--- title: 'Lead Product Designer at Prolific' canonical: 'https://feeny.ai/job/lead-product-designer-prolific-united-kingdom-e8vkk00ahqbr' type: 'job' last_seen: '2026-10-18' --- # Lead Product Designer at Prolific - **Company:** Prolific - **Location:** United Kingdom - **Work type:** remote - **Posted:** 2026-04-02 - **Last confirmed live:** 2026-10-18 - **Apply:** https://job-boards.eu.greenhouse.io/prolific/jobs/4831281101 ## Job description Lead Product Designer Team: Product, Research & Design Prolific Prolific is not just another player in the AI space – we are the architects of the human data infrastructure that's reshaping the landscape of AI development. In a world where foundational AI technologies are increasingly commoditized, it's the quality and diversity of human-generated data that truly differentiates products and models. ## The Role As the Product Design Lead in the Prolific for Participants Group, you will lead the design vision, strategy, and execution across three cross-functional teams. You’ll oversee participant experiences and authenticity within both our global marketplace and our dedicated specialist pool, as well as the internal services powering our participant models. In addition to this leadership responsibility, you will be the hands-on designer responsible for the outcomes of a core participant domain, reporting to the VP of Product and collaborating with a world-class team of product engineers, AI researchers, and data scientists – as well as product managers and designers across Prolific. You bring a background in crafting user-psychology-informed experiences for large-scale audiences and a natural ability to synthesize complex systems into elegant and transparent solutions. Thriving in ambiguity and juggling multiple initiatives, you move at a rapid pace while galvanizing exceptional performance around you. Ultimately, your success will be defined by your conceptual clarity, peer-to-peer bridge-building, and your consistent ability to bring the participant “into the room Our Product, User Research, and Design Team indexes heavily on drive, commercial acumen, and pragmatism. Building on our Prolific Principles, we expect you to demonstrate reliability, grit, and bravery, and to model these traits within the team. You’ll be given a lot of trust and autonomy in return, as is always the case within Product at Prolific. ## What you'll be doing - You'll bring your rich and varied design career experience to bear to solve customer problems and create new moments of joy for our participants who use Prolific—both ‘pocket money’ academic research participants around the world and deeply skilled experts working on AI training and evaluation. - You’ll build extensively for internal use cases and users, including in participant modeling platforms and tools for our Human Data Ops team. - You’ll raise the bar in our Design Team, and co-own cross-functional areas like accessibility (we are WCAG 2.1 AA compliant) and our Design System with other design leaders. - You will line-manage a group of 1-3 designers directly, and mentor others, coaching behaviours and skills, and modeling game-changing approaches by directly doing. - You'll have user research and data analysis responsibilities ## What you'll bring - An extensive and varied track record of in-house product design work alongside product managers and engineers. (Pure agency experience is likely to be screened out.) - Experience in either line-managing or acting as player/coach for other designers. - Confidence working with AI prototyping tools. We use Figma Make. - Competence or expertise in the industry's standard design tools, principles, and methodologies, and a basic to detailed understanding of how AI models work. Even better if you have - A lived experience of a rapidly scaling startup – especially if you loved it! - AI training experience, or a data science or computer science background. - A track record of giving back to your Product/Design community. - A track record of excelling across all your pursuits, beyond your chosen career. Why Prolific is a great place to work We've built a unique platform that connects researchers and companies with a global pool of participants, enabling the collection of high-quality, ethically sourced human behavioral data and feedback. This data is the cornerstone of developing more accurate, nuanced, and aligned AI systems. We believe that the next leap in AI capabilities won't come solely from scaling existing models, but from integrating diverse human perspectives and behaviors into AI development. By providing this crucial human data infrastructure, Prolific is positioning itself at the forefront of the next wave of AI innovation – one that reflects the breath and the best of humanity. Working for us will place you at the forefront of AI innovation, providing access to our unique human data platform and opportunities for groundbreaking research. Join us to enjoy a competitive salary, benefits, and remote working within our impactful, mission-driven culture. Links to more information on Prolific [Benefits](https://www.notion.so/prolific/dbc97f2b3ff24f1bb6fa834a2c9c3283?v=4f874e88e46a4f54afd8bf62f1db19ed&p=9f2c1de05dfa43338d48c20362bfead1&pm=c) [External Handbook](https://www.notion.so/prolific/dbc97f2b3ff24f1bb6fa834a2c9c3283?v=4f874e88e46a4f54afd8bf62f1db19ed) [Website](https://www.prolific.com/) [Youtube](https://www.youtube.com/@JoinProlific) Privacy Statement By submitting your application, you agree that Prolific may collect your personal data for recruiting and global organisation planning. Prolific's [Candidate Privacy Notice](https://www.notion.so/prolific/Policy-Privacy-Notice-for-Candidates-f94a136a67544388b4888bc436451b57) explains