Full-Time

Principal Product Designer

UX/UI

Posted on 8/4/2025

Twin Health

Twin Health

501-1,000 employees

Delivers digital twin for metabolic health.

Compensation Overview

$170k - $190k/yr

Remote in USA

Remote

This remote opportunity is available to US based persons. Applicants must be authorized to work for any employer in the U.S.

Category
UI/UX & Design (1)
Required Skills
LLM
Interaction Design
Agile
UI/UX Design
Machine Learning
Information Architecture
Product Design
Requirements
  • 10+ years of UX/product design experience, with minimum 3-5 years designing user interfaces for healthcare or related products.
  • Bachelor’s degree in design, user experience, HCI, or a related field.
  • Must have experience working with consumer-facing mobile experiences. Collaborating with clinical teams and workflows strongly preferred.
  • Experience designing AI/ML and LLM augmented experiences strongly preferred. LLM prompting experience is a plus.
  • Strong advocate for delivering only the highest quality experience to users, but comfortable working in an agile and iterative way.
  • Strong verbal, written, and visual communication skills, as well as a portfolio that demonstrates both UX and visual design for enterprise and consumer products.
  • Experience leading cross-functional workshops to ideate and align teams and leadership around a product experience vision.
  • Experience designing and executing through launch, full mobile app redesigns or large scale mobile product experiences.
  • Expertise in design systems, information architecture, design patterns, and interaction design. Experience owning end to end aspects of the experience including ensuring that copy is refined, visual and interaction design is high quality, and products are validated via user testing and iteration.
  • Ability to communicate clearly with developers and understand the capabilities and constraints of native mobile design.
  • Great eye and passion for visual design, and demonstration of well-considered interactive design. Experience leading other designers to align around a common design language and strategy.
Responsibilities
  • Collaborate closely with other designers, content writers, marketing, product managers, and engineers to create delightful, effective, and user-validated experiences across mobile and web.
  • Lead cross-functional partners to develop concepts of varying complexing and generate new ideas and feature direction working directly with internal users.
  • Create user journey maps, wireframes, prototypes, high-fidelity designs, and specs that document key use cases and user stories, working with teams to determine the most effective and efficient implementation approaches and own the delivery of high quality experiences at all stages.
  • Design refined, intuitive, and effective user experience strategies that leverage modern design techniques, while taking advantage of developments in AI/ML to streamline complex workflows and consider cross-product member journeys.
  • Define and sell your design rationale and concepts. Conduct user research to gain insights into unmet needs, pain points, and behaviors. Use these insights to inform design decisions and improve user experiences. Align design strategies with larger business and product milestones in ways that contribute to business growth.
  • Help to define and mature a design system and advocate for its application across different products.
  • Drive a user-first mindset in everything you do, advocating and contributing to the ongoing discovery of user needs while balancing business and technical goals.
  • Additional duties as assigned.
Desired Qualifications
  • Experience designing AI/ML and LLM augmented experiences strongly preferred.
  • LLM prompting experience is a plus.

Twin Health uses a Whole Body Digital Twin to monitor metabolism and guide personalized treatment for chronic metabolic diseases like diabetes. The platform gathers data from sensors, builds a real-time virtual model of a person’s metabolism, and uses AI to suggest individualized care, with ongoing coaching and updates. It differentiates itself by targeting the root metabolic dysfunction with a continuous, data-driven twin and by forming partnerships with healthcare providers and payers for integrated care. The goal is to reverse and prevent metabolic diseases by restoring healthy metabolism through scalable, subscription-based care.

Company Size

501-1,000

Company Stage

Series E

Total Funding

$286.5M

Headquarters

Mountain View, California

Founded

2018

Simplify Jobs

Simplify's Take

What believers are saying

  • Series E funding of $53M at $950M valuation enables scaling across employers and health plans.
  • Peloton partnership integrates personalized fitness content, expanding member engagement and retention.
  • Healthy Weight program addresses obesity without GLP-1 medications, capturing growing weight loss market.

What critics are saying

  • One Health's single blood test delivers equivalent metabolic insights at lower cost and friction.
  • Levels Health and Nutrisense CGM programs commoditize digital twin IP with cheaper subscription alternatives.
  • OpenAI consumer metabolic AI model enables free apps replicating Twin Health recommendations, collapsing revenue.

What makes Twin Health unique

  • 90%+ Type 2 Diabetes reversal with A1C below 6.5% versus industry benchmark of 8.0%.
  • Whole Body Digital Twin integrates wearable sensors, ML, and clinical coaching for personalized metabolic interventions.
  • Delivers $8K+ annualized savings per member through medication deprescribing and reduced medical utilization.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

401(k) Retirement Plan

Unlimited Paid Time Off

Parental Leave

Health Savings Account/Flexible Spending Account

Company Equity

Remote Work Options

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

1%

1 year growth

1%

2 year growth

0%
Athletech News
Oct 14th, 2025
Peloton's Newest Tech Bet: AI Digital Twins

Peloton's newest tech bet: AI Digital twins. Utilizing its digital twin technology, Twin Health will incorporate Peloton's content library to recommend personalized workouts to members based on their unique profiles. A new partnership between Peloton and Twin Health is uniting the breakthrough technology of digital twins and fitness. The healthtech company will now integrate the fitness brand's content to integrate Peloton's library of live and on-demand classes with Twin Health's hyper-personalized AI digital twin care plan, the latest innovation in personalized wellness. Here's how that digital twin works: Twin Health's technology creates a real-time model of your unique metabolism, drawing upon data from smart devices, lab results and meal logs. That model then provides personalized guidance on nutrition, movement, sleep and more, with the support of a clinical team. With the help of Peloton, the AI digital twin will recommend specific workouts or content based on a member's personalized metabolic health goals. That could look like low-impact cardio for a member focused on heart health, yoga for stress management or meditation to boost sleep quality. The partnership arrives soon after a study published in the New England Journal of Medicine Catalyst found Twin Health's AI Digital Twin to be an effective treatment for diabetes and weight loss without medications. Twin members will receive a Peloton App One membership at no additional cost, with the option to add a reduced-cost Peloton Bike+ rental or a Peloton All-Access membership. "At Peloton, we have long held that movement is medicine. Our interest in improving people's health outcomes is about putting that belief into action at scale, which we can accomplish with Twin Health," said senior vice president and general manager of Peloton for Business, Greg Hybl. "Together, we are pairing connected fitness and wellness with clinical care to unlock life-changing health outcomes for more people than ever before."

FinSMEs
Aug 22nd, 2025
Twin Health Raises $53M in Series E Funding Round

Twin Health raises $53M in Series E funding round.

Fortune
Aug 21st, 2025
Twin Health raises $53M Series E

Twin Health, a metabolic health startup, raised $53 million in a Series E funding round, reaching a valuation of over $950 million. The round was led by Maj Invest, with participation from Iconiq and Temasek. Twin Health's digital twin technology, which helps manage diabetes and other metabolic disorders, has shown promising results, with 71% of study participants lowering their A1C levels and often stopping medication. The company aims to scale commercially across more employers and health plans.

Yahoo Finance
Aug 21st, 2025
Exclusive: Twin Health, metabolic health startup, raises $53 million Series E at $950 million valuation

Twin Health raised a $53 million Series E led by Maj Invest of Denmark, Fortune has exclusively learned.

Sabko Milegi
Nov 11th, 2024
Join Twin Health as a Salesforce Developer - India

Join Twin Health as a Salesforce Developer - India.

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