
Rain Lieberman
Verified Expert in Design
Designer
London, United Kingdom
Toptal member since May 6, 2020
Rain is a senior product designer with 10+ years of experience designing complex systems, decision-support tools, and human-AI workflows. She specializes in translating opaque models, business logic, and machine-learning outputs into intuitive, trustworthy experiences. Rain has worked with Mastercard, Sage, KPMG, and News UK to build scalable products in complex and regulated domains.
Portfolio
Work Experience
AI Product Designer
Yuvella Design
- Defined product strategy, information architecture, and AI-driven decision frameworks across multiple products, combining systems thinking, rapid prototyping, and user-centered design.
- Designed and launched an AI-powered capability and recovery intelligence platform that translated wearable, cycle, and behavioral data into personalized insights and predictive recommendations.
- Architected scalable design systems, state maps, user flows, and product documentation supporting more than 50 application routes and future engineering expansion.
- Established explainability models and confidence frameworks that improved transparency and trust in AI-assisted predictions and recommendations.
- Developed multi-stage large language model (LLM) workflows and editorial guardrails for an AI-powered resume optimization platform, enabling role-specific content adaptation while preserving factual accuracy.
- Integrated health, activity, and cloud-based data sources, including Health Connect, to support longitudinal analysis, pattern detection, and personalized experiences.
- Applied systems-thinking principles to define feature ecosystems, dependency maps, and data relationships that supported scalable and maintainable product architectures.
- Led end-to-end product execution from concept and research through UX design, prototyping, implementation, and continuous refinement.
- Implemented AI-assisted development workflows using Claude Code, OpenAI models, and modern front-end technologies to accelerate prototyping, iteration, and product delivery.
- Combined product strategy, UX design, AI workflow architecture, and front-end implementation to deliver AI-native products end to end.
Senior UI/UX Designer
Sage Intacct - Main
- Created enterprise decision-support tools that translated complex logic, permissions, and system constraints into intuitive experiences, reducing user errors and improving confidence.
- Designed decision-support systems that transformed complex business models into intuitive workflows, reducing planning cycles by 30–50% and enabling 2× faster decision-making.
- Redesigned collaborative budgeting workflows, enabling department heads to contribute directly and increasing adoption and customer retention by 18% YoY among mid-market clients.
- Designed a patent-pending rule and formula authoring framework that simplified the creation of complex business logic and was selected for presentation at Sage Future 2025.
- Created a unified modeling architecture and reusable logic layer that connected multiple planning domains through shared rules and interaction patterns.
- Designed a shared interaction framework for model editing, version merging, and change history, improving auditability and enabling safe iteration in complex financial planning workflows.
- Created scalable workflows and synchronization patterns across interconnected systems, enabling real-time visibility and reducing manual reconciliation.
- Extended the design system with patterns for high-density interfaces and advanced interactions, balancing consistency with the flexibility required for complex workflows.
- Co-defined the information architecture and navigation model for a new planning platform, working across product, engineering, data, and design teams to align mental models, reduce navigation friction, and support scalable future expansion.
- Led interaction-level data visualization for complex financial planning grids, making models readable, auditable, and actionable across forecasting and budgeting workflows.
UI/UX Design Mentor
Springboard
- Mentored students changing their careers and getting into UX and UI design during the 9-month online course.
- Conducted 1-on-1 weekly video calls with students for detailed project feedback, real-world UX career advice, and setting weekly goals.
- Reviewed and marked project submissions. Provided guidance through the capstone project, design sprint, and industry design project.
Product Designer
Theresa Neil Interface Design LLC
- Translated machine learning (ML) outputs and large-scale data into interpretable decision-support experiences, enabling experts to understand and act on probabilistic signals.
- Designed AI-prioritized dashboards that surfaced high-confidence patterns and anomalies, enabling experts to validate model recommendations instead of manually scanning raw data.
- Collaborated with Mastercard to conduct comprehensive stakeholder and user interviews, meticulously gathering feedback and insights to ensure the software met clients' and end users' precise needs and expectations.
- Designed an executive dashboard that enables swift identification of card and team activity trends, providing crucial insights at a glance. Offered tailored weekly or monthly reports for informed decision-making.
- Built progressive-disclosure workflows that paired AI-generated recommendations with layered evidence, reducing cognitive load and improving trust in high-stakes decisions.
