Senior Product Designer (UI Focus)

Kellton

Reston (VA)

Remote

USD 80,000 - 110,000

Part time

14 days+

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Benefits offered by this job

Flexible work hours

Remote work options

Job summary

A leading tech firm is seeking a Senior Product Designer to deliver exceptional UI designs for web and mobile. The ideal candidate will have 3–7 years of experience, a strong background in usability validation, and proficiency in design tools such as Figma and AdobeCC. This contract role emphasizes collaboration within cross-functional teams and a passion for user-centered design. Join us to create impactful design solutions that meet real user needs in an inclusive manner.

Qualifications

3–7 years of experience in product or service design.
Experience designing for complex, content-rich websites and applications.
Proficient in design thinking and human-centered methodologies.

Responsibilities

Deliver high-quality UI designs for web and mobile platforms.
Conduct usability testing to validate design solutions.
Partner closely with cross-functional teams to ensure design alignment.

Skills

UI design excellence

Usability validation

Prototyping

Cross-functional collaboration

Education

Bachelor’s degree in a related field

Tools

Figma

AdobeCC

Miro

Job description

Sr. Technical Recruiter/Sourcing Specialist at Kellton Tech Company

Role: 3999 Senior Product Designer (UI Focus)

Location: 100% Remote

Mode: long term (tech teams extend twice a year: June/Dec)

Screening Questions

Tell us about a project where you inherited an existing design system and were asked to deliver new UI for a complex, content-heavy feature. What constraints did the system create, how did you work within them, and where did you have to push back or propose changes?
Describe a time when your initial UI design looked visually strong, but usability testing or accessibility review revealed significant issues. What specifically changed in your design, and how did those findings influence your final solution?
Walk us through a situation where multiple stakeholders had different opinions about how a product should look or behave. How did you use artifacts, data, or past experience to align the team and arrive at a final UI direction that shipped?

About the Opportunity

As a Senior Product Designer at the Client, you are a highly skilled, thoughtful, and user-centered practitioner with a passion for designing products and experiences that meet real user needs. You bring strong UI design craft, usability rigor, and systems thinking to complex, content-rich products across web and native mobile platforms.

You will work across one or more cross‑functional teams and products, collaborating closely with product managers, engineers, researchers, and other designers to shape, validate, and deliver high‑quality design solutions. You are comfortable working independently on defined problem spaces while actively seeking feedback, alignment, and shared understanding with teammates and design leadership.

This role places a strong emphasis on UI design excellence, usability validation, inclusive design informed by accessibility standards, and working within robust design systems. You bring a structured, detail-oriented approach to your work, maintaining organized files, clear documentation, and consistent design artifacts, while following established team processes and offering thoughtful feedback to improve them.

You are an advocate for users and equitable experiences. As a creative problem solver, you identify patterns across large systems, balance strategic thinking with hands‑on execution, and bring clarity to complex challenges while staying focused on impact.

Product Discovery and Design Strategy

You contribute meaningfully to early-stage discovery and strategic design efforts, partnering with cross-functional teams to explore opportunities and define direction.

Design Sprints & Envisioning. Contribute to design sprints, envisioning sessions, and workshops to explore problem spaces, generate ideas, and align teams around shared outcomes.
Insight-Driven Direction. Synthesize research, usability findings, behavioral data, and operational inputs into clear, insight-driven design directions.
Data-Informed Decisions. Use qualitative and quantitative data to inform, validate, and refine design decisions throughout the product lifecycle.
User Advocacy. Champion human-centered, inclusive design practices grounded in accessibility standards to ensure solutions meet diverse user needs.
Storytelling. Communicate design rationale, insights, and vision clearly through artifacts, narratives, and presentations.

Design Execution, Usability, and Systems

You translate strategy and insights into polished, production-ready design work that scales across platforms.

UI Design Excellence. Deliver high-quality UI designs with strong visual hierarchy, interaction clarity, and attention to detail across web and native mobile experiences.
Extensive experience working within robust web design systems and native mobile design systems (iOS and Android).
Apply system components, patterns, and tokens accurately while identifying gaps and opportunities for improvement.
Usability Testing & Validation. Plan, conduct, and synthesize usability testing to validate flows, components, and interactions and drive iterative design improvements.
Prototyping. Create prototypes at appropriate fidelity to explore, test, and communicate design solutions.
Accessibility & Plain Language. Design and test experiences using inclusive design principles informed by accessibility standards, applying plain language to support clarity and comprehension.
Responsive & Mobile Design. Design for responsive, mobile-first web experiences and native mobile applications.
AI-Assisted Design (Plus). Leverage AI tools to support ideation, prototyping, exploration, and iteration where appropriate, as an accelerator for design workflows not a replacement for user centered design thinking.
Tools. Use tools such as Figma, Figjam, Miro, AdobeCC, Lovable, DScout, User Insight to design, prototype, test, and document work.

Collaboration and Communication

You are a strong cross-functional partner who contributes to effective, well-run delivery teams.

Cross-Functional Collaboration. Partner closely with product managers, engineers, researchers, and stakeholders throughout discovery, design, and delivery.
Structured Work Practices. Maintain organized, well-documented design files and artifacts to support efficient collaboration and continuity.
Process Adherence & Feedback. Follow established team workflows and design processes while providing constructive feedback to improve how the team works.
Ceremonies & Reviews. Participate in standups, sprint planning, design reviews, critiques, and QA cycles.
Design Specifications. Translate design decisions into clear, implementation-ready specifications and annotations.
Presenting. Communicate ideas, research insights, and design solutions with clarity and confidence in both synchronous and asynchronous settings.

About You

You have:

A portfolio of your work included in your application.
A Bachelor’s degree in a related field (interaction design, HCI, industrial design, information science, social sciences, computer science, graphic design, etc.) and/or equivalent years of work experience.
3–7 years of experience in product or service design.
A strong product design mindset with experience designing for complex, content-rich websites and applications.
Excellent skills in creating and communicating design artifacts, including user flows, wireframes, prototypes, and high-fidelity UI designs.
Proficiency in design thinking and human-centered methodologies, with the ability to translate insights into actionable design direction.
Extensive experience working within design systems for both web and native mobile platforms (required).
Experience planning and conducting usability testing and incorporating findings into design decisions.
A strong understanding of responsive design, inclusive design principles, and accessibility standards.
Comfort collaborating with engineers and discussing technical constraints (experience with front-end technologies is a plus).
Clear, effective communication skills and a collaborative, user‑advocacy mindset.
Curiosity and adaptability, with interest in emerging tools and trends, including AI supported design workflows.