UX/UI Designer, Mobile

📍 Job Overview

Job Title: UX/UI Designer, Mobile

Company: Therabody

Location: London, United Kingdom

Job Type: Contract (Freelance)

Category: UX/UI Design, Mobile App Development

Date Posted: 2026-06-25

Experience Level: Mid-Senior Level (5+ years)

Remote Status: On-site (with potential for hybrid flexibility within London)

🚀 Role Summary

• Design and conceptualize intuitive, engaging mobile app experiences, bridging physical and digital products for the Therabody consumer app.

• Create key UX deliverables including user flows, wireframes, interactive prototypes, and high-fidelity UI designs, meticulously optimized for both iOS and Android platforms.

• Collaborate closely with product managers, engineers, data scientists, and brand teams to translate user insights and product requirements into functional, visually consistent app features.

• Drive user engagement and retention by designing features such as onboarding, device pairing, guided routines, progress tracking, and personalization.

• Utilize and contribute to Therabody’s mobile design system and brand guidelines, ensuring a cohesive and high-quality user experience across all app touchpoints.

📝 Enhancement Note: While the listing specifies "On-site" for London, given the freelance nature and the industry, there's a strong possibility for hybrid work arrangements or flexibility for exceptional candidates. This role is not strictly a Revenue Operations, Sales Operations, or GTM role, but it interfaces with product and data teams that support GTM strategies through user engagement and retention within the app. The emphasis on "execution-focused" and "shipping app experiences" suggests a practical, hands-on approach common in operations-adjacent product roles.

📈 Primary Responsibilities

• Conceptualize and design end-to-end mobile app experiences across various features including onboarding, device pairing, guided routines, progress tracking, and personalization.

• Produce essential UX deliverables such as user flows, wireframes, interactive prototypes, and high-fidelity UI designs, ensuring optimization for both iOS and Android operating systems.

• Translate complex product requirements and user insights into clean, functional, and user-centric designs that adhere to mobile UX best practices.

• Partner with product and data teams to analyze user behavior, identify pain points, and design data-informed improvements to enhance user engagement and retention metrics.

• Maintain and contribute to Therabody’s established brand guidelines and mobile design system to ensure visual consistency and a unified app experience.

• Collaborate effectively with mobile engineers during the design handoff process, ensuring clean asset delivery and providing clear specifications, while also performing QA on implemented designs to catch platform-specific nuances.

• Develop and deliver design variants for A/B testing and experimentation, with the explicit goal of improving key app performance indicators and user engagement.

• Actively participate in user research initiatives, usability testing sessions, and journey mapping exercises to validate design concepts and inform iterative improvements based on user feedback.

📝 Enhancement Note: The responsibilities highlight a strong focus on the entire design lifecycle, from ideation to implementation and iteration. The emphasis on "driving engagement and retention goals" and "improving key app metrics" indicates a data-driven approach to design, which is highly valued in operations-focused roles.

🎓 Skills & Qualifications

Education: While no specific degree is explicitly required, a strong portfolio demonstrating equivalent practical experience is paramount.

Experience: 5+ years of dedicated UX/UI design experience with a proven track record in native mobile applications (iOS and/or Android).

Required Skills:

• Proven expertise in UX/UI design for native mobile applications (iOS and Android).

• Comprehensive portfolio showcasing well-executed mobile app work, including onboarding flows, feature design, navigation patterns, and core app experiences.

• High proficiency in Figma, with demonstrated experience working within established design systems and component libraries.

• Strong understanding of iOS Human Interface Guidelines and Android Material Design principles.

• Experience with user research methodologies and conducting usability testing, including rapid validation techniques.

• Familiarity with mobile-specific interaction patterns, gesture-based navigation, accessibility standards, and performance constraints.

• Collaborative and adaptable working style, with the ability to receive and integrate feedback effectively.

• Excellent communication skills, capable of articulating design rationale and trade-offs to stakeholders. Preferred Skills:

• Experience designing for connected hardware ecosystems, including Bluetooth pairing and real-time data visualization.

• Background in health and wellness applications or connected device platforms.

• Hands-on experience with AI-powered design tools (e.g., Figma AI, Galileo, Relume, or similar) to enhance concepting and iteration speed.

• Experience with journey mapping and other advanced UX research techniques.

