Sean Oreilly
Chief Technology Officer @Toap - Tokens Of Appreciation Protocol
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WORK HISTORY
Chief Technology Officer @Toap - Tokens Of Appreciation Protocol
EDUCATION
Angmering Sixth Form College Worthing
English, Maths; Economics
Chatsmore Catholic High School Worthing
Maths English Literature/Language Physics Biology History Geography; Drama Religious Education
SKILLS
ABOUT SEAN OREILLY
Principal Platform Engineer / Cloud Architect with 20+ years of experience designing and operating large-scale distributed systems across regulated and high-availability environments. Deep expertise across AWS, Google Cloud Platform, and Azure, with recent focus on building enterprise-grade platforms on GCP.Specialist in Kubernetes-based platform engineering, GitOps, and secure multi-cluster architectures. Proven technical leader in designing Internal Developer Platforms, defining cloud landing zones, and implementing governance frameworks spanning IAM, networking, encryption, CI/CD, and workload security.Extensive hands-on experience with AWS (EKS/ECS/VPC/IAM), GCP (GKE/VPC/IAM/KMS), and Azure (AKS), alongside Istio Ambient Mesh, Kubernetes Gateway API, Terraform/OpenTofu, GitLab CI/CD, and ArgoCD.Comfortable operating at Staff/Principal level across architecture, security, developer experience, and reliability — bridging platform, product, and security teams to deliver production-grade cloud foundations.
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