Web Application Development
Custom applications shaped around your workflows, with room to evolve as your business changes.
Software Engineering & AI Integration Studio
Experienced engineering.Practical AIintegration.
Thoughtfully built.
Made to last.
We build web applications, SaaS products and backend systems, modernize existing platforms, and integrate AI where it serves a clear purpose.
You work directly with our founder, Kerem Yılmaz Güney, from architecture and implementation through the agreed production delivery.
Digital craft.Engineering that holds up.
↓From idea to working software
What We Build
Different challenges.
The same care in the details.
SaaS Development
From the first product release to subscriptions, account management, and a maintainable platform.
AI Integration & Automation
Assistants, document processing, knowledge search, and bounded workflow automation integrated into your existing software.
API & Backend Development
The services behind your product: data models, business logic, APIs, and reliable integrations.
WordPress Development
Purpose-built themes and websites with performance, accessibility, and content editing considered together.
WordPress Plugin Development
Custom plugins and Gutenberg blocks, with clear architecture, licensing integrations, and ongoing maintenance.
E-commerce Development
Online stores built around your catalogue, checkout, payment integrations, and day-to-day operations.
How we work
Understand first.
Build with purpose.
Good software starts with a clear understanding of the problem. The framework comes later, once the requirements and constraints make sense.
Understand the Problem
We clarify product goals, existing systems, business needs and technical constraints before shaping the architecture around what the software needs to do.
Build with Purpose
We choose technology that fits the project, with clear boundaries and maintainable code that make implementation practical and future decisions easier.
Think Beyond Launch
We consider how the product will evolve, connect to other systems and be maintained, keeping reliability and future changes in view from the start.
AI-assisted development. Engineer-led decisions.
AI supports implementation, testing and technical exploration; we review its output against project requirements, with architecture, security, quality and delivery decisions remaining our founder’s engineering responsibility within the agreed scope.
The person behind the studio
Engineering experience.
Personally involved.
RKX Design is a founder-led software engineering studio established in October 2015. Our founder brings 18+ years of professional software engineering experience to the work we do.
We build modern frontend applications, backend systems and APIs, SaaS platforms and WordPress solutions. Practical AI integration and considered technical decisions guide how we develop and improve software.
Kerem Yılmaz Güney
Founder & Software Engineer
Selected Work
The engineering, in context.
TrendScore
Independently developed SaaS product.
A cryptocurrency market analysis platform combining algorithmic scanning, directional scoring and virtual position tracking to help users examine market movements.
- Next.js
- PostgreSQL
- Redis
- WebSockets
WPBits Block Studio
Collaborative WordPress plugin project, published under the WPBits brand.
A WordPress plugin for building custom Gutenberg blocks with configurable attributes and dynamic rendering, collaboratively developed under the WPBits brand.
- WordPress
- Gutenberg
- Freemius
Panteleimon Podvorie
Website & Content Platform
A website and content platform bringing together worship schedules, religious calendars, news and multimedia for Panteleimon Podvorie through structured updates.
- Next.js
- Strapi
- PostgreSQL
Office of Diversion and Reentry
Professional collaboration outside RKX Design
Maintenance and feature development within an existing PHP and React platform. Work within the established application and coordination of contributing developers.
- PHP
- React
Start a conversation
Let’s build something
that lasts.
Have a product idea, a system that needs attention, or a technical challenge worth discussing? Tell us what you’re working on.