Sergio Fernández

@geiser
2 Followers
7 Following
52 Posts
Staff Engineer.
More than a decade of experience as Software/DevOps engineer in the Streaming/ISP/Managed Services/Hosting/Data Science/Hardware sectors... and still learning every day ♾️
homepagegeiser.cloud
B2CC - Claude Code is your customer

Why AI agents like Claude Code are becoming the most important customers SAAS platforms in 2026 and beyond.

Good write-up for tips on code reviews https://www.seangoedecke.com/good-code-reviews/
Mistakes I see engineers making in their code reviews

In the last two years, code review has gotten much more important. Code is now easy to generate using LLMs, but it’s still just as hard to review. Many software…

And yes, you're having too many metrics for your system https://staysaasy.com/management/2025/08/02/metrics.html interesting to think about having slots in meetings to really discuss them
You Have Too Many Metrics

What's in a measurement?

Stay SaaSy
Yep, those are the managers I look up to https://scottkosman.com/post/blog/so-youre-a-manager-now/
So You're A Manager Now.

Advice for first-time managers from someone who learned it the hard way, cleaned it up, and passed it on.

scott kosman
Live coding sucks

Live coding measure stress, not coding skills

Mustapha Hadid

The higher you climb the ladder, the more you understand that not every technical issue was really your fault.

If I could go back time and tell that to my younger self...

Now reading the Staff Engineer's Path by Tanya Reilly. It hits deeper than I thought

https://leerob.com/vercel Nice recap, we should learn too
5 Things I Learned From 5 Years At Vercel | Lee Robinson

Here are some of the lessons I learned and how I grew as a leader and manager, as well as a bunch of behind-the-scenes photos.

From AI to Agents to Agencies: The Next Evolution of Artificial Intelligence

Two years ago, I wrote about the transformative potential of AI Agents - autonomous systems that could break down complex tasks and execute them without constant human intervention.

Nishant Soni
Ask HN: How to Deal with a Bad Manager? | Hacker News

It resonates with me in terms of what I would like to see too in Kubernetes 2.0: https://matduggan.com/what-would-a-kubernetes-2-0-look-like/
What Would a Kubernetes 2.0 Look Like

As we approach the 10 year anniversary of the 1.0 release of Kubernetes, let's take stock of the successes and failures of the project in the wild. Also what would be on a wish list for a Kubernetes 2.0 release.

matduggan.com