Principal, Application Development - UI/UX Designer

L3Harris Technologies•Melbourne, FL

18h•$133,000 - $284,000•Remote

About The Position

L3Harris is seeking a Principal UI/UX Designer to lead UX strategy and design for Palantir Foundry projects, creating intuitive, scalable, user-centered experiences for data-driven applications and workflows. The role serves as a recognized UI/UX subject matter expert and advisor across the digital ecosystem, partnering with business stakeholders, solution architects, developers, data engineers, and program teams to translate complex user needs and operational processes into designs that improve usability, adoption, and business outcomes. It will help establish reusable patterns, influence standards, and shape consistent interaction models across strategically important solutions. The ideal candidate has experience designing enterprise applications and data-centric user experiences in complex environments. They should be able to understand user needs, business processes, and technical constraints and create designs that balance usability, consistency, and platform capabilities. Experience with Palantir Foundry is highly desired. The position is based in Melbourne, Florida, with a remote opportunity, and follows a 9/80 schedule: 80 hours over nine workdays in each 14-day period, with every other Friday off. Approximately 10–20% travel is required, potentially more during implementation activity, stakeholder workshops, onsite user research, or enterprise deployments.

Requirements

Bachelor’s degree in UX Design, Human-Computer Interaction, Interaction Design, Graphic Design, Computer Science, Information Systems, Psychology, or a related field and at least 12 years of related experience; or a graduate degree and at least 10 years of related experience; or, in lieu of a degree, at least 16 years of related experience.

Nice To Haves

Extensive experience leading UX for complex enterprise applications, internal tools, dashboards, workflows, or other sophisticated digital products.
Experience serving as a senior or expert UX practitioner on large, complex, or strategically important initiatives.
Experience translating complex user needs, business requirements, and operational workflows into scalable design strategies and production-ready solutions.
Experience influencing shared design standards, reusable patterns, design systems, or UX governance across multiple teams or applications.
Ability to influence cross-functional stakeholders and senior leaders across business and technical domains.
Strong knowledge of interaction design, information architecture, accessibility, usability, and enterprise UX best practices.
Experience conducting and applying user research, usability testing, and feedback analysis to inform design decisions.
Proficiency with modern design and prototyping tools such as Figma or similar platforms.
Strong communication, facilitation, documentation, and presentation skills.
Ability to work independently, manage multiple complex priorities, and deliver high-quality results with broad organizational impact.
Experience with Palantir Foundry.
Experience designing data-intensive applications, dashboards, analytics workflows, or decision-support tools.
Experience contributing to enterprise design systems or shared UX standards across multiple applications or organizations.
Experience working in Agile or other iterative delivery environments.
Familiarity with front-end development concepts, technical constraints, and design handoff best practices.
Experience using analytics, user feedback, or adoption metrics to inform UX strategy and design improvements.

Responsibilities

Lead UX strategy and design execution for Palantir Foundry initiatives, including discovery, workflow analysis, wireframing, prototyping, usability evaluation, and experience optimization.
Partner with stakeholders, architects, engineers, and program teams to translate business and operational needs into effective user experiences.
Influence cross-functional teams and senior stakeholders to adopt strong UX practices, shared standards, and user-centered methods.
Define and champion reusable patterns, interaction models, and design approaches that improve consistency, usability, and scalability across applications.
Analyze workflows, interfaces, and user journeys to identify pain points and recommend improvements with measurable impact.
Design interfaces that simplify complex data, decisions, and processes so users can work more efficiently and effectively.
Create user flows, journey maps, wireframes, mockups, prototypes, and design specifications to support development and implementation.
Conduct and apply user research, usability testing, and feedback analysis to validate designs and improve adoption.
Collaborate with development teams to ensure design intent is implemented effectively and in alignment with enterprise standards.
Present design strategies, concepts, and recommendations to stakeholders, senior leaders, and customers.
Guide and mentor team members and partners on UX methods, standards, accessibility, and best practices.
Travel approximately 10–20%, with possible increases based on implementation activity, stakeholder workshops, onsite user research, or enterprise deployments.