Kairos
Back to gigs

Senior Product Designer (Mobile App / Health & Wellness) - Remote

Remote

Audio Cardio · US / CA

Fresh
Gig
Braintrust

Compensation

$100-$120/hr

Apply on Braintrust

Description

*Open to candidates in LATAM, US, Canada, Europe*

We’re looking for a Senior Product Designer to help modernize and elevate the experience of a

hearing health mobile application built in Flutter. This project will focus on transforming the app

from a simple “timer-based” experience into a more engaging and supportive hearing health

platform that users genuinely enjoy interacting with.

The ideal candidate has strong mobile product design experience, a polished portfolio, and a

thoughtful approach to designing wellness-focused consumer experiences that feel

approachable, calming, and user-friendly.

We’re looking for someone who can help evolve the visual design system and overall UX using

Google’s Material 3 design principles within a Flutter-based application.


What You’ll Work On

● Redesign and modernize core areas of the mobile app experience

● Incorporate and elevate Google Material 3 design components within Flutter

● Help shape a more holistic hearing health platform experience

● Improve overall UX, engagement, retention, and product adoption

● Collaborate closely with product and development teams

● Create intuitive, calming, and accessible interfaces for users navigating hearing and

mental wellness challenges

● Refine visual systems, interaction patterns, and mobile user flows

● Provide strategic design recommendations and rapid iterations

Ideal Background


● 5+ years of experience in product or mobile app design

● Strong portfolio showcasing modern consumer mobile applications

● Experience designing for health, wellness, mental health, meditation, sleep, or lifestyle

products is highly preferred

● Experience working closely with product managers and engineering teams

● Experience with Google Material 3 and/or Flutter-based products is a major plus

● Demonstrated success improving user engagement, retention, or conversion metrics

through design

● Ability to balance functional/scientific concepts with approachable and emotionally

supportive UX


Tools & Skills

● Figma

● Mobile-first UX/UI design

● Design systems

● User flows and prototyping

● Material Design 3

● Flutter collaboration experience preferred


Contract Details

● Part-time, project-based contract

● Estimated duration: 1–2 months

● Target start date: June 2026

● Some overlap with PST working hours preferred

Interview Process

● 2 interview stages

● Portfolio review will be a major component of the evaluation process

What Success Looks Like

You’ll help transform the product into a more premium, supportive, and engaging hearing health

experience that users trust and feel comfortable returning to consistently.

#LI-Remote
Contract
Short
Engagement
Freelance
Posted
Jun 1, 2026
Slots remaining
1
First seen
Jun 30, 2026
Last seen
Jun 30, 2026