Keystone Systems

I run Keystone Systems, a software studio based in the Netherlands. I take your project from the first requirements through design, development, testing and launch, with continued support agreed around your needs.

You can bring me a new idea, an existing product or a business process you want to improve. I lead the work and remain your main contact, bringing in specialists where the project needs them.

I build websites, online stores, web applications, iOS and Android apps, internal tools and integrations. You can commission a complete project, a defined improvement, a review or continued development.

Before development starts, we agree the deliverables, price, review points and responsibilities. Your project can include the relevant accessibility, privacy, testing and documentation work. Website work can also include technical SEO. The proposal identifies the work and checks included.

You receive the agreed source, assets, account access and operating instructions. We define defect correction, maintenance and further development before handover.

Tell me what you need, what already exists and any timing or budget constraints.