Prolific Tech Stack

Human data platform for AI model training and evaluation

Software Development London 51–200 employees Founded 2014 Privately Held

Prolific operates a crowdsourced human-data platform where over 35,000 AI developers and researchers launch studies to collect labeled training data and model evaluations. The hiring mix is heavily weighted toward data (197 roles) and research (115 roles)—not engineering (30)—which reflects the business model: scaling participant recruitment, quality assurance, and domain expertise in data validation rather than platform infrastructure. Active projects cluster around AI evaluation tasks, legal document analysis, and visual communication refinement, while pain points center on data quality, diversity, and compliance—the exact friction points that arise when operating a global participant pool across 25+ countries.

Tech Stack 36 technologies

Core StackPython JavaScript Java Django FastAPI TypeScript Vue MongoDB PostgreSQL GitHub Actions CircleCI Datadog AWS Power BI Tableau Zapier Hugging Face HTML CSS PayPal LinkedIn GCP Azure SQL Anaplan Google Sheets Excel Discord macOS Google Workspace+6 more

What Prolific Is Building

◆Challenges

Validating complex financial data
Ensuring research outputs reflect practical realities
Lack of quality human data
Lack of diverse human data
Legal compliance for ai research
Improving ai design evaluation
Refining ai visual communication
Executive-level insights
Ensuring high-quality data
Ensuring ai outputs are professional

▲Active Projects

Experimental tasks refining ai visual communication
Ai training tasks
Legal document analysis
Ai model evaluation
Expert inquiry for b2b research
Quality assurance of research outputs
Ai evaluation project
Improving ai models
Ai visual communication refinement
Evaluating ai performance on psychology prompts

Hiring Activity

Accelerating550 roles · 550 in 30d

Department

Data

197

Research

115

Finance

101

Legal

Design

Engineering

Marketing

Ops

Seniority

Mid

223

Senior

198

Junior

Intern

Lead

Manager

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About Prolific

Prolific is a London-based platform connecting AI developers with a global pool of human participants for data collection and model evaluation. The company hosts over 35,000 active users launching new studies at a rate of one every 2 minutes. Core services include participant recruitment, crowdsourced task completion, and quality assurance of research outputs. The platform supports use cases across AI training data labeling, model evaluation, legal document analysis, and expert-led research. Operations span 25+ countries including the UK, US, Japan, Malaysia, Australia, and Canada, with a mid-stage team of 51–200 employees focused on research, data operations, and compliance.

HeadquartersLondon

Company Size51–200 employees

Founded2014

Hiring MarketsUnited Kingdom, United States, Japan, Malaysia, China, Taiwan, Australia, Canada

Frequently Asked Questions

What is Prolific's tech stack?

Python, JavaScript, Java, Django, FastAPI, TypeScript, Vue, PostgreSQL, MongoDB, GCP, AWS, and Azure. Also uses Datadog, Power BI, Tableau, Hugging Face, and GitHub Actions.

What countries does Prolific operate in?

Prolific hires and operates across 25 countries: UK, US, Japan, Malaysia, China, Taiwan, Australia, Canada, Mexico, South Africa, Spain, Germany, Netherlands, Ireland, France, Poland, Italy, Brazil, Sweden, Argentina, UAE, Colombia, Chile, Dominican Republic, and Vietnam.