Senior Full-Stack Engineer PHP/JS

£70,000 - £95,000 a year Hello Senior Full Stack Engineers The ideal candidate is motivated by creating real impact — producing practical, usable outcomes rather than overengineered or purely experimental solutions. Operating in a small, autonomous team, this person will combine strong technical execution with product-oriented thinking to help shape the future of Matomo. Efficiency, creativity, and execution are paramount. About InnoCraft and Matomo At InnoCraft, we’re building a more ethical, privacy-first digital world. As the leading open-source web analytics platform, Matomo powers over 1 million websites and apps in 190+ countries, offering organisations the insights they need while maintaining full data ownership and user trust. In Germany, Matomo is particularly popular with public institutions, universities, and companies that take GDPR compliance seriously. We believe in openness, privacy, and transparency. Every month, our platform processes billions of data points — transforming complex information into intuitive, powerful reports that delight users. Matomo is available in 50+ languages and supported by a global, fully remote community with strong hubs in New Zealand, Germany and France. If you are interested you can take a look at our Github here. Why Matomo Privacy-first: Ethical analytics built around GDPR and user trust. Open Source: Shape a platform used in 190+ countries. Global team: Work with colleagues across Europe, New Zealand, and Canada. Established & Growing: Profitable and self-funded, with double-digit growth for 5+ years and a steadily expanding global team. Fully Remote: 100% work-from-home within Germany, with flexible hours. Career Growth: Clear Engineering Career Development Framework supporting skill progression and leadership growth. High Calibre Team: Join a collaborative group of experienced engineers focused on innovation and impact. AI-Empowered Development: Use AI tools and practices to accelerate experimentation, development, and quality. What you will do Full-Stack Innovation Development: You will design, prototype, and deliver new features across backend (PHP) and frontend (JS) that extend Matomo’s capabilities. Python and node.js may be involved too. Rapid Prototyping & Validation: Quickly test new product ideas — including but not limited to AI/insights — and validate them with real-world use cases. End-to-End Ownership: Own ideas end-to-end, from concept through deployment. Product-Centric Engineering: Think beyond code — consider usability, scalability, security, and long-term value when shaping new features. Cross-Functional Collaboration: Collaborate directly with Matomo’s co-founders and senior engineers using Slack, Jira and Confluence. Autonomous Execution: Operate effectively in a small, lean team with minimal oversight, driving projects forward independently. Impediment Management: Proactively identify and resolve blockers to progress; elevate when outside support is needed to keep innovation moving. Exploration Beyond AI: Identify and develop innovation opportunities across analytics, visualization, integrations, and user experience — not just AI. Knowledge Sharing: Document and communicate concepts, prototypes, and learnings to spread innovation practices across the company. Continuous Learning: Stay current with emerging technologies, frameworks, and product trends to bring fresh perspectives into Matomo. Qualifications Essential Skills 5+ years experience with backend development in PHP and experience in frontend development in Vue.js / JavaScript Track record of delivering features end-to-end — from concept through prototyping to production. Ability to work autonomously in a small, fast-moving team, managing priorities and driving output without heavy oversight. A product-oriented mindset: able to translate user needs and strategic goals into practical, impactful solutions. Comfort balancing speed and quality: delivering quickly while avoiding over-engineering. Strong problem-solving skills with a pragmatic approach to new technologies and innovation. Understanding of security vulnerabilities and how to avoid them. Skilled at writing automated tests, reviewing code and writing documentation. Professional English communication skills, with the ability to clearly share ideas, rationale, and trade-offs. Must be comfortable working in a 100% remote, global and agile environment. Nice to Have Experience with analytics, reporting, data visualisation, or AI/ML integrations. Background contributing to or building on open source projects. Familiarity with UX principles and/or data-driven product design. Prior experience in an innovation, R&D, or product prototyping role. German language proficiency. Benefits Fully remote within United Kingdom Budget for co-working space or work from home Home office equipment (desk, chair etc) supplied after probation period Flexible hours - we respect work life balance 25 Paid holidays per year plus your national public holidays Sick leave Health Insurance: Your Well-being, Our Priority A huge “playground” to grow your skill set Volunteering Day: Empower Your Impact Compassionate leave, including for pet loss. Training Opportunities Mental Health Support Services Opportunity to have an immediate impact on a product that is used by more than 1 million websites and almost 2% of the whole Internet Opportunity to work in a customer obsessed business, dedicated to building high-quality software with a strong mission of helping people grow their web projects while keeping full control of their data Location 100% Remote work position Must be based in United Kingdom Diversity and Inclusion InnoCraft celebrates the things that make you, you We are an inclusive employer and do not discriminate against any employee or applicant for employment because of race, color, religion, sex, sexual orientation, gender identity, national origin, age, marital status or disability. We actively seek diversity in our workplace and embrace individuals with unique backgrounds, perspectives, and abilities Come join our growing team that’s helping ensure a safer, more privacy-focused web/internet #LI-Remote #J-18808-Ljbffr