Executive Assistant, Marketing
Los Angeles, California
Hybrid Schedule (M/F remote, T/W/TH in-office)
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.
About the role
Magnite is seeking an Executive Assistant, Marketing to help keep our Marketing team running smoothly. This role, which reports to the Chief Marketing Officer, combines executive support with hands-on operational ownership, with a strong focus on team operations. You’ll spend approximately 60% of your time on team operations and 40% on executive support (depending on seasonality).
You’ll be successful in this role if marketing spend is clearly tracked and well-managed with variances flagged early; vendor and purchasing workflows run on time with minimal rework; and marketing leaders are set up for success with clear agendas, seamless travel coordination, and timely expense reporting.
In this role you will:
Team Operations Support (approx. 60%)
Own budget and spend tracking, monitor pacing, and flag variances early for review
Manage procurement and vendor workflows, including POs, invoices, accruals, and Accounts Payable coordination
Coordinate logistics for team off-sites, all-hands, and events (venue/catering/scheduling) with strong attention to detail
Support special projects such as quarterly planning logistics, vendor renewals coordination, process improvements, and cross-functional coordination with People/IT/Finance
Executive and Leadership Support (approx. 40%)
Manage calendars and meetings across time zones while keeping the team’s operating cadence running smoothly, including leadership and our regular team meetings
Coordinate travel for marketing leadership, including last-minute changes
Manage expense reporting and reconciliation for marketing leadership
Prepare weekly agendas to help leaders focus on the highest-impact work
We’re looking for someone with:
2+ years of experience as an Executive Assistant (or similar role) supporting senior leaders (VP/C-level leaders) in a fast-paced environment
Strong operational rigor, with experience owning trackers, workflows, and recurring team cadences (budget/spend, procurement, onboarding, events)
Proven project coordination skills, with the ability to manage logistics, timelines, and stakeholders for team-wide initiatives
Experience with budget tracking, expense reconciliation, and/or procurement tools (e.g., Coupa, Concur, Oracle) is highly preferred
Highly organized and detail-oriented, with sound judgment and the ability to prioritize competing requests
Proactive, solutions-oriented, and comfortable navigating ambiguity and shifting priorities
A collaborative, service-oriented approach with the ability to build strong relationships across People, IT, and Finance
Proficiency in Google Workspace (Gmail, Docs, Sheets, Slides) and an aptitude for learning internal systems quickly
High integrity and discretion when handling sensitive information
Perks and Benefits:
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
Company Culture:
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 appointments, families, hobbies, and other commitments. Magnite strives to maintain a healthy work/life integration for all employees so you can bring your best every day - both at work and at home.
Community Service and Volunteer Events
Company-Matched Charitable Contributions
Wellness Coach and Mental Health Support
Career Development Initiatives and a Career Growth Framework
Culture and Inclusion Programs
Bonusly Peer-to-Peer Recognition Program
About Us
The world's leading agencies and brands trust our platform to access brand-safe, high-quality ad inventory and execute billions of advertising transactions each month. Anchored in bustling New York City, sunny Los Angeles, mile-high Denver, historic London, and down under in Sydney, Magnite has offices across North America, EMEA, LATAM, and APAC.
In CA, the hourly pay range for this position is: $33.00 - $53.00 per hour in addition to company equity (NASDAQ: MGNI).
For Los Angeles-based applicants:
Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.
The material job duties of this specific job position for which Magnite reasonably believes that a criminal history may have a direct, adverse, and negative relationship include:
Having access to the Company’s Confidential Information or trade secrets including data related to customers, clients, vendors, business partners, or suppliers
Work with cross teams to access datasets, databases, formulas, algorithms, tools, products, prototypes, systems applications, and technologies in any stage of development
Magnite is an Equal Opportunity Employer and does not discriminate against applicants due to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, sexual orientation or any other federal, state or local protected class.
Our Commitment: We aim to incorporate a wide range of voices into our Magnite culture, cultivating an environment where employees feel welcomed, cared for, and encouraged to freely share ideas. We are committed to employee growth, collaboration, inclusion, and innovation. We invest in Magnite’s local communities. We seek talent from all backgrounds to champion corporate values of seeing the big picture and being catalysts of change.
Want to learn more about us?
Check out our blog for Magnite announcements and Ad Tech industry news!
Recruiting Agency Notice
Magnite does not accept agency resumes and is not responsible for any fees related to unsolicited resumes.
Top Skills
What We Do
Together, we power advertising that enables billions of people to stay informed, entertained, and connected. We introduce them to new ideas, products, and services that make their lives better. And we help media owners of all sizes realize their full potential.
That’s a lot — that’s the power of advertising. But it’s only possible with great technology. And that’s where Magnite comes in.
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, online video, display, and audio. Our tech fuels billions of transactions per day!
Why Work With Us
At Magnite, our work impacts what millions of people read, watch, and buy. We strive to cultivate an environment of continuous growth and collaboration. We’re seeking out individuals who share an alternative perspective, challenge the status quo, and aren’t afraid to raise the bar!
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Magnite Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
Magnite’s hybrid schedule includes two days worked remotely (Monday and Friday) and three days on-site (Tuesday, Wednesday and Thursday) in all offices. Our offices provide daily lunches, beverages, snacks, training, development, office events.
