Senior Product Engineer
- Level
- Senior
- Work type
- Remote · UK only
Not stated in the posting: salary, visa.
Open. First seen 23 October 2026.
About the role
Senior Product Engineer
Engineering
Prolific's standard text
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
Prolific's standard text
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
External Handbook
Website
Youtube
Prolific's standard text
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.
What this role asks for
Particular to this role
Agile · Azure · NoSQL · Test Automation
Rare in Prolific's other 19 open postings.
In most of Prolific's ads
Python
Named in most of its open postings, whatever the role.
70% of this description is written for the role. The rest is Prolific's standard text, folded away below.
Compared with Prolific's other open jobs.
The team: Engineering HIRES STEADILY
This role is one of 6 open in Engineering. 2 were posted in the last 30 days and the oldest in August: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
AWS (6 of 6), Datadog (6 of 6), GCP (6 of 6), Kubernetes (6 of 6), Python (6 of 6), TypeScript (6 of 6), Celery (5 of 6)
OTHER ROLES ON THIS TEAM
- Cloud Platform Engineer posted Oct 7
- Senior Product Engineer posted Sep 23
- Senior Product Engineer II posted Sep 8
- Engineering Manager posted Aug 10
- Senior Product Engineer posted Aug 4
From the team and dates on Prolific's own job board.
Posting history
Reposted 2 times since 17 March 2026: a posting for this role in Remote, UK was taken down and the role was posted again.
- 23 October 2026 – open (this posting)
- 20 September 2026 – closed 23 October 2026
- 28 May 2026 – closed 14 June 2026
- 17 March 2026 – closed 6 August 2026
Salary context
38 other open postings titled Senior Product Engineer state a salary: median USD 170,000 to USD 232,500 a year.
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