Senior Principal UX Engineer

Clarity Innovations, Inc.

. Own user experience and interface design inside an Extreme Programming product team .

Posted 10/20/2026full-timeRemote • United StatesSenior💰 $93,000 - $255,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in user experience and interface design, with a strong focus on conducting user research, synthesizing findings into actionable insights, and validating designs in high-stakes operational contexts. Proficient in using modern design tools and methodologies to create effective, accessible, and user-centered products.

Highest-signal resume keywords

5+ Years UI/UX Design ExperienceUser Research and Usability TestingProficiency in FigmaStrong Interaction Design SkillsExperience with AI Tools for Prototyping

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

User InterviewsContextual InquiryUsability TestingInformation ArchitectureVisual DesignHTMLCSSReactTypeScriptPrototyping

Soft Skills

Clear CommunicationPersuasive Presentation

Tools & Technologies

FigmaAI ToolsDesign SystemsComponent Libraries

Certifications & Qualifications

Formal Training in HCIActive Security Clearance

Industry Keywords

Department of WarHigh-Stakes ContextsLean UXDesign StudiosResearch Operations

Tech Stack

Tools & technologies

ReactTypeScript

About the role

Key responsibilities & impact

Own user experience and interface design inside an Extreme Programming product team
Conduct continuous user research through interviews, contextual inquiry, field observation and usability testing
Maintain recurring access to users and customer stakeholders
Synthesize findings into personas, journey maps, jobs-to-be-done and opportunity areas
Turn research into testable hypotheses and user stories with UX acceptance criteria
Validate designs before and after release and track usability measures such as task success, time on task and SUS
Involve engineers in research sessions and maintain a searchable research repository
Use AI tools to synthesize research, draft plans and scripts, explore design variations and generate prototypes
Design for Department of War mission contexts and high-stakes operational workflows
Own end-to-end UX for product areas, including flows, information architecture, interaction design and visual UI
Participate in planning, stand-ups and retrospectives and pair with engineers daily
Break design work into thin, shippable slices for each iteration
Prototype from low to high fidelity
Build and maintain a shared design system and component library with engineering
Champion WCAG 2.1 AA or later and Section 508 accessibility
Set the research agenda and UX standards for product areas
Coach engineers and junior designers on research and usability practices

Requirements

What you’ll need

5+ years of professional UI/UX or product design experience
Portfolio including research case studies showing how findings changed product direction
Hands-on experience planning, conducting and synthesizing generative and evaluative research
Experience with user interviews, contextual inquiry, usability testing and surveys
Ability to recruit participants and sustain a regular research cadence
Experience designing enterprise, analytics or data-intensive applications
Practical experience using AI tools for research synthesis, ideation and prototyping
Understanding of Department of War use cases and design principles for high-stakes contexts
At least 2 years embedded as a designer on an XP team or closely equivalent agile practice
Ability to deliver design incrementally and adjust based on feedback from working software
Strong interaction design, information architecture and visual design skills
Fluency in a modern design and prototyping tool such as Figma
Working knowledge of HTML, CSS and component-based front-end frameworks
Clear communication and ability to present research findings persuasively
Preferred: formal training or degree in HCI, human factors, cognitive psychology, anthropology or related field
Preferred: experience with hard-to-reach users or restricted environments
Preferred: quantitative methods including product analytics, survey design and A/B testing
Preferred: research operations, participant panels, consent processes and research repositories
Preferred: creating or scaling multi-product design systems
Preferred: Lean UX, design studios or story mapping
Preferred: front-end coding with React, TypeScript or CSS
Preferred: AI-assisted or LLM-powered interface design
Preferred: direct Department of War program experience
Preferred: active security clearance or eligibility to obtain one

Benefits

Comp & perks

Performance-based bonuses
Extensive medical coverage
Dental coverage
Vision coverage
401(k) plan with company match
Substantial paid time off
Paid holidays
Flexible work arrangements where possible
Income protection benefits
Professional growth resources