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

Senior Software Engineer

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

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

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

Next steps

1. Visit our website
2. Click 'Talk to Jack'
3. Talk to Jack so he can understand your experience and ambitions
4. Jack will make sure Jill (the AI agent working for the company) considers you for this role
5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction
6. If not, Jack will find you excellent alternatives. All for free.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

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