Hüseyin Gülşin
Application Security Engineer
İzmir, Türkiye Turkey
Summary
👤
Senior🎓
Top SchoolHüseyin Gülşin is an Application Security Engineer with nine years of hands-on experience in application, cloud and DevSecOps security, currently focusing on Large Language Model (LLM) security and offensive tooling for LLM red-teaming. He blends deep technical skills—SAST/SCA/DAST automation, threat modeling, Kubernetes hardening, and secure IaC—with practical cloud security implementations across AWS and Azure and Microsoft security stacks. Hüseyin has a track record of integrating security into CI/CD pipelines, building vulnerability management platforms like DefectDojo, and teaching developer-focused secure coding. Based in İzmir, he brings both offensive pentesting experience and compliance-driven engineering (ISO 27001/SOC 2) to pragmatic, production-ready security architectures. An interesting facet of his work is specializing in adversarial testing and jailbreak defenses for LLMs, bridging traditional appsec with emerging AI risks.
9 years of coding experience
1 year of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Dokuz Eylül Üniversitesi
İngilizce, Turkish, German
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (7)
turkish8
api7
telegram-bot6
rest-api5
owasp5
nodejs5
telegram4
Programming languages (3)
Github contributions (5)
huseyingulsin/Acik-Kaynak-Bilgisayar-Bilimleri
May 2022 - Jan 2023
Contributions:147 commits, 135 pushes, 1 branch in 8 months
huseyingulsin/movie-api
Sep 2022 - Sep 2022
Contributions:10 pushes, 12 branches in 1 day
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