Senior Product Engineer

Prolific is hiring a Senior Product Engineer for a remote role open to applicants in United Kingdom. Level rates it ; you can apply on Prolific.

Level's read on this job

Little AI ●○○○ is how Level rates this role: aI is not part of the work.
The posting lists this role as remote.
Tools and skills the posting cites include TypeScript, JavaScript and Python.
Level lists 32 other open roles at Prolific.
The role was posted within the past week.

AI in this role

Senior product engineer to build human data infrastructure web applications supporting AI development.

typescriptjavascriptpythonawsgcp

full-stacknosqlevent-driven-architecturetest-automation

Senior Product Engineer

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

We’re looking for Senior Product Engineers with a ‘product builder’ mind-set to join our team and take a pivotal role in the development and guidance of our product. As a ‘t-shaped’ engineer, you will bring a broad practical knowledge across various areas of software development, complementing and supporting our growing team whilst likely having a deeper specialism in front or backend. This is an exciting opportunity to leverage your existing skills, experience, and knowledge to significantly influence the trajectory of our product as we aim to revolutionize research.

What you’ll bring to the role

Deep understanding of modern web applications
Experience building Typescript/Javascript applications and using NoSQL databases
Experience using Python
Knowledge of Event-Driven Architecture
Experience using AWS (Serverless) and/or GCP
Understand the importance of driving quality into code through test automation
Have supported applications in production, with demonstrable experience of good observability practices within a full stack environment. (e.g. Rum, Tracing)
Have worked in a collaborative environment with strong engineering practices and know what good engineering looks like
Care about the product life cycle and are customer value focused
Understand the value of continuous, iterative improvement using data to drive decisions and a culture of feedback
Passionate about software development with an appetite for learning and self-improvement

What you’ll be doing in the role

As a member of a cross-functional, stream-aligned team, you will work collaboratively with the teams’ engineering manager, product manager, designer, and up to 4-5 other engineers, including a tech lead
Using agile software development practices and a product mindset, you will work as a team to plan, build and support software that our customers love
You will be highly self-motivated and energetic and enjoy working in a fast-paced environment with a bias for action
Collaborating with teams outside of product engineering, working closely with customers and understanding their needs
Be happy working in all the major cloud providers: AWS, GCP & Azure
With a You Build It, You Run It mindset, you will have intimate knowledge of our products from code commit through to production operation
Supporting production systems with monitoring tools such as Datadog
Strive for stable systems observability
You will champion our principles, fuel a growth mindset by getting involved in communities and help improve our engineering culture
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
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.

How we rate this

Senior Product Engineer at Prolific rates 25 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.

Classification

Little AI. AI is not part of the work.

●●●● Builds AI80 to 100
●●●○ Works on AI60 to 79
●●○○ Uses AI40 to 59
●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.

Key facts

Senior Product Engineer is an open job at Prolific.
Level rates this role AI Level 1 of 4: Little AI.
The role is based in Remote, UK and is marked remote.
The job was posted on October 23, 2026.
Seniority: senior.
Applications are handled by Prolific. Apply on Prolific

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

Full StackNosqlEvent Driven ArchitectureTest AutomationTypeScriptJavaScriptPythonAWS

Questions you could be asked

Tell me about a project where full stack was part of your work. What did you do?
Tell me about a project where nosql was part of your work. What did you do?
Tell me about a project where event driven architecture was part of your work. What did you do?
Tell me about a project where test automation was part of your work. What did you do?
Walk me through how you've used TypeScript in your day-to-day work.

Adapt your resume

List these exact terms on your resume: Full Stack, Nosql, Event Driven Architecture, Test Automation, and TypeScript. An applicant tracking system matches the wording, not the idea.
Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.

Want an expert to read your CV for this job?

Free. Send your CV and the role you want next. We reply by email within 2 to 4 business days.

Get a free CV review Get your CV rewritten Check your resume with the ATS resume checker

Get new remote software engineering jobs by email

One email a week with the new remote software engineering jobs, each rated for how much AI is in the work. No recruiter spam, unsubscribe in one click.

Free. One email a week. Unsubscribe in one click.