Senior Software Engineer (Infrastructure) at well-funded Series B AI startup

Senior Software Engineer

Company Description: Well-funded Series B AI startup

Job Description: You will architect and build the backend for high-performance systems managing billions of data points. This role involves scaling infrastructure to handle massive volumes of unstructured data for machine learning workflows. Working with a veteran team, you will ensure the platform remains fast and reliable as the company enters a stage of hyper-growth.

Location: London, UK

Why this role is remarkable

• Join a high-performing engineering team including ex-founders and veterans from elite tech firms
• Impact the frontier of multi-modal AI by building the core infrastructure for data curation and indexing
• Benefit from a culture of high autonomy, end-to-end ownership, and rapid career progression during expansion

What you will do

• Design and maintain performant systems using a modern stack including Python, Rust, and Clickhouse
• Take full ownership of projects from initial architectural decisions through to deployment and monitoring
• Solve complex scaling challenges related to querying and manipulating massive datasets at global scale

The ideal candidate

• Extensive experience building and maintaining large-scale, reliable backend systems from the ground up
• Deep technical proficiency with PostgreSQL and column-oriented analytics systems like Clickhouse
• A builder mindset that thrives on solving technical ambiguity with simple, maintainable, and robust solutions

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