About
Software Engineer | InfoSec researcher | Linux user | Developer
Software Engineer
I am a computer engineer and a security-focused software developer. My primary interests include secure protocols, cryptography, multimedia encryption, end-to-end encryption, privacy, and anonymity. I develop web and desktop applications with an emphasis on security, and I actively follow emerging software technologies and innovations.
- Website: www.kriptogram.net
- Phone: +90 541 616 2961
- City: Ankara, Türkiye
- Degree: Master of Science
- Email: cihatkeles@hotmail.com
Skills
I have experience with various programming languages, frameworks, and tools, and I focus on building secure and efficient software while continuously improving my skills.
What I'm Doing
Desktop Apps
Web Apps
Mobile Apps
Cryptographic Apps
Cloud & DevOps
Observability & Tracing
My Skills
Resume
I have over 15 years of experience in software development and IT infrastructure, with experience in secure communication, microservices, and system administration.
Download CV (PDF)Professional Experience
Software Engineer
2023 - Present
Agrio Finans
- Developed secure payment integrations and backend payment modules.
- Implemented and maintained microservice architectures to enhance system scalability and reliability.
Technical Manager & Software Architecture
2018 - 2023
PTT (Turkish Post) - R&D Department
- Researched several end-to-end encryption protocols (Signal, TreeKem, Art) for secure communication.
- Conducted research on biometric authentication in online banking applications.
Senior IT Administrator
2015 - 2018
PTT (Turkish Post) - IT Department
- Part of the team that designed a secure IT infrastructure for PTT REM (Registered Electronic Mail) in line with ISO 27001 standards
- Managed VMware vSphere administration (Infrastructure Installation & management).
- Provided Linux System Administration, Vulnerability and Patch Management.
- Handled middleware management including Nginx and IIS.
Software Engineer
2011 - 2015
PTT (Turkish Post) - PTTBank Department
- Developed software components for HGS (High-Speed Toll System) including vehicle detection and RFID tag reading.
- Improved performance of real-time HGS monitoring reports, reducing response times.
- Developed RESTful services for HGS Transition Violation and Balance Inquiry.
Freelancer
2008 - 2011
Self-Employed
- Developed several web applications with C# and ASP.NET.
Education
Master of Science - Computer Engineering
2009 - 2012
Karadeniz Technical University, Trabzon, Türkiye
Bachelor of Science - Computer Engineering
2003 - 2008
Ahmet Yesevi University, Türkiye
Contact
Location:
Ankara, Türkiye
Website:
kriptogram.net
Email:
cihatkeles@hotmail.com
Call:
+90 541 616 2961