Client: BusiBeez (Ireland) Role: Lead DevOps Engineer Overview: Designing and implementing a full-scale, GitOps-based microservices infrastructure on Kubernetes. The platform is engineered for scalability, observability, and automation across development, testing, and production environments. Key Responsibilities: ✅ Architected multi-environment Kubernetes infrastructure on DOKS with secure ingress, TLS, and namespace isolation. ✅ Led the design of CI/CD pipelines using CircleCI, featuring selective image builds and ArgoCD syncs based on Git diff analysis. ✅ Created a centralized GitOps structure with reusable Helm charts and per-service override logic using .Values.serviceName. ✅ Deployed and managed ArgoCD as a GitOps control plane, including TLS-secured UI, per-environment branch tracking, and drift detection logic. ✅ Engineered observability stack with ELK via Helm and Fluent Bit DaemonSets, including structured log tagging by service/environment. ✅ Integrated cert-manager and DNS automation for fully automated TLS provisioning across all exposed services. Strategic Outcomes: ✅ Achieved scalable, fully-automated deployments with minimal manual intervention. ✅ Established GitOps standards across environments with CI-driven sync triggers. ✅ Laid foundation for production-grade monitoring, alerting, and recovery systems.