Eleven years.One engineer.
I'm Yeison Lapaix. Since 2013 I've been shipping software end-to-end in C#/.NET Core and Angular -- from legacy Oracle PL/SQL systems to modern multi-tenant platforms. This blog is where I write down what actually worked.
How I got here
I started in October 2013 at Caribe Media, writing software against Oracle databases and learning the hard way that "it works on my machine" is never good enough. Six years there taught me more about debugging production than any course ever could.
From there I moved through Khensys, XpertCode, and SII Concatel -- each stop a different angle on the same craft: .NET Core on the server, Angular in the browser, SQL Server or Oracle underneath, and a long list of bugs I shipped and had to fix in front of real users.
Since March 2021 I've been a Senior Full Stack Developer at VirtualMind, remote. I've written code for startups, enterprises, and everything in between. Now I write publicly about what I learned -- no listicles, no hype, just the notes I wish someone had handed me in 2013.
What I write about
Three principles guide everything on this blog. They are also how I write code.
Pragmatism
Ship what solves the problem. Skip the abstraction ladder. A working endpoint beats a beautiful framework that nobody uses.
Clarity
Plain names beat clever ones. Writing code is writing for humans -- the next human is usually you, six months from now, at 2am.
Ownership
Own the bug, the review, and the on-call page. If it has your name on the commit, it has your name on the outage.
Who writes this blog
One engineer, eleven years of shipping, one voice. No editorial committee, no ghostwriters.
Yeison Lapaix
Senior Full Stack Developer
"I write the posts I wish I had found when I was stuck on the same problem at 2am."
Why read this blog
There are a lot of dev blogs out there. Here is what makes this one different.
Real project scars, not listicles
Every post comes from code I actually shipped. If a pattern failed in production, I'll tell you how and why.
C#/.NET Core + Angular, deep not wide
I stay in the stack I use every day. Expect deep dives into Entity Framework Core, RxJS, SQL Server, and the edges where they meet.
Weekly cadence, plain English
One post per week, written to be read. No filler, no AI slop, no "10 things every senior developer should know".
Every post reviewed by code that shipped
If a snippet is in a post, it ran in production somewhere. I don't publish patterns I haven't used myself.
Education
Formal training behind the field notes.
- Mar 2023 — Sep 2025
Master's Degree in Artificial Intelligence & Big Data
IMF Smart EducationArtificial Intelligence · Big Data · Machine Learning · Deep Learning · Data Engineering · NLP - 2015 — 2017
Bachelor's Degree in Systems Engineering
Universidad Cultural Dominico-Americana (UNICDA)Software Engineering · Databases · Algorithms · Networking
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