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Open nowPosted 9 hours ago

CTO Cofounder - PreSeed PropTech Berlin

Founders Factory15 open roles

Where
Berlin
Work mode
Hybrid
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Your applicationOpen nowCTO Cofounder - PreSeed PropTech BerlinFounders Factory · Berlin

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The clock on this job

Early applications get read.

15.1% of postings close within 7 days. Measured by our own scanner across the market. Founders Factory postings stay open a median of 11 days.

Share of postings closed within
  1. 2.4%1 day
  2. 6.5%3 days
  3. 15.1%7 days
This job: posted 9 hours ago

Founders Factory median: 11 days open

The posting

FOUNDERS FACTORY × NUA MATERIALS

Co-Founder & CTO

Founders Factory baut und finanziert gemeinsam mit außergewöhnlichen Gründer:innen und führenden Unternehmen neue Start-ups; unser Gründerteam verfügt über eigene Exit-/IPO-Erfahrung, und unsere mehr als 300 Portfoliounternehmen haben seit 2015 über 900 Mio. USD an Anschlussfinanzierung eingeworben.

Für Nua Materials suchen wir eine:n technische:n Co-Founder & CTO, der oder die gemeinsam mit dem bestehenden Gründer aus einem validierten Konzept ein skalierbares Produkt und Unternehmen aufbaut.

DIE CHANCE

Neuartige und nachhaltige Baustoffe gibt es längst, doch viele schaffen den Weg in reale Bauprojekte nur langsam. Für Bauunternehmen, Wohnungsunternehmen und Projektentwickler sind Informationen und Nachweise fragmentiert, Produkte schwer vergleichbar und neue Materialien mit zusätzlichen technischen, wirtschaftlichen und organisatorischen Risiken verbunden. Gleichzeitig steigt der regulatorische Druck: Wesentliche Teile der neuen EU-Bauprodukteverordnung gelten seit 2026, der Digitale Produktpass für Bauprodukte kommt.

Viele bestehende Lösungen setzen bei Dokumentation, Nachweisen und Zertifizierung an – nicht bei der eigentlichen Auswahl- und Kaufentscheidung. Genau dort setzt Nua Materials an. Ein zentraler Baustein ist der Nua Score, der bereits in einer ersten Version vorliegt. Bisherige Gespräche mit Herstellern, Bauunternehmen, Projektentwicklern und Gebäudeeigentümern bestätigen den Bedarf und zeigen Interesse an Pilotprojekten.

WAS DU AUFBAUEN WIRST

Als Co-Founder & CTO verantwortest du in der frühen Phase Produkt und Technologie.

- Du definierst mit Nutzer:innen die entscheidenden Abläufe und baust den ersten nutzbaren Prototypen.

- Du entwickelst den Nua Score weiter und baust eine robuste Daten- und Systemarchitektur für unterschiedliche externe Datenquellen.

- Du entscheidest, was jetzt gebaut, später ergänzt oder automatisiert werden sollte – und was bewusst nicht ins Produkt gehört.

- Du arbeitest direkt mit ersten Kund:innen und Partnern und baust später ein kleines Produkt- und Entwicklungsteam auf.

Die ersten Monate sind sehr operativ: Wir suchen eine:n technische:n Gründer:in, der oder die selbst baut und Produktentscheidungen mitträgt.

WEN WIR SUCHEN

- Produktentwicklung: Du kannst aus einem noch unscharfen Kundenproblem einen klaren, testbaren Produktansatz entwickeln und technisch umsetzen.

- Datenbasierte Produkte: Du hast Erfahrung mit datengetriebenen Plattformen, Bewertungs- oder Vergleichssystemen und kannst konkrete Fehlerquellen, Datenqualitätsprobleme und Validierungsentscheidungen beschreiben.

- Technische Breite: Du bist stark in Backend und Datenarchitektur und kommst im Frontend weit genug, um frühe Produktversionen selbst auszuliefern.

- Vertrauen im B2B: Du baust nachvollziehbare Systeme, die bei risikoaversen Unternehmenskunden, langen Entscheidungswegen und hohen Nachweisanforderungen bestehen.

