Jonny Mccullagh is a Staff Platform Engineer with 12+ years building and operating large-scale Linux-based systems, from a single server as a developer to thousands of production nodes worldwide. He blends deep hands-on expertise in infrastructure (AWS, GCP, Kubernetes, Terraform, Ansible) and observability (Datadog, Grafana, Graylog) with a developer-focused approach to platform tooling and CI/CD for high-volume trading and SaaS environments. A certified Linux professional and ethical hacker, Jonny has led DevOps teams and migrations—often turning legacy VM estates into cloud-native platforms—while shipping developer-facing tools using Python and React. He’s equally comfortable in system internals or web stacks (PHP/MySQL) and enjoys solving cross-discipline problems that combine systems, dev and design. Active in the regional tech community, he mentors the next generation and organizes conferences and meetups, bringing a curious, question-driven mindset honed since his web-design beginnings in 1996.
12 years of coding experience
20 years of employment as a software developer
MSc Environmental Forestry Forestry, MSc Environmental Forestry Forestry at The University of Wales, Bangor
MSc Computing and Information Systems, MSc Computing and Information Systems at University of Ulster, Jordanstown
Certificate in Management, Certificate in Management at Newry and Kilkeel Institute of Further Education
BSc(Hons) Geography Geography, BSc(Hons) Geography Geography at Queen's University Belfast
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