MANU ARIZA

AI-native product builder · Product · ex-Stripe

Original products / Real-codebase builds / Trust, validation, and learning loops

AI-nativeproduct builder.

I build original online products from zero to one by combining product strategy, design judgment, technical systems thinking, and AI-assisted execution.

Start with the case files
Manu Ariza

Manu Ariza

Product · ex-Stripe

Madrid, building globally

Discovery

Turn raw context into a product thesis.

Feedback

Classify messy signal into decisions.

Prototype

Reduce the riskiest uncertainty.

Launch

Release through evidence and gates.

Trust

Make boundaries visible in the product.

Donaya fundraising product cardKey Models decision library product cardPaliet poster editor product cardGradimio compensation matrix product cardLofillama chord generator product card

Product depth

Scaled operating judgment became hands-on product building.

Scaled product systems

Feedback loops, launch readiness, source truth, and decision cadence.

Independent builds

Original products with distinct domains, users, risks, and operating loops.

AI-native execution

Role-specific AI work governed by briefs, validation, review, and human claims.

Case files

Four product case studies showing strategy, UX, real-codebase execution, trust decisions, launch gates, and feedback loops.

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Donaya product interface artifact
01

Donaya

Live pilot · Nonprofit fundraising operations

Fundraising operations for nonprofits: campaigns, supporter records, payments, certificates, and follow-up.

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Key Models product interface artifact
02

Key Models

Live knowledge product · Decision library and templates

A decision-library product with search, model pages, semantic visuals, templates, and editorial QA workflows.

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Gradimio product interface artifact
03

Gradimio

Pilot-stage · Compensation intelligence system

Job architecture and compensation workflows for traceable, reviewable pay decisions.

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Paliet product interface artifact
04

Paliet

Live product · Generative poster commerce

A generative poster studio with live editing, saved creations, checkout, and print-ready exports.

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How I build

A compact view of my operating model: product judgment, real-codebase execution, and the loops that keep products improving.

Three layersof product leverage.

Personal

Clear productjudgment

  • User empathy
  • Strategic framing
  • Taste and craft
  • Decision quality

Product

From idea toworking product

  • UX & UI
  • Real-codebase prototypes
  • Data & analytics
  • Go-to-market paths

Operating loops

Build the product'slearning system

  • Trust & security
  • Launch gates
  • Feedback loops
  • Operational cadence

Projects

Active work beyond the four flagship case studies.

More working surfaces, kept accessible.

The four case studies show the deepest product systems. This section keeps the rest of my active product, music, knowledge, and utility work easy to inspect.

View projects
Wonderblip homepage with its text-generator proposition and daily movie challenge.
Live product · 23 playful text generatorsPlayful text generator collection

Wonderblip

A polished collection of 23 text generators for names, prompts, quotes, products, and stranger things—with saved results, shareable seeds, and multi-stage mixes.

Lofillama waterfall music player interface.
Live creative productAmbient music player

Lofillama

A minimal lo-fi listening surface with atmospheric scenes, playback controls, and a playful audio identity.

Lofillama Generator interface with chord generation controls and waveform.
Live creative toolMusic generation tool

Lofillama Generator

A browser-based lo-fi generator for exploring chords, patterns, parameters, and generated musical progressions.

inalbis music player modal over a music catalog.
Live creative siteMusic identity and listening site

inalbis

A music catalog and artist site for my composition work, with playback, track pages, and a restrained visual system.

Movifinder homepage with movie hero and trending grid.
Live entertainment appMovie discovery product

Movifinder

A movie discovery product with trending titles, detail pages, actor profiles, cast grids, and visual browsing.

Stock FOMO calculator result with chart.
Utility experimentFinance calculator

Stock FOMO

A playful market calculator showing how a stock investment might have performed, with charts, result states, and a direct input flow.

Playbook

The briefing system behind the work.

A field guide for turning rough ideas into buildable product work: briefs, workflows, launch checks, and learning loops.

Open playbook
Operating modelSHIP + OPERATE
  1. 01

    Sketch

    Is this worth building?

    • Problem thesis
    • Customer wedge
    • Opportunity map
  2. 02

    Helm

    Is the direction clear enough to build?

    • Product brief
    • User stories
    • UX flows
  3. 03

    Iterate

    Can the core value be felt quickly?

    • Working prototype
    • Hardcoded path
    • Interaction proof
  4. 04

    Perfect

    Can this become launch-ready?

    • Clean build
    • Design system
    • Launch checks
  5. 05

    Operate

    How does the product keep learning?

    • Feedback loop
    • Validation scripts
    • Release notes
Close view of fanned briefing cards with a printed vermilion process diagram, pen, and round seal sticker.
Briefing materials
AI needs a brief

Better output starts with sharper context: who it serves, what it must do, where it can fail, and how a human will review it.

Speed needs judgment

Fast building only matters when the question is worth answering and the riskiest assumption is visible early.

Products need a loop

The work is not finished at launch. Signals become decisions, decisions become changes, and changes become visible progress.

Creative systems

Music, generative artwork, and knowledge tools that shape my taste and product craft.

Lofillama music generator interface with warm waveform and chord controls
Key Models product homepage with searchable business models, templates, and metrics