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mahmutyum/README.md

Hi, I'm Mahmut Yum 👋

Senior DevOps / DevSecOps Engineer
Infrastructure Security · CI/CD · Cloud & Network Security · Release Governance

🟢 Available for DevOps / DevSecOps consulting engagements — remote, worldwide

Location Email Website Localsistem Profile views

🧭 About Me

I'm a technology professional focused on infrastructure and network security, integrating DevOps and DevSecOps culture into enterprise release processes. I have end-to-end planning, deployment and operations experience across Linux systems, cloud infrastructure, CI/CD pipelines, firewall/DMZ architectures, reverse proxies, load balancing and database replication.

  • 🔐 Release governance, post-pentest findings analysis and remediation management for enterprise projects
  • ⚙️ Secure, observable and highly available infrastructure; structuring test/staging/production workflows
  • 🏗️ Founder & Technical Consultant @ Localsistem LLC (2018 – present)
  • 💬 Ask me about DevSecOps, network security, CI/CD and secure service publishing

🛠️ Tech Stack

CI/CD & DevOps
GitHub Actions GitLab CI Jenkins Docker Kubernetes Terraform Ansible

Cloud & Monitoring
AWS Azure GCP Oracle Cloud Cloudflare Grafana Prometheus

Network & Security
Fortinet Palo Alto Juniper MikroTik Vault SonarQube Trivy WAF / DMZ / VPN

Infrastructure & Application
Linux Red Hat Ubuntu VMware Proxmox Nginx HAProxy PostgreSQL MySQL PHP .NET Core

💼 Experience

Role Company Period
IT Manager & DevOps / DevSecOps Manager Pluscom İletişim A.Ş. Jun 2025 – Jul 2026
Founder / Technical Consultant Localsistem LLC 2018 – Present
Server & Operation Manager Hostazor Bilişim Teknolojileri 2016 – 2020
Server & Operation Manager Ömür Bilişim Teknolojileri 2014 – 2016

Consulting clients include Koç Emeklilik Vakfı, Borusan Holding, Borusan Cat, Borusan Pipe USA, Enerjisa Üretim, SOCAR, Kumport and Hyundai Motor Türkiye.

📜 Certifications & Languages

CCNA CCNP White Hat Hacking

🌍 Turkish — Native · English — C1 (Advanced) · Arabic — B1 (Intermediate)

📊 GitHub Stats

GitHub Stats Top Languages

GitHub Streak

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