Founding Engineer for PropTech startup

Darum lohnt es sich

Strong focus on security, scalability, and maintainability • Develop production‑ready LLM and ML features (e.g., document classification, predictive maintenance, AI assistants), including prompt engineering, fine‑tuning, and deployment • Closely collaborate with the founders – you decide on architecture, tools, frameworks, and set technical standards (clean code, testing, code reviews, DevOps processes) Requirements • Deep experience with backend systems, infrastructure, and API design • Thrives in early‑stage environments where speed and adaptability are key • Enjoys solving complex technical challenges with an eye toward scalability and maintainability • Comfortable working in‑person with the founding team (not full‑time remote) • Wants to take ownership – both in equity and in decision‑making Benefits • Founder‑Level Impact: Be one of the first engineers and shape our Tech DNA from day one • Ownership & Design Freedom: Define architecture, stack, standards – determine together with founders • Close Collaboration with founders and investors • Flexible Working: Office in Berlin + remote possible • Equity Options: Become a long‑term shareholder in vivanta Compensation: €60–80k salary + equity (pre‑seed) Location: Berlin, Munich, Hamburg, Germany (on‑site preferred, with flexibility) Start date: January 2026 Seniority level Associate Employment type Full‑time Industries Venture Capital and Private Equity Principals Referrals increase your chances of interviewing at Firstlane Capital by 2x Founding Engineer – PropTech Startup vivanta (Firstlane Capital) We are Sebastian Seifert, Andreas Veller, and Achim Bönsch – graduates of the WHU Bachelor Class of 2011.

After 13 successful years building the fintech company viafintech and ultimately selling it in one of Germany’s largest fintech exits for a nine‑figure amount, we are now pursuing new challenges.

For our portfolio company, vivanta, we are looking for a Founding Engineer who is excited to shape the technical foundation from day one and take on a key long‑term role in the company.

About vivanta With vivanta, we are building an AI‑powered property management company, transforming a centuries‑old €20 billion market in Germany. • High demand in a fully fragmented market • 10+ year customer retention • Strong monthly recurring revenue potential • A massive playground for technological innovation Positioned at the intersection of strong unit economics and exceptional technical execution, we are creating a product that is both indispensable and designed for long‑term market adoption.

Tasks We’re looking for a Founding Engineer who’s excited about shaping a company from the ground up – not just writing code but defining the technical foundation of our product and business. • Design and implementation of end‑to‑end automations in areas such as accounting, invoice approval, communication, and property management – including monitoring, logging, and error handling • Build a scalable, modular platform architecture that integrates ERP, CRM, document management, and digital owner portals.