- Worked with Mastercard's design systems and component libraries to develop visually stunning designs that adhere to brand guidelines while increasing the usability of graphs and charts components.
- Reduced the cost of investigating fraud and increased the detection of money laundering schemes by designing core UX for an AML platform powered by machine learning (ML) risk models, reducing investigation costs and improving detection efficiency.
- Teamed closely with analysts to rapidly prototype the SaaS tool, validating key assumptions and ideas to create a highly sought-after tool that revolutionized how financial investors analyze and interpret complex data.
- Designed explainable AI interfaces that surfaced contributing signals and contextual evidence, enabling experts to make defensible decisions with opaque models.
- Created human-in-the-loop workflows for probabilistic AI systems, helping experts interpret, trust, and act on opaque model outputs."
UI/UX Designer
Udrafter
- Designed a zero-to-one talent platform combining profile creation, skills assessments, and application workflows to help graduates and employers reduce hiring friction.
- Led the end-to-end design effort for a multidisciplinary team, defining delivery plans and coordinating execution to launch the MVP on schedule.
- Validated product assumptions through iterative remote testing, translating user feedback into successive MVP improvements."
- Advanced the company's design practice and mentored a junior UX designer by assigning tasks and providing constructive feedback and valuable resources for their continued growth in the industry.
- Established the product's visual language and component library, creating the foundation for a scalable design system.
- Provided guidance on UX design principles and recommended UX best practices while discussing the product strategy in team meetings with management and other team members.
- Built and validated an interactive MVP used to test the value proposition with graduates seeking internships and entry-level roles.
- Partnered with leadership to define product strategy, requirements, and roadmap, translating ambiguous ideas into a prioritized MVP.
UX Designer
Agoro Carbon Alliance (backed by Yara International)
- Designed a B2B2C decision-support platform that translated complex models, incentives, and domain constraints into actionable insights for both specialists and non-technical users.
- Led the end-to-end product lifecycle from zero to MVP, defining problem framing, feature prioritization, user flows, journey maps, wireframes and interactive prototypes through iterative cycles of stakeholder alignment and continuous user validation.
- Simplified scientific and regulatory complexity into intuitive visual workflows, improving comprehension and reducing cognitive load for both experts and non-specialists.
- Designed a shared platform serving multiple user types, balancing enterprise requirements with consumer usability while supporting accessibility and real-time scenario exploration.
- Partnered with engineering and domain experts to translate complex business logic into build-ready specifications and critical user workflows.
- Identified and mitigated adoption risks around trust, comprehension, and usability through iterative prototyping and end-to-end user research.
- Produced user journey maps, feature lists, and research frameworks to align cross-functional teams and maintain clarity across product development.
- Reduced development time by 15% and increased user satisfaction by 25% through rapid prototyping and early validation, contributing to Agoro’s positioning as a pioneer in the carbon farming market.
Product Designer
Swyg
- Created an end-to-end video interview platform from scratch—including recording flows, candidate self-evaluation, and real-time feedback interfaces—shipped as a live B2C product.
- Designed a B2B recruitment dashboard helping hiring managers evaluate candidates from a large applicant pool, reducing hiring time by up to 50%.
- Created onboarding flows across multiple products (candidate experience, recruiter hub, interview practice)—increasing conversion by up to 20%.
- Built and maintained a design system from the ground up for both websites and web apps, ensuring scalable components and patterns.
- Led multiple simultaneous design projects across a cross-functional team, including two SaaS products, onboarding flows, rebranding, and website relaunch.
- Delivered designs that simplify complex, unfamiliar concepts in bite-sized steps, helping familiarize users with the new product faster and reducing friction in the process.
- Conducted UX audits and iterative user testing across B2C web and mobile — identifying friction points that, when resolved, increased user satisfaction and reduced friction by up to 43%.
- Improved the usability and engagement of all Swyg products, including B2B, B2C web apps, and the website itself. This included adding new features based on user research and interview data.
UX/UI Designer
Big Data Health
- Created component-based wireframes for a new healthcare and fitness app, which allowed for flexibility and growth in design and added functionalities.
- Designed multiple clickable prototypes for physicians, therapists, and other health organizations. Rapidly changed designs to match the branding of users with which the prototypes were being tested.
- Consulted the client and stakeholders on remote user testings, analyzing findings, pitch deck designs, layouts, and features.
