Infrastructure Engineer (£65k–£95k + Equity) at Valyu

Overview

Salary

Company Description

Job Description

London, UK

• Why this role is remarkable
• Work at the frontier of AI infrastructure where your code defines how agents access and process world knowledge at a petabyte scale.
• Join a lean, highly technical team of nine in London backed by over £2M in seed funding, offering immense ownership and minimal abstraction.
• Experience a true renaissance in information retrieval, moving from first-principles research to production-ready systems that handle indexing and serving in real-time.

What You Will Do

• Own the end-to-end architecture of critical layers, including search and storage engines, data lakes, ingestion pipelines, and ML serving systems.
• Make foundational technical decisions on storage formats, query algorithms, and scheduling models that balance petabyte-scale latency against operational costs.
• Engineer high-concurrency systems using Rust and Python, operating them on AWS and GCP with tools like Kubernetes, Terraform, and advanced observability.
• The ideal candidate
• A mid-level engineer with at least 3 years of experience shipping and operating systems-intensive infrastructure or distributed systems in production environments.
• Highly proficient in Rust and Python, with a background in database internals, search infrastructure, or scaling ML systems like vector databases and RAG.
• A relentlessly resourceful builder who has managed cloud workloads on AWS/GCP and possesses the technical judgment to make long-term architectural trade-offs.
• 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.
• How does this work?
• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
• 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.
• Give Jack a spin!
• You could land this role.
• If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.