Ruairi O'donnell
Senior Software Engineer at Wikimedia Foundation
Bertamiráns, Galicia, Spain
Summary
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Senior🎓
Top SchoolRuairi O'donnell is a Senior Software Engineer with 10+ years of full‑stack experience building web and backend systems for enterprises including Wikimedia Foundation, adidas, and Citi. He specializes in modern JavaScript ecosystems (React, Angular, TypeScript, Node) and has led large migrations and architecture reviews—most notably converting a million lines of Flash to modern JS via an AST transpiler. Ruairi pairs frontend UX work with production-grade backend services and microservices for payments, analytics and ML platforms, and has hands‑on experience with Kubernetes, AWS, Go and GraphQL. He’s mentored architects on serverless patterns and reviewed scientific mission web apps for the European Space Agency, showing a knack for translating complex domain needs into pragmatic code. A longtime trainer and course author, he brings teaching discipline to code quality, testing and security practices. Based in Galicia, he blends consulting breadth with deep implementation skills across high‑stakes government, finance and consumer projects.
10 years of coding experience
23 years of employment as a software developer
University College DublinMaster of Computer Applications - MCA, Artificial Intelligence, MSc in NLP Search Engines and application of Machine Learning techniques, Master of Computer Applications - MCA, Artificial Intelligence, MSc in NLP Search Engines and application of Machine Learning techniques at Dublin City University
Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (95)
firmware10
esp3210
javascript10
angular10
typescript10
nodejs10
3d-printing10
arduino10
react10
web-developer9
golang9
web-performance9
docker9
web-framework9
atmel9
Programming languages (9)
Github contributions (5)
RuairiSpain/BIGTREETECH-SKR-mini-E3-V1.2
Jan 2020 - Feb 2020
BigTreeTech SKR-mini-E3 V1.2 experimental firmware, use at your own risk!
Contributions:74 commits, 51 pushes in 10 days
riskuse-at-your-own-riskfirmwarev1-2
RuairiSpain/babel_es6
Jul 2017 - Aug 2017
Contributions:6 PRs, 15 pushes, 5 branches in 21 days
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