Cem Gülümser

Network Production Engineer @ Meta | MSc Oxford University

Ireland

About

I am a Bilkent University Computer Science graduate and have a MSc in Software and Systems Security from University of Oxford.

Experience

  • Network Production Engineer at Meta
    Mar 2026 - Present · 4 mos

  • Senior Security Engineer at Garanti BBVA Teknoloji
    Jul 2025 - Feb 2026 · 8 mos

  • Security Software Engineer at TR7
    Oct 2022 - Jun 2025 · 2 yrs 9 mos

    • Contributed to Development of TR7 ASP (Application Security Platform), a WAF, load balancer, and IAM solution. • Used Python and JavaScript with frameworks including Django, FastAPI, Node.js, and Vue.js. • Built and integrated cloud-based services using AWS (EC2, Lambda, AMI, API Gateway, and others). • Managed microservices architecture using Docker and Kubernetes for deployment and scaling. • Worked on kernel-level components of TR7 ASP Base OS using Lua and C for networking and firewall configuration. • Implemented Redis for distributed storage and caching across platform components. • Led certification projects for EAL4+ and ISO 27001 compliance, including documentation and project management. • Designed and managed development of TR7 Portal, a SaaS platform for: License management, Support ticketing, Secure customer communication, Remote device management over encrypted channels.

  • CS115 Tutor at Bilkent Üniversitesi
    Sep 2022 - Jan 2023 · 5 mos

    • Taught CS115 students programming in Python, data structures, and algorithms at Bilkent University. • Assisted students with utilizing data analysis libraries like numpy, pandas, and matplotlib.

  • Networking & Cybersecurity Intern at SunExpress
    Jun 2022 - Jul 2022 · 2 mos

    • Assisted in monitoring network activity by analyzing SIEM and firewall logs. • Developed python scripts for network automation to streamline processes. • Contributed to team's migration to Microsoft Azure.