Mariana Wille

About Mariana Wille

I am a senior marketing and communications leader with over 13+ years of experience designing and executing integrated marketing strategies across fintech, payments, and SaaS environments. My expertise lies in translating complex business, product, and partner priorities into scalable marketing programs that drive revenue growth, strengthen brand positioning, and support enterprise and mid-market sales motions across highly regulated, competitive industries.Throughout my career, I have led global, multicultural marketing initiatives spanning North America, APAC, EMEA, and LATAM, combining data-driven digital execution with executive communications, PR, and go-to-market leadership. I bring a strong balance of strategic vision and operational rigor, with deep fluency in marketing technology, analytics, and cross-functional collaboration, enabling me to influence senior stakeholders, align diverse teams, and deliver measurable business impact. I’m business proficient in English, Spanish and Portuguese.Career Milestones• Led partner-led B2B marketing initiatives at Fiserv that generated ~25% year-over-year growth that supported double digit $M in cross-sell revenue, and contributed to $1B+ in total revenue.• Directed global external communications across APAC, EMEA, and LATAM, securing high-impact media placements, industry awards, and spokesperson opportunities that elevated brand visibility in priority markets.• Built and led global marketing and communications at Instantor across 13 markets, supporting $4.6M in annual revenue, enterprise sales motions and open banking growth initiatives serving 150 clients and enabling over 5M credit decisions.• Oversaw delivery of 20+ concurrent marketing campaigns at Mastercard Managed Services, improving campaign accuracy, stakeholder satisfaction, and transaction growth across Mexico and Central America.• Supported early-stage fintech expansion at iZettle by executing integrated offline and digital campaigns that drove merchant acquisition, app downloads, and 10K+ POS adoption across Mexico, Spain, and Brazil.Top Skills• Integrated Marketing Strategy• B2B Partner & Product Marketing• Demand Generation & Account-Based Marketing• Digital Campaign Management & Marketing Analytics• PR, Media Relations & Thought Leadership• Go-to-Market Strategy & Sales Enablement• Marketing Operations & Marketing Technology• Multicultural & Global Marketing• Cross-Functional & Stakeholder Leadership• Saas, Fintech & Payments Marketing • Agency & Event Management • Market Research• Content Strategy • SEO & AIO

Experience

1. Senior Marketing Manager

   Fiserv

   Oct 2025 — Present · Milwaukee, WI, US

   Lead net-new client acquisition and partner-led B2B marketing strategies by designing and executing integrated marketing initiatives that support partner scalability, pipeline growth, and revenue generation across fintech, payments, and SaaS segments.• Collaborate closely with cross-functional teams including sales, demand generation, web, creative, martech, social media, and corporate communications to ensure cohesive execution of multi-channel partner marketing programs.• Manage external partner relationships and agency engagements, coordinating joint go-to-market initiatives that position Fiserv solutions effectively across priority verticals and drive sustained revenue impact.• Leverage account-based marketing methodologies, industry insights, and cross-functional collaboration to enhance partner engagement, inform sales strategies, and accelerate revenue opportunities.

Education

• Stockholm School of Economics

  Master in General Management, Management

  2011 — 2013

• Instituto Tecnológico Autónomo de México

  Bachelor's Degree, International Relations

  1998 — 2004

• University of Wisconsin-Parkside

  MBA, Business, Management, Marketing, and Related Support Services

• University of Wisconsin-Parkside

  Digital Marketing