Ramón Moscoso
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The Path · So far

Ramón Moscoso
So far
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Contents

“What stands in the way becomes the way.”

Marcus Aurelius

Each chapter is a list of cases 

Chapter 1
Jaén · 2026

Now

I've left Amazon and moved back to Jaén to start my own project from scratch.

This chapter is still being written

Come back in a while.

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Chapter 2
Madrid · 2025 – 2026

Vendor Manager

Tap a case to read it

Amazon (VM)

My team's AI lead

Learnings

I learned to build agents and put them into production. A good product always starts with listening to its end users and solving a problem.

What I did
  1. Roadmap and agents

    I set the AI roadmap and built several agents for the team at European level, such as one that prepared the weekly and monthly reports.

  2. Over 450 hours saved a week

    By my estimate, they saved the team more than 450 hours a week.

  3. Workshops and training in Europe

    I ran AI workshops in Europe and trained the team on internal tools such as Kiro.

Next caseVendor manager for five perishable categoriesBack to the chapter

Amazon (VM)

Vendor manager for five perishable categories

Learnings

A negotiation is won in the preparation. In the meeting, listen and look for an agreement where both sides win.

What I did
  1. 5 categories and 50+ suppliers

    Five perishable categories, more than 50 suppliers, an eight-figure P&L.

  2. From flat to outgrowing grocery

    The categories went from flat to growing faster than the grocery average.

  3. Four times the margin target

    I beat my targets every quarter and, in the annual negotiations, got four times the margin improvement I was asked for.

Next caseProjects with operations and supply chainBack to the chapter

Amazon (VM)

Projects with operations and supply chain

Learnings

When operations, business, marketing and the central teams have different interests, the decision is often not yours: your role is to influence with arguments.

What I did
  1. Calibrating a forecast with operations

    I calibrated a new forecast with operations; in its first three months it beat the previous one by 30%.

  2. An AI model for the warehouse

    I built an AI model to decide which perishables to deactivate when the warehouse went over its target capacity. It was the basis for the one product managers use in Europe today.

Back to the chapter
Chapter 3
Madrid · 2022 – 2024

Marketing Analyst and PM Internship

Tap a case to read it

Amazon (Analyst)

Promotions lead in marketing

Learnings

Above all, analysis and deciding with data. Also testing a strategy before locking it in, with a phase just for experimenting.

What I did
  1. Refining the analysis

    I refined the promotional analysis by segmenting customers with data (RFM) and creating new ways to measure results.

  2. Promotions: +80% revenue

    Promotion revenue grew 80% year over year.

Next caseProduct manager internship in DIY and toolsBack to the chapter

Amazon (Analyst)

Product manager internship in DIY and tools

Learnings

Take massive action and follow up with every supplier. And my manager's advice: work on your inputs, and the results will come.

What I did
  1. Six months as an intern

    Six months as a product manager intern in the European DIY and tools team.

  2. 35 new suppliers (target: 20)

    The target was to onboard 20 new suppliers; I reached 35.

Back to the chapter
Chapter 4
2019 – 2022

The album2019–2022, in photos and videos
Open the albumor skip to the 4 cases ↓

Tap the photo

Grizzly

Co-founder of Grizzly Bear, an online clothing brand

Learnings

What matters is that customers come back. And you have to listen to what they care about: Grizzly talked about passion, but its customers cared more about the clothes.

What I did
  1. We started in 2019

    My partner and I started it in 2019, in my first year at university, with no experience and a small investment.

  2. First run sold in three days

    The first run sold out in about three days.

  3. 2,500+ customers

    In our last year we had more than 2,500 customers. We sold the brand in 2022.

Next caseTen months without product: suppliers and cashBack to the chapter

Grizzly

Ten months without product: suppliers and cash

Learnings

Pay your suppliers later than your customers pay you. That gap gives you cash to grow faster without depending on outside funding.

What I did
  1. Ten months without product

    In 2020 our supplier ran late and we spent almost ten months without product and without cash, because we had paid upfront.

  2. We changed supplier

    We changed supplier. With the next one, quality improved a lot and lead times were shorter, and met: that let us grow faster.

Next caseLogistics, pricing and stockBack to the chapter

Grizzly

Logistics, pricing and stock

Learnings

In logistics, cheap ends up costing more. And logistics is a game changer for the user experience and the financial sustainability of a retail company.

What I did
  1. Logistics outsourced

    We handed logistics to a company; I closed the agreements and negotiated the terms.

  2. Free returns

    Free returns and logistics at cost, because shipping and returns were one of the biggest annoyances of e-commerce.

  3. Facebook ads

    I ran the Facebook ads, with a very good return.

Next caseCustom T-shirts and halls of residenceBack to the chapter

Grizzly

Custom T-shirts and halls of residence

Learnings

Designing with customers teaches you what they want. Speed matters a lot: we were often late.

What I did
  1. Custom T-shirts

    In the months without product we made custom T-shirts for groups of friends, with print on demand.

