$ whoami

Zan Baldwin

Senior Software Engineer: Rust · PHP · Systems

Sixteen years of production experience, from software supply chain infrastructure at Packagist to healthcare compliance, fintech regulation, and high-traffic event platforms. Experience in scalable API design, security-sensitive systems, and open-source community leadership.

After over a decade climbing from junior to conference keynotes, I enjoyed the ascent to the top of the PHP world more than being there; I'm making that climb again in Rust. Strongest where correctness matters more than shipping speed.

Resume

screen (dark): resume.pdf
print (light): print.pdf

Projects

zanbaldwin/fakesky
in progress
Hands-on did:plc tamper-detection training on a web platform that teaches ATProto identity-attack recovery by doing it yourself: real commands on throwaway identities.

Rust · Axum · Pingora
zanbaldwin/atshield
cryptographically-verified tamper-detection for ATProto
Re-verifies every did:plc operation from scratch: canonical DAG-CBOR, strict low-S ECDSA, attributes each change to its signing key, and validated against the official interop vectors.

Rust · library + CLI
- github.com
- crates.io
darsyn/ip
128-bit byte-level IP address library
Author and maintainer since 2015, six major versions, Doctrine integration, dependency-free. Aligned with the IANA special-purpose registries. One codebase, tested across ten PHP runtimes (7.1–8.5) and verified by ~6k tests, under strict SemVer and static analysis.

PHP · 2M+ installs · ~35k/month
- github.com
- packagist.org
zanbaldwin/rawr
content-addressed offline archival tool
BLAKE3-addressed content storage, compile-time typestate-enforced state machine, Tokio streaming, pluggable local/S3 backends.

Rust · 11-crate workspace
- github.com

Resume

Projects

zanbaldwin/fakesky

zanbaldwin/atshield

darsyn/ip

zanbaldwin/rawr

Links