- Designed a dashboard that enabled therapists to view the patients' progress, health reports, and assessments.
UX/UI Designer
Cera Care
- Spearheaded the user research strategy. Conducted multiple user interviews, resulting in user personas, which helped focus the app design on solving real user needs and goals.
- Spearheaded the user testing sessions for a proposed MVP app, analyzed the data, and suggested improvements based on data, including optimized user journeys, better usability, new wireframe layout, and UI design patterns.
- Created component libraries and a design system for both apps and the back-end system to allow for future expansion and consistency.
- Designed two mobile apps for iOS and Android, used by caregivers and family members to gain visibility into the care of patients. The apps help predict and prevent patient deterioration with 83% accuracy.
- Optimized and redesigned the existing management system used by Cera Care to improve medication compliance in older patients by 35%, reduce patient falls by 17%, reduce urinary problems by 47%, and reduce infections by 15%.
- Worked on detailed wireframes from low-fidelity to high-fidelity prototypes, validating usability and design decisions prior to development, saving Cera time and money in the long run.
- Conducted accessibility user testing on mobile apps to ensure visually impaired users could successfully use the apps and complete critical tasks.
- Carried out accessibility user testing on mobile apps to ensure senior users with low-tech literacy could successfully use the apps and complete key tasks.
- Redesigned the complex and lengthy patient visit report to increase the completion rate, quality responses, and speed of completion, resulting in better data and reducing hospitalization rates by 52%.
- Conducted a UX audit of the existing caregiver app — identifying critical usability failures and accessibility barriers that shaped the redesign brief and design direction.
UX/UI Designer
Freelance at Profinda
- Designed a brand new B2B HR management SaaS platform for large enterprises such as KPMG, EY, and Deloitte.
- Created a component library and a design system used across all the company's products.
- Co-defined the product roadmap with the product owner — scoping feature priorities, design deliverables, and test plans for future releases.
- Unified fragmented resourcing flows across multiple enterprise structures into a single, consistent flow — forming the core interaction model of the new platform.
- Conducted remote and face-to-face user testing sessions to validate key features and flows, iterating prototypes from low to high fidelity across multiple rounds.
- Created multiple clickable prototypes used for user testing. Progressing the prototype designs from low fidelity to high fidelity with each round of tests.
- Presented our design ideas, progress, and next steps in company meetings, involving a cross-functional team for feedback and ideas to help push the product forward.
- Designed the candidate matchability score interface — visualising ranked employees with skill tags, proficiency levels, and fit scores — replacing resource managers' manual process of printing and comparing profiles side by side.
- Led end-to-end discovery — conducting interviews with resource managers, project managers, and employees across multiple enterprises to map the resourcing process, identify friction points, and define the foundational UX direction for a new platform.
UX Designer
Airstream
- Created a fully customed component library that is both minimal and flexible enough, allowing the Airstream staff to create immersive content, mixing editorial and product data throughout.
- Designed an elegant user flow and architecture for the website that is user-friendly and intuitive.
- Developed a unique website concept editorially focused on product placements that stand out in the eCommerce industry. The site receives around 20,000 monthly visits.
- Built complex user flows such as international checkout and delivery, which include multiple delivery options based on location and user preferences.
- Helped create a new concept website which is an online magazine and travel guide that helps users navigate the lifestyle. It also serves as an outlet for the brand to sell related accessories made by other companies.
- Empowered a small editorial team to run a fully-featured magazine store that looks great on every device and provides total editorial creativity.
- Created a unique editorial eCommerce website that received high praise at the WordCamp for Publishers conference at the year of launch.
UX/UI Designer
The Freelancer Club
- Conducted UX audit on existing user flows and existing designs. Highlighted friction points and suggested improvements that were implemented by the client and increased user engagement.
- Designed the new hiring dashboard, allowing users to manage applicants, view portfolios, and chat with and find the right candidates for their projects.
- Introduced new features specifically designed for the creative industry, such as creating a project mood board to communicate the project's creative direction better.
- Redesigned the website layout, look, and feel to a more modern design that appeals to creative users.
- Created a clickable prototype based on the improved user flow for posting a project, which included new features. The successful prototype was then developed into the current platform.
UX Designer
Arcadia Group
- Created a white-label design system that could easily adapt to Arcadia's seven retail brands and their unique style guides.
