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Halil İbrahim Dürmüş

Halil İbrahim Dürmüş#

DevSecOps Engineer

Türkiye · I'd rather argue about a threat model on day one than patch a breach on day ninety.


Who I am#

I'm a DevSecOps-focused engineer. The core of my work is making security a native part of the pipeline rather than a bolt-on layer: embedding image scanning, signed artifacts and policy-as-code gates into CI/CD; building reliable, scalable and observable platforms on Kubernetes; managing infrastructure as code with Terraform/OpenTofu; and making everything visible through metrics, logs and traces.

My approach is opinionated and action-first: if a tool is no longer recommended in 2026, I say "don't" — I don't stay neutral. "It works" isn't enough — it has to survive production, oncall and audit.

What I do#

  • Platform & Kubernetes — production-ready clusters, HPA/VPA/KEDA, multi-tenancy, secure defaults.
  • GitOps & CI/CD — pull-based reconciliation with ArgoCD/Flux, fast and safe pipelines.
  • DevSecOps — SLSA/SBOM, cosign signing, Trivy scanning, Kyverno/OPA policy, Falco runtime.
  • Observability & SRE — OpenTelemetry, Prometheus, SLO/error budgets, incident response.
  • IaC & Cloud — Terraform/OpenTofu modules, drift management, AWS.
  • Compliance (TR/EU) — KVKK, GDPR, ISO 27001, SOC 2 — with engineering controls.

Philosophy#

"Style is not personal taste — it's a service. A consistently written repo reads like a single file even at 1,000 pages."

Good engineering is what's repeatable, measurable and handoff-able. Discipline over heroics; runbooks over one-off fixes; reproducible builds over "worked on my machine".


Stack & Skills#

Kubernetes Docker Helm Kustomize Terraform OpenTofu ArgoCD Flux GitHub Actions GitLab CI AWS Cilium / eBPF Gateway API Prometheus Grafana OpenTelemetry Loki / Tempo PostgreSQL Patroni Vault / ESO Trivy Cosign / SLSA Kyverno / OPA Falco Wazuh SIEM Ansible Python Bash KVKK / GDPR vLLM / RAG
  • The DevSecOps Handbook


    A DevSecOps handbook with deep TR/EU regulatory coverage — 21 topics, 134 deep-dives, 85K+ lines. This site itself.

    Explore

  • databases-stack


    A one-command self-hosted stack for 4 databases + backup automation + Google Drive sync.

    Repo

  • api-sentinel


    Third-party API schema change detection — plugin-based, severity-aware.

    Repo

  • All projects


    file-crypter, wakapi-admin, cheat-sheet and more.

    github.com/halilibrahimd27


Get in touch#

For collaboration, opportunities or a question — reach out.

s.ibrahimdrms@gmail.com LinkedIn GitHub