Executive Assistant to Co-Founder & CEO AI Scale-Up | London

Second Brain Talent is delighted to partner with an ambitious AI scale-up tackling one of financial services' biggest headaches: operational drag.
As the business enters its next phase of growth, it is looking for an exceptional Executive Assistant to become the trusted extension and operational co-pilot to its Co-Founder & CEO.
The business has scaled rapidly over the past year and is on track to double in size over the coming 12 months, while continuing to build out its wider Office of the Founders.
You will work primarily 1:1 with a forward-thinking, highly driven Co-Founder & CEO who is building at pace and values focus, ownership and high standards. This is a role for someone who enjoys being close to decision-making, thrives on momentum and wants to play a meaningful part in a company's growth story.
As this is the CEO's first Executive Assistant hire, you will have a rare opportunity to shape the role from the ground up. You will help establish the working rhythms, systems and ways of operating that allow a busy founder to stay focused on the highest-value work. You will not be stepping into somebody else's legacy processes; you will be helping build the blueprint for an exceptional founder–EA partnership.
The successful candidate will sit at the centre of a collaborative Office of the Founders, working alongside three co-founders, a Chief of Staff, Head of Finance and incoming Founders' Associates. While your primary partnership will be 1:1 with the CEO, you will also support the wider founder office around team events and off-sites.
You will create structure around a busy founder, protect their time, anticipate what is coming, keep momentum behind key priorities and remove operational noise from their day.
Key Responsibilities
Calendar & time protection: Take ownership of a complex and fast moving diary, proactively structuring weeks, protecting focus time and creating clear meeting rhythms.
Meeting preparation & follow-through: Prepare agendas, briefing materials, meeting notes and follow-up actions, ensuring important decisions and commitments move forward.
Global Travel Management: Manage frequent international travel end to end, including detailed itineraries, logistics and changes.
Founder-office coordination: Support communication, stakeholder coordination and priority track...