About the Role
We're a seed-stage AI voice communication startup headquartered in Vienna, Austria, building an AI phone assistant platform used by thousands of small and medium-sized businesses across Europe. Our product automates inbound and outbound calls, appointment scheduling, customer service inquiries, and more — with a strong focus on the German-speaking market and European data sovereignty.
As a Founding Product Engineer, you'll take end-to-end ownership of product features — from hypothesis and prototype through to production. You'll work at the intersection of engineering and product, keeping close contact with customers and partners to ship pragmatic, high-impact software fast. This is a high-ownership, high-autonomy role at a fast-growing company.
What You'll Do
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Own features end-to-end: from discovery and hypothesis through architecture, implementation, and release.
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Lead product discovery by rapidly designing and running experiments to validate ideas before investing in large-scale builds.
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Maintain close, recurring contact with customers, partners, and the Sales team to surface real pain points and translate them into product decisions.
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Design and implement tracking and metrics instrumentation to support data-driven iteration.
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Build across the full stack, driving architecture decisions and owning implementation through to production.
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Balance speed of validation with long-term scalability in every solution you ship.
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Take radical ownership of initiatives — move things forward independently without waiting for sign-offs.
What We're Looking For
Must-haves (dealbreakers):
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3+ years of experience in Product Engineering, delivering end-to-end software features.
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Strong full-stack proficiency with Node.js, TypeScript, NestJS, and React.
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Native-level German language proficiency (Deutsch auf Muttersprache-Niveau) — essential for supporting our German-language product and customer base.
Required skills:
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Experience integrating software with external systems such as CRMs, calendar applications, and databases.
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Ability to gather and synthesize customer feedback into actionable product decisions, working closely with customers, partners, and sales.
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Comfort identifying, tracking, and analyzing relevant product metrics to drive data-informed decisions.
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Proven experience with the full software development lifecycle — from architecture decisions through to production release.
Nice to have:
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Experience integrating AI/LLM features (e.g., OpenAI or similar) into production software.
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Familiarity with GDPR compliance and EU AI Act considerations in product development.
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Experience thriving in a remote-first, asynchronous collaboration environment.
Compensation & Benefits
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Salary: €80,000 – €120,000 annually, depending on experience.
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Equity: Meaningful equity stake as an early team member.
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Remote-first setup with optional access to a Vienna office.
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High-autonomy, high-impact role at an early-stage, fast-scaling company.
Location
This is a fully remote role, open to candidates based in Germany (primary) or Austria. You should have meaningful overlap with Central European Time (CET). Visa sponsorship is not available.
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