Founding Engineer for PropTech startup

Firstlane Capital; Berlin; Hybrid; EUR 60.000 - 80.000; Vollzeit

Benefits dieser Stelle

Founder-Level Impact

Ownership & Design Freedom

Close Collaboration with founders

Flexible Working

Equity Options

Zusammenfassung

A new technology startup in Berlin seeks a Founding Engineer to shape their product's technical foundation. You will not only write code but develop an entire scalable architecture while working closely with the founding team. This position emphasizes ownership, innovation, and adaptability in a dynamic environment. Ideal candidates have deep backend experience and are excited about early-stage challenges. Compensation ranges from €60–80k plus equity options, with a flexible work model including office and remote work opportunities.

Qualifikationen

• 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.

Aufgaben

• Design and implement end-to-end automations in various areas.
• Build a scalable, modular platform architecture focused on security.
• Develop production-ready LLM and ML features.
• Collaborate closely with founders to decide on architecture and tools.

Jobbeschreibung

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. 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

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