Cass Costello
Senior Principal Engineer at The Walt Disney Company
Castro Valley, California, United States
Summary
👤
Senior🎓
Top SchoolCass Costello is a hands-on technology leader and Senior Principal Engineer with 12 years of recent focused experience modernizing large-scale distributed systems and cloud platforms. Based in Castro Valley, she has led transformative migrations and developer productivity initiatives at companies including The Walt Disney Company, Clari, Crunchyroll and Sony, driving adoption of Kubernetes, CI/CD, IaC and SRE/DevSecOps practices. Her work blends strategic architecture (ADR/RFC-driven decision-making, DORA metrics) with pragmatic delivery—reorganizing monoliths into independently deployable services and standardizing ephemeral test environments for teams. She’s repeatedly overseen global cloud estates and tooling for hundreds of services and engineers, pairing cost, security and compliance disciplines with platform velocity. Notably, she has a track record of turning ambitious organizational engineering changes into measurable operational gains rather than one-off projects.
12 years of coding experience
24 years of employment as a software developer
Computer Science, Computer Science at University of California, Berkeley
English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (19)
newline10
sink9
splits9
sasl9
client-library9
producer9
offset9
delimited9
tcp8
java7
kafka7
broker6
replication5
graphite4
graphql3
Programming languages (1)
Github contributions (5)
krux/tcp-stream-kafka-producer
Jun 2014 - Sep 2015
Splits newline-delimited TCP streams into Kafka messages
Contributions:1 release, 85 commits, 6 pushes in 1 year 3 months
sinkdelimitednewlinestreamssasl
krux/java-kafka-client-libs
Sep 2014 - Oct 2015
The Krux Kafka Client library as a simple wrapper for the Kafka-provided client libraries, both producers and consumers
Contributions:63 commits, 3 pushes, 1 comment in 1 year 1 month
kruxclient-libraryconsumersproducerclient-libraries
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