Participant Recruitment Partner​/Sourcer

Job Overview

3 month FTC with the opportunity to extend—Open to candidates based in US/Mexico only

Base Salary + monthly performance bonus potential based on performance

NB - these roles are high priority; therefore, we are prioritizing candidates who can commence employment in the next 2 weeks

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.

As a Participant Recruitment Partner, you will play a pivotal role in continuing the growth of Prolific's specialized participant pools. You’ll act as a key enabler for the evergreen expansion of our expert network, as well as working closely with delivery teams to support targeted participant resourcing based on our customers' needs. This role demands a hands‑on approach to high-volume participant identification, attraction, and engagement, as well as cross‑functional collaboration to meet the demands of both internal stakeholders and external clients.

• Drive the identification, attraction, and engagement of top-tier, highly qualified specialist participants, building and maintaining Prolific's world-class participant pool.
• Act as a trusted partner for client‑specific AI delivery teams, serving as the primary point of contact for all recruitment‑related operations and ensuring seamless collaboration.
• Deliver exceptional results on bespoke client projects, consistently meeting or exceeding ambitious project goals.
• Maintain and elevate the quality, diversity, and readiness of Prolific’s participant pools, optimising for customer needs and high‑impact outcomes.
• Design and manage robust verification processes for domain experts and AI taskers, guaranteeing their skills and qualifications align with client‑specific requirements.
• Continuously refine recruitment, onboarding, and activation funnels, using data‑driven insights to boost participant retention and engagement.
• Monitor and analyse candidate engagement and quality metrics, translating insights into actionable improvements that maximise impact and operational excellence, both quantitatively and qualitatively.

• Proven track record in recruitment excellence, with experience attracting and engaging world‑class talent in high‑growth talent acquisition environments.
• Background in executing innovative, high‑volume sourcing strategies, delivering scalable pipelines of top‑tier candidates.
• Builder mindset with a passion for innovation, designing and scaling sourcing and hiring solutions that continuously elevate speed to onboard and operational efficiency.
• Strong hands‑on expertise with modern sourcing and outreach platforms (e.g. Linked In, Welcome to the Jungle), leveraging tools creatively to access hard‑to‑reach talent pools.
• Exceptional execution skills, with the ability to manage multiple priorities simultaneously, deliver at pace, and thrive in a fast‑moving, ambiguous environment.
• Highly data‑driven and commercially minded, confident using analytics and operational metrics to measure impact, optimise performance, and inform decision‑making.

• Experience with global crowd sourcing or gig‑economy platforms, which would add significant value.
• Experience supporting AI/ML lifecycle projects, such as data labeling, annotation, or domain‑specific task curation.

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…