Preffect is hiring: Mobile App UI Designer in San Francisco

Note: Applications without a portfolio will be automatically rejected.

About the Role

As the Mobile App UI Designer at Preffect, you'll drive mobile interface designs in Figma for our innovative Health & Wellness app.

As an individual contributor (IC), you’ll take over our established Figma design system and foundational visual assets, ensuring consistency and enhancing user experience across mobile platforms and other digital customer touchpoints.

Responsibilities

• Take ownership of and refine existing mobile app screens in Figma, from iterative enhancements to polished final assets.
• Maintain and evolve our established design system and other visual assets.
• Proactively improve app usability, flow, and visual coherence.
• Collaborate closely with Product and Engineering to ensure a coherent user-centric approach from design to deploy.
• Refine and crystallize Preffect’s end-to-end visual identity across all customer touchpoints, including mobile app, social media, website, email, app store.
• Create engaging social media content, marketing material, landing pages, and other brand media.
• Ensure brand consistency and quality across all customer-facing touchpoints.
• Drive strategic creative direction to enhance brand storytelling and market positioning.

Minimum Qualifications

10 years of experience in mobile UI/UX design, visual design, or a hybrid design role.

Demonstrated experience conducting UX research to inform UI designs for mobile.

Expert-level proficiency in Figma, including design systems, auto layout, and prototyping.

Ability to cross-functionally drive creative projects from concept through execution.

Lifelong growth mindset, with a penchant for thriving at the cutting edge, including use of AI-assisted tools as a force multiplier.

Preferred Qualifications

Experience in early-stage startups, consumer apps, or Health & Wellness.

Proven experience designing brand or marketing assets (social media, web, email campaigns).

Comfortable working on copywriting or close collaboration with content creators.

Familiarity with web design and digital marketing tools.

Compensation & Location

• Salary: $155-170K annually plus equity, based on experience.
• Benefits: Health insurance with dental and vision, HSA / FSA, life insurance, 401(k).
• Location: Initially remote, but candidates must be based in the SF Bay Area for in-person collaboration as needed.

Why Join Prefect

• Opportunity to shape both product experience and brand identity from early stages.
• Work closely with an ambitious, mission-driven team leveraging cutting-edge AI and innovative product experiences to fundamentally transform Consumer Health & Wellness.
• High autonomy, creative freedom, and meaningful impact on everyday users, at unprecedented scale.