Valyu is the knowledge infrastructure platform for AI agents. We help knowledge work companies transform web and proprietary information into structured, attributed context that powers reasoning, research, and decision-making. Through our search and deep research infrastructure, AI systems gain real-time access to trustworthy, domain-specific knowledge at scale. As search becomes the core primitive of AI, Valyu is building the foundation that enables agents to discover, understand, and synthesise information across thousands of sources.
Jack helps you find life-changing roles at companies like 
Valyu
Jack scans 15 million jobs daily and introduces you directly to hiring managers.
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Open roles at Valyu
Talk to Jack and he’ll help you get considered for the roles below, or anything else that fits what you’re looking for.
Full Stack Engineer
London, United Kingdom£55k-£95k + Equity
Valyu is hiring a Full Stack Engineer in London to own dashboards and agent runtimes using Next.js, Supabase, and LLM-driven workflows. This is a stealth-mode startup where search is becoming a core primitive for AI knowledge access. The role offers meaningful ownership at the frontier of information retrieval, with equity on offer.
Posted 2h ago
Infrastructure Engineer
London, United Kingdom£65k-£95k + Equity
As an Infrastructure Engineer at Valyu, you'll own the storage, retrieval, indexing, and serving layer at petabyte scale. Valyu is a London startup building the stack that makes knowledge accessible for how AI agents actually work. In Rust and Python, you'll take critical systems from first principles to production-ready code in a single week on a lean team where infrastructure is the product.
Posted 2h ago
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.I get to know what you’re great at, then find roles you’d never find yourself.
I recruit from Jack’s network and make the intro when I spot a great match.I recruit from Jack’s network and make the intro when I spot a great match.
Everything you need
to land your next job
New matches
just now
Principal Engineer
93%Payments Infra · Remote · $320–400k
High-reliability systems
Head of Engineering
96%Series B Healthtech · London · £160–220k
Scaling eng orgs 10–40
Engineering Lead
91%AI Safety · SF · $300–380k
ML infra + team leadership
Staff Engineer
94%Frontend Platform · Remote · $280–350k
Next.js + edge infra
Senior Backend Engineer
98%Digital Banking · London · £130–180k
Distributed systems + fintech
Job Search On Autopilot
Jack gets to know you through a conversation and searches 15 million jobs daily. You tell Jack yes or no, and he gets smarter about what you’re looking for with each response.
0:00
JackTell me about a technical migration you led under time pressure.
0:02
I led a six-week migration of 40 services in three phases. We aligned stakeholders early and shipped two days ahead with zero downtime.
Confidence score
Strong: Clear structure, specific metrics
Improve: Add stakeholder conflict detail
Mock Interviews
Run a mock interview with Jack and get specific feedback on your stories, clarity, and answers to the hard questions. You’ll walk in with a tighter narrative and fewer surprises.
Salary Benchmark
Market 50th$155k
Your target$105k
Market 90th$220k
Base
$155k
Equity
$40k
Bonus
$15k
Based on Senior Engineer roles in London, Series A-B startups.
Salary Benchmarking
Jack shows you what ‘good’ looks like for your role, level, and location based on thousands of real jobs to inform your negotiation.
0:00
JackI’ve been a senior engineer for 3 years. Should I push for Staff or move into management?
That’s the right question to ask at this stage.
Let’s compare both paths: compensation, day-to-day work, and long-term fit.
First, what energised you more this year: technical problem-solving or people leadership?
Career Clarity Coaching
Jack helps you get clear on what you want next, what you’re great at, and what kind of work will actually fulfil you. In one coaching call, you’ll shape your career plan with Jack’s help.
0:00
JackCall Ended0:00
Employer
“We can offer $128,000 base salary.”
Jack
Below P50. Counter at $148k: they’ve run 4 rounds, they won’t walk.
You said
$148,000
Accepted
+$20,000Salary Negotiation Coaching
Jack helps you build a negotiation plan with data and specific language you can use. Know when to push, what to ask for, and how to respond without damaging the relationship.
Introduction
Jack made an introduction
Marcus, CTO at Acme, wants to chat about the Founding Engineer role. He liked your distributed systems experience.
Founding Engineer$180–240kLondon
Accept Introduction
Skipped applicationDirect to CTO2 day process
Introductions to Hiring Managers
When Jack finds a match in Jill’s network, he introduces you directly to the hiring manager. No applications. No waiting. Warm introductions to people who already want to meet you.
The numbers.
Professionals working with Jack
15M
Jobs scanned every day
30hrs
Saved on average vs traditional job searching