Yavuz Topsever

• Run 180+ Rocky Linux 9 hosts, a 10-node Proxmox VE cluster, a Windows Server/AD domain and a Cisco/Dell spine-leaf network • Full physical data-centre migration within a 3-day downtime window • Zero-touch provisioning via iPXE/Kickstart and Ansible; changes deployed through GitLab CI/CD • Linux hosts joined to AD via Samba/Winbind/PAM • Monitoring with Graylog, SNMP and Grafana; PCoIP remote workstations

• Built and maintained Java and Python test-automation systems for card-payment platforms (transactions, chargebacks, fraud detection), running in CI/CD pipelines in a regulated environment • Automated result collection and reporting; QA and system metrics on Power BI dashboards for engineering leads

• Automated the monthly Group-wide Limit Run in Python • Scripted analysis of server and directory structures to scope a large data migration • Reporting models and dashboards in R and Power BI/DAX for executive stakeholders

• Deployed, configured and integrated SAP PP/PS systems for defence-sector clients across two production sites • Custom ABAP for data extraction and cross-module integration • Cutover and post-go-live stabilisation under production change-control

Graduate coursework in stochastic calculus, financial modelling and risk theory. Discontinued without completing the degree to commit full-time to IT infrastructure and systems engineering.

Anabin-recognised degree. Core: algorithms, linear algebra, numerical analysis, computational problem-solving.