Office Manager & EA to CEO Dynamic Start-Up


  London, Mayfair
Permanent


£55,000 - £65,000

This is a rare opportunity to join an ambitious UK defence start-up at a pivotal stage of growth. If you're an ambitious, high-performing Executive Assistant looking for your next challenge in a dynamic, high-growth, high-impact environment, we'd love to hear from you. Based in a prestigious Mayfair office, you'll work at the heart of a business operating in one of the world's most high-stakes, fast-moving and dynamic sectors, supporting the CEO and C-suite while helping shape the foundations of a rapidly scaling organisation.

This is far more than a traditional EA role. You'll become a trusted right hand to the CEO, ensuring every day runs seamlessly while playing a key role in building a professional, high-performing workplace. If you enjoy variety, thrive under pressure, and take pride in making the impossible look effortless, we'd love to hear from you.

As Executive Assistant to the CEO, you'll take ownership of executive support, ensuring the CEO is always prepared, informed and exactly where they need to be. You'll manage complex diaries, coordinate meetings, prepare briefing packs, organise travel and logistics, handle confidential documentation including NDAs, and keep priorities moving at pace.

Alongside executive support, you'll help oversee the smooth day-to-day running of our Mayfair office, supporting its continued development as the company grows. From facilities coordination and supplier management to welcoming visitors and creating an exceptional working environment, you'll play a vital role in the business's success.

You'll also support onboarding, HR administration, internal events, stakeholder meetings, C-suite expenses and finance administration, as well as coordinating restaurant and private members' club bookings.

As a growing business, everyone rolls up their sleeves. No task is too big or too small, and you'll enjoy being part of a collaborative team where every contribution matters.

We're seeking an experienced, proactive Executive Assistant who combines exceptional organisational ability with sound judgement, professionalism and absolute discretion.

Desired experience:

  • At least 3 years' experience as an Executive Assistant supporting senior executives.
  • Outstanding organisational and prioritisation skills.
  • The confidence to take ownership and anticipate what's needed before being asked.
  • Excellent communication and interpersonal skills.
  • A polished, professional approach with impeccable attention to detail.
  • The ability to remain calm and effective in a fast-paced, constantly evolving environment.
  • Flexibility, adaptability and a genuine team-first attitude.

This is a fabulous opportunity to join a business at the forefront of UK defence innovation, working alongside senior leaders on meaningful, mission-critical work. You'll have genuine responsibility, significant exposure to executive decision-making, and the chance to help build an organisation from the ground up.

*We appreciate every application but are unable to respond individually to every one, due to the high volumes we receive*

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Reference: SC11791

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