Join a category-defining AI startup as a foundational hire for their London headquarters. You will support the executive team and build the office operating system from the ground up. This high-impact role blends executive assistance with office management, ensuring leadership efficiency and maintaining a high-performance culture during a period of hypergrowth.
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Learn about Jack
Office Manager and Executive Assistant at Model ML
We are seeking a world-class Office Manager and Executive Assistant to build the operational backbone of a London headquarters for a category-defining AI startup. Supporting senior leadership across London, NYC, and San Francisco, you will manage high-stakes calendars, own office logistics, and shape the culture of a global team. This is a foundational role for an ambitious operator who thrives in high-intensity, hypergrowth environments and wants to define operational excellence from day one. If you have 5+ years of experience and a bias for action, join us in this career-defining opportunity.
About this role
Role overview
About the company
AI75-100 employeesLondon, United KingdomSeries A (VC-backed)
Model ML offers an AI-powered workspace built specifically for the financial services industry, including private equity firms, investment banks, and corporate development teams. The platform automates complex and repetitive financial research tasks such as analyzing deal documents, extracting comparable transaction data, market mapping, commercial due diligence, and generating tailored insights. By integrating with sources like PitchBook and Crunchbase, and leveraging advanced AI for data extraction and analysis, Model ML enables finance professionals to conduct faster and more precise due diligence, benchmarking, and market intelligence. The platform emphasizes auditability and compliance, allowing users to control data provenance and source selection. Founded in 2023, Model ML operates from San Francisco and London, serving clients across the financial sector.
Backed by FT Partners, Y Combinator, QED Investors, 13Books Capital, Latitude, LocalGlobe.
What you'll do
What you will do
- Manage complex leadership calendars and communications, preparing meeting materials in Notion to optimize executive time and impact.
- Build and run the London office operating system, managing vendors, logistics, and coordinating high-stakes global team onsites and leadership offsites.
- Drive recruitment operations by handling interview coordination and partnering with the People team to lead onboarding for new London hires.
Who you are
Who this is a fit for
- Proven track record with at least 5 years of experience in executive support, office management, or operational roles within fast-paced environments.
- Expert organizational skills with a mastery of documentation tools like Notion and the ability to anticipate needs before they arise.
- Exceptional communication and judgment, capable of handling sensitive information with high discretion while operating with a bias for action.
Why this role
Why this role is remarkable
- Foundational hire opportunity to shape the culture and operational rhythm of a global AI company's London headquarters from day one.
- Direct partnership with senior leadership in a high-intensity, hypergrowth environment with significant visibility across global offices in New York and San Francisco.
- Ownership over critical workflows, from executive calendar optimization to designing five-star onboarding experiences and category-defining culture-building rituals.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.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.
I recruit from Jack’s network and make the intro when I spot a great match.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.
Meet Jack
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
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.