Liam O'brien
Freelance
Munster, Ireland
Summary
👤
Senior🎓
Top SchoolLiam O'brien is a versatile IT professional with 9+ years of experience delivering technical application support, database development, and ITIL-driven incident and major incident management across manufacturing, finance, education and software sectors. Now freelancing after roles at Microsoft, BNY Mellon and Fujitsu, he blends deep Windows/SQL/Oracle system administration and PowerShell scripting with technical delivery and project coordination skills. He pairs hands-on troubleshooting (Level 3 support, migrations, upgrades and data-centre moves) with clear technical authoring and mentoring, ensuring smooth UAT, go-live and BAU transitions. Recently retraining in digital marketing (SEO, PPC, analytics), he brings an unusual combination of backend systems rigour and digital growth awareness. Comfortable liaising with third-party vendors and customers, he is methodical, dependable and customer-focused, and openly seeks feedback to improve outcomes. An experienced planner for complex migrations and major-incident responses, he often acts as the bridge between technical teams and business stakeholders.
9 years of coding experience
13 years of employment as a software developer
Certificate in Digital Enterprise, Digital Marketing, GPA: 3.0, Certificate in Digital Enterprise, Digital Marketing, GPA: 3.0 at Institute of Technology BlanchardstownProfessional Diploma in Digital Marketing, GPA: 3.0, Professional Diploma in Digital Marketing, GPA: 3.0 at Digital Marketing InstituteB Sc (Electronic Systems), Electronics, B Sc (Electronic Systems), Electronics at University of Limerick
Github Skills (200)
cms10
hugo10
scroll10
tray10
pdf-generation10
outliner10
esoteric-programming-language10
outlining10
knowledge-graph10
code-golf10
bytecode10
csv10
stack-based10
content-management-system10
scripting10
Programming languages (23)
Github contributions (5)
celtic-coder/intro-to-github
Sep 2022 - Aug 2024
Based on this GitHub Skills course: https://github.com/skills/introduction-to-github
Contributions:4 PRs, 2 pushes, 1 branch in 1 year 11 months
celtic-coder/dev-tritarget-org
Sep 2018 - Sep 2020
A blog of personal quality
Contributions:1 push, 1 branch in 2 years
gatsbyquality
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