// hello, world
I design and ship reliable services — APIs, event pipelines, and data infrastructure. Currently focused on distributed systems and developer experience.
Motivated backend engineer with 8 years experience designed, developed, tested and maintained scalable and stable applications and custom-built technology solutions. Identify a specific legacy system set of business capabilities and create a prototype application to operate in a cloud environment.
Collaborate with technology peers on design/development/support phases of projects and through the implementation and production support phases.
Lately I've been working on ingest pipelines, search infra, low-latency APIs, whatever fits. Outside of work, I write about systems on my blog
Real-time systems I've built end-to-end. Each card highlights the problem, the stack, and a couple of implementation details.
Two-service chat with live presence & typing
A chat-service and presence-service on Quarkus, backed by PostgreSQL. RabbitMQ fans messages between the services while Redis tracks who's online and who's typing — both streamed to the browser over WebSocket. The whole stack comes up with one Docker Compose command and deploys to Railway.
Real-time GPS tracking pipeline
A NestJS service where devices stream GPS fixes over WebSocket. The gateway authenticates with JWT, throttles to 1 Hz, and broadcasts live to authorized subscribers — then fans each fix through RabbitMQ to a consumer that batch-inserts into PostgreSQL. Ships with a Leaflet dashboard and Prometheus metrics behind nginx.
Eight years designing and maintaining scalable backend systems and APIs across accounting, fintech, and POS products.
The fastest way to reach me is email. I read every message and reply within a couple of days.
$ echo "let's build something"
I'm open to backend / platform roles, freelance work, and interesting OSS collaborations.
hilminico@gmail.com →