and internal platform frameworks. Familiarity with distributed systems real-time data and workflow automation tools.Why this job Competitive salary and benefits Collaborative high-talent on-site engineering culture in Boulder CO A unified strongly typed UI stackno fractured front-end layers Direct influence over a platform designed for massive scale A culture that values clarity simplicity craftsmanship and deep work How to Competitive salary and benefits. A flexible and dynamic work environment. Opportunities for professional growth and development. A culture that values work-life balance. The chance to be part of a transformative enterprise solution.The Timberline GroupPhone: PO Box 385LebanonMO65536Delivering quality solutions through quality peopleRequired Experience:Senior IC Key Skills Front End,CSS,Balsamiq,HTML,JavaScript,Web Design,Adobe Photoshop,Jasmine,Adobe Illustrator,CorelDraw,Selenium,Computer Engineering,Sketch,Troubleshooting Employment Type : Full Time Experience: years Vacancy: 1