Micah McGuire

Early-stage product marketing | Ex-Head of Growth @ GrowthMentor | Writer and major productivity geek

United States

About

Hi there—I’m Micah, a hybrid product marketer and growth practitioner. I love figuring out what makes people tick and then explaining why through stories. Because data is only as useful as the stories you can tell with it. As a growth practitioner, nothing makes my day like a good opportunity for an experiment. I nerd out over finding out what works, what doesn’t, and tracing how each tweak affects the entire funnel from acquisition to retention. But as a creative writer and psychology geek, I’m always wanting to know: but why did it (or didn’t it) work? What was the psychology at play here? (Turns out once you ask these questions enough about fictional character motivations, you start thinking about how it works in real life too.) In my past roles, I've worked with bootstrapped startups as a founding PMM and a growth team of one. Today, I'm working at Rithum to help drive the world of e-commerce forward. Like a crow with shiny objects, there are a few topics I’m always fascinated by: 🧪 Anything product marketing or growth-related (though I'm now more marketing than product side, I still love both areas) 🧐 Neuroscience and psychology, especially cognitive biases and decision-making 🔬 Anything biomedical or microbiology related—I wasn’t a microbio major without reason! 🎯 Productivity Outside of work, you can usually find me baking or typing away at my latest creative writing project (usually fantasy or science fiction). Feel free to connect if you want to talk growth, product marketing, user research, or anything creative writing.

Experience

  • Senior Product Marketer at Rithum
    Apr 2025 - Present · 1 yr 4 mos

  • GrowthMentor (2 yrs 10 mos)
    • Startup Mentor
      Oct 2023 - Present · 2 yrs 10 mos

      Mentoring mentees on product, user research, and growth marketing. Mentor Profile Link: https://app.growthmentor.com/mentors/micah-mcguire

    • Head of Growth and Product Marketing
      Oct 2023 - Sep 2024 · 1 yr

      As a growth team of one and founding PMM, I built and rapidly executed our new GTM strategy from end-to-end to achieve conversions for a paywalled product and developed brand awareness with multi-channel, product-led content campaigns.

    • Head of Content
      Oct 2023 - Jan 2024 · 4 mos

  • Senior Product Marketing Manager (Fractional) at GrowthPMM
    Sep 2024 - Apr 2025 · 8 mos

    Working with seed to Series A startups for fractional product marketing strategy and execution. Currently working with an accounting startup and https://atomicboxes.com, and previous work with a anti-money laundering screening startup. More projects and details to come.

  • Founder and Program Strategist at The Mind Redesign
    Jun 2018 - Sep 2024 · 6 yrs 4 mos

  • ProWritingAid (2 yrs 10 mos)
    • Growth and Product Marketing Manager
      Jan 2022 - Oct 2023 · 1 yr 10 mos

      Focused on user research. feature launches, and activation and onboarding optimizations, including a pilot user research project, co-leading a cross-functional user research team, and growth experiments.

    • B2B Marketing Manager
      Jan 2021 - Feb 2022 · 1 yr 2 mos

      Solo-marketer for new B2B unit. Established positioning, messaging, and GTM strategy as well as conducted marketing campaigns end-to-end.