Senior Executive Assistant; Revenue - NYC

New York, NY

Hybrid Schedule (M/F remote, T/W/TH in-office)

Senior Executive Assistant

Revenue Team

At Magnite, we cultivate an environment of continuous growth and collaboration. Our work impacts what millions of people read, watch, and buy, and we’re looking for people to help us tackle that responsibility with creativity and focus. Magnite (NASDAQ: MGNI) is the world’s largest independent sell-side advertising platform. Publishers use our technology to monetize their content across all screens and formats including CTV / streaming, online video, display, and audio.

Our tech fuels billions of transactions per day!

Magnite is seeking a polished, high-functioning Senior Executive Assistant to provide dedicated support to our President, Revenue. In this role, you will work in close coordination with the Chief of Staff to ensure the President is prepared, punctual, and positioned for success. As a member of the Revenue organization, one of the largest teams at Magnite, you will support a leader overseeing a global footprint across the Americas, EMEA, and APAC.

We are looking for someone who takes immense pride in the art of complex travel logistics, meticulous calendar management, and providing a world-class experience for our global clients.

• Execute Complex Calendar Management:
  Serve as the primary gatekeeper, orchestrating a high-volume calendar across multiple global time zones. You will partner with the Chief of Staff to ensure the President’s time is strictly allocated to the highest business priorities.
• Coordinate High-Frequency Global Travel:
  Manage end-to-end travel for a Principal who is frequently on the move. You will handle complex international itineraries, visa requirements, and real-time troubleshooting for last-minute changes. Some travel with the President may be required.
• Own Expense & Financial Administration:
  Manage high-volume expense reporting with meticulous attention to detail, ensuring all client entertainment and travel expenses are coded correctly and submitted on time.
• Lead "White-Glove" Client Hospitality:
  Act as the point of contact and onsite greeter for high-profile clients visiting our NYC headquarters. You will assist with planning client entertainment, including securing exclusive dining reservations to managing catering and logistics for onsite events.
• Onsite Presence:
  Maintain a strong presence in our NYC office (Tuesday–Thursday) to manage the physical needs of the President’s office and provide a welcoming experience for visiting guests. You will also partner with People, IT, Facilities, and other teams on company-wide events and initiatives such as parties/celebrations, team training sessions, and all-hands coordination.

• 6+ years of experience supporting C-suite executives, ideally within a global sales or revenue organization.
• Proven experience working effectively alongside a Chief of Staff or a broader leadership team. You understand how to divide and conquer to support a high-demand Principal.
• A deep understanding of the New York City hospitality landscape and a passion for creating seamless, high-end experiences for external partners.
• You are a "black belt" in Google Workspace (Calendar, Docs, Sheets) and have extensive experience with travel/expense tools like Concur.
• Excellent written and verbal communication skills, with the ability to engage with internal and external stakeholders at all levels of an organization.

• Comprehensive Healthcare Coverage from Day One
• Generous Time Off
• Holiday Breaks and Quarterly Wellness Days
• Equity and Employee Stock Purchase Plan
• Family-Focused Benefits and Parental Leave
• 401k Retirement Savings Plan with Employer Match
• Disability and Life Insurance
• Cell Phone Subsidy
• Fitness and Wellness Reimbursement

We believe collaboration is essential to success. Magnite’s hybrid schedule includes two days worked remotely (Monday and Friday) and three days on-site (Tuesday, Wednesday and Thursday). Our offices provide catered lunches, beverages, snacks, training and development, and office events to support your work week. We also understand you have…