- Gründermentalität und Marktverständnis: Du hast gegründet, warst eine:r der ersten technischen Mitarbeiter:innen eines Start-ups oder hast vergleichbare Verantwortung übernommen. Verhandlungssicheres Deutsch, professionelles Englisch und Erfahrung im DACH-Markt sind wichtig.

BESONDERS INTERESSANT, ABER KEIN MUSS

- Erfahrung in Construction Tech oder PropTech

- Hintergrund in Bauingenieurwesen oder Materialwissenschaften, idealerweise mit LCA-/EPD-Erfahrung

- Erfahrung mit Vergleichsplattformen oder Marktplätzen

WAS WIR BIETEN

- Kapital und Gründerfinanzierung für die Aufbauphase

- Enge Unterstützung durch Founders Factory in Produkt, Daten, Wachstum, Finanzierung, Recht und Personal – auf Basis bestehender Markt-, Kunden- und Produktarbeit

- Zugang zu ersten potenziellen Kund:innen und Partnern in Bau- und Wohnungswirtschaft sowie zu unserem internationalen Netzwerk

------------------- In English:

FOUNDERS FACTORY × NUA MATERIALS

Co-Founder & CTO

Founders Factory builds and funds new startups together with exceptional founders and leading companies. Our founding team brings its own exit and IPO experience, and since 2015 our 300+ portfolio companies have raised more than USD 900m in follow-on funding.

For Nua Materials, we are looking for a technical Co-Founder & CTO to build a scalable product and company alongside the existing founder, starting from a validated concept.

THE OPPORTUNITY

New and more sustainable building materials already exist, yet many struggle to make the leap into real construction projects. For construction companies, housing providers and developers, information and evidence are fragmented, products are difficult to compare, and adopting unfamiliar materials creates additional technical, commercial and organisational risk. At the same time, regulatory pressure is increasing: key provisions of the revised EU Construction Products Regulation have applied since 2026, and Digital Product Passports for construction products are on the way.

Many existing solutions focus on documentation, evidence and certification — not on the actual selection and purchasing decision. This is where Nua Materials comes in. A core component is the Nua Score, which already exists in an initial version. Conversations with manufacturers, construction companies, developers and asset owners have confirmed the need and shown interest in pilots.

WHAT YOU WILL BUILD

As Co-Founder & CTO, you will own product and technology in the early stage.

- Define the critical workflows with users and build the first usable product.

- Develop the Nua Score and build a robust data and system architecture across multiple external data sources.

- Decide what to build now, what to add later, what to automate — and what deliberately should not become part of the product.

- Work directly with early customers and partners, then build a small product and engineering team over time.

The first months will be highly hands-on: we are looking for a technical founder who builds personally and helps shape the product, not a CTO who starts by delegating.

WHO WE ARE LOOKING FOR

- Product development: You can turn an ambiguous customer problem into a clear, testable product approach and build it.

- Data-driven products: You have experience with data-heavy platforms, scoring or comparison systems and can talk concretely about failure modes, data-quality issues and validation decisions you have encountered.

- Technical range: You are strong in backend and data architecture and capable enough on the frontend to ship early product versions yourself.

- Trust in B2B: You build transparent, credible systems that can stand up to risk-sensitive enterprise customers, long decision cycles and demanding evidence requirements.

- Founder mindset and market understanding: You have founded before, were one of the first technical hires at a startup, or have taken on comparable ownership. Business-fluent German, professional English and experience in the DACH market are important.

ESPECIALLY RELEVANT, BUT NOT REQUIRED

- Experience in ConTech or PropTech

- Background in civil engineering or materials science, ideally with LCA/EPD experience

- Experience with comparison platforms or marketplaces

WHAT WE OFFER

- Capital and founder funding for the build phase

- Hands-on support from Founders Factory across product, data, growth, fundraising, legal, finance and talent — building on existing market, customer and product work

- Access to early prospective customers and partners across construction and housing, as well as our international network

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