Ruairi O'brien
Principal Software Engineer at C.H. Robinson
Minneapolis, Minnesota, United States
Summary
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Senior🎓
Top SchoolRuairi O'brien is a Principal Software Engineer with 12 years of experience building reliable systems across Java, Scala and JavaScript, currently leading engineering at C.H. Robinson in Minneapolis. He has progressed from developer and co‑founder roles to senior technical leadership and machine learning engineering positions, bringing a pragmatic blend of Test Driven Development discipline and hands‑on implementation. His background includes high-impact stints at Spotify, Dell EMC and McKesson, where he focused on scalable architectures and mentoring engineering teams. Comfortable switching between backend, data/ML and platform work, he pairs deep technical craft with a track record of shipping production software in both startup and enterprise contexts. An early entrepreneur and former barman, he combines practical problem-solving with strong team leadership and a continual drive to improve his craft.
12 years of coding experience
12 years of employment as a software developer
Leaving Certificate, Leaving Certificate at Colaiste an Spioraid NaoimhBachelor of Science (Honours) Computer Science, Bachelor of Science (Honours) Computer Science at Institute of Technology
Stackoverflow
1,219reputation
204kreached
17answers
22questions
Github Skills (60)
github-api-v310
python10
pygithub10
infrastructure10
dx10
github-api10
microservices10
java9
github9
spring-boot9
backstage9
d3js9
shell8
angular8
spring8
Programming languages (9)
Github contributions (5)
ruarfff/nathaniel
Jan 2018 - Nov 2025
Contributions:1 push, 2 branches in 7 years 11 months
ruarfff/algorithms-in-java
Aug 2015 - Jul 2020
Contributions:9 pushes, 1 branch in 4 years 11 months
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