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cspinetta/README.md

👋 Hi, I'm Cristian

I'm a Senior Software Engineer with 13+ years of experience designing and operating distributed systems where reliability, scalability, and security matter.

Currently at Amazon (Ring), I lead the development of core components of a large-scale end-to-end encryption system spanning devices, cloud infrastructure, and client applications, supporting millions of users globally.

My background is rooted in high-throughput backend systems and fault-tolerant infrastructure. I've spent years working on systems that must remain correct and available under high load, partial failures, and strict latency constraints. That work has included improving performance by orders of magnitude, designing architectures that reach 7-8 nines of availability, and diagnosing production failures across network, JVM, and system boundaries.

Outside of day-to-day production work, I explore applied cryptography with a practical mindset. I focus on techniques that can realistically be integrated into large-scale systems and real production environments, and I'm currently deepening my hands-on experience with zero-knowledge and privacy-preserving cryptographic systems.

I believe technological progress should never come at the expense of security or privacy. I'm committed to helping organizations and open-source projects adopt new technologies confidently and securely by making advanced protections practical, accessible, and easy to integrate, especially for smaller teams without dedicated security experts.


“Security and privacy are not optional features — they are fundamental to building systems people can truly trust.”

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  1. kafka-lag-exporter-standalone kafka-lag-exporter-standalone Public

    Docker Compose with Kafka Lag Exporter + Grafana + Prometheus. Ready to ingest and viewing lag metrics.

    Shell 11 4

  2. top-threads top-threads Public

    A tiny command line tool that provides a dynamic real-time view of the active threads for a given process with stats of CPU, disk and scheduling.

    Python 4 1

  3. toy-mls toy-mls Public

    A simplified, educational implementation of the MLS protocol to experiment with core cryptographic and group key exchange concepts.

    Rust

  4. zk-labs zk-labs Public

    Hands-on experiments exploring Zero-Knowledge (ZK) systems and concepts

    Rust

  5. jon-listen jon-listen Public

    Simple and multithreading TCP/UDP Logging Server

    Rust 8

  6. triton-playground triton-playground Public

    A hands-on playground to explore Triton Inference Server, model serving, and ML infrastructure fundamentals using ResNet50 and Kubernetes components.

    Python