She will pick the best candidates from Jack's network.
The next step is to speak to Jack.
Job Title
Senior Software Engineer
Salary
Not Disclosed
Company Description
Caura.com is an £8.8M-funded London startup backed by Lloyds Banking Group and Jaguar Land Rover’s InMotion Ventures, building the UK's all-in-one car management platform.
Job Description
You will own and elevate Caura.com's backend platform, architecting scalable distributed systems that serve millions of UK drivers and major partners like Lloyds and Motorway. Working in a small team of experienced startup veterans, you'll bridge the gap between product vision and secure, event-driven infrastructure using TypeScript, Node.js, and AWS.
Location
London, UK
Why this role is remarkable
What you will do
The ideal candidate
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?
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.
#LI-JANDJLIVE
]]>She will pick the best candidates from Jack's network.
The next step is to speak to Jack.
Job Title
Principal Systems Engineer
Salary
£150k-£195k + Equity
Company Description
Harmonic Security Inc. is a ~$25M Series A cybersecurity startup backed by Next47 and Ten Eleven Ventures, defining the AI security category. They build zero-touch data protection platforms that allow enterprises to safely adopt AI tools by protecting sensitive data at the endpoint in real time with sub-500ms inference.
Job Description
As a Principal Systems Engineer at Harmonic Security Inc., you will lead the development of low-level, security-critical endpoint agent software. Operating across Windows, macOS, and Linux, you’ll build high-performance Rust components that monitor and protect data movement. This is a mission-critical role defining how enterprises secure their AI-driven future at the OS level.
Location
London, UK
Why this role is remarkable
What you will do
The ideal candidate
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?
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.
#LI-JANDJLIVE
]]>She will pick the best candidates from Jack's network.
The next step is to speak to Jack.
Job Title
Founding Engineer
Salary
$150k-$250k + Equity
Company Description
Generalcatalyst.com is a $6M seed-funded YC S25 startup led by General Catalyst, building the essential identity and communication layer for AI agents. Backed by industry legends like Paul Graham and Dharmesh Shah, they are scaling rapidly, processing over 100M emails for a user base that doubles every two weeks.
Job Description
As a Founding Engineer, you will build the core primitives that allow AI agents to communicate and operate as independent entities. You'll design high-throughput email infrastructure and APIs, bridging cutting-edge LLM capabilities with foundational messaging protocols. This is a systems-heavy role where you'll own projects end-to-end for a rapidly scaling user base.
Location
San Francisco, USA
Why this role is remarkable
What you will do
The ideal candidate
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?
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.
#LI-JANDJLIVE
]]>