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Sr. Executive Assistant

Mozilla· Office of CEO
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full-timePosted 5d ago

About the role

Executive Assistant role supporting three VPs within Mozilla's Core Services Leadership Team (VP, Engineering; VP, Information Technology; VP, Security). Serves as operational backbone, managing calendars, travel, communications, and cross-functional coordination with discretion and proactive execution.

Responsibilities

  • Act as a key point of contact between executives, their teams, and internal/external partners, ensuring timely communication and follow-up.
  • Handle sensitive information with the highest degree of discretion.
  • Manage a wide range of administrative tasks including calendar management, domestic and international travel coordination, expense reports, etc.
  • Support execs across US time zones.
  • Coordinate internal and external meetings.
  • Plan logistics and events for team and exec offsites and work weeks.
  • Build relationships within the organization. Establish and maintain trusted working partnerships through regular communication, a clear understanding of stakeholder needs, and consistent follow-through.

Qualifications

  • 5+ years of administrative experience in a technology company and multi location environment working on administrative tasks for 1 or more executives (e.g., travel management, expense reports, calendar management, etc.).
  • Experience in coordinating with sensitive, high stakes external teams.
  • Attention to detail, ability to manage ambiguity, and foster a team culture.
  • Strong written and verbal communication skills.
  • Great at taking initiative and solving problems.
  • Experience with Google Suite.

Benefits

  • Generous performance-based bonus plans to all eligible employees - we share in our success as one team
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
  • Quarterly all-company wellness days where everyone takes a pause together
  • Country specific holidays plus a day off for your birthday
  • One-time home office stipend
  • Annual professional development budget
  • Quarterly well-being stipend
  • Considerable paid parental leave
  • Employee referral bonus program
  • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)
Last updated Oct 21, 2026. Interested? Apply on the company site.

About Mozilla

Internet for people, not profit

Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.

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