Field notes / 01 · Juan Castro
I make useful software and the systems behind it—from product experiences and developer tools to infrastructure. I want to understand how the pieces work, where they meet people, and what makes them dependable.
My path runs through military service, data operations, Linux and cloud systems, SaaS engineering, and product software. That range keeps me interested in both the human task and the technical edges around it.
Employed · Full-Time
Human study / three working lenses
02 / How I work
01
Make an idea tangible: a useful tool, a clearer workflow, or a product someone can use.
02
Understand the boundaries and operating conditions around the code, not only the happy path.
03
Stay curious, move between disciplines, and keep learning by making things.
03 / Selected chapters
Different environments, one recurring question: how can the work become clearer and more useful?
RSR GROUP
As a Software Developer III, I spearheaded a data service migration to a new platform and created new business reports using Django/Python. Additionally, I optimized internal processes by developing enhanced functionality with JavaScript/React.
Streamlined development processes by developing and presenting a Git workflow productivity strategy to leadership, resulting in a 30% reduction in development time.
Earlier systems and operations work
Senior Infrastructure Engineer
Systems Architect
Backend Developer / Data Operations
Military Service
04 / Working range