what personal information Prolific may process, where Prolific may process your personal information, its purposes for processing your personal information, and the rights you can exercise over Prolific use of your personal information. ## About Prolific ## Company Overview - **One-liner**: Prolific is a technology company that provides a platform for collecting high-quality, human-derived data from verified participants, used by AI developers, researchers, and organizations for AI training, surveys, and user research. - **Entity Type**: Private (Series A) - **Headquarters**: London, UK (with a New York City hub and remote presence across the US and UK) - **Founded**: 2014 - **Founders**: Phelim Bradley, Ph.D. (CEO & Co-founder) ## Core Business - **Primary industry/industries**: AI data services, market research, academic research, human-in-the-loop AI - **Target customers**: B2B — AI developers, academic researchers, product teams, and enterprise organizations (35,000+ data collectors use the platform) - **Mission or purpose statement**: "To help thinkers, creators, and innovators make the impossible possible" by building a future where human insight drives breakthroughs in science, technology, and society. ## Products & Services - **Prolific Platform**: A web-based platform that connects researchers and AI developers with a pool of 200,000+ active, verified participants for online studies. Studies launch every 2 minutes, with a 97% completion rate and data sets delivered in under 2 hours on average. - **AI Training & Evaluation**: Human feedback from representative populations for preference tuning, safety evaluations, and benchmarks. Used to defend AI model quality. - **Research Services**: Accelerated research through insights from verified participants, supporting behavioral research, surveys, and user testing. - **Participant Marketplace**: A paid participant side where individuals can join paid online studies with flexible scheduling and real payouts. ## Market Standing - **Valuation/Market Cap**: Not publicly disclosed - **Key Metric**: $32 million in Series A funding (secured in 2023) - **Notable Investors/Partners**: Series A funding of $32M (lead investors not specified in available data); trusted by thousands of organizations including cutting-edge AI startups and Ivy League universities. - **Growth Signals**: - Expanded into the US with a New York City hub (announced February 2024) - 172 open job listings across multiple departments (as of mid-2026) - 700+ studies launch every day on the platform - Participants from 38+ countries speaking 80+ languages - 10,000+ organizations use Prolific - 35,000+ data collectors use the platform ## Competitive Advantages - **Verified participant pool**: All participants are actively vetted, verified, and fairly paid, ensuring high-quality, trustworthy data without the noise of typical survey platforms. - **Speed and reliability**: Data sets are delivered in under 2 hours on average, with a 97% study completion rate — a significant moat for time-sensitive AI and research projects. - **Representative populations**: Ability to source diverse, representative participant pools for AI safety evals and benchmarks, critical for regulatory compliance and model defensibility. - **Trusted brand**: 10 years of operation, trusted by leading academics, AI developers, and Ivy League universities. ## Strategic Focus - **AI and human data**: Continuing to build the "biggest pool of human-derived data in the world" with a focus on powering AI training, safety evaluations, and benchmarks. - **US expansion**: Opening a New York City hub and hiring across the US (San Francisco, Seattle, New York) signals a major push into the North American market. - **Product development**: Active hiring for product, engineering, data science, and AI research roles indicates ongoing platform innovation and scaling. - **Enterprise growth**: Hiring for Strategic Customer Success Managers, Solutions Engineers, and Strategic Account Executives suggests a focus on enterprise and strategic accounts. ## Why Work Here - **Remote-first culture**: Prolific is remote-first with flexible work arrangements. Employees report high satisfaction with working location freedom (FlexScore data). Regular company-wide and team meet-ups, plus an annual in-person get-together. - **Autonomy and flexibility**: 81% of employees feel they have complete autonomy over their work; 83% are happy with flexible hours; 78% report good work-life balance. - **Benefits**: Home office budget for new joiners with annual top-up, personal learning and development budget, share options, and competitive benefits (86% employee satisfaction with benefits). - **Diversity and inclusion**: Strong DEI focus with a formal Diversity, Equity and Inclusion Monitoring statement; a culture that celebrates differences and removes barriers. - **Growth opportunity**: Join a fast-scaling business backed by $32M in Series A funding with a clear mission and strong product-market fit. - **Culture principles**: "We care deeply about our customers," "We embrace change," "We aim high," "We win together," "We make every minute count," "We are optimistic and find a way." - **Hiring process**: Structured 4-stage process (talent call, hiring manager interview, panel interview with task compensation, final principles interview) with feedback surveys to continuously improve. ## Sources 1. [prolific.com](https://www.prolific.com/) 2. [prolific.com/about](https://www.prolific.com/about) 3. [prolific.com/careers](https://www.prolific.com/careers) 4. [job-boards.greenhouse.io/prolific](http://job-boards.greenhouse.io/prolific) 5. 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