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demirdilek/README.md

Hi, I'm Hüseyin

Software & Site Reliability Engineer (SRE) focused on building high-performance, concurrent Go microservices and Kubernetes-native infrastructure.

Core Tech Stack

  • Language: Go (Golang) — Primary language for building concurrent, low-latency microservices.
  • Orchestration & Infrastructure: Kubernetes, Helm, Argo CD (GitOps), Docker, Linux.
  • Observability & SRE: Prometheus, Grafana, Alertmanager, 4 Golden Signals, Multi-Window SLO Burn Rates.
  • Development Workflow: Terminal-driven development with Vim & CLI-first toolchains.

Key Projects

  • kube-prober A zero-coordination, Kubernetes-native probing engine built in Go. Features a Dual-Informer architecture (EndpointSlice + StaticTarget CRDs), stateless Rendezvous Hashing (HRW) sharding, multi-protocol health monitoring (HTTP, TCP, TLS, gRPC, DNS), and automated 4 Golden Signals telemetry with diagnostic hints for Prometheus and Alertmanager. Documented with 23 Architecture Decision Records (ADRs).

Highlights & Engineering Principles

  • High Availability & Resilience: Production-grade deployments leveraging PodDisruptionBudgets (PDB), HorizontalPodAutoscaler (HPA), and TopologySpreadConstraints.
  • Stateless Distributed Sharding: Rendezvous Hashing across replicas to eliminate duplicate network probes under dynamic horizontal scaling.
  • GitOps-First: Continuous Delivery and declarative cluster state reconciliation managed via Argo CD.
  • Minimalist & Hardened Runtimes: Multi-stage scratch base images running non-root (nobody) with read-only root filesystems and dropped capabilities.

Navigating Linux with Vim, one shortcut at a time.

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  1. kube-prober kube-prober Public

    Lightweight, K8s-native probing controller in Go. Dynamic EndpointSlice discovery, 4 Golden Signals telemetry, SRE error classification and GitOps integration.

    Go 3