Product · Rails 8 2026
Renovacreto
Payroll and project-tracking platform for a construction company. Org hierarchy, lot-by-lot build progress and a payroll engine that handles reconciliation + auditing.
Software Engineer
I spent four years at Google keeping planet-scale systems fast, cheap, and boringly reliable. Now I build products end-to-end for the people who need them.
Payroll and project-tracking platform for a construction company. Org hierarchy, lot-by-lot build progress and a payroll engine that handles reconciliation + auditing.
Brand identity, design system, and site built for lab404, a design studio client. Design and front-end delivered end to end.
Google's global authorization system. Designed a serving strategy that cut storage cost 90% at 150M QPS, launched a C++20 bulk upload service moving billions of records a day, and led schema migration for petabytes across thousands of databases.
Re-architected LLVM's test-case reducer. The rewrite runs 10× faster and produces 3× smaller cases than Bugpoint; the community proposal behind it became the foundation for the tool that shipped.
I write critical software that matters.
At Google, I owned services handling >300M queries per second (QPS). So every line needed to be thoroughly tested; otherwise things break and people notice. That mindset carried over to my product work.
The company (whose payroll system I built): doesn't care about latency graphs, they care that the crew gets paid correctly and on time.
These days I work independently, leaning hard on AI tooling to move at a pace that used to need a team.
Open to freelance work, contract engineering, and interesting full-time roles.
hola@diego.tf