Buğra Demir

Promoted from DevOps Engineer to Expert DevOps Engineer in Oct 2023.

• Integrated CI/CD into many projects with Jenkins, GitLab CI and Bamboo, significantly shortening build and deploy times.
• Led migrations from legacy technologies to modern, containerized platforms on Docker and Kubernetes.
• Built pipelines for a polyglot codebase (Angular, .NET, C++, C, Python and more), including applications cross-compiled for ARM.
• Ran artifact and image management on JFrog Artifactory and Harbor.
• Served AI applications in production: LLM, chat, agent, MCP, gateway and workflow services.
• Operated Elasticsearch, OpenSearch and MongoDB; monitored everything with Prometheus, Grafana, Loki, Zabbix and ELK.
• Worked across Linux and Windows; automated day-to-day work with Bash, Python, PowerShell and REST APIs; used Microsoft Azure.
• Collaborated daily in the Atlassian toolchain: Jira, Confluence, Bitbucket and Bamboo.

DevOps & Cloud team

• Installed and managed monitoring systems (Zabbix, Prometheus, Grafana, ELK, Loki).
• Managed clustered / high-availability systems and load balancers (HAProxy, Traefik, Kong).
• Managed AWS infrastructure: EC2, EKS, RDS, S3, ELB, CloudWatch and OpenSearch.
• Ran CI/CD pipelines and container platforms with Jenkins, GitLab CI, Docker and Rancher.
• Automated processes and made them repeatable with Ansible and Bash.

Systems team

• Installed, maintained and managed Linux servers (CentOS, Debian, Ubuntu).
• Managed web servers (Nginx, Apache, Caddy, PHP-FPM) and databases (MySQL, PostgreSQL, MongoDB, Redis).
• Ran e-mail systems (Zimbra, Z-Push, Proxmox Mail Gateway) and IP PBX / SIP systems (Asterisk, FreePBX, Issabel).
• Managed firewalls and Proxmox VE virtualization.

• Memorial Healthcare Group — IT Systems team (Jul 2018 — Aug 2018).
• Türk Telekom — Network System Management (Jul 2017 — Aug 2017).