📝 Enhancement Note: The requirement for 5+ years of experience and a strong portfolio indicates a need for a designer who can operate with significant autonomy and contribute strategically. The preference for AI design tools and connected hardware experience suggests the company is forward-thinking and values efficiency and specialized knowledge.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A comprehensive portfolio demonstrating a minimum of 5 years of UX/UI design work specifically for native mobile applications (iOS and Android).

• Showcase of well-crafted mobile app user interfaces and user experiences, including detailed examples of onboarding flows, feature design, and navigation patterns.

• Evidence of designing and iterating on core app experiences that directly impacted user engagement or retention metrics.

• Examples of work within established design systems and component libraries, demonstrating adherence to and contribution to design system principles.

• Case studies or project examples that highlight your process for translating user insights and product requirements into design solutions. Process Documentation:

• Demonstrations of your design process, including user flows, wireframing, prototyping, and high-fidelity UI design stages.

• Examples of how you conduct and utilize user research and usability testing to validate design decisions and drive iterations.

• Documentation of collaboration with engineering teams, including design handoff processes and QA involvement.

• Instances where you have designed for A/B testing or experimentation, along with insights into how designs were iterated based on performance data.

📝 Enhancement Note: For a freelance role, the portfolio is critical. It needs to clearly articulate the candidate's design process, problem-solving approach, and the impact of their work. The emphasis on mobile-specific experiences and collaboration with engineers is key.

💵 Compensation & Benefits

Salary Range: £45,000 - £55,000 per annum (pro-rated for contract duration)

Benefits:

• Competitive freelance rate commensurate with experience.

• Opportunity to work with a leading brand in the health and wellness technology sector.

• Flexible working arrangements, potentially including hybrid options within London.

• Exposure to cutting-edge mobile app development and connected hardware integration.

• Chance to significantly impact user experience and drive engagement for a growing product.

Working Hours: Approximately 40 hours per week, with flexibility expected for a freelance role to meet project deadlines.

📝 Enhancement Note: The salary range provided is for a full-time equivalent. For a freelance contract, the rate would typically be quoted daily or hourly, and this annual range serves as a benchmark for negotiation. The provided benefits are typical for contract roles, focusing on the project's value and impact rather than traditional employee benefits.

🎯 Team & Company Context

🏢 Company Culture

Industry: Health & Wellness Technology, Consumer Electronics, Mobile Applications. Therabody is at the forefront of integrating technology with physical well-being, creating products that enhance recovery, performance, and overall health.

Company Size: While exact figures for the London office aren't provided, Therabody as a whole is a growing, dynamic company, likely in the mid-to-large size range, with a global presence. This suggests a structure that balances established processes with the agility needed for innovation.

Founded: Therabody was founded in 2017, making it a relatively young but rapidly scaling company that has quickly established itself as a leader in its market.

Team Structure:

• The UX/UI Designer will likely be part of a product team that includes Product Managers, Mobile Engineers (iOS/Android), Data Scientists, QA Testers, and potentially other designers.

• This role reports to a Design Lead or Head of Product/Design within the product development organization.

• Cross-functional collaboration is a core element, requiring close partnerships with engineering for technical feasibility and with product management for strategic alignment. Methodology:

• Therabody likely employs agile development methodologies, emphasizing iterative design and development cycles.

• Data-driven decision-making is expected, with a focus on user analytics, A/B testing, and user feedback to guide product evolution.

• A strong emphasis on user-centric design principles and a passion for health and wellness are integral to the company's ethos.

Company Website: https://www.therabody.com/

📝 Enhancement Note: Therabody is known for its innovative approach to recovery and wellness, blending physical products with a robust digital experience. The company culture likely values innovation, user well-being, and a fast-paced, collaborative environment. The "freelance" aspect implies a need for self-starters who can integrate quickly.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned at a mid-to-senior level within the UX/UI design discipline. The expectation is for an experienced designer who can independently manage complex design tasks and contribute to strategic product decisions.

Reporting Structure: The designer will report to a Design Lead or Head of Product, working closely with Product Managers and Mobile Engineers. This structure allows for direct input into product development and clear lines of communication.

Operations Impact: While not a traditional operations role, this UX/UI designer's work directly impacts the company's success by driving user engagement, retention, and ultimately, the adoption and effective use of Therabody's connected products. A well-designed app is critical for the overall customer experience and brand perception, which underpins GTM strategies.

