Sr. Account Manager

Who We Are At Mosaic, we believe humanity is the starting point to every solution. In a world where technology is moving faster than ever, people are looking for authentic connections they can trust. That's where we come in. We create human-centered experiences that bring brands and consumers together in meaningful ways, transforming audiences into advocates and moments into measurable business results. We're an outcomes-obsessed experiential agency that helps brands build stronger connections with customers, communities, partners, and employees. From large-scale consumer activations and retail experiences to executive events, conferences, sponsorships, sampling programs, and B2B engagements, experiential marketing is at the core of what we do. We're looking for a Senior Account Manager who thrives in a fast-paced environment, loves building client relationships, and knows how to turn great ideas into flawlessly executed programs. The Senior Account Manager is a strategic leader, trusted advisor, problem solver, and client champion. You'll be responsible for leading a portfolio of experiential marketing programs from brief through execution, managing client relationships, guiding internal teams, overseeing budgets, and ensuring every deliverable meets Mosaic's standards for creativity, operational excellence, and measurable impact. Success in this role comes from balancing strategic thinking with hands-on execution while maintaining strong relationships internally and externally. Typically, a mosaic is where all the pieces fit together nicely. That’s not us. This Mosaic is where every piece stands out. That’s because each person at our agency brings their own, unique set of skills to every brief, build, interaction, reaction, design and idea. As part of the Acosta Group, Mosaic is one of the original marketing agencies who specialize in interactions, experience isn’t just what we have, it's what we create. With 3,000+ team members and hubs in Toronto and Dallas, we’ve spent over 35 years bringing brands to life through experiential marketing, integrated commerce campaigns, and field sales strategies that drive real behavior change. From awareness, to earned, brand equity, consideration, and sales — we approach every project with people in mind, regardless of the channel or discipline. The result is an idea that can spark emotion and create action — whether it’s a sale or a smile. We celebrate bold thinking and embrace curiosity as we shape what’s next. Acosta Group is an equal opportunity employer and will ensure that applicants with disabilities are provided with reasonable accommodations. If reasonable accommodation is needed, please contact View email address on click.appcast.io. Be sure to include "Applicant Accommodation" in the subject of your email to expedite the request. Acosta Group believes in good faith that the minimum and maximum annual salary or hourly compensation range for this opportunity is accurate and reasonable at the time of posting. The Acosta Group utilizes E-Verify for validating the ability to work in the United States for all job candidates. If you want more information on what this entails and your rights as a job applicant, please use the link provided to access information on our use of E-Verify and your right to work. Employer Resources (e-verify.gov) By applying, you agree to our Privacy Policy and Terms and Conditions of Use. #DiscoverYourPath