About the Role
This is a senior individual contributor role on a small, fast-moving engineering team building an AI-powered phone assistant for European SMEs. You'll own features end-to-end — from discovery and architecture through to release — and your work will have a direct, measurable impact on thousands of business customers.
What You'll Do
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Take full ownership of product features from initial idea and prototype through architecture, implementation, and release.
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Engage regularly with customers, partners, and Sales to surface real pain points and turn them into product improvements.
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Run lightweight product discovery by forming hypotheses and validating them with quick experiments before building large systems.
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Instrument your work and gather the metrics needed to support data-driven decisions.
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Build pragmatic, scalable software that balances immediate customer value with long-term maintainability.
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Communicate asynchronously and prioritise shipping over excessive meetings.
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Act with radical ownership — push initiatives forward without waiting for direction.
What We're Looking For
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5+ years of experience as a fullstack engineer with end-to-end delivery responsibility for customer-facing web applications.
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Strong hands-on experience with Node.js, TypeScript, NestJS, and React.
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Native-level German proficiency — essential for supporting a German-language AI product.
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Fluent English for team and internal communication.
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Product mindset: you measure success by customer value, not lines of code.
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Proven experience with product discovery, hypothesis-driven experimentation, and metrics-based decision making.
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Track record of collaborating directly with customers, partners, or sales teams to define and validate product value.
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Strong CS fundamentals and sound judgment when trading off speed, quality, and effort.
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Experience integrating LLMs (e.g. OpenAI APIs) into production applications is a significant plus.
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Familiarity with GDPR or EU AI Act considerations for AI services is a plus.
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Experience deploying AI-enabled services on cloud infrastructure in Europe (e.g. Azure) is a plus.
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Prior experience in a high-growth startup environment is a plus.
Compensation & Benefits
Salary range: €80,000 – €120,000 per year. Visa sponsorship is not available.
Location
Fully remote, with a preference for candidates based in Germany or Austria (CET timezone overlap required). An office in Vienna, Austria is available for those who prefer it.