Dylan Cali
Site Reliability Engineer, Enterprise Technology at Hudson River Trading
New York, New York, United States
Summary
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Senior🎓
Top SchoolDylan Cali is a Site Reliability Engineer with 15 years of experience building developer-focused infrastructure that lets teams iterate quickly and reliably. He has led platform and tooling efforts at firms ranging from high-frequency trading and banking to Meta and Hudson River Trading, driving CI/CD, observability, and automation to reduce toil and improve velocity. A hands-on systems engineer, he’s contributed to core open-source projects like ZeroMQ—refactoring internals and fixing tricky unbind/wildcard networking bugs—demonstrating deep competence in low-level distributed systems. Dylan blends pragmatic platform design (AWS, Kubernetes, Dagster, Prometheus) with developer ergonomics, having created custom devcontainers, build frameworks, and migration tooling to modernize workflows. Known for translating operational pain into engineered solutions, he’s pursuing roles that let him grow as a leader in developer productivity and infrastructure reliability.
14 years of coding experience
13 years of employment as a software developer
University of GalwayBachelor of Arts (B.A.) Computer Science, Bachelor of Arts (B.A.) Computer Science at Canisius University
English
Stackoverflow
1,471reputation
110kreached
9answers
11questions
parsing
top-5%
prompt
top-5%
Github Skills (27)
c-language10
zeromq10
messaging10
testing10
mq10
c1110
networking10
c1710
cprogramming-language10
concurrency10
prompt9
lib9
apidoc9
perl9
code-library9
Programming languages (18)
Github contributions (5)
zeromq/zeromq4-x
Oct 2013 - Jun 2015
ØMQ 4.x stable release branch - bug fixes only
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 commits, 4 PRs in 1 year 9 months
Contributions summary:Dylan contributed to the core functionality of the ZeroMQ library by refactoring macro constants to enum types, enhancing code readability and maintainability. They also introduced tests related to unbinding endpoints, particularly focusing on wildcard and inproc endpoints. Additionally, the user backported fixes from the libzmq repository addressing issues with the `zmq_unbind` function, resolving ENOENT errors and addressing wildcard endpoint unbinding problems.
fixeszeromqmessage-queuemq-4messaging
zeromq/libzmq
Oct 2013 - Feb 2019
ZeroMQ core engine in C++, implements ZMTP/3.1
Role in this project:Back-end Developer
Back-end DeveloperContributions:13 commits, 7 PRs, 3 comments in 5 years 5 months
Contributions summary:Dylan primarily contributed to refactoring and improving the codebase of the libzmq library. They replaced macro constants with enum types, enhancing code readability and maintainability. Additionally, the user added and modified tests for unbind functionality, which directly tests the core networking functionality of libzmq. These changes suggest a focus on improving the internal structure and reliability of the library.
concurrencyzeromqnetworkingstreampushpull
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