SENTINEL OS
A coordination system for 50 autonomous AI agents, with exception-based oversight and traceable trust.

I work with CTOs, CROs, and product leaders at B2B SaaS companies and marketplaces in Mexico and Chile. I find where conversion leaks and design the change that wins it back.



.2d0g73x45wvxb.png&w=3840&q=75)



.2d0g73x45wvxb.png&w=3840&q=75)


Leandro Balbian
Based in Chile, one foot in Mexico.
Product · Growth · Design
Eight years designing complex systems in Chile and Mexico taught me that friction is almost never where the dashboard says it is. Now I cross-check analytics, business data, and real user sessions before I design the intervention.
How I help your team
I join product, engineering, data, and business teams right where growth stalls. I work in three ways, and each one has its own page with the method, step by step.
Selected work
A coordination system for 50 autonomous AI agents, with exception-based oversight and traceable trust.

A certification and skills management system for Chilean industrial companies.

From research into the marketplace's data and workflows to an AI-native product proposal, selected among the winners of an internal hackathon.
Among the winners · Mexico round
View full case studyI cross-referenced two databases and found hundreds of customers with real purchase intent who never reached a broker's inbox.
View full case studyTestimonials
1 of 4
“We had operators losing critical minutes to duplicate alerts and screens that prioritized nothing. Leandro redesigned SIAC's information architecture so the right decision took seconds. Today, response time on critical cases has dropped, and the team no longer depends on individual memory.”
Lucas Ibáñez
Head of Operations
“Our intranet had all the information, but nobody used it. Teams were repeating processes in parallel Excel sheets. Leandro audited the flows, removed redundant steps, and designed an interface that 80% of the team adopted in the first week, without forced training.”
Andrés Fuentes
Product Lead
“We had an internal platform our sales reps avoided. Every month-end close was a mess of emails and mismatched versions. Leandro identified the 3 flows that actually drove the operation and rebuilt them. Now closing errors are down, and new reps get up to speed on their own much faster.”
Francisco Ramírez
Operations Manager
“The certification system for field workers was fragmented across 4 different tools. Leandro unified the experience into a single platform and simplified the approval flows. Today we've cut administrative time, and turnover among new staff has dropped noticeably.”
Marcela Rojas
HR & Compliance Director
“We had operators losing critical minutes to duplicate alerts and screens that prioritized nothing. Leandro redesigned SIAC's information architecture so the right decision took seconds. Today, response time on critical cases has dropped, and the team no longer depends on individual memory.”
Lucas Ibáñez
Head of Operations
“Our intranet had all the information, but nobody used it. Teams were repeating processes in parallel Excel sheets. Leandro audited the flows, removed redundant steps, and designed an interface that 80% of the team adopted in the first week, without forced training.”
Andrés Fuentes
Product Lead
“We had an internal platform our sales reps avoided. Every month-end close was a mess of emails and mismatched versions. Leandro identified the 3 flows that actually drove the operation and rebuilt them. Now closing errors are down, and new reps get up to speed on their own much faster.”
Francisco Ramírez
Operations Manager
“The certification system for field workers was fragmented across 4 different tools. Leandro unified the experience into a single platform and simplified the approval flows. Today we've cut administrative time, and turnover among new staff has dropped noticeably.”
Marcela Rojas
HR & Compliance Director
How I work
On product, UX/UI, and growth projects, I work in four phases: understand, choose, design, and learn. Each one ends with a concrete decision before moving on.
Step 01 of 04
I pull scattered signals together and turn them into one concrete problem.
What this phase delivers
A clear direction to start.
I pull scattered signals together and turn them into one concrete problem.
What this phase delivers
A clear direction to start.
This process adapts to product design, UX/UI, growth, SaaS, marketplace, and digital platform projects across Latin America.
Engagement models
I can solve a specific problem or join your team on an ongoing basis. We'll figure out which fits best on our first call.
For a specific product or growth problem.
Defined scope
Deliverables and success metric agreed up front
For teams that need product judgment every week.
Monthly commitment
Limited spots · max. 2 teams at a time
FAQ
With a 30-minute conversation about the problem and the data you already have. If it's a fixed-scope project, I'll follow up with a proposal covering scope, deliverables, and the metric we're going to move. If you want me embedded in your team, we agree on commitment and ways of working.
On a project, we solve one specific problem, with scope and metric defined up front, and close with a read of the results. Embedded, I join your rituals on a monthly commitment and prioritize alongside the team on an ongoing basis. If it's not clear which fits, we decide on the first call.
When growth stalls and it's not clear why: conversion drops in a key flow, users show up but don't move forward, the data says different things depending on who's looking, or the product grew faster than its structure. Especially in B2B SaaS and marketplaces.
Read access to the analytics you use (GA4, Clarity, or similar), the relevant business data, like leads and conversions, and someone from product or data to validate what I find. I never present a number without validating it with its owner first.
I design the intervention and, when the decision calls for it, I build a working prototype with coding agents to test it before committing your dev team. Your team handles the production build, with a handoff that needs no translation.
Contact
Tell me what's going on or what you'd like to improve. You don't need a diagnosis ready.
Clear design for people who want to understand what they're using.
Leandro Balbian
Product · Growth · Design
Contact
leandrodesign.ux@gmail.comLooking for someone who turns ideas into clear, working product experiences? Let's talk.
Start a project