Senior Product Engineer (Agent Training and Evals)
Senior Product Engineer (Agent Training and Evals)
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
Strong experience building scalable infrastructure or distributed systems in the cloud
Solid understanding of how systems are deployed, scaled and secured
Hands-on experience with evaluating AI models or agents
Interest in how AI agents are trained, evaluated and improved
Bonus: experience with image, video, or audio processing
Strong product mindset with a focus on delivering business and customer value
Comfort with ambiguity, and the ability to move quickly from idea to working system
Strong communication and collaboration skills
Python experience is useful, but not essential
What you’ll be doing in the role
Solve hard problems around compute, orchestration, scaling, security and reliability
Help develop approaches for training, benchmarking and evaluating AI agents
Work with emerging agentic AI technologies and rapidly evolving models
Make pragmatic technical decisions in a highly ambiguous environment
Partner closely with product engineering and AI research to turn customer problems into working products
Drive direct impact in a fast-moving, high-ownership, cross-functional team
Key Technologies
Cloud Platforms: Google Cloud Platform
Programming Languages: Python, JavaScript, and TypeScript
Frameworks: FastAPI, Vue.js Container-based and Serverless architectures
Databases: Postgres SQL
DevOps and Monitoring: GitHub Actions, Kubernetes, DataDog
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
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