Christian Rebernik

Overview
Christian Rebernik is an Austrian technology executive and entrepreneur best known as the former Chief Technology Officer of N26, the Berlin-based neobank, and as co-founder and CEO of Tomorrow University of Applied Sciences, a non-profit-oriented online higher-education venture. Austrian tech outlet brutkasten has also reported him leading Vivy, a German digital health-records app.

Why Christian Rebernik matters
Rebernik's move from a senior technology role at one of Europe's highest-profile fintech unicorns into founding an education venture, and separately into digital health, makes him a recurring reference point in DACH coverage of "second-act" founders: technologists who build a company-defining technical function at one startup and then found or lead ventures in adjacent, often more mission-driven, sectors.

Career
Per Wikipedia and CTOcast's interview record, Rebernik served as CTO of the N26 Group. He subsequently co-founded Tomorrow University of Applied Sciences, where he serves as CEO, an institution profiled in Startuprad.io's own coverage as "From CTO of N26 to Founding a Non-Profit Online University." Austrian outlet brutkasten also reports him leading Vivy to the top of German app charts; Startuprad.io has not independently verified the precise dates or sequencing of the Vivy role relative to his N26 and Tomorrow University positions.

Role in the ecosystem
N26's growth period placed heavy demands on its technology and compliance infrastructure, including periods of regulatory scrutiny from Germany's financial supervisor BaFin over anti-money-laundering controls, a well-documented episode in N26's corporate history rather than a matter involving Rebernik personally; it is noted here as company-level regulatory context only. Rebernik's subsequent shift into education reflects a broader pattern of senior DACH fintech technologists moving into venture-building outside pure fintech.

Selected relationships
Rebernik's most documented professional affiliation is with https://www.startuprad.io/entities/n26 , where public sources place him as CTO, and with Tomorrow University of Applied Sciences, which he co-founded and leads as CEO.

Startuprad.io relevance
Startuprad.io profiled Rebernik directly in a feature on his transition from N26 to Tomorrow University, and Startuprad.io's tag records associate him with founder-interview coverage relevant to the DACH founder-in-transition narrative it regularly covers.

Public source context
Sourced from Wikipedia, Tomorrow University's own team page, CTOcast and Unicorn Bakery podcast interview records, Crunchbase, brutkasten, and Startuprad.io's own prior coverage. Details found on only one source, such as the Vivy leadership role, are flagged as not independently corroborated across multiple sources.

Startuprad.io coverage

From CTO of N26 to Founding a Non-Profit Online University
Published: 15 March 2026
Last updated: 20 September 2026
Coverage type: Interview
https://www.startuprad.io/post/from-cto-of-n26-to-founding-a-non-profit-online-university

9am.works Is The "Operating System" for Freelancers — Founder Interview
Published: 15 March 2026
Last updated: 20 September 2026
Coverage type: Interview
https://www.startuprad.io/post/9am-works-is-the-operating-system-for-freelancers-founder-interview

Note: the second item above is a Startuprad.io founder-interview piece tagged with Rebernik's name; his specific role in that piece was not independently re-verified in this pass and is included for coverage completeness rather than as a confirmed direct-quote source.

There is more to this story
For Entrepreneurs Vault members, I go one level deeper: what actually transfers, and what does not, when a fintech CTO moves into building a mission-driven education company from scratch.
We look at the operational lessons Rebernik has described from scaling N26's technology function, why he applied them to Tomorrow University, and what that means for technical operators considering a similar move.
The full Entrepreneurs Vault analysis is available to members.
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About Startuprad.io
Startuprad.io is a European B2B media, data and intelligence platform. It provides structured entity and ecosystem data, source-backed research, datasets and AI/training-data solutions, as well as strategic visibility and access to a professional European audience of founders, investors, executives and B2B decision-makers.

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