Growth Engineer

Job description

We're looking for a Growth Engineer who thrives at the intersection of engineering, data, and product strategy. In this role, you'll drive revenue growth by optimizing our upsell and conversion funnels through rapid experimentation, data-driven insights, and smart automation.

You'll be the technical engine behind our growth initiatives—building in-product experiences, running experiments, and creating the infrastructure that helps us understand and influence user behavior at scale.

About Nmbrs:

We're a fast-growing scale-up building innovative HR & payroll technology. With 150+ colleagues in Amsterdam, Lisbon, and Stockholm, we do things differently. No traditional managers, a 4-day workweek, and the freedom to make an impact.

Job requirements

In this role, you will:

• Design and implement end-to-end growth experiments—from hypothesis to implementation to post-launch analysis
• Build and ship behavior-based user experiences that drive onboarding, activation, and retention across Nmbrs product suite
• Use product data and funnel analytics to identify friction, uncover opportunities, and prioritize engineering work that delivers business impact
• Collaborate with Product, Design, Data and Marketing colleagues to deliver high-velocity experiments that improve core funnel metrics
• Leverage A/B testing frameworks and in-app engagement tools to optimize personalized user journeys
• Build internal tools and automation to support rapid iteration and testing infrastructure
• Share experiment outcomes, insights, and next-step recommendations with stakeholders across product and business function

What you'll bring:

• Proficiency in HTML and comfortable working with frontend technologies (essential for WalkMe implementation)
• Experience with A/B testing frameworks and statistical analysis methods
• Hands-on experience building automations in HubSpot or similar marketing automation platforms
• Familiarity with data pipeline concepts and tools—you can maintain and troubleshoot data flows
• Solid understanding of APIs and integration platforms like Zapier and n8n
• You understand user psychology, conversion funnels, and behavioral drivers
• You can translate numbers into narratives and actionable insights
• Strong communicator who can explain technical concepts to non-technical stakeholders
• Comfortable working across functions with design, data, and marketing colleagues
• Proactive in sharing learnings and advocating for data-informed decisions
• Speak English fluently (fluency in Dutch is a plus)

What's in it for you:

• We offer a gross annual salary of 50k to 60k including holiday allowance, depending on experience
• Nmbrs is a flat organisation in which you have the freedom and responsibility to do what you are good at and have an impact, in an agile working environment
• A personal coach who helps you with your personal and professional growth as well as a yearly budget for training and personal development
• We ensure a healthy work-life balance
• For us full-time means a 4-day workweek giving you one paid personal day to spend in a way that will benefit you the most;
• We have a big and light office space close to the Sloterdijk train station, and all the floors of the office are accessible by elevator
• We work hybrid at Nmbrs
• We kick off the summer by bringing all offices together for an amazing event at a very secret location to spark togetherness and innovation and celebrate with each other
• Additionally we organise fun events of different themes every month, think: game nights, movie nights, ping pong tournaments, or pizza party (all events are voluntary)
• Nmbrs offers the opportunity to go on an exchange to our offices in Lisbon or Stockholm for up to 4 months

Please note: We are not able to consider candidates who are not living and working in the Netherlands. At this moment we are not providing relocation sponsorships.

As part of our hiring process, we conduct a criminal background check for all candidates reaching the final stages. This helps us ensure a safe and secure environment for everyone.

At Nmbrs, we celebrate diversity and promote an inclusive environment where our team members from all backgrounds, ages, genders, or sexual orientations feel equally appreciated. In order to achieve this, we are committed to shaping a hiring process that provides everyone with an equal opportunity to get hired.

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