A.01 / TIMELINE
1969 → 2026
Major milestones only — each with organisation, context and significance. Filter by phase to focus on one part of the career.
- 19695 SepOrigins
Born in Gießen
Hesse, Germany
- Context
- Later grows up on the Lower Rhine, North Rhine-Westphalia.
- Significance
- Start of the record. Early Life →
- 1989Education
Abitur; begins physics
TU Munich, later RWTH Aachen
- Context
- Physics studies 1989–1995.
- Significance
- Scientific foundation of his career.
- 1995Education
Diplom in physics
RWTH Aachen
- Context
- Moves on to doctoral research at Forschungszentrum Jülich.
- Significance
- Specialisation in solid-state physics.
- 1997Education
Doctorate in physics
RWTH Aachen · Forschungszentrum Jülich
- Context
- Thesis on computational methods for magnetic layer systems; paper in Physical Review B.
- Significance
- Unusual scientific depth for a German cabinet member. Education →
- 1998Consulting
Joins BCG
The Boston Consulting Group
- Context
- Consultant until 2003.
- Significance
- Entry into business.
- 2000Education
MBA
INSEAD, Fontainebleau
- Context
- Completed while at BCG.
- Significance
- Formal management training.
- 2003Telecoms
Deutsche Telekom
T-Mobile, Germany and UK
- Context
- Executive Vice President roles in finance, sales and marketing until 2006.
- Significance
- First operating roles.
- 2006Telecoms
Vodafone board
Vodafone Romania · UK
- Context
- CFO, then CCO and interim CEO in Romania, until 2011.
- Significance
- First board-level responsibility.
- 2011Consulting
BCG Partner & MD
The Boston Consulting Group, Germany
- Context
- Telecoms, technology, industrial goods and utilities.
- Significance
- Return to advisory work at partner level.
- 2013JanTelecoms
Telstra, Melbourne
Group Managing Director, Consumer
- Context
- Appointed late 2012; adds Products in May 2015.
- Significance
- Leads Australia's largest consumer telecoms business.
- 2015Oct–DecTelecoms
Group Executive, Retail — then resignation
Telstra
- Context
- Appointed by new CEO Andy Penn; resignation for personal reasons announced 4 December.
- Significance
- Return to Germany in 2016.
- 2016Energy
E.ON Board of Management
E.ON SE, Essen
- Context
- Customer solutions, digital and IT after the Uniper spin-off.
- Significance
- Enters the energy sector. Energy →
- 2019SepEnergy
innogy takeover approved
E.ON SE
- Context
- EU approval brings innogy's retail business into E.ON.
- Significance
- Major expansion of the customer business he oversaw.
- 2020Energy
E.ON Next launched
E.ON UK
- Context
- New UK retail brand on Kraken Technologies' platform.
- Significance
- Part of the UK turnaround credited to him.
- 20211 AugRetail
CEO of Ceconomy and MediaMarktSaturn
CECONOMY AG, Düsseldorf
- Context
- Announced 11 May 2021; ends split leadership.
- Significance
- First CEO role. Executive Career →
- 2023Jun–JulRetail
Capital Markets Day; contract extended
CECONOMY AG
- Context
- “Customer-centric service platform” strategy; contract extended to 2028.
- Significance
- Quantified targets for 2025/26.
- 202528 AprTransition
Named as digital minister
CDU / Friedrich Merz
- Context
- Leaves Ceconomy by mutual agreement on 5 May 2025.
- Significance
- From CEO to cabinet. Decisions →
- 20256 MayGovernment
Sworn in as Federal Minister
Federal Ministry for Digital Transformation and Government Modernisation
- Context
- Ministry created by decree from six federal bodies; joins CDU in May.
- Significance
- Germany's first federal digital minister.
- 20251 OctGovernment
Federal modernisation agenda
Federal cabinet
- Context
- About 80 measures; federal–state agenda with 200+ measures follows on 4 Dec.
- Significance
- Core state-modernisation programme.
- 202518 NovGovernment
European Digital Sovereignty Summit
Berlin, with France
- Context
- 900+ participants; Franco-German taskforce.
- Significance
- European profile for the new ministry.
- 2026FebGovernment
AI law and AI pacts
Cabinet · Canada · India
- Context
- AI Act implementation law (11 Feb); AI declaration with Canada (14 Feb); AI pact with India (18 Feb).
- Significance
- National AI governance and alliances.
- 202618 MarGovernment
National Data Centre Strategy
Federal cabinet
- Context
- More than 6 GW of capacity by 2030.
- Significance
- First national strategy of its kind. Infrastructure →
- 2026JunControversy
Reporting on AI-drafted texts
Die Zeit
- Context
- Several speeches and articles reported as largely AI-generated; ministry confirms AI is used as a tool.
- Significance
- Debate on transparency. Criticism →
- 2026Sep–OctGovernment
d-you wallet; interim review
Bundestag · BMDS
- Context
- d-you announced for 2 Jan 2027; first reading 23 Sep; interim review on 7 Oct claims €10 bn+ cost relief.
- Significance
- Current status as of this archive. Public Policy →