About RKX Design
Software engineering.Clear responsibility.
Established October 2015
Istanbul, Türkiye · Working internationally
RKX Design is an independent software engineering company. We build web applications and SaaS products, modernize existing platforms, and integrate AI where it serves a clear purpose.
01 / The studio
From application to working system.
A web application depends on more than its interface. We connect the product’s requirements with backend systems, APIs and the way it will operate. Our WordPress engineering follows the same approach: understand how content, custom functionality and integrations fit together.
We choose an architecture that fits the project and can evolve with it. AI integration is part of that work when there is a useful task to support. Technical choices are considered alongside implementation, testing and the agreed delivery scope.
Registered company nameRKX Dizayn Bilişim ve Teknoloji Hizmetleri Ltd. Şti.
02 / The founder
The person behind RKX Design.
Kerem Yılmaz Güney
Founder & Software Engineer
Our founder, Kerem Yılmaz Güney, brings more than 18 years of professional software engineering experience. He is directly involved in the technical work, from requirements and architecture through implementation and agreed production delivery.
His background includes Senior Software Engineer, Technical Lead, Director of Engineering and Full-Stack Engineering Consultant roles held as an employee and consultant outside RKX Design. That experience informs how we approach both hands-on development and technical delivery responsibility.
03 / How we work
Understand the problem. Build with purpose.
Understand the problem
We clarify what the software needs to do, who will use it and which existing systems it depends on before choosing a framework or architecture.
Make practical decisions
We weigh technical options against your priorities, constraints and operating environment, and explain the trade-offs behind our recommendations.
Build for maintainability
We keep code understandable and system boundaries clear, so future changes can be made with performance and reliability in mind.
Communicate directly
You speak with the engineer responsible for delivery. We discuss progress, explain decisions and raise questions when requirements need clarification.
AI-assisted development. Engineer-led decisions.
AI tools support development, testing and documentation; we review their output. Our founder retains engineering responsibility for architecture, security, quality assurance and production decisions within the agreed scope.
04 / Experience & expertise
Engineering across the application.
Our technical work spans interfaces, business logic, content and infrastructure, for new applications and systems already in use.
Explore the servicesApplications & interfaces
Web and SaaS applications, with frontend work in JavaScript, TypeScript, React, Next.js, and Astro.
Backend & integrations
Server-side systems in Node.js and PHP, APIs, and third-party integrations, including GraphQL where it fits the requirements.
Content & commerce
WordPress, custom plugins, headless CMS architectures, and e-commerce development.
Infrastructure & ongoing care
Cloud infrastructure, deployment workflows, performance, and the maintenance of existing systems.
Our portfolio distinguishes company work, our founder’s professional contributions, independent products and collaborative projects.
See the engineering in context05 / Working together
A clear scope. A shared working rhythm.
Based in Istanbul, Türkiye, we work remotely with clients internationally. We agree on scope, priorities and a communication rhythm that fits the project.
Whether the work is a focused improvement or ongoing product development, we discuss dependencies and open questions so technical decisions stay connected to your priorities.
06 / Let’s talk
Have something you’re working on?
If you’re planning a new application, improving an existing product, or need help with a technical problem, we’d be glad to hear about it.
Discuss Your Project