Arianna Vamvas
Marketing Professional
Boston
Summary
I don’t just solve problems—I see them before they exist. I uncover inefficiencies and risks before they disrupt progress, turning data into decisions that drive real results. Managing accounts has given me a front-row seat to how businesses operate—how the right insights, applied at the right time, can mean the difference between stagnation and sustainable growth. Now, as a master's candidate in Global Business Administration at Tufts University’s Fletcher School, I’m sharpening my ability to navigate uncertainty, mitigate risk, and develop strategies that drive businesses forward.
Overview
4
4
years of professional experience
5
5
years of post-secondary education
Work History
Account Manager - Client Services
AdTheorent
11.2023 - Current
- Spearhead the management of a 30+ portfolio of cross-channel programmatic campaigns for AdTheorent’s managed service DSP, serving as the primary client services liaison for the Boston office and driving measurable client success.
- Optimize operational efficiency by leveraging Atlassian Jira and Salesforce, enhancing workflow automation, data transparency, and cross-functional collaboration.
- Conduct in-depth performance analyses to assess campaign effectiveness, proactively identify risks, and implement strategic optimizations that drive ROI and efficiency gains.
- Oversee end-to-end client billing and invoicing processes, ensuring 100% accuracy, regulatory compliance, and seamless reconciliation, mitigating financial discrepancies.
- Foster and strengthen client relationships by collaborating across multiple cross-functional teams, ensuring alignment with client goals, and delivering proactive, solutions-oriented service.
- Resolve high-stakes escalations with urgency and precision, preventing client churn and preserving key accounts while maintaining long-term partnerships and business continuity.
Assistant Media Planner
Mediahub Worldwide
06.2022 - 11.2023
- Managed high-profile client accounts, including New Balance, Topgolf, Amazon, and the Bill & Melinda Gates Foundation, executing multi-million-dollar media campaigns with measurable success.
- Executed data-driven media strategies to enhance campaign performance, leveraging insights from Nielsen Media Impact, Comscore, and Signal Tableau to optimize audience targeting and media allocation.
- Optimized financial processes by streamlining budget reporting and billing systems, implementing a tracking mechanism that improved campaign efficiency and maximized budget utilization.
- Assisted in the negotiation of media contracts, securing advantageous rates and placements for clients.
- Developed quarterly competitive spending reports, providing market intelligence and actionable insights on industry trends and competitor strategies to guide executive decision-making.
Public Relations & Marketing Intern
Public Strategy Group
08.2021 - 01.2022
- Improved strategic decision-making by conducting research on industry trends, as well as political and regulatory developments
- Prepared comprehensive reports and summaries to inform client strategy and identified opportunities or risks
- Assisted with the development and drafting of press releases and informational articles to promote client initiatives and build positive media coverage
- Developed a strong understanding of various industries, enabling tailored strategy development for diverse clientele.
Brand Strategy Intern
Superdigital
01.2021 - 05.2021
- Developed pitch decks, proposals, and media strategies for clients including Nerf and Mi Nina Tortilla, driving data-informed marketing initiatives.
- Increased audience engagement by 15% by conducting segmentation research and implementing targeted marketing strategies to enhance consumer reach and campaign effectiveness.
- Optimized digital campaign performance by leveraging data analytics and social listening tools, refining audience targeting, and improving overall marketing efficiency.
Education
Master of Global Business Administration -
Tufts University - The Fletcher School
01.2024 - 01.2026
Bachelor of Science - Communications
Boston University
Boston, MA 01.2019 - 01.2022
Skills
Data analytics
Decision-making
Cross-functional collaboration
Market trend analysis
Team leadership
Account management
CRM systems
Vendor relations
Contract negotiation
Languages
- English - Fluent
- Spanish - Fluent
- Greek - Fluent
Timeline
Master of Global Business Administration -
Tufts University - The Fletcher School
01.2024 - 01.2026
Account Manager - Client Services
AdTheorent
11.2023 - Current
Assistant Media Planner
Mediahub Worldwide
06.2022 - 11.2023
Public Relations & Marketing Intern
Public Strategy Group
08.2021 - 01.2022
Brand Strategy Intern
Superdigital
01.2021 - 05.2021
Bachelor of Science - Communications
Boston University
01.2019 - 01.2022
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