Senior Account Executive, Agency Client Services (Paid Media)

Must have: 5+ years in agency client services managing paid media accounts (paid search, paid social, programmatic). This is an agency account leadership role, not a sales role.

Location: Hybrid, Brooklyn, NY (2–3 days per week in office)
Department: Client Services
Reports to: Director, Strategy & Client Services
Salary: $100,000 – $120,000 base, based on experience

About Mason Interactive

Mason Interactive is a data-driven digital marketing agency headquartered in New York City. We deliver integrated, full-funnel media programs that convert consumer insights into measurable business outcomes for national and emerging brands.

The Role

As Senior Account Executive, you are the lead strategist and primary client contact for a portfolio of key accounts. You own client relationships end to end, set omnichannel media strategy, align senior client stakeholders, and direct cross-functional teams to deliver against performance targets. You also mentor Account Executives and drive account growth.

What You'll Do

- Own relationships with key accounts as the primary point of contact, including senior and executive-level stakeholders

- Develop and present integrated, multi-quarter media strategies across paid search, paid social, programmatic, affiliate, SEO and AI search (AEO), lifecycle and emerging channels

- Lead status meetings, planning sessions, monthly performance reviews and QBRs with clear, executive-ready narratives

- Turn performance data into insights and recommendations that guide optimization and future planning

- Oversee budgets, pacing and KPIs; lead forecasting and budget reallocation recommendations to maximize ROI

- Manage scope, timelines and expectations; triage change requests and partner with Operations on SOWs and change orders

- Direct planners, buyers and channel specialists; review deliverables for accuracy and strategic alignment

- Identify growth opportunities and build business cases and proposals tied to client goals

- Surface risks early and lead resolution with data-backed options

- Mentor Account Executives on client communication, strategy and account management

What You'll Bring

- 5+ years of client-facing experience in an agency account management, strategy or media planning role

- Proven success retaining and growing complex accounts while meeting or exceeding KPIs

- Executive presence: confident leading senior-level conversations, managing escalations and influencing decisions with data

- Advanced knowledge of paid search, paid social and programmatic platforms; Google Ads, Meta or GA4 certifications preferred

- Strong analytical skills, including GA4 and dashboard fluency, and the ability to turn data into clear executive narratives

- Financial acumen across budget pacing, forecasting and scope management

- Authorization to work in the United States and ability to work from our Brooklyn office 2–3 days per week

Why Mason Interactive

- Direct ownership of client outcomes, with a clear path to Account Director and beyond

- A diverse portfolio of high-growth clients across multiple verticals

- A collaborative, cross-disciplinary team that moves quickly on new ideas, including AI-driven search and media

Benefits

- Health, dental and vision coverage

- 401(k) with company contribution

- Generous PTO and paid holidays

- Professional development support and certifications

- Flexible hybrid schedule