Product ownership with a technical foundation.

IT Consultant + Business Analyst

• Product direction

  Developed the product vision for an editor tool at BWI, built for the German Ministry of Defence.

  Product vision
• Build-ready requirements

  Wrote the epics, user stories and acceptance criteria myself for a variety of products (1&1 Deposit Shop, E.ON E-Commerce, GMX/web.de, Mein02, AlidTalk etc.).

  Epics

  User Stories

  Acceptance criteria
• Security by design

  Captured security requirements for hosting on user devices and protecting backend systems in a government context.

  Security Requirements
• Requirements archaeology

  Reconstructed five-year-old, undocumented requirements for 1&1’s deposit shop from stakeholder interviews, production code and legacy records.

  Requirements archaeology

  Requirements engineering

Project Manager

• Migration delivery

  Led the microfrontend migration of 1&1’s deposit shop, reconstructing five-year-old requirements from interviews and legacy code.

  Microfrontend
• Cross-functional coordination

  Coordinated web, iOS, Android, QA, Legal, Security, Marketing and Design teams through that migration.

  Delivery Leadership
• Release ownership

  Owned releases for the 1&1 Deposit shop, E.ON wallbox shop, GMX/web.de as well as MeinO2 plus Partner Applications apps.

  Release Management
• System integration

  Connected the Mein O2 app with the Box 7 backend and Telefónica’s MCE API gateway..

  REST

  JSON
• Explicit trade-off

  Chose to build E.ON’s e-mobility shop on the existing legacy system rather than a clean rebuild — trading a faster launch for added technical debt.

  Time to market

  Technical debt

Product Owner + Portfolio Manager

• Roadmap ownership

  Owned roadmaps across O2 (including ALDI TALK), GMX/web.de, BWI, the E.ON wallbox shop and 1&1’s microfrontend platform.

  Roadmaps

  Product Ownership
• Architecture context

  Worked with microfrontend and service-based architecture during the 1&1 deposit-shop migration.

  Architecture
• Value-based prioritization

  Prioritised backlogs using MoSCoW, strictly ranked by business value.

  Time to market

  Release Strategy
• Portfolio clarity

  Reduced an unstructured 25-ticket IT portfolio to 14 scoped initiatives with budget and timeline.

  Portfolio Management
• Stakeholder and AI initiatives

  Aligned C-level stakeholders for the Digital Help Center; initiated an AI chatbot PoC for 1&1 and built VoCaBi, an LLM-powered translation app.

  Generative AI

  AI product discovery