Endre Czirbesz

– Designed to support multiple concurrent client engagements with flexible, outcome-focused delivery – Clients contract directly with the company, not the individual - providing commercial clarity and tax efficiency for both parties

– Delivered 20-30% infrastructure cost reductions across a complex post-merger consolidation – Embedded Al-assisted tooling into migration and optimisation pipelines, improving decision speed and reducing manual analysis overhead – Automated infrastructure consolidation workflows, materially reducing operational risk – Applied predictive resource optimisation and data-driven cost analysis at enterprise scale

– Maintained 24/7 platform availability as primary on-call contact – Delivered knowledge transfer programme to the engineering team – Upgraded EKS cluster from v1.21 to v1.24 ahead of AWS deprecation deadline

– Introduced Terragrunt/Terraform IaC, replacing ad hoc infrastructure with a structured, maintainable solution – Built and maintained CI/CD pipelines; migrated from BuildKite/Packer to GitHub Actions – Implemented WireGuard VPN with Google SSO for secure employee remote access – Designed and developed Oracle Micros Simphony payment middleware PoC using Quarkus/Kotlin and gRPC

– Designed and led development of the backend API (Spring Boot, Neo4j) – Architected and built the full CI/CD and IaC stack from scratch: Terraform, Kubernetes (EKS/GKE), FluxCD, Helm, Jenkins – Established GitOps practices and observability stack (Prometheus, Grafana, Elasticsearch, Fluentbit, Kibana) – Reduced infrastructure costs through Spotinst spot instance management

– Designed and developed an AWS-native application framework and API for a cloud services startup.

– Designed and built the backend of a web portal builder for an in-flight entertainment industry leader. Won internal company Hackathon (December 2014) with Android app entry.