Senior Product Engineer II at Prolific (United Kingdom)
Prolific · United Kingdom·
Role details
Job description
Senior Product Engineer II
Team: 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 II you will be the senior technical contributor for your team, partnering with the Engineering Manager to set technical direction and ensure delivery excellence. You will balance hands-on contribution with technical leadership, serving as the go-to person for technical decisions and architecture within your team's domain. You are increasingly outward-facing, representing your team's technical work beyond its boundaries.
What you’ll be doing in the role
- Define Technical Direction: Partner with the EM to shape the team’s technical roadmap, strategy, and architectural direction.
- Drive Engineering Excellence: Own code quality, testing, reliability, performance, and engineering standards across the team.
- Lead Technical Discovery: Guide technical planning, discovery, solution design, and decision-making, balancing short- and long-term needs.
- Collaborate and Influence: Facilitate cross-team technical collaboration, contribute to engineering-wide initiatives, and act as a technical liaison.
- Grow the Team: Actively mentor and develop engineers at any level, within and beyond the team.
What you'll bring to this role
- Technical Leadership: Proven experience leading technical direction, making architectural decisions, and solving complex engineering problems.
- Engineering Expertise: Deep expertise in software engineering, architecture, testing, reliability, performance, and maintainable system design.
- Product Mindset: Ability to connect technical decisions to customer and business outcomes while balancing delivery with long-term technical health.
- Influence and Communication: Strong communication skills with the ability to build consensus, influence across teams, and explain technical concepts to non-technical stakeholders.
- Mentoring and Collaboration: A strong track record of developing engineers, working effectively with EMs and wider engineering communities, and contributing to a culture of learning and excellence.
Key Technologies.
We ask for expertise in some, and the willingness to learn where required
- Cloud Platforms: AWS and GCP
- Programming Languages: Python, JavaScript, and TypeScript
- Frameworks: Vue.js, Django Rest Framework, Container-based and Serverless architectures
- Databases: MongoDB and DynamoDB
- DevOps and Monitoring: CircleCI, GitHub Actions, Kubernetes, Celery, EventBridge and 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
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.
Why work at Prolific
- 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.