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# Principal Backend Engineer

- **Company:** Cultureat Synthesia
- **Location:** London, UK (Remote available)
- **Salary:** £200,000.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Software as a Service, Collaborative Software, Python (Programming Language), ReactJS, Backend, Data Pipelines
- **Published:** August 18, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/x/44359626/

## About the Role

(10) years of experience as a software engineer, at least 2 at the Senior Staff/Principal level (L7+), Previous leadership experience in driving projects across multiple teams (50+ Engineers).Experience in a high-performing engineering Org that is operating at scale. This could come from a scale-up environment or a more established organization recognised for building and shipping with a great engineering culture.An ability to work across the stack, with deep knowledge on server side and all things back end related.Relevant engineering experience for a team building an enterprise-grade SaaS product. Extra points for delivering AI-powered video generation product, billing systems, experimentation platforms, video delivery systems, online editors, real-time collaboration and so on.Strong alignment with commercial success.Why join us?We're living the golden age of AI. The next decade will yield the next iconic companies, and we dare to say we have what it takes to become

## Description

stability up? Generally steering BE in the right direction. In the near future, standardising things across all of Engineering and bringing R&D teams (another 40 Engineers and Researchers) closer.You will have ownership of projects that span quarters, requiring you to have the ability to break a problem down into small steps that can be delivered and validated iteratively.You will evaluate your own work, leveraging our data pipeline and frameworks that we have established to understand the impact your features have on our commercial objectives and pivoting where necessary.You will consider the long-term direction of Engineering, making sure that we are developing the engineering capabilities that will allow us to stay ahead of the challenges we are likely to encounter in 12-18 months' time.You will work end-to-end, from our client application written in React to our monolithic backend written in Python, and lead projects that span across multiple teams.What we're looking for, At least ten