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Monks, the digital‑first operating brand of S4 Capital, announced the appointment of Paula Marsilli as Vice President, Regional Accounts for Latin America, signaling a strategic push toward AI‑driven decision making across the region’s largest tech advertisers.
Monks, S4 Capital’s digital‑first unit, hires Paula Marsilli as VP of Regional Accounts for Latin America to embed AI‑first workflows and accelerate real‑time brand decisions.
Monks — the data‑centric, digital‑only operating brand under the umbrella of S4 Capital — revealed on March 10, 2026 that it has brought on Paula Marsilli to head its Latin America regional accounts. Based in Miami, the new vice president will report to Sebastián Caramés, executive vice president for the LatAm market, and will be responsible for reshaping how the firm’s biggest tech advertisers manage their media spend, creative output, and data insights. The move reflects a broader industry shift away from traditional account management toward what Monks describes as “decision augmentation,” a model that leans heavily on artificial intelligence to accelerate the marketing supply chain.
A seasoned leader steps into a fast‑evolving market
Marsilli arrives with more than two decades of experience spanning media, growth, and digital strategy across Brazil, Mexico, and the United States. Since relocating to Miami in 2024, she has built a reputation for bridging the gap between high‑touch human expertise and machine‑driven efficiencies. Her résumé includes senior stints at global agencies and brands such as Natura, Uber, VMLY&R, Omnicom Media Group, McCann, and Ogilvy & Mather. She is also a Caboré Award winner and a former director of IAB Brazil, underscoring a career that has consistently intersected commerce, creativity, and technology.
In her new role, Marsilli is expected to move beyond the classic “client‑service” playbook. Monks wants her to construct “real‑time brand ecosystems” that enable advertisers to shift from merely producing assets to making rapid, data‑informed decisions. This ambition aligns with the rising demand for speed and relevance in a media environment where algorithms dictate the placement and performance of every impression.
From silos to systems: what “decision augmentation” really means
Monks’ internal language frames the upcoming transformation as a migration from “traditional account management” to “decision augmentation.” In practice, this means that AI will handle the bulk of execution—optimizing bids, allocating budgets, and even suggesting creative variations—while human strategists focus on high‑value tasks such as brand storytelling, cultural relevance, and strategic foresight.
Marsilli outlined three core priorities that will guide the transition:
- Orchestration: The goal is to dissolve the longstanding barriers between data, media buying, and creative production. By establishing “systems of scale” that operate in real time, Monks hopes to deliver a unified workflow where insights flow seamlessly from one discipline to the next.
- Decision Augmentation: This priority emphasizes outcome‑based models where AI executes at scale, freeing human teams to concentrate on strategic impact. The approach mirrors the broader industry trend of moving from “process‑heavy” to “outcome‑focused” advertising.
- Cross‑Border Scalability: Leveraging Miami as a strategic hub, Monks aims to standardize what it calls “Machine Availability,” ensuring that brands maintain brand visibility across the algorithmic marketplaces of the Latin American region. In effect, the firm intends to provide a consistent, AI‑enabled service layer that can be deployed across multiple countries without sacrificing local relevance.
Executive perspectives
“Working with key accounts in the LatAm region requires more than just traditional agency support; it requires a partner who understands the algorithmic geography of the modern feed,” Marsilli said in the announcement. “Monks is the only player building a true operating system for this new era. My goal is to use our talent & machine model to help these clients stop compromising between speed and quality, ensuring they can carve out their place in culture while hitting their commercial targets in real‑time.”
Sebastián Caramés, executive vice president for Latin America, framed the hire as a strategic inflection point. “Paula’s appointment reflects a shift in how we serve our most advanced clients,” he explained. “In the post‑agency era, clients don’t just need people to manage hours; they need leaders who can orchestrate complex, AI‑enabled systems. Paula is the definition of the ‘T‑shaped talent’ we are prioritizing—someone who can bridge high‑tech efficiency with high‑touch human strategy. She brings the operational rigor we need to raise the standard of delivery for our strategic accounts.”
Adding a CEO’s viewpoint, Bruno Lambertini, chief executive of Monks’ Marketing Services division, highlighted the broader business implications. “Building a real‑time brand means having the voice of the customer available in every decision and responding to trends in minutes, without a punitive commercial model,” he said. “Paula understands that delivering this for clients requires more than traditional account management; it requires orchestrating a system of scale. Her leadership will empower our talent to operate at this new velocity, bridging high‑tech efficiency with true cultural relevance.”
Why the move matters for Latin America’s ad‑tech ecosystem
Latin America has emerged as a fast‑growing market for programmatic advertising, with mobile penetration exceeding 80 % in several countries and a burgeoning e‑commerce sector. Yet many regional advertisers still rely on legacy workflows that separate data collection, media buying, and creative production. By introducing an AI‑first supply chain, Monks hopes to cut down the time it takes to launch, optimize, and iterate campaigns—a competitive advantage in markets where consumer attention is increasingly fragmented across social, streaming, and gaming platforms.
Industry analysts have noted that AI‑driven decision frameworks can improve media efficiency by up to 30 % when properly integrated, though the gains are contingent on data quality and organizational readiness. Marsilli’s background—particularly her experience with data‑rich brands like Uber and her leadership roles within IAB Brazil—positions her to navigate the technical and cultural challenges that often accompany such transformations.
Furthermore, the emphasis on “Machine Availability” suggests Monks intends to standardize AI infrastructure across borders, potentially reducing the friction that typically accompanies multi‑country campaigns. If successful, this could set a new benchmark for how global agencies and operating brands manage cross‑regional media plans, especially in a region where language, regulation, and consumer behavior can vary dramatically.
Potential hurdles and the path ahead
While the promise of AI‑augmented decision making is compelling, the transition is not without obstacles. Data privacy regulations—such as Brazil’s LGPD and Mexico’s emerging data protection framework—require robust compliance mechanisms. Moreover, integrating AI into creative processes can raise concerns about brand safety and authenticity, especially when algorithmic recommendations influence messaging.
Marsilli’s track record suggests she is well‑versed in balancing these considerations. Her tenure at agencies known for blending data with creative storytelling, coupled with her award‑winning work in Brazil’s advertising community, indicates an ability to align technological ambition with cultural nuance.
Monks has yet to disclose specific timelines or client case studies that will illustrate the impact of the new model. However, the firm’s emphasis on “real‑time brand ecosystems” hints at a roadmap that includes pilot programs, performance dashboards, and perhaps a set of proprietary tools designed to surface insights instantly.
Looking forward
The appointment of Paula Marsilli underscores a broader industry trend: the convergence of AI, data, and creative strategy into a single, agile operating model. For advertisers in Latin America—who must juggle diverse languages, rapidly shifting consumer preferences, and a competitive digital ad spend landscape—the ability to make decisions in minutes rather than days could become a decisive factor.
If Monks can successfully operationalize its AI‑first vision under Marsilli’s leadership, the firm may not only improve outcomes for its existing client roster but also set a new standard for how regional accounts are managed globally. The next few quarters will reveal whether the “decision augmentation” framework can deliver on its promise of speed, efficiency, and cultural relevance without sacrificing the human insight that remains at the heart of effective advertising.
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