I’m César Hernández.
Technical product management with hands-on software development — now augmented with AI.
Products and systems that best show the work I do.
01
A wallet for collecting funds and paying education providers across countries and currencies. Agencies could hold balances, reduce FX exposure, and generate additional revenue through markups.
$10M+ annual payments
02
A platform for agencies to issue and manage student insurance policies in minutes, add markups, and collect payments directly from students, with commissions paid monthly.
1,200+ monthly bookings
03
A platform for education agencies to search and quote courses, manage customers and sales, and guide the quotation process from one place. It combined quoting tools, CRM, pricing, and structured data entry.
100+ active agencies
Blog
A place for ideas about software, product, technology, and where they’re heading.
Jev: A Frontier Model for Calibrated Decisions and a Different Way to Think About AI
A closer look at what we actually estimate in software projects.
Using Git Flow to keep branches, releases, and growing software projects under control.
Exploring a more semantic way to reuse styles without filling HTML with arbitrary classes.
An early exploration of what it means to think about CSS in modules.
I’m a Technical Product Manager. Curiosity has taken me from design to software engineering and then to product. Each step changed how I think about what we build and how we build it. And now AI adds a new dimension.
My path wasn’t linear. I started in graphic communication design, where I learned to research and developed an appreciation for typography, visual balance, and semiotics. Around 2010, curiosity about code pulled me into software development: first designing websites with WordPress, and later building complete web applications.
In 2015, I co-founded Book&Learn. It was an opportunity to build a product from scratch and stay with it as it grew. My role grew with it, eventually leading technology at the startup. Over time, I started questioning what actually made the software valuable. I realized that building things well meant little if they didn’t solve a real user problem. Software was a means to that end.
That realization led me to product. When Book&Learn merged with Edvisor in 2020, I had the opportunity to move fully into product in a larger and more established environment, developing more rigor, better product practices, and stronger engineering processes.
Then AI came along and changed everything. I’m spending a lot of time building with it, experimenting, and trying to understand how product and software evolve. I’m also starting a Master’s degree in AI applied to finance and looking for a new role.
At the same time, AI raises broader questions that touch on technology, economics, philosophy, and society, subjects I’ve been interested in for a long time. AI brings both excitement and uncertainty. I don’t have answers to many of those questions, but I think the direction worth pursuing is one where AI expands what people are capable of, rather than simply replacing them.
Contact
Is there something we could build together? I'm available for full-time opportunities and selected projects.