Onur Yerlikaya Group CTO & Technology Leader
About Me
I'm Onur Yerlikaya, a seasoned technology leader with over 20 years of experience in the software industry. As the Group CTO at Testinium, I lead technology strategy and innovation across multiple business units, focusing on scalable architecture, cloud solutions, and digital transformation.
My career has been defined by a passion for solving complex technical challenges while maintaining a strong focus on business objectives. I've successfully led teams through major technological transitions, from monolithic systems to microservices architectures, and from on-premise infrastructure to cloud-native solutions.
I believe in technology as an enabler of business growth and innovation. My approach combines technical excellence with strategic thinking, ensuring that technology investments deliver measurable business value. I'm particularly interested in high-performance systems, scalable architectures, and the organizational aspects of technology leadership.
Professional Summary
- 20+ years in software development & architecture
- Expertise in cloud architecture & scalable systems
- Strong background in technology leadership
Education
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Business Administration and Management Anadolu University
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Computer Programming Sakarya University
Professional Experience
Group CTO
Testinium
October 2024 - Present
- Leading technology strategy and innovation across the group
- Overseeing architecture and technical direction
- Driving digital transformation initiatives
Chief Technology Officer
Loadium
August 2023 - October 2024
- Led technical strategy and product development
- Managed cloud infrastructure and scalability
- Implemented DevOps practices and CI/CD pipelines
VP of Software Engineering
Demirören Teknoloji
January 2022 - July 2023
- Implemented effective strategies to optimize software development processes
- Led development team members and orchestrated successful projects
- Leveraged technological advancements to drive digital transformation
Skills & Expertise
With over 20 years of experience, I've developed expertise across a wide range of technologies and domains.
Architecture
- Enterprise Architecture
- Microservices
- Distributed Systems
- API Design
Development
- PHP
- Java
- Python
- Web Applications
Cloud & DevOps
- AWS
- Docker
- Kubernetes
- CI/CD
Databases
- SQL (MySQL, PostgreSQL)
- NoSQL (MongoDB)
- Redis
- Database Design
Leadership
- Leadership
- Strategic Planning
- Agile Methodologies
- Software Project Management
Security & Performance
- Application Security
- Performance Optimization
- Scalability
- Load Testing
LinkedIn Testimonials
What colleagues and partners have to say about working with me.
"I am always impressed by Onur's ability to complete the work assigned to him on time. Onur not only met deadlines but also explains what he does in a way that a ten-year-old can understand. This skill came in handy when communicating with people other departments who weren't particularly tech savvy. Onur takes his work very seriously and regularly and always stay abreast of the newest developments in programming."
Levent Kurt
Former Manager
"Onur sorumluluk sahibi, insiyatif kullanmaktan kaçınmayan, anlamaya ve anlatmaya odaklı, kendini ve mesleki yetkinliklerini sürekli güncelleyen ve geliştiren yapıya sahip yeni nesil bir yazılımcı. Kendisi ile proje yapmaktan son derece keyif aldımı söyleyebilirim. Umarım gelecek dönemde yeniden çalışma fırsatı bulurum."
Irfan Gurvardar
Chief Growth Officer
"Bilgi, beceri ve yeteneklerini kenara bırakırsak, takım arkadaşı olarak çalışılacak en keyifli insanlardan biridir."
Cafer Şimşek
Application Platforms Director
"Onur is a clutch player in the world of software. He's personable, effective, talented, and dedicated to reaching the desired project's goals. He does wonders with open source technologies. I would hire him to work on projects without hesitation, live...view...witness ;)"
Fikret Toydemir
CTO, Cloud | Big Data | ML & AI Consultant