cybersecurity professional

Haktan Özdemir

Identity Governance Analyst

I break things so others can't. With 6+ years securing enterprise infrastructure, I specialize in offensive security, red team operations, and helping organizations understand their real attack surface before adversaries do...

Identity GovernanceInformation SecurityAdvanced Data AnalyticsPython/SQLAdvanced Excel Techniques (Macros, PowerQuery, PowerPivot)DevOpsCloud Security
Available for engagements · Based in Istanbul, Türkiye · linkedin · github

Where I've Worked

user@sec:~/career$ cat history.log
Authorization Process and Management - Associate
January 2026 — present
Garanti BBVA · Full-time · Hybrid
  • Designed a risk scoring form to quantify the risk of bulk entitlement distributions across multiple roles, enabling data-driven evaluation before high-impact provisioning operations
  • Built Excel VBA macros to streamline repetitive email operations, applying scripting solutions within constraints of business-user tooling.
Authorization Process and Management - Analyst
August 2024 — December 2025
Garanti BBVA · Full-time · Hybrid
  • Implemented and maintaining role-based access control (RBAC) models and role matrices
  • Managed user authorization processes in a secure and sustainable way
  • Engineered a Python-based data pipeline to consolidate access review inputs from multiple upstream systems, eliminating manual data wrangling and cutting preparation time by 80% (10 days → 2 days)
  • Detected 10M+ data discrepancies between two source systems through a single cross-database SQL reconciliation query, exposing a significant synchronization gap impacting downstream governance processes
Cyber Security Project Assistant
December 2023 — June 2024
KoçSistem · Full-time · Remote
  • Worked at two different teams: InfoSec and Network Security
  • In Information Security team I worked with ForcePoint DLP solution, IBM Guardium Data Protection and ProofPoint Security Awareness Training Platform
  • In Network Security team, I have handled tickets for various products such as firewalls and VPNs
  • Automated DNS query operations using Python, reducing manual processing time from 4 hours to 5 minutes (~98% efficiency gain)
  • Participated in the Cybersecurity training prepared by the Boğaziçi Cybersecurity Community and KoçSistem.
System Engineer Intern
July 2023 — September 2023
WGuard · Internship · Remote
  • Received training on topics such as Active Directory, Windows Server, Linux Server, Backup Technologies (Veeam, Acronis), Monitoring Technologies (ManageEngine, Zabbix), Virtualization (VMWare, VirtualBox, HyperV)
  • Installed Veeam and Zabbix on virtual machines and reviewed their documentation.
  • Attended sales meetings to learn about other products
Intern
July 2022 — September 2022
Garanti BBVA · Internship · Hybrid
  • I did a short-term internship in the Authorization Processes and Management team.

Selected Work

[01]
My Portfolio Website and Deployment Pipeline
(github and blog will be Included soon)
AstroAWSGithub Actions
[02]
Open-Source and Cheap CI/CD Pipeline for Small Companies
Completely automated CI/CD Pipeline and deployed a website which contains its own authorization system. (github will be added soon)
Python-FlaskVagrantJenkinsSonarQubeKubernetesDocker
[03]
Türk Telekom Cloud Computing Camp Final Project
Manuel deployment of a website with Docker & Kubernetes
Python-FlaskKubernetesDocker

Academic Background

2020–2024
Bachelor of Computer Engineering
Manisa Celal Bayar University
Graduated as Honor Student. GPA: 3.12
2022–2024
Human Resources Management
Anadolu University
2018–2020
Bachelor of Materials Science and Engineering
İzmir Institute of Technology

Credentials

CCNA
Cisco Certified Network Associate
Cisco
2023
KCNA
Kuberneted and Cloud Native Associate
Linux Foundation
2025
SC-900
Microsoft Certified: Security, Compliance, and Identity Fundamentals
Microsoft
2025

Giving Back

Project Representative
IEEE Türkiye Twin Student Branches Project 2019 — 2021
Served as Student Liaison of IEEE Turkey's largest networking project, leading a 12-person team to build, monitor, and grow inter-university partnerships — including international outreach to expand the project globally.
Member
Artificial Intelligence Security and Defence Lab (AISECLAB) 2023 — 2024
Participating in an organization at the intersection of AI and Cybersecurity, where I attend training sessions on cybersecurity, artificial intelligence, and cloud computing while volunteering on ongoing project development.
Volunteer
IEEE 2018 — 2024
Five years of IEEE leadership across two student branches and the national Twin Student Branches Project, leading inter-branch collaboration and blog content.