Executive Assistant

Keystone is a premier consulting firm that brings together economics, technology, and strategy to solve complex challenges for the world’s leading technology firms and global brands. We work on defining the future of the technological ecosystem, advising on competitive strategy, building and deploying large-scale algorithms and supporting high-stakes legal and regulatory matters.

At Keystone, everything is an opportunity for creativity. We challenge conventional thinking, push boundaries, and drive transformative outcomes. The pace is fast, the bar is high, and the impact is real.

The Opportunity

We are looking for an exceptional Senior Executive Assistant to provide dedicated support to our Founder and CEO This is not a traditional EA position—it requires sound judgment, a proactive mindset, natural curiosity and the ability to anticipate needs in a dynamic, high-growth environment.

This role is about more than just organisation—it’s about leading from behind the scenes. You will need to stay three steps ahead, helping our CEO maximise his time and impact. The ideal candidate is highly responsive, adaptable, and thrives in ambiguity.

What You’ll Do

• Seamlessly manage our CEO’s schedule – prioritising what’s essential, resolving conflicts, and ensuring efficiency in his working rhythm.
• Act as a trusted gatekeeper – using good judgment to filter information, handle inbound requests, and maintain confidentiality.
• Proactively manage workflows – organising high volumes of communication, ensuring follow-ups happen, and flagging critical issues before they arise.
• Facilitate smooth decision-making – knowing what requires immediate attention, what can wait, and what can be handled independently.
• Oversee travel and logistics – ensuring seamless coordination of meetings, events, and itineraries with minimal disruption across multiple timezones.
• Support broader initiatives – assisting with leadership projects, client engagement, and operational execution where needed.

What It Takes To Succeed

• Judgment & Proactivity – You don’t wait to be told what to do. You take initiative, solve problems, and anticipate what’s needed before it becomes an issue.
• Flexibility & Adaptability – While working hours will follow a UK schedule, some responsiveness outside standard hours is required for high-priority matters. You need to be comfortable operating in a fast-moving environment where priorities shift.
• Organisation & Execution – You keep things moving, manage multiple priorities seamlessly, and ensure nothing falls through the cracks.
• Resilience & Independence – This role is highly autonomous. You need to be comfortable working closely with senior leadership while forging strong connections with the wider team.
• Communication & Professionalism – You represent Keystone in every interaction. Clear, concise, and professional communication is key.

The Logistics

• Location: London based. Some flexibility is required on office location in Bank/Chelsea.
• Full-time, permanent role with the autonomy to structure your week while maintaining responsiveness.
• Support structure: You will receive support from the leadership team and EA colleagues will provide onboarding and coaching to ensure success.

Why Join Keystone?

We are a fast-growing, high-impact firm, expanding at pace. This role is pivotal to that growth and offers the opportunity to work alongside top-tier leadership who are in a business shaping the future of the tech and consulting landscape.

If you’re looking for a role that will challenge you, push your skills to the next level, and put you at the heart of a high-growth, high-performance environment—this is it.

UK Salary Range: £60,000-£65,000, plus an annual discretionary bonus, pension contribution, and competitive benefits package. Actual compensation within the range will depend upon the level the individual is hired into based on their skills, experience, qualifications.

At Keystone we believe diversity matters. At every level of our firm, we seek to advance and promote diversity, foster an inclusive culture, and ensure our colleagues have a deep sense of respect and belonging. If you are interested in growing your career with colleagues from varied backgrounds and cultures, consider Keystone Strategy.