On Focus
A privacy-first AI chat app
Felini
Building a privacy-first, non-profit AI chat app powered by 100% renewable energy.
Hi there!
My name is Daniel
My name is Daniel
I shape products through collaboration and clarity.
I work at the intersection of product, design, and engineering, helping teams turn complex problems into clear direction — so the final product works for the people using it.
At a glance
- Berlin-based
- EN / DE / ES
- Product & design
- Human-centered, AI-supported
Featured Portfolio
A selection of product work where I helped teams shape direction in complex contexts — from AI-native products to domain-specific platforms.
Felini
Privacy-first AI chat app
Client: German tech NGO
Felini is an AI product developed from the very beginning, shaped around well-established chat interaction patterns. The challenge was to respect familiar mental models while creating a clean, minimal interface with its own character.
View case study
Kanzlei21
Tax automation platform for accountants
Client: ETL Group
Kanzlei21 is a product for accounting firms, built for a highly specific professional audience. With no predefined interaction models to rely on, the focus was on understanding real workflows and translating them into a system that feels clear, intuitive, and trustworthy.
View case studyWho I am
What I do now
At RubidiumData, I work at the intersection of product, design, and data, shaping products in complex, real-world contexts.
I help clarify problems, surface trade-offs, and shape direction as ideas take form — translating ambiguity into shared understanding that teams can actually build against.
Our team uses AI to automate research and development tasks where understanding, synthesis, and judgment matter — which means working with real constraints, evolving requirements, and close collaboration across disciplines.
I work closely across engineering, product, and stakeholders to keep decisions grounded and aligned. Beyond typical design–development collaboration, I also step directly into frontend code to propose design adjustments, test ideas in implementation, and help ensure the final product works well for users.
How I work
I explore, reason, and align through agile use of design — creating shared reference points that support better decisions across teams.
With implementation in mind, I collaborate across disciplines and work in the codebase to test ideas and keep design intent aligned.
I work with loosely defined situations by organizing information, mapping relationships, and making complex systems easier to reason about.
I use AI deliberately in practical contexts — to explore options, reason through complexity, and reduce friction across teams.
Snapshot
Based in Berlin, working with teams across Europe and beyond
Focused on product & design — with data-based decision making and background in architecture
Outside of work, enjoys family time, bouldering, jogging and long walks with the dogs.
Now / Focus
Currently focused on building AI-powered tools that help teams work more effectively with complex information. Exploring how design can make AI systems more transparent, trustworthy, and useful in real-world contexts.
Domains
Product & Design
Designing interfaces and flows that help teams align on what they're building and why.
Data & AI
Using data and AI to help answer real questions and support informed decisions.
Architecture & Space
Creating and adapting systems rooted in how people move, live, and use space.
