Full Stack Product Engineer (100% Remote - Germany | UK | Ireland)

Build analytics people can trust. Help define what analytics looks like in an AI-first world. Most analytics platforms ask organisations to trade control for insight. For almost 20 years, Matomo has shown there is another way: powerful, transparent and trustworthy analytics that respects privacy, gives organisations ownership of their data, and helps people understand what's happening, make better decisions, and improve their work. More than one million websites use Matomo. That means you'll work on software that is widely used, technically demanding, and close enough to customers that your work has a visible impact. It's a rare opportunity for engineers: solving meaningful, complex product problems while seeing the difference your work makes for customers. We are independent, profitable, and open source. We are not trying to become a smaller copy of Big Tech analytics platforms. We are building a different kind of analytics company: one where privacy, transparency, customer control, and product quality are part of the core product, not marketing claims. This role focuses on Matomo Core, the foundation of our product and the platform our open-source users, cloud customers, and wider plugin ecosystem depend on. If you want unusually high ownership, visible impact, hard product & platform problems, and the opportunity to strengthen a widely used open-source platform, Matomo is worth a serious look. Why this role matters Matomo Core is the foundation of our open-source product, cloud platform, plugins, integrations and customer-facing features.  It has evolved over many years and operates across a wide range of environments, use cases and data volumes. Every improvement to Core benefits customers, open-source users, plugin developers and engineering teams across the Matomo ecosystem.  We are bringing responsibility for Core into a newly formed European team. You'll help shape how this team works, where it focuses and how it creates the greatest impact across Matomo.  As a Product Engineer, you’ll help decide where Core can create the greatest impact. That could mean solving a difficult customer problem, strengthening an existing capability, creating a new platform capability, or simplifying the Core platform to make it easier to evolve.  You’ll work on a mature and technically complex product. The challenge is not simply to preserve what exists. It is to understand why it exists, recognise where it is holding customers or engineers back, and evolve it without disrupting the open-source users, customers, integrations and plugins that already depend on it.  What you’ll own You'll own problems, not just code.  This is not a traditional feature-ticket engineering role. You'll understand customer problems, shape solutions, build across the stack, ship incrementally and continuously improve what you release. AI should be part of your everyday workflow.  You'll own work from problem to outcome:  Understand the problem before committing to a solution.   Help shape priorities, not just implement them.   Build across the stack wherever the problem takes you.   Ship incrementally and learn from real usage.   Measure outcomes and iterate.   Use AI throughout your workflow.  For senior: You'll help shape what we build, not only how we build it. You'll identify opportunities others haven't seen, influence technical and product direction, and help establish how the Core team operates as it grows.  For intermediate: You'll contribute to deciding what we build, working closely with product, engineering and customers rather than simply implementing predefined requirements. You'll own meaningful problems end-to-end while building confidence in navigating ambiguity and product trade-offs.  What the work looks like  You'll work across the Core platform wherever you can create the greatest impact.  Examples include:  Dia