Thomas Callahan
VP Engineering - Customer Data Platform
Westlake, Ohio, United States
Summary
🤩
Rockstar🎓
Top SchoolThomas Callahan is a seasoned engineering leader with 8 years in senior roles and a deep background scaling data-intensive platforms across health tech and observability. Currently VP Engineering for a Customer Data Platform at Hightouch, he previously led 75-person organizations at Nuna and guided Elastic’s Elasticsearch team through IPO, SaaS transformation, and major security responses. He combines hands-on big-data and cloud architecture experience (Spark, Hadoop, GCP, AWS, Kubernetes) with a track record of reducing operational debt, improving customer SLAs, and institutionalizing hiring, roadmap, and promotion practices. Comfortable bridging research-quality thinking (MS/PhD work on Internet measurement) with product delivery, he’s known for turning complex regulatory and performance requirements into reliable, scalable platforms.
8 years of coding experience
14 years of employment as a software developer
M.S. PhD Computer Science, M.S. PhD Computer Science at Case Western Reserve UniversityBachelor of Science (B.S.) Computer Science, Bachelor of Science (B.S.) Computer Science at Miami University
Stackoverflow
21reputation
504reached
0answers
1question
Github Skills (41)
search-engine10
observability10
kibana10
java10
restful10
rest10
elasticsearch10
elastic10
visualizations10
etl-framework9
logstash9
streaming9
jruby9
logging9
plex8
Programming languages (7)
Github contributions (5)
tomcallahan/elasticsearch
Mar 2018 - Oct 2019
Open Source, Distributed, RESTful Search Engine
Contributions:59 pushes, 24 branches in 1 year 7 months
restfulsearch-enginedatabaseelasticsearchjava
tomcallahan/example-bad-maven
Jul 2019 - Jul 2019
Contributions:8 pushes in 2 days
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