Senior Designer (Principle Prototyping)

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Overview

Instrument is a digitally native design and technology company built to help brands unlock their full potential. Since 2005, our team of makers, thinkers,

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OtherDesigner

Instrument is a digitally native design and technology company built to help brands unlock their full potential. Since 2005, our team of makers, thinkers, and storytellers has partnered with leading brands like Google, Nike, Uber, ŌURA, and Eventbrite to craft digital experiences that create impact and drive results.

Unlike traditional agencies, we don’t just design—we build. Our work lives at the intersection of taste and technology, powered by curiosity, thoughtful curation, and a commitment to delivering the most fitting solution for every brief. We bring this to life across three core offerings: Brand, Marketing, and Product.

As a member of our freelance network, you’ll collaborate with our teams to bring bold ideas to life—whether launching new brands, building digital products, or shaping experiences that move people. We welcome collaborators from all backgrounds and experiences who share our curiosity, creativity, and care for craft.

We believe great work comes from diverse perspectives and shared purpose. If you’re passionate about learning, experimenting, and making work that matters, we’d love to hear from you.

We're looking for a Senior Designer with deep expertise in Principle to help bring a high-profile mobile product prototype to life. You'll partner with an existing design team to transform Figma designs into polished, interactive user journeys with thoughtful motion, transitions, and microinteractions.

This role is ideal for someone who specializes in interaction design and prototyping and has extensive experience using Principle.

Build high-fidelity interactive prototypes in Principle

Translate existing Figma designs into polished user flows

Design and refine motion, transitions, gestures, and microinteractions

Collaborate with the product design team to accurately represent the intended user experience

Iterate quickly based on stakeholder feedback

Extensive experience creating prototypes in Principle (required)

Strong interaction design and motion design skills

Experience building realistic mobile product prototypes

Proficiency with Figma and working from established design files

Ability to work independently while collaborating closely with designers

Experience creating prototypes for consumer mobile applications

Familiarity with Apple Human Interface Guidelines
Experience working on large-scale product design initiatives

The expected contract pay range: $65-96 per hour. Contract compensation is determined by location, experience, and skillset. We have three regional pay ranges that are adjusted for cost of living (US1 +15%, US2 +7.5%, US3 Base), *learn more about our pay philosophy and cost of living adjustments.

Benefits may be available in accordance with applicable law and company policy, including eligibility based on hours worked and duration of assignment.