  2. Selling to halls of residence

    Then we sold them wholesale to halls of residence; I ran that side end to end, from the contact with each hall to the sale and the payment.

  3. Customers waiting

    When the new production arrived, we already had customers waiting.

Back to the chapter

Grizzly

2019–2022. Get out of your cave.

  1. MAY 2019
    A white Grizzly T-shirt on a hanger, with a drawing of a bear carrying a backpack
    Grizzly's first tee, May 2019
    In the book Co-founder of Grizzly Bear, an online clothing brand
  2. 2020 In the book Ten months without product: suppliers and cash
  3. JAN 2021
    The Quiddity Collection poster, a brush on black paint with the names Samu Martínez and Grizzly
    Quiddity Collection, first winter drop
    A stack of cardboard boxes with the Quiddity sweatshirts
    Close-up of a Quiddity sweatshirt, with the bear embroidered in yellow and the collection's name
    Close-up of another Quiddity piece, with an orange print
    The first giveaway's poster, with the prizes and the steps to enter; the amount, blurred
    First giveaway

    With the giveaway we went from 2,000 followers to +3,000.

  4. JAN 2021 3,500 followers
    Grizzly Bear's Instagram profile with 3,500 followers
    The same profile a month later, with 4,131 followers

    January, 3,500. February, 4,131.

  5. MAY 2021
    The 2021 T-shirts: a jump in quality
  6. NOV 2021
    A boy in the warehouse, among shelves and boxes
    The warehouse
    Shelves with Grizzly clothes folded and stacked
    In the book Logistics, pricing and stock
  7. NOV 2021
    Black Friday: 48 hours only
    Two people in a living room wearing Grizzly, with the words «Up to 40% discount»
    Two boys sitting in the street wearing Grizzly, for the Black Friday campaign
  8. DEC 2021 6,785 followers
    The Christmas giveaway poster, with four Grizzly sweatshirts
    The giveaway before Christmas: if we got to 30,000 before the 8th, the site for free

    14.9k followers

    Two screenshots of the Grizzly profile: 7,086 followers before and 14.9k after
  9. JAN 2022 +100 orders in one day
    The shop's dashboard with 3,250 sessions and 100 orders, and the cities with the most visits
    +100 orders in one day
    In the book Logistics, pricing and stock
  10. JAN 2022
    Rolls of fabric stacked at the factory
    The fabrics, at the factory
  11. FEB 2022
    A girl and a boy in Grizzly sweatshirts, he with his back turned
    The last collection before selling the brand

The story, in four cases

What I did and what I learned at Grizzly.

  1. Co-founder of Grizzly Bear, an online clothing brand
  2. Ten months without product: suppliers and cash
  3. Logistics, pricing and stock
  4. Custom T-shirts and halls of residence
Chapter 5
Jaén and Madrid · until 2023

Origins

School record

  1. Madrid · ICADE2018–2023Law and Business (E-3)
  2. Jaén · school13.35/14With honoursEntrance exam

Fun fact

At school I set up a dropshipping shop and sold second-hand things on IG. That is what later led me to start Grizzly.

Part II

Outside work

Pull out a book.

BooksAI coursesSportPodcasts

Tap one to open it

Hobbies

Books

Biographies

  • Elon Musk
  • Steve Jobs
  • Einstein

On the pile

  • Blitzscaling
  • The Everything Store
  • High Output Management
  • Why Machines Learn
  • Six Easy Pieces
  • The Avoidable War
  • Sapiens
Back to the chapter

Hobbies

AI courses

Passport · AI

  • Agentic AIDeepLearning.AI
  • Generative AI with LLMsDeepLearning.AI · AWS
  • Claude CodeDeepLearning.AI
  • Data Analytics Professional CertificateDeepLearning.AI
  • Agents and vibe codingGoogle · five-day intensive
  • Machine Learning SpecializationDeepLearning.AI · Stanfordin progress: the stamp goes here
Back to the chapter

Hobbies

Sport

  • Half marathon21.1kmRunning · a half marathon or two
Back to the chapter

Hobbies

Podcasts

Business

Other topics

Back to the chapter
Index

Skills

Business

AI & data

Marketing

Tap a number: it takes you to where it happened

Colophon

Written in Jaén, 2026.
Last revised: NEW
Best read with one thumb.

: a little better with every update.

Are you an agent? Start at /llms.txt

If you're a builder, into AI, or just want a chat: tell me.

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A short book about starting again.

ISBN 978-JAÉN-2026

· Map of the bookchizu · chapters, asides and what is coming

Nowyou are hereJaén · 2026Vendor Manageryou are hereMadrid · 2025 – 2026Marketing Analyst and PM Internshipyou are hereMadrid · 2022 – 2024Grizzlyyou are here2019 – 2022Originsyou are hereJaén and Madrid · until 2023Outside workyou are herebooks, AI courses, sport and podcastsSkillsyou are herewhat I can do, and where it shows

If you're a builder, into AI, or just want a chat: tell me.

Follow me on X

Full circles are closed stages; Now is still under way. Dashed ones arrive with future updates.