Liam O'Sullivan
Summary
👤
SeniorLiam O'sullivan is a Principal Engineer with nine years of experience building cloud-native and DevOps-first solutions, currently developing AI agentic systems on GCP with Gemini Enterprise. He has led greenfield cloud migrations that replatformed COBOL mainframe services into scalable AWS infrastructures, owning Terraform-based IaC and CI/CD pipelines as the sole DevOps engineer. His background spans telecoms 5G projects, microservice decomposition, Spring Batch ETL, and hands-on backend work, complemented by mentorship and Scrum leadership. Prior roles at IBM reinforced broad full-stack and automation skills, including test frameworks, containerization, and accessibility-focused features. Unusually for an engineer at this level, he began his career in education and production roles, giving him strong communication, teaching and process-driven instincts when guiding teams through complex technical change. Based in Ireland, he combines operational rigor with a knack for turning legacy systems into maintainable, cloud-native services.
9 years of coding experience
Github Skills (6)
brightscript8
hamcrest8
roku8
matcher7
unit-testing6
testing6
Github contributions (2)
sky-uk/roku-docs
Feb 2017 - Feb 2017
Contributions:1 push, 1 branch in 1 day
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.