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Executive Assistant to CEO

Executive Assistant to CEO

Job Locations 
US-NY-New York
Administrative Support

More information about this job


MediaMath’s strength is in numbers.  Our technology analyzes 200 billion customer opportunities daily– more volume than the top 10 stock exchanges in the world, combined.

Over 700 Mathletes in 16 global offices are trusted by two-thirds of the Fortune 500 and partner with thousands of marketers to ensure brands connect with right audiences, in the right place, in the right time.


We believe consumers want to have meaningful conversations with their favorite and yet-to-be-discovered brands across all digital touchpoints. Our omnichannel, integrated programmatic platform unites digital media and big data to maximize the return on every marketing dollar spent by making advertising relevant, personalized, measurable and controllable.   From inventing the DSP category in 2007 to being named a DMP Forrester Challenger (our first year participating in the DMP Wave!) in 2017, we continue to deliver results for marketers more quickly and accurately than any other solution.


Technology is changing the way brands interact with consumers.  MediaMath is powering that change.  Come be a part of it!


We are seeking a process oriented Executive Assistant for founder and CEO, Joe Zawadzki. 


The CEO’s EA is a critical member of the Office of the CEO and will work with a small but highly motivated team to ensure the seamless coordination and execution of MediaMath’s highest level strategic priorities.


The right person will work closely and effectively with the CEO by anticipating needs, actively seeking out solutions and implementing process improvements.


An ideal candidate for the role should be eager to take on challenging tasks and be motivated to articulate creative processes to maximize efficacy and outcomes.



We seek a problem solver who is comfortable with navigating ambiguity and who will serve as a trusted business partner to the team.


  • Manage an extremely active calendar of appointments; compile and prepare correspondence; arrange complex and detailed travel plans, itineraries, and agendas; and assemble documents for travel-related meetings
  • Answer, screen and route CEO’s incoming correspondence (phone, mail, email etc.)
  • Plan, coordinate and ensure the CEO's schedule is followed and respected. Provide "gatekeeper" and "gateway" role, creating win-win situations for direct access to the CEO's time and office
  • Act as liaison between CEO and clients, vendors, etc. Ensure smooth communication with internal departments
  • Working with Chief of Staff prioritize conflicting needs with efficiency and precision. Proactively determine and implement ways to reduce calendar conflicts
  • Complete critical aspects of deliverables and special assignments by establishing objectives; determining priorities; managing time; gaining cooperation of others; monitoring progress; problem solving; adjusting plans and follow-through on projects to successful completion


This is not an exhaustive list of responsibilities. As part of our global team, you may be required to be work off-hours or be on-call on a rotating basis. Other duties may be assigned, as needed. MediaMath retains the right to change job duties at any time.





  • Bachelor’s in business or a relevant field degree required
  • 7+ years’ experience supporting a C-level executive in a fast paced, often ambiguous environment



  • High level of proficiency with Microsoft Office suite, in particular Outlook
  • High volume Calendar Management & Prioritization
  • Well versed coordinating and managing the C level business travel plans, both domestic and international with travel preferences ensured.
  • Experienced as owner and logger of all log-in/password data, travel, dining and in-office preferences, as well as all contacts.



  • High level of confidentiality and discretion
  • Acute attention to detail
  • Creative and ‘outside-the-box’ thinking
  • Must have an open mind to constructive feedback and eagerness to learn
  • Excellent communication and analytical skills with the ability to communicate with a broad range of stakeholders at all levels.



MediaMath is privately held, employee owned, and headquartered in New York. Mathletes enjoy: Company equity. Performance Bonus. Comprehensive Insurance. Global Internal Mobility. Open Paid Time Off, Philanthropy and Holidays. 401(k) match. Paid Parental Leave. Cell Phone Reimbursement. Modern office space. Onsite Fitness & Wellness.


If there might be a match, you'll be scheduled for a first-round interview; a 30-minute phone call with our recruiting team so we may get a better understanding of why you are interested in MediaMath and why you think it's a fit. We do our best to respond to everyone, however due to the volume of applications received, only those selected for interviews will be contacted. If you really think we’ve missed the mark, please follow up with and let us know why you’re the perfect fit!