Osvaldo Fernandez Senior Product Manager

I go deep on the problem, so we can ship with what we still don't know.

Each case separates three things: what the brief said, what I decided at the time, and what I think today.

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Osvaldo Fernandez

Cases

Selection exercise, August 2026

Halcyon DME Ops: from a fragile spreadsheet to a tracked order

Build around the deleted: form inserted: order.

A small medical-supply distributor runs every order through one fragile Excel file. I framed the problem, compared three approaches, picked one and prototyped it in 72 hours.

Read the case

Real work

Field operations platform: as-is and in production

Key decision: to be written.

How the process worked before, what changed, and how the product runs today.

Case being written

Real work

Before and after the trial

Key decision: to be written.

What the team believed going into a trial, what the trial showed, and what changed after.

Case being written

Real work

From a legacy point of sale to a web subscription product

Key decision: to be written.

Re-engineering a desktop point-of-sale system into a web product sold by subscription.

Case being written

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