Product Engineer (Growth)

<h3>About the Role</h3><p style="min-height:1.5em">Join a small, engineering-heavy team building the leading open-source LLM engineering platform — think "Datadog for AI applications." The platform helps teams trace, evaluate, and manage prompts across the full LLM development lifecycle, and is trusted by a large and rapidly growing base of developers at startups and Fortune 50 enterprises alike. The company recently joined forces with a major data infrastructure player, enabling it to move even faster on product while staying true to open-source and self-hosting.</p><p style="min-height:1.5em">As a <strong>Product Engineer on the Growth team</strong>, you'll own the full funnel — from top-of-funnel awareness through activation, adoption, and expansion — and have real latitude to run bold experiments that directly move the needle on growth.</p><h3>What You'll Do</h3><ul style="min-height:1.5em"><li><p style="min-height:1.5em"><strong>Analytics &amp; data stack:</strong> Build and maintain the product analytics infrastructure (e.g. event tracking, BI tooling, columnar databases) to generate deep insights into user behavior and funnel performance.</p></li><li><p style="min-height:1.5em"><strong>Funnel mapping:</strong> Define and instrument core funnels for each product feature; make it easy for the team to monitor activation, adoption, and retention.</p></li><li><p style="min-height:1.5em"><strong>Experimentation:</strong> Design and run A/B tests and growth experiments — from onboarding flows to in-product nudges — to validate hypotheses and improve key metrics.</p></li><li><p style="min-height:1.5em"><strong>SDK &amp; integration development:</strong> Develop and maintain client SDKs and integrations (multi-language, versioned, packaged) that reduce time-to-value for new users.</p></li><li><p style="min-height:1.5em"><strong>Self-serve &amp; activation:</strong> Build in-product experiences, guided flows, and documentation hooks that help customers reach their "aha moment" faster with less hand-holding.</p></li><li><p style="min-height:1.5em"><strong>Feature adoption &amp; expansion:</strong> Identify and act on opportunities to help customers expand from a single product area to the full platform offering.</p></li><li><p style="min-height:1.5em"><strong>Cross-functional collaboration:</strong> Work closely with product, design, marketing, and sales to align on priorities, communicate tradeoffs, and ship impactful work quickly.</p></li><li><p style="min-height:1.5em"><strong>Open-source community:</strong> Contribute to open-source workflows and engage with a vibrant developer community building cutting-edge AI applications.</p></li></ul><h3>What We're Looking For</h3><p style="min-height:1.5em"><strong>Required</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Based in the EU and able to work EU timezones; willing to be in the Berlin office approximately one week per month.</p></li><li><p style="min-height:1.5em">Legal authorization to work in the EU without employer sponsorship (no visa sponsorship available).</p></li><li><p style="min-height:1.5em">Hands-on experience building or integrating LLM-based applications — including prompt management, LLM evaluation, or observability for LLM systems.</p></li><li><p style="min-height:1.5em">Strong SQL skills and experience querying/analyzing product and usage data in analytical or columnar databases (ClickHouse or similar is a plus).</p></li><li><p style="min-height:1.5em">Experience instrumenting products for metrics and analytics: event tracking, tracing, and A/B experimentation to drive growth outcomes.</p></li><li><p style="min-height:1.5em">Experience developing and maintaining client SDKs or integrations — packaging, versioning, multi-language clients, and release management.</p></li><li><p style="min-height:1.5em">Proficiency with Git-based workflows, code review, CI/CD pipelines, and containerization (Docker).</p></li><li><p style="min-height:1.5em">Strong product sense and the ability to communicate technical tradeoffs clearly to non-technical stakeholders.</p></li><li><p style="min-height:1.5em">Comfortable operating with high ownership and minimal supervision in a fast-moving, small team environment.</p></li></ul><p style="min-height:1.5em"><strong>Nice to Have</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Experience contributing to or maintaining open-source projects and community-driven development workflows.</p></li><li><p style="min-height:1.5em">Background at companies in the AI/ML tooling, developer infrastructure, or data observability space.</p></li></ul><h3>Compensation &amp; Benefits</h3><ul style="min-height:1.5em"><li><p style="min-height:1.5em"><strong>Salary:</strong> €90,000 – €160,000 per year, depending on experience.</p></li><li><p style="min-height:1.5em">Equity participation in a high-growth, well-backed company.</p></li><li><p style="min-height:1.5em">Work with a focused, experienced, and highly collaborative engineering team.</p></li><li><p style="min-height:1.5em">Opportunity to shape the growth trajectory of one of the most widely adopted open-source AI platforms in the world.</p></li></ul><h3>Location</h3><p style="min-height:1.5em">This is a <strong>hybrid role</strong> based in the <strong>EU</strong>, with a preference for candidates in or near <strong>Berlin, Germany</strong>. You'll be expected in the Berlin office approximately <strong>one week per month</strong>. Candidates across EU timezones (Germany, Austria, Switzerland, UK, Netherlands, France, Spain, Sweden, Poland, and similar) are welcome to apply. <strong>Visa sponsorship is not available.</strong></p><p>Find more <a href="https://www.arbeitnow.com/english-speaking-jobs">English Speaking Jobs in Germany</a> on Arbeitnow</a>