Context stays close
The business objective, users and operational constraints remain part of product and technical decisions throughout the work.
The studio
A founder-led software and AI studio based in Cyprus.
Rosenston is a Cyprus-based product engineering studio for B2B teams that want senior involvement, disciplined execution and fewer layers between the problem and the people building the solution.
- Founded
- 2026 · Cyprus
- Structure
- Private company limited by shares
- Company number
- HE 496160
WHY ROSENSTON EXISTS
Digital products fail in the gaps between business, design and engineering.
A workflow can be technically automated and still be difficult to operate. An interface can look complete and still hide the decisions users need to make. A product can launch and leave no sensible path for the next change.
Rosenston closes those gaps by treating the operating model, product experience and technical system as one connected piece of work.
THE DIRECT STUDIO MODEL
Less distance between question and decision.
Progress stays reviewable
Working increments and explicit decision points make it easier to evaluate direction before complexity compounds.
Responsibility stays visible
You know who is shaping the product, what has changed and which decisions still need attention.
COMPANY & LEADERSHIP
Know who is responsible for the work.
Rosenston is intentionally transparent about its current company structure. Client delivery is led directly by the founder.
Founder / Director
Dan Karlstetter
Leads product definition, software architecture, interface direction and technical delivery from first conversation through release.
Company Secretary
Juline Seifert
Supports the formal company structure and corporate administration of ROSENSTON LTD.
WAYS TO ENGAGE
Match the engagement to the uncertainty.
Some work needs definition before implementation. Some needs a complete product build. Some needs an experienced pair of hands on an existing system.
01
Direction
Product definition
Clarify an operational problem or product opportunity, map the critical workflow and define a credible first release.
Typical outputScope, product flows, prototype and technical direction
02
Delivery
Product build
Design and engineer custom software, an AI-enabled workflow or a B2B web platform through production.
Typical outputWorking product, integrations, QA and launch support
03
Evolution
Continuous improvement
Maintain and improve an existing system around operating evidence, user feedback and changing priorities.
Typical outputPrioritised changes, releases and technical stewardship
CYPRUS BASE · INTERNATIONAL OUTLOOK
Structured for collaboration across borders.
Written context, focused working sessions and visible decisions keep remote delivery effective. The company base is Cyprus; the working model is built for international B2B teams.
A direct place to begin
Bring the problem, not a polished brief.
Share what is difficult today, who is affected and what a useful change would make possible. We will turn that context into the clearest next step.