> Markdown version of [/jobs/ext/3427437-senior-ui-ux-engineer-346k-yr-ts-sci-fs-poly](https://www.wearedevelopers.com/jobs/ext/3427437-senior-ui-ux-engineer-346k-yr-ts-sci-fs-poly). 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).

---

# Senior UI/UX Engineer [$346k/yr+] TS/SCI-FS Poly

- **Company:** SYSTOLIC, INC.
- **Location:** Annapolis Junction, MD, United States
- **Experience:** Expert
- **Salary:** $346,000.0
- **Contract:** Permanent contract
- **Skills:** HTML, JavaScript (Programming Language), Adobe Creative Cloud, Software Applications, Cascading Style Sheets (CSS), Linux, Design of User Interfaces, Human-Computer Interaction, Software Engineering, User-Centered Design, Website Wireframe, Front End Software Development
- **Published:** September 11, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9156241/senior-uiux-engineer-346kyr-tssci-fs-poly

## About the Role

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered.

Summary: * Modernize an existing data tracking and metrics system utilizing user-centered UI/UX design methodologies. * Develop comprehensive user interface specifications, wireframes, and interactive prototypes to validate design concepts. * Perform usability and 508 compliance testing across modern software applications using HTML, CSS, JavaScript, and Linux. Qualifications & Compensation: * Degree: Technical bachelor's degree or equivalent experience * Years of experience: 20+ years * Total Compensation: $346k+ yearly (tentative) Job Description: * Focus on developing highly usable end-user interfaces by applying UI best practices and core UX principles. * Collaborate closely with users and analysts to research, develop, and document user profiles and performance requirements. * Conduct task analysis, workflow mapping, and user scenario testing to drive application design. * Develop UI design specifications, wireframes, mockups, interaction behaviors, and design guidelines. *
Collaborate with product designers and process engineers to ensure user-centered solutions align with workflows and technical requirements. * Perform accessibility and 508 compliance testing to ensure interfaces adhere to regulatory and usability standards. * Gather and evaluate user feedback through surveys and behavioral metrics to inform design enhancements. * Create interactive prototypes to effectively communicate interactions to development teams and stakeholders. * Leverage working knowledge of Linux, CSS, JavaScript, HTML, and Adobe Suite to support frontend design and troubleshoot technical issues.