Remote
UK
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Engineering
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 a Senior Product Engineer, you'll be one of the early engineers in our Agentic Training & Evals team.
You'll build the infrastructure that lets us evaluate AI agents, alongside real human expert work in safe and secure environments.
This is a genuine 0→1 role. There isn't a well-established playbook or existing architecture for you to simply maintain. You'll have significant influence and ownership over the technical direction of the team and the products we build.
You'll work closely with engineering, product and AI research to turn ambiguous problems into scalable systems, and you'll see the impact of what you build directly.
What you’ll bring to the role
What you’ll be doing in the role
Key Technologies
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
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 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.
Health Insurance
Dental Insurance
Vision Insurance
Life Insurance
Wellness Stipend
401(k) / Pension
Stock Options
Pay Transparency
PTO / Vacation
Home Office Stipend
Parental Leave
Learning & Development Budget
Most staff roles are open to remote candidates across the UK and US, and the offices in London, Manchester, and New York are optional drop-in spaces rather than required locations. A small number of sales and customer success positions are advertised as hybrid out of London or San Francisco, so it is worth checking the specific role you are interested in.
No. Alongside its salaried staff jobs, Prolific runs a large network of paid AI trainer and study participant opportunities that appear on the same careers board but are contract and participant work rather than full-time employment. If you are looking for a staff role, focus on teams like Engineering, Data and AI, Product, or Human Data.
Prolific uses a location-based pay model, so salary bands are calibrated to the region a role is hired in rather than a single global rate. The bands are shared openly as part of the hiring process instead of being negotiated from scratch.
Prolific suits people who want to work remotely with a high degree of flexibility and who are drawn to the human data infrastructure behind AI research and academic studies. Because roles range from engineering and data science to product and participant operations, it fits both technical builders and operations-minded people.
