(OTTO)
For one of Germany’s most popular shopping apps, I established a workstream that systematically transitioned the app experience from web paradigms to native interaction patterns. Micro-animations, transition patterns, mobile-optimized shopping journeys — all with the goal of making the app not only look good, but feel good.
(OTTO)
Since 2023, I have been responsible for the accessibility strategy within OTTO’s Search & Discovery domain according to WCAG 2.1 AA. This includes auditing existing components, defining standards, integrating them into the design process, and closely coordinating with engineering. No cosmetic checkbox UX, but structural quality assurance.
(PwC)
At PwC, I spent four years designing and supporting complex business applications involving AI and machine learning. The core question remained constant: How do you make an automated decision-making system understandable and trustworthy for the people using it? Transparency as a UX principle — long before it became a common buzzword.
(Thesis Project ecosign — 2017)
Tingel opposes the efficiency logic of digital map apps with a radically different idea: instead of a route, the app shows only a compass and a distance display. The destination remains unknown until arrival, selected based on personal interests. In this way, navigation becomes exploration once again—turning the shortest path into an experience. The case study combines the theoretical foundation from my thesis at ecosign with a later critical evolution of the concept: from questions of local identification and gamification principles to the structural limits of a session-based app.
(Personal Project — 2020)
Every form of communication carries an implicit theory about what interpersonal closeness even means—and most messaging apps haven’t questioned this theory in years. This personal concept study takes Signal as a starting point because it views security not as a feature, but as an attitude, asking from there: What changes when trust becomes a fundamental design condition rather than an afterthought? How much control does a person need over their own visibility to feel truly connected? And where does a conversation cease to be a mere exchange of messages and become something actually shared? The result is not client work, but a conceptual exercise—aiming to trace every design decision back to its core assumption.
(Personal Project)
According to a German study, almost 27% of surveyed men have experienced physical violence from a partner — and none of them called the police. The topic is taboo, infrastructure is lacking, and societal role expectations make it nearly impossible for victims to seek help. For this project, I conceptualized a campaign operating on two distinctly separate communication channels: a public awareness branch and a direct helpline branch for victims and loved ones. Deliberately created without photos — no victim roles, no dramatization. Instead: phrases from childhood upbringing, constrained within a narrow visual frame. The discomfort stems from composition, not content. The help page follows a completely different design language: open, clear, safe. From the initial impression to the "Emergency Exit" — a link to Wikipedia’s main daily page that disguises usage in case someone feels watched. Every decision has a psychological rationale. This is not a poster; it is communicative system design.