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Closing the Bridge Between Marketing and Technology, By Luis Fernandez

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CMO & CTO

Closing the Bridge Between Marketing and Technology, By Luis Fernandez

Tag: Ab Testing

From testing to learning cultures

Posted on September 15, 2024 By Luis Fernandez

From testing to learning cultures: perspective, decisions, and practical tradeoffs. Story led opening Last month a growth team I know ran a clean split test on the sign up flow. New copy, fewer fields, one shiny progress bar. The numbers came in flat. A small lift in click through, a…

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When to stop testing and ship

Posted on March 2, 2022 By Luis Fernandez

Story led opening At 1 a.m. the Slack pings were still coming in. A junior QA found a flicker on the checkout button if the network tab was throttled to slow 3G. The fix was a one line change. The sprint was already stretched. We had a paid campaign scheduled…

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Target governance and guardrails

Posted on May 17, 2021October 21, 2025 By Luis Fernandez

Adobe Target can move a team fast and break your site just as fast. This is a note on governance and guardrails from the trenches, while consent prompts keep popping up and product teams are itching to ship. Start with a clear idea of what governance means for Target. You…

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Scaling tests without slowing teams

Posted on March 14, 2019 By Luis Fernandez

Your test suite can grow without your team slowing down. Most teams do the opposite. They add tests and watch delivery grind. Right now a lot of teams are moving more code into containers, wiring services into Kubernetes, and cranking up automation in CI. The usual side effect shows up…

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Designing good experiments

Posted on January 8, 2019 By Luis Fernandez

Designing good experiments is not about fancy math or dashboards with too many colors. It is about choosing a clear question, making a decision in advance, and being honest about trade offs. Everyone is spinning up AB tests right now. Product teams are chasing signups, growth crews want more clicks,…

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From manual rules to adaptive targeting

Posted on January 1, 2018 By Luis Fernandez

Manual rules feel good until the world shifts under your feet. If you are running growth, paid media, or email right now, you probably have a tangle of if statements and audience buckets that once worked and now show their age. Time to move from rules to adaptive targeting. The…

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Targeting strategies that matter

Posted on August 22, 2017 By Luis Fernandez

Targeting strategies that matter Everyone wants perfect targeting right now. Platforms feel loud, budgets feel tight, and there is new talk about Safari limiting tracking. So let’s get practical about what actually moves numbers. When people say targeting, they usually mean a mix of audience filters, channel choices, and timing…

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Ab testing without drama

Posted on September 2, 2016 By Luis Fernandez

AB testing without drama sounds like a fantasy on some teams. Product wants to ship fast. Marketing wants that win on the dashboard. Data folks keep saying the words sample size and significance while everyone checks the experiment every hour like it is a soccer match. Let’s dial it down….

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Adobe target for practical experiments

Posted on August 26, 2016 By Luis Fernandez

Everyone says they want smarter experiments. Very few teams get past hello world in production. Adobe Target sits in that awkward spot between promise and reality. Today I want to share the choices that actually move the needle, the ones we are making on live sites this week. If you…

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