Growth Opportunities:

• For a freelance role, growth often means securing longer-term contracts or being considered for future projects based on performance.

• Potential to deepen expertise in health and wellness tech, connected hardware UX, and AI-assisted design.

• Opportunity to contribute to a high-growth company and build a strong portfolio of impactful mobile design work.

• Networking opportunities with a talented product and engineering team.

📝 Enhancement Note: For a freelance contractor, "growth" typically translates to building a strong professional reputation, securing repeat business, and expanding one's skill set through challenging projects. The opportunity to work on innovative products in the health and wellness space is a significant draw.

🌐 Work Environment

Office Type: This role is based in London and is listed as "On-site," suggesting an office-based environment. However, given the freelance nature, there may be some flexibility for hybrid work.

Office Location(s): London, United Kingdom. Specific office details would be provided upon engagement.

Workspace Context:

• The workspace is likely to be collaborative, with designers working alongside product managers, engineers, and other stakeholders to foster rapid iteration and problem-solving.

• Access to necessary design tools and technology, including Figma, will be standard.

• Opportunities for direct interaction with the product and engineering teams are ample, facilitating clear communication and efficient design implementation.

Work Schedule: The primary working hours would align with UK business hours (Europe/London timezone), approximately 40 hours per week. However, as a freelancer, flexibility may be required to meet project milestones and collaborate with global teams if applicable.

📝 Enhancement Note: The emphasis on "collaboration" and "fast-paced environment" suggests an energetic office culture. For a freelance role, understanding the company's expectations around in-office presence versus remote work will be crucial during the engagement process.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A review of your resume and portfolio to assess experience and fit for the role.

• Portfolio Presentation: A session where you present your portfolio, likely focusing on 2-3 key mobile app projects that demonstrate your UX/UI design skills, process, and impact. Be prepared to discuss your rationale, challenges, and solutions.

• Skills Assessment/Design Challenge: Potentially a small design exercise or a discussion about how you would approach specific design problems relevant to Therabody's app.

• Team/Hiring Manager Interview: A discussion about your experience, collaboration style, and cultural fit with the Therabody team.

Portfolio Review Tips:

• Curate Effectively: Select 2-3 mobile app projects that best showcase your native iOS/Android design experience, user-centric approach, and problem-solving skills.

• Tell a Story: For each project, clearly articulate the problem, your role, your design process (research, wireframing, prototyping, UI design, testing), the challenges you faced, and the outcomes or impact of your design (e.g., improved engagement, successful feature launch).

• Highlight Mobile Specifics: Emphasize your understanding of mobile patterns, platform guidelines (iOS HIG, Android Material Design), and considerations for performance and accessibility.

• Showcase Figma Skills: Demonstrate your proficiency with Figma, including experience with design systems, components, and potentially AI-powered design tools if you have them.

• Be Prepared for Questions: Anticipate questions about your design decisions, how you handle feedback, and your experience with connected devices or health/wellness apps.

Challenge Preparation:

• Familiarize yourself with Therabody's app and its current user experience.

• Review common mobile UX patterns and best practices for onboarding, device pairing, and data visualization.

• Be ready to discuss how you would approach improving user engagement and retention within a health and wellness context.

📝 Enhancement Note: The portfolio is the most critical component for this role. Candidates should be prepared to walk through their projects in detail, demonstrating not just visual design skills but also strategic thinking and a deep understanding of the mobile user experience.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: The core design tool for wireframing, prototyping, and high-fidelity UI design. Proficiency is essential.

• AI-Powered Design Tools: Experience with tools like Figma AI, Galileo, Relume, or similar is highly preferred for accelerating design workflows.

Analytics & Reporting:

• While not a direct requirement for the designer, familiarity with how user data and analytics (e.g., from platforms like Amplitude, Mixpanel) inform design decisions is beneficial. CRM & Automation:

• Not directly applicable to this UX/UI role.

📝 Enhancement Note: Figma is the non-negotiable tool here. The preference for AI design tools indicates a company that values efficiency and is adopting newer technologies to streamline the design process.

👥 Team Culture & Values

Operations Values:

• User-Centricity: A deep commitment to understanding and serving the needs of the user, ensuring that designs are intuitive and impactful.

