How I Became an Apocaloptimist Engineer
What AI changed in my day to day as a software engineer, why I have more energy for the job rather than less, and where I sit between the doomers and the boosters.
felice geracitano
Engineering notes
Software, systems, and things learned by building.
All writing
11 articles2026
Rust, Learn Rust
A tiny invitation to learn the basics of Rust.
Go, Learn Go
A tiny invitation to learn the basics of Go.
Python vs Go vs Rust
The same I/O-bound ecommerce API in Python, Go, and Rust: latency, throughput, CPU, and memory under equal Docker limits and k6 load.
Strangling a 15-Year-Old Monolith: Black-Box Parity Testing in Production
Treating a legacy monolith as an oracle: black-box parity tests, gradual FastAPI migration, and zero-downtime cutovers.
2020
Zero to Streaming Application — Infrastructure
The containers, schema setup, and GitHub Actions behind a Kafka-powered car-sharing proof of concept.
Zero to Streaming Application — Backend
Building a streaming backend with Kafka, Kotlin, Spring, and Cassandra for a real-time car-sharing application.
Zero to Demo Streaming Application — Frontend
Building an interactive car-sharing frontend with Svelte, RxJS, Mapbox, and live location updates.
2019
Web Performance Monitoring Tools
Putting Lighthouse, InfluxDB, and Grafana together to track web performance over time.
2018
Multicasted Observables in RxJs
Exploring cold and hot observables, shared producers, and side effects in RxJS.
Brotli compression delivered from AWS
An early approach to serving Brotli-compressed assets through Amazon S3, CloudFront, and Lambda@Edge.