Hi, I’m Marie Marcus

I’m a strategic marketer who bridges product, brand, and growth—turning business priorities into high-impact campaigns, launches, and lifecycle programs that connect with customers and move the needle.

About me

I’m a strategic marketer with a track record of turning product vision into customer adoption, through sharp campaigns, scalable systems, and content that connects.

At Klarna, I’ve led go-to-market strategy for new financial products, scaled global lifecycle systems, and launched multimillion-dollar campaigns across CRM, app, and partner channels. I helped introduce Klarna’s debit product in the U.S., built the Klarna Card ecosystem, and created a campaign planning framework now used in 22+ markets.

Before Klarna, I led global marketing initiatives at Cover Genius, rolling out HubSpot, scaling lifecycle and ABM programs, and partnering with brands like Booking.com and GoPro. At Tesla, I supported major digital and offline lead-gen campaigns across Europe and built the Marketing Champions program to help local teams run brand-aligned activations.

My sweet spot is translating complex products into clear, compelling marketing, and scaling what works. Whether I’m building from scratch or driving adoption at scale, I bring structure, momentum, and a clear point of view to every campaign I lead.

Some personal info about myself: I’m half French, half Dutch, and currently living in downtown NYC. I love traveling and discovering new cultures, I've lived in four countries and visited over 25. Most days, you’ll find me walking my dog Flo (who has big opinions and a hidden agenda at all times), doing pilates, or trying yet another bakery in search of great bread.

Skills

Integrated campaign management

Led campaigns across 22 markets and 18+ teams, aligning product, brand, and channel owners. Skilled in turning business goals into briefs, then driving execution across CRM, paid, app, and influencer.

Tools: Figma, Miro, Contentful, Jira, Monday.com

Product launches
& GTM

Developed go-to-market strategies for cards, app features, and partner offers, defining value props, mapping key moments, and partnering with product on adoption journeys.

Tools: Figma, Miro, Jira, Slack, Google Slides

Customer journey &
lifecycle marketing

Built lifecycle flows from onboarding to retention, working closely with product and CRM to segment users, map key behaviors, and drive repeat engagement across surfaces.


Tools: Braze, Salesforce Marketing Cloud, Hubspot, Looker, GPT

Strategic planning &
process creation

Created Klarna’s campaign planning system and other frameworks to connect product priorities with campaign execution—helping teams prioritize, align, and scale efficiently.

Tools: Qlik Sense, Amplitude, Google Analytics, FullStory, ClickUp

Content Strategy

Built modular content systems and messaging frameworks for global launches, financial education, and shopping campaigns—balancing education, conversion, and brand tone.


Tools: Contentful, Figma, Taxi, Locker, GPT Prompt Lab, Lovable

Partner Marketing

Led B2B, B2C, and B2B2C campaigns with Visa, Apple, Booking.com, Sephora and more—aligning messaging, creative, and incentives to drive shared value across channels.

Tools: Hubspot, Salesforce, Google Workspace, Slack

What colleagues say

  • “Marie consistently delivers outstanding results and has led some of our most important campaigns, including Klarna Card US and the global Q4 Holiday campaign. Her strategic range, creative leadership, and ability to drive cross-functional collaboration make her an invaluable asset.”

    Taylor Hoffmann-Subjack (Head of CRM - Klarna)

  • “Marie is a rare mix of strategic thinker and detail obsessive. She brings clarity, energy, and rigor to everything she touches, and always speaks up with insights that sharpen the work. She’s the kind of teammate you want in the room when it matters, and the one you count on to get things over the line.”

    Esther Whitworth (Chief of Staff - JPMorgan Chase)

  • Marie was the driving force behind our global HubSpot rollout and partner marketing program. Strategic, hands-on, and endlessly resourceful, she brought clarity, creativity, and momentum to every project. A true growth mindset marketer, and someone I trusted to step into any challenge.

    Gilly Mandelman (Director of Marketing - Cover Genius)

  • “Marie combines creativity, systems thinking, and serious execution power. She’s the first to embrace new tools, takes full ownership of digital projects, and brings sharp insight, persistence, and speed to everything she does.”

    Laurens Keuning (Chief of Staff - Tesla)