- Designed a brand new B2C eCommerce platform and ensured a smooth migration of Arcadia's brands from their own system into it.
- Designed new features and conducted remote user testing, leading to the implementation of successful features.
- Collaborated closely with designers, developers, and business analysts to ensure requirements were met on time and the migration to the new system was successful.
- Presented new features and project progress weekly to the stakeholders in company-wide meetings.
UX Designer
River Island
- Designed A/B tests that consistently improved the site usability and increased conversion.
- Created new designs for the store's point of sale (POS) app that increased customer satisfaction and sales.
- Redesigned the checkout user flows to reduce friction and increase conversion.
- Optimized UI elements and overall layouts, including filters and product descriptions, to increase user engagement.
UX Designer
Reed.co.uk
- Merged the existing desktop and mobile sites into a single, fully responsive website. The new website receives over 14.4 million visits from 6.3 million unique visitors and over 100,000 applications every day from more than 30,000 recruiters.
- Optimized the user flows and site architecture to increase the site usability and conversion rate of job seekers and job and course posters.
- Improved the overall site experience by conducting user research, stakeholder workshops, and focus groups.
- Presented new features, designs, and overall progress at company-wide meetings. Defended design decisions with research data and aligned stakeholders with the website direction.
- Mentored junior UX and UI designers on topics such as conducting user testing, layout designs, increasing usability, presenting designs, and more.
- Led the UX design team in weekly synchronization meetings, aligning on the direction and increasing collaboration and communication across all scrums.
- Led design discoveries and stakeholder workshops, uncovering opportunities for growth and designing new features and experiences across the user journey.
- Conducted user research resulting in personas that translate across the entire business offerings, including courses, career advice, and more.
- Optimized user flows and user journeys, resulting in increased user engagement and satisfaction as measured by the CX team and analysts.
- Conducted a comprehensive UX audit of the existing desktop and mobile experiences ahead of the responsive merge — identifying critical friction points, prioritizing fixes, and informing the new unified IA.
UX/UI Designer
House of Kaizen
- Increased conversion rates of checkout processes by up to 28% for companies such as News UK, Thistle Hotels, Avis, and Immediate Media.
- Designed a new CMS hub for News UK to increase sales of memberships for The Times and The Sunday Times.
- Created customized landing pages to increase conversion for Avis Latin America campaigns.
- Conducted UX audits on existing websites, landing pages, and checkout forms. Designed A/B testing variables based on my audits that increased conversion.
- Worked closely with CRO consultants, designing testing strategies, monitoring tests progress, and presenting results to clients.
UX/UI Designer
Freelance
- Designed a mobile app that served as a travel guide and journal during pilgrims' journeys in Israel.
- Created wireframes and clickable prototypes for various clients to test before development.
- Conducted remote and face-to-face user tests and interviews for various clients to validate ideas and obtain user feedback.
Education
Master's Degree in Product Design
Metropolitan University - London, United Kingdom
Bachelor's Degree in Architecture
Westminster University - London, United Kingdom
Certifications
UX Design
General Assembly
Skills
Tools
Sketch, Zeplin, InVision, AI Tools, Miro, Adobe Illustrator, Adobe Photoshop, Balsamiq, Lucidchart, Hotjar, Google Optimize, Usertesting.com, Zoom, Slack, Jira, Claude, Figma Make, FigJam, Figma Plugins
Industry Expertise
Retail & Wholesale, Travel & Leisure, Healthcare, Fashion, Social Networking, Banking & Finance
Platforms
Figma, Web, Mobile, WordPress, iOS, Android, Google Ads
Other
