Junior Software Engineer jobs in United Kingdom

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.

We're looking for Software Engineers with a product mindset to join our growing engineering team. You will contribute to the design, development, and support of our product, working closely with more experienced engineers while continuing to build your technical depth and breadth. This role is ideal for someone who enjoys owning problems end-to-end, building customer focused software, learning from others, and growing their impact over time as we work to revolutionise research.

• Good understanding of modern web applications and architecture design patterns
• Can translate business concepts into core software domain models
• Experience working with NoSQL databases
• Working knowledge of Python or a similar backend language
• Familiarity with event driven or asynchronous systems
• Hands on experience using at least one major cloud provider such as AWS or GCP
• Understanding of the importance of code quality and automated testing
• Experience supporting applications in production environments
• Exposure to monitoring and observability tools such as logging, metrics, or tracing
• Experience working in a collaborative engineering team with established practices
• 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

• Work as part of a cross functional, stream aligned team alongside engineers, a product manager, and a designer
• Contribute to the design, implementation, and maintenance of product features
• Use agile development practices to plan and deliver work as a team
• Write clean, maintainable code with support from senior engineers and tech leads
• Collaborate with other teams and stakeholders to understand requirements and user needs
• Help to support production systems and respond to incidents when required
• Learn how our systems operate from development through to production
• Use monitoring and alerting tools such as Datadog to help maintain system reliability
• Improve system observability and reliability over time
• Actively participate in team discussions, retrospectives, and knowledge sharing
• Continuously develop your technical and product understanding
• Grow your scope and impact within the team and organisation over time

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 behavioural 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 behaviours 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 breadth and 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.

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.