Our Team

Think together, lead together.

At Oksygen, every decision is made with collective wisdom, experience, and a deep sense of responsibility for the future. On this page, you’ll meet our leadership team — not only decision-makers, but also listeners, problem-solvers, and action-takers. Each one brings inspiration, direction, and courage to Oksygen’s journey.

Ezgi Kozdere

Human Resources Specialist

Didem Yurttaş

Human Resources Manager

Mehmet Batuhan Ortakçı

Assistant Planning Specialist

Engin Özler

Accounting Specialist

Volkan Kahraman

Sales and Technical Support Manager

Koray Çelik

General Manager

Yusuf Emre Keleş

Planning Assistant Specialist

Kaan Kayalı

Fleet and Warehouse Logistics Supervisor

Yalçın HASTAN

Fumigation Officer

Bilge Kalefetoğlu

Senior Quality Assurance Specialist

Enes Işık

Pest Control Manager

Deniz Çakır

Quality Assurance Specialist

Hasan Korkmaz

Planning Support Staff

Ülfet Çiftçi

Quality Assurance Specialist

Selahattin Ünsal

Senior Planning Specialist

Hadi Armin Hazar

Pest Control Supervisor

Salih Yiğit BOSTANCI

Assistant Quality Assurance Specialist

Nafiye Babaarslan

Accounting Specialist

Turgay Sadıç

Admin & Finance Specialist

And Across Turkiye

Nearly 165 Team Members

Hakan Barbak

Sales and Quality Assurance Director

Merve Taşdemir Sertel

Assistant Sales Specialist

Nejdet Çelik

Fumigation Manager

Şükran Akgün

Senior Accounting Specialist