Senior Software Engineer (Product Engineering)

Senior Software 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 Senior Software Engineers with a 'product builder' mind-set to join our specialized team focused on serving frontier model creators and AI application developers. As a full-stack engineer, you will work across Prolific’s domains to solve customer and product problems.

This is an exciting opportunity to work directly with cutting-edge AI companies, making critical technical decisions that balance scrappy startup execution with scalable, reliable engineering as Prolific revolutionizes research for the AI community. You'll need to be based within regular commuting distance of San Francisco office, to facilitate regular in person collaboration with customers and our US team, as well as working seamlessly with our UK-based tech teams.

What you’ll bring to the role

6+ years of relevant technical expertise in a product engineering role.

Python (we use Django & Fast API)

TypeScript and JavaScript (we use Vue.js)

SQL and NoSQL databases (we use MongoDB and PostgresSQL)

Building and deploying to the cloud (we use GCP, Github Actions & CircleCI)

Instrumenting, monitoring & observability (we use Datadog)

Good understanding of modern web applications and architecture design patterns

Can translate business concepts into software models

Familiar working in both monoliths and distributed systems

Understanding of the importance of code quality and automated testing

Strong communication and collaboration skills for direct customer interaction

Ability to quickly learn and adapt across the breadth of Prolific’s domains

Judgment to balance scrappy startup execution with scalable, reliable engineering

Comfort with rapid iteration and responding to customer queries with urgency

Experience supporting applications in production environments

Experience working in a collaborative product engineering team

Interest in the product lifecycle and delivering value to customers

Comfortable learning from feedback and iterating based on data

Curious and motivated to continuously improve your technical skills

What you’ll be doing in the role

You will be highly self-motivated and energetic and enjoy working in a fast-paced environment with a bias for action, making decisions balancing generic, scalable solutions with rapid, scrappy implementations

Work as part of a cross functional team alongside engineers, product managers, account managers, and customer success specialists

Collaborate directly with customers and stakeholders to understand their unique needs and translate those into proportionate and actionable next steps.

Develop domain expertise in AI development workflows and frontier model training

Respond quickly to customer queries and technical challenges, working in the open with the team, owning problems and their solutions

Work across shared repositories with other tech teams writing clean, maintainable code while maintaining customer-specific focus

Contribute to the design, implementation, and maintenance of product features, using agile development practices to plan and deliver work as a team

Help to support production systems and respond to incidents when required

Learn how our systems operate from development through to production

Actively participate in team discussions, retrospectives, and knowledge sharing

Continuously develop your technical and product understanding

Collaborate effectively with UK-based teams across time zones

Pushing the boundaries, questioning the status quo, ensuring what we are doing and what we are building has high value and impact for our users

Key Technologies

Cloud Platforms: Google Cloud Platform and AWS

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