---
title: 'Senior Data Engineer at Prolific'
canonical: 'https://feeny.ai/job/senior-data-engineer-prolific-united-kingdom-w7sznrwzrtd5'
type: 'job'
last_seen: '2026-09-06'
---

# Senior Data Engineer at Prolific 

- **Company:** Prolific 
- **Location:** United Kingdom
- **Work type:** remote
- **Posted:** 2026-06-29
- **Last confirmed live:** 2026-09-06
- **Apply:** https://job-boards.eu.greenhouse.io/prolific/jobs/4911780101

## Job description

Senior Data Engineer

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

We're looking for a Senior Data Engineer to help build scalable data solutions that serve teams across the business – from data scientists and analysts to AI engineers and product teams. You'll contribute to both the underlying platform and the way data is used in our products, working in a modern, cloud native environment where privacy, security, and good data practices are part of how we build.

## What you’ll bring to the role

- Technical Expertise: 3+ years building and shipping production grade data systems, with strong SQL skills and proficiency in Python or another object-oriented language (Java, Scala etc.)
- Familiarity with cloud-native infrastructure - ideally some exposure to Terraform, Kubernetes, or similar IaC and container orchestration tools. We don't expect deep expertise in all of these, but comfort working in this kind of environment matters.
- Experience designing data APIs or services that expose data to applications, or a strong interest in working across the analytical/operational boundary.
- A thoughtful approach to data quality, privacy, and security - you understand that how data is used is as important as how it's moved.
- Strong collaboration skills and comfort working across teams with different priorities — engineers, data scientists, AI engineers, product.
- A pragmatic, curious mindset - you enjoy keeping up with the field and know when to reach for a new tool versus when to stick with what works.
- Pipeline Management: Hands on experience with data pipeline tools (Airflow, dbt) and strong ability to optimise for performance and reliability.
- Quality Focus: Commitment to continuously improving product quality, security, and performance through rigorous testing and code reviews.
- Documentation: Meticulous approach to creating and maintaining architecture and systems documentation.
- Problem-Solving: Exceptional analytical skills to troubleshoot complex data issues and implement effective solutions.
- Independence: Capability to ship medium features independently while contributing to the team's overall objectives.

## What you’ll be doing in the role

- Build and maintain data pipelines that power analytics, ML workloads, and product-facing applications - from internal databases, SaaS sources, and streaming systems through to the teams and services that consume them.
- Evolve our data platform alongside cloud platform engineers, using infrastructure-as-code (Terraform) and Kubernetes-based deployments (Argo) to keep the platform scalable, reliable, and self-serve.
- System Architecture: Design and implement scalable data infrastructure that accommodates our growing data volume and complexity.
- Develop data services and APIs that expose trusted data to product applications, bridging analytical and operational systems.
- Own data quality and observability, putting monitoring, testing, and alerting in place so issues are caught early and trust in the data stays high.
- Partner with AI engineers, data scientists, analysts, and product teams to understand their data needs and design the right solutions – not just the quickest ones.
- Uphold strong data privacy, security, and compliance practices in everything you build, particularly where data flows into product-facing contexts.
- Technical Documentation: Create and maintain comprehensive documentation of data flows, models, and systems for knowledge sharing.
- Security and Compliance: Ensure all data systems adhere to security best practices and compliance requirements.

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. [linkedin.com/company/prolific-com](https://www.linkedin.com/company/prolific-com)

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