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AngelosFikias0/README.md

Angelos Fikias

Platform engineer focused on cloud-native infrastructure, automation, and scalable system architecture. I build and operate platforms end to end - from cluster ownership to production delivery.

Stack

Kubernetes Docker Helm ArgoCD Jenkins GitHub Actions Prometheus Grafana PostgreSQL Linux Azure

Experience

Associate Platform Engineer | Dataviva (Oct 2025 - Present)

Building and operating cloud-native infrastructure for a B2B SaaS product in retail forecasting and supply chain - from initial platform ramp-up through full production ownership.

  • Designed and built a Kubernetes-native E2E load and performance testing platform (Playwright, Artillery) from scratch, running production-scale tests with 150+ concurrent users. Findings drove backend architecture redesigns ahead of enterprise client launch.
  • Manage CI/CD pipeline architecture org-wide (Jenkins, GitHub/Gitea Actions) and contribute to a full version-control platform migration across engineering teams, including workflow design and team training.
  • Improved backup and recovery processes for critical production systems through hands-on testing and analysis.
  • Operate multi-cluster Kubernetes infrastructure (K8s, K3s, ArgoCD GitOps, Helm, RBAC) spanning dev, staging, and production, with Docker-based workloads throughout; build and own internal developer tooling and organization-wide technical documentation.
  • Own end-to-end incident response and production support across internal, client, and multi-environment deployments, using Prometheus/Grafana and Linux-level diagnostics for monitoring, logging, and root cause analysis.

Connect

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  1. linux-lab linux-lab Public

    A hands-on Linux internals lab covering the kernel and system programming layer - processes, memory, filesystems, networking, and security, built up from first principles.

  2. docker-lab docker-lab Public

    Docker engineering lab: container primitives, internals and production patterns

    Shell

  3. jvm-lab jvm-lab Public

    Hands-on Java demos covering JVM internals, memory management, and garbage collection. Each class is self-contained and runnable with specific JVM flags to observe the behavior described.

    Java

  4. resource-management-system resource-management-system Public

    EfficienCity - RMS is a centralized platform designed to help municipalities manage, track and optimize their resources, including vehicles, machinery and equipment. The system ensures efficient al…

    TypeScript

  5. tikipark-mobile-app tikipark-mobile-app Public

    Smart Android parking app in Java with PHP/MySQL backend, featuring secure role-based authentication, real-time slot management, booking, offline caching, and Google Maps integration.

    Java 4

  6. safe-car-insurance-system safe-car-insurance-system Public

    End-to-end enterprise insurance platform modeling the full policy and claims lifecycle through structured BPMN workflows, UML-driven system design, and layered Java implementation, simulating real-…

    Java