Jack helps you find life-changing roles at companies like 
Confidential company
Jack finds your next role, then helps you land it. Free.
He will scan 15M jobs while you sleep, and email you the best ones. Respond back what you think, to refine his job search. He will then coach you to land the role. Mock interviews, salary benchmarking and coaching calls.
Confidential company
Jack keeps tabs on roles at Confidential company. Tell Jack what you're looking for and he'll share opportunities here as they open.
How Jack & Jill work together
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.
JackTell me about a technical migration you led under time pressure.
I led a six-week migration of 40 services in three phases. We aligned stakeholders early and shipped two days ahead with zero downtime.
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
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.
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.
JackEmployer
“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
Salary 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.
Accept Introduction
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
Jobs scanned every day
Saved on average vs traditional job searching