Senior Product Engineer II

Prolific; Greater London; Hybrid; GBP 120,000 - 150,000; Full time

Benefits offered by this job

Remote working

Competitive salary

Learning & development opportunities

Job summary

Prolific is seeking a Senior Product Engineer II to be the senior technical contributor within the Engineering team. You will partner with the Engineering Manager to set technical direction and ensure delivery excellence, balancing hands-on work with leadership.

You will become the go-to person for architectural decisions within your domain and represent the team beyond its boundaries. You will define the team’s technical roadmap, drive engineering excellence, guide discovery and solution

Qualifications

• Proven experience leading technical direction and architectural decisions.
• Strong background in software engineering, testing, reliability, and scalable design.
• Ability to connect technical choices to business outcomes.

Responsibilities

• Define the team's technical roadmap and architectural direction with the EM.
• Own code quality, testing, reliability, and performance standards.
• Guide technical discovery, design, and decision-making for the domain.
• Collaborate cross‑team and mentor engineers at all levels.
• Represent the team’s work externally and drive excellence.

Skills

Technical leadership

Engineering expertise

Product mindset

Influence and communication

Mentoring and collaboration

Tools

Python

JavaScript

TypeScript

Vue.js

Django Rest Framework

Kubernetes

Docker

Job description

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.

Team: Engineering

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

Benefits

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