Custom web & app development
When an off-the-shelf solution is not enough, we build the system around your process – and keep it running for years.
What we deliver
- Information architecture
- Analysis, specification and a clear plan before we write code
- Web applications
- Publishing systems, member areas, internal tools and multi-site systems
- Backends & APIs
- GraphQL APIs for websites, mobile apps and integrations, including MCP servers that let AI assistants work with your content
- Integrations
- Payment gateways, Salesforce, invoicing and accounting systems, SMS gateways
- Admin interfaces
- Clear administration for your team, with user rights and workflows
- Frontend
- Your design implemented – or close work with your designer and frontend developer
Who it is for
For organisations whose work does not fit a template – publishers, associations, logistics companies and brands that need a system built around their process.
What we have built
- for Works That Work, a publishing system with ePub generation and export to InDesign
- for SAVLMZ, a system for creating and managing independent websites for the association's events and sections
- for Červený nos Clowndoctors, a web application for face-to-face fundraising connected to Salesforce
- for RHpositive, logistics systems used at sites in eight countries
How we work
- We analyse your needs, priorities and goals.
- We prepare a content and functional specification.
- We design and develop in stages you can follow.
- We test functionality and usability and process the feedback.
- We launch, host and look after the system.
Questions
Can you work with our designer?
Yes. We often implement designs by other studios – for example by Ondrej Jób for Typotheque and Peter Biľak.
Who runs the system after launch?
We do. Hosting, maintenance and support are part of every project we build, so one partner is responsible for both the code and the servers.
Have an idea? Write to us at info@slonline.sk.
Technologies
Silverstripe 6PHPGraphQLNext.jsReact