• Innovation: A drive to explore new technologies and approaches to create compelling and effective user experiences.

• Collaboration: An emphasis on working effectively with cross-functional teams to achieve shared goals.

• Data-Informed Design: Utilizing user data and analytics to guide design decisions and measure success.

• Health & Wellness Focus: A genuine passion for improving people's lives through technology in the health and wellness space.

Collaboration Style:

• Open communication and feedback exchange are likely encouraged.

• Designers are expected to work closely with product managers to align on strategy and with engineers to ensure feasibility and quality implementation.

• A proactive approach to problem-solving and a willingness to adapt to evolving project requirements are valued.

📝 Enhancement Note: Therabody's mission-driven approach in health and wellness likely fosters a culture of purpose and collaboration. The emphasis on data-informed design aligns with operational efficiency and measurable outcomes.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Physical and Digital: Designing seamless experiences that integrate physical products (like Theragun devices) with the mobile app can be complex.

• Platform Nuances: Ensuring a consistent yet platform-optimized experience across iOS and Android requires careful attention to detail.

• Rapid Iteration: Working in a fast-paced, agile environment means adapting to frequent feedback and design changes.

• Translating User Needs: Effectively capturing and translating user needs, especially in the health and wellness domain, into intuitive digital interfaces.

Learning & Development Opportunities:

• Gain in-depth experience in the rapidly growing health and wellness technology sector.

• Develop expertise in designing for connected hardware ecosystems and IoT product integrations.

• Enhance skills in AI-assisted design workflows and tools.

• Build a portfolio with impactful projects for a globally recognized brand.

📝 Enhancement Note: The challenges presented are typical for product designers working on connected devices. The growth opportunities are significant for a designer looking to specialize in this exciting and expanding market.

💡 Interview Preparation

Strategy Questions:

• "Describe your process for designing a new feature for a mobile app, from initial concept to final handoff." (Focus on user flows, wireframes, prototypes, and collaboration with engineering.)

• "How do you approach designing for both iOS and Android, and what are the key differences you consider?" (Reference HIG and Material Design principles.)

• "Walk us through a challenging mobile app design project from your portfolio. What was the problem, your solution, and the outcome?" (Highlight your problem-solving skills and impact.) Company & Culture Questions:

• "What interests you about Therabody and our mission in health and wellness?" (Show genuine interest and alignment with the company's purpose.)

• "How do you handle constructive criticism or conflicting feedback from stakeholders?" (Demonstrate adaptability and collaborative communication.)

• "How do you ensure your designs are accessible and inclusive?" (Showcase your understanding of accessibility standards.) Portfolio Presentation Strategy:

• Focus on Impact: For each project presented, quantify the impact of your design where possible (e.g., "This onboarding flow led to a 15% increase in successful device pairings").

• Detail Your Process: Clearly articulate the steps you took, the tools you used (especially Figma), and the rationale behind your design decisions.

• Highlight Collaboration: Explain how you worked with product managers, engineers, and other team members.

• Be Ready for Deep Dives: Prepare to answer detailed questions about specific design choices, user research findings, and technical constraints.

📝 Enhancement Note: The interview process will heavily rely on your ability to articulate your design thinking and demonstrate practical application through your portfolio. Be ready to discuss your experience with mobile-specific challenges and how you leverage tools and data to achieve user-centric outcomes.

📌 Application Steps

To apply for this UX/UI Designer position:

• Submit your application through the provided link on Rippling.

• Curate Your Portfolio: Ensure your portfolio prominently features your strongest native mobile app (iOS/Android) UX/UI design work, highlighting projects that demonstrate your process, problem-solving skills, and impact.

• Tailor Your Resume: Highlight your 5+ years of relevant experience, specific Figma proficiency, and any experience with connected hardware, health/wellness apps, or AI design tools.

• Prepare Your Presentation: Practice walking through 2-3 key portfolio projects, focusing on your design process, collaboration, and measurable outcomes. Be ready to discuss your approach to mobile UX best practices.

• Research Therabody: Familiarize yourself with Therabody's products, app, mission, and recent news to demonstrate genuine interest and understanding during interviews.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and industry-standard assumptions for a freelance UX/UI role. While efforts have been made to provide comprehensive details, specific aspects of the contract, exact hybrid work policies, and project scope should be clarified directly with Therabody during the hiring process.