Independent software studio · Aarhus
Software, websites and digital products built in Aarhus.
UnderStack designs and develops websites, SaaS products and custom software for companies in Denmark and across Europe.
If you would prefer to talk through more details, we can find a time that works.
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What we build
Websites, custom business software and AI-assisted workflows, built with React, TypeScript and modern web tooling. This site's own codebase is public on GitHub, so you can see the quality before you sign anything.
- Custom software
- Web development
- App development
- AI solutions
- Restaurant software
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Built in Aarhus. Small by design.
UnderStack is Diego Posleman — an independent software studio based in Aarhus. You work directly with the person designing and building your product: no account managers, unnecessary layers or long communication chains. See selected code on GitHub (github.com/UnderStack-Dk) or reach out directly to talk about a project.