Executive Assistant – Support Leaders in London

About the role

Support senior leadership by managing calendars, coordinating meetings, and handling administrative processes. Work closely with cross‑functional teams and external partners in a fast‑growing, in‑person startup environment.

Key responsibilities

• Proactively manage calendars, including sales, partnership meetings, discovery calls, and legal contract negotiations.
• Ensure meeting effectiveness by sending preparation and follow‑up materials such as sales agreements and legal documents.
• Plan and execute internal events (in‑person and virtual), including team offsites, trainings, and travel weeks.
• Support external events like happy hours, sporting events, leadership market tours, and other engagements.
• Establish new and improve existing administrative systems and processes while helping build the founding Sierra admin team.

Required profile

• 5+ years of Executive Assistant or similar experience.
• Ability to build relationships and partner effectively with cross‑functional teams and external partners.
• Excellent time‑management skills, quick task‑shifting, and anticipation of others' needs.
• Strong organization, analysis, and prioritization of workflows, often leveraging data.
• Willingness to work in the London office four days per week and travel quarterly with leaders.
• Advanced proficiency with Google Suite and Slack.

Required skills

• Google Suite
• Slack

What we offer

• Flexible (unlimited) paid time off.
• Medical, dental, and vision benefits for you and your family.
• Life insurance and disability benefits.
• Retirement plan (dependent on country of employment).
• Parental leave.
• Fertility and family‑building benefits through Carrot.
• Lunch, snacks, and coffee.
• Discretionary benefit stipend.
• Free alphorn lessons.