Web Design, Responsive Design, Web UX Design, eCommerce Design, B2C, B2B, eCommerce UX, SaaS Design, HR Tools, Platform Design, Web UX, Responsive Web Design (RWD), Dashboard Design, User-centered Design (UCD), User Research, User Experience (UX), User Interface (UI), Web App Design, UX Prototyping, Product Design, Software as a Service (SaaS), UX Flows, Low-fidelity Prototypes, Dashboards, UX Design, UI Design, User Flows, Wireframing, Design Systems, Component Libraries, User Testing, Enterprise SaaS, Wireframe to Product, Collaboration, SaaS, Web App UX, Web App UI, Data Visualization, Design, Enterprise, Early-stage Startups, MVP Design, System Design, UX Testing, User Personas, Web Applications, UX Documentation, High-fidelity Prototypes, User Validation, Content Management Systems (CMS), UX Wireframes, Mockups, Teaching, Communication, Presentations, Desktop App Design, Empathy Mapping, User Experience Design, UX Strategy, Business to Business (B2B), Product Strategy, Agile Product Management, Atomic Design, Cross-functional Team Collaboration, Discovery Workshops, Systems Thinking, Responsive, Mobile Design, Design Thinking, User Interviews, Remote User Testing, Mobile App Design, Mobile UI, UX Audits, Conversion Rate Optimization (CRO), Prototyping, Agile UX, Personas, Sitemaps, UX Architecture, Rapid Prototyping, Website Redesign, Mobile Apps, Software Design, eCommerce, Responsive Web Apps, Onboarding, User Journeys, Mobile UX, Visual Design, Usability Testing, Information Architecture (IA), Interactive Prototypes, Feature Roadmaps, Ideation, UX Research, Mobile Prototypes, Rapid Interactive Prototyping, Lean UX, Fintech, Landing Page Design, Financing, Bank Transactions, UX Review, Mobile First, Specialty Healthcare, Complex Application User Interfaces (UI), Interactive Charts, Animated Interactive Graphs, Admin Panels, Analytical Dashboards, Chart Design, Data Storytelling, Mobile App UI, Mobile UX Design, Mobile UI Design, Financial Services, Quizzes, Competitive Analysis, Design Leadership, User Stories, Medtech, Medical Software, Tone of Voice, Product Lifecycle Management (PLM), School, Training & Training Content Development, Enterprise Application Design, Productivity, Layout Design, WebApp, User Journey Maps, Responsive Development, Financial Design, Design Workshops, B2B2C, Leadership, Business to Business to Consumer (B2B2C), Platforms, Enterprise Design, Data-heavy Design, Data-driven Design, Decision Support Systems (DSS), Risk Analysis, Complex Web Systems, Usability Analysis, Artificial Intelligence (AI), Data Grids, Fintech Design, Financial Products, Financial Modeling, Financial Management, Human Assessment, Product Roadmaps, Web Content Accessibility Guidelines (WCAG), Storybook, Token Design, Workshop Facilitation, AI Design, AI-powered Product Design, Artificial Intelligence as a Service (AIaaS), Stakeholder Management, CRM, Web UI Design, Web Components, Checkout, Human Resource Management Systems (HRMS), Editorial Design, Interactive UX, UX Workshops, Critical Analysis, Agile, Scrum, Website CMS, Rapid Sketching, UX Mentoring, Job Boards, Cross-platform UX, Creative Industry, App Design, Multi-channel, Electronic Patient Care Reporting (ePCR), Internal Systems, Management, Remote Work, Video Chat, Peer-to-peer Networking, Social Networks, Apps, Health IT, Healthcare IT, Wellness, White Labeling, Patient Consultation, Google Drive, Web Dashboards, Agile Sprints, Team Mentoring, A/B Testing, Optimization, Conversion, Startups, Recruiting, User Onboarding, Live Chat, Interviews, Layout, Redesign, Forms, Finance, Software, IT Services, Google, Touchscreens, Wealth Management, Edtech Design, Accessibility, Map-based Systems, Branding, Marketplace Design, Storyboarding, Information Design, Machine Design, Explainable Artificial Intelligence (XAI), Anti-money Laundering (AML), Compliance, Regulatory Technology (Regtech), Fraud Detection, ChatGPT, Human-centered AI, AI Product Strategy, Data Interpretation, Risk Assessment, Complex Problem Solving, Workflow Design, Data Product Design, Budgeting, Budget Modeling, Budget Management, Financial UX, Predictive Modeling, Automation, Logic Design, Data-informed Decisions, Data-driven Decision-making, Financial Planning & Analysis (FP&A), Scenarios, GRID, AG Grid, Fraud Prevention, Journey Mapping, Highcharts, Claude Code, Google Stitch, Anthropic, OpenAI, Healthtech
Experience
- UX Design - 15 years
- Wireframing - 15 years
- SaaS - 10 years
- B2B - 9 years
- Startups - 8 years
- Enterprise SaaS - 7 years
- Dashboards - 7 years
- Software Design - 4 years
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