Christopher O'brien
Technical Architect (Consultant) at HM Revenue & Customs
Brighton, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolChristopher O'Brien is a Technical Architect and hands-on engineering leader with nine years’ experience designing and delivering mobile-first and cloud-native systems across PropTech, government, healthcare and betting industries. He combines deep mobile expertise (iOS/Android/tvOS/WatchOS) with Java/Scala back-end architecture, Spring Cloud microservices and AWS-centric DevOps to turn product goals into scalable, production-grade platforms. As a former CTO and lead engineer at high-growth startups, he blends product empathy with engineering discipline—advocating close collaboration between engineering and business to ship fit-for-purpose solutions. Notable delivery highlights include leading Patch to top App Store rankings and architecting the NHS COVID-19 QR check-in app, showing an ability to move rapidly from concept to widely used public systems. Based in Brighton and originally from Ireland, he brings pragmatic leadership, strong mentoring experience and a bias for automated testing and continuous delivery.
9 years of coding experience
10 years of employment as a software developer
Certificate, Cisco IT Essentials, A, Certificate, Cisco IT Essentials, A at Tipperary Institute, Thurles, Co. Tipperary.BSc. Business Information Systems, Information Technology, First Class Honours, BSc. Business Information Systems, Information Technology, First Class Honours at University College Cork
English
Github Skills (23)
kotlin10
kotlin-jvm10
ntp10
kotlin-multiplatform10
jvm9
ios9
android9
clock9
kotlin-library9
swift8
multiplatform8
macos6
objective-c6
cocoapods5
owl3
Programming languages (7)
Github contributions (5)
hmrc/help-to-save-kalculator
Feb 2021 - Dec 2022
Contributions:18 releases, 3 reviews, 51 commits in 1 year 10 months
hmrc/tax-kalculator
Oct 2019 - Dec 2022
Kotlin Multiplatform Project for calculating take-home pay 💰
Contributions:38 releases, 23 reviews, 85 commits in 3 years 1 month
paytake-homekotlin-multiplatformandroidjvm
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