Who we are At Rinkel, we make sure entrepreneurs are professionally reachable, without any hassle. We believe business communication should be simple, adaptable, and reliable, so founders and teams can focus on what really matters: growing their business. Our growth shows that this approach works. Over the past year, we’ve launched Rinkel in multiple European countries, introduced Rinkel AI Insights to help customers better understand their communication, and expanded our offering with fixed-line telephony. We’re moving fast, building new products, and continuously improving our platform. And that’s exactly why we’re looking for an experienced engineer to help us scale sustainably. The role As a Senior Software Engineer (Laravel), you’ll play a key role in maintaining and expanding Rinkel’s Laravel-based backend platform. This platform powers critical internal systems such as invoicing, customer insights, sales, and marketing tools - all essential to how Rinkel operates and grows. You’ll work closely with frontend developers, product, and support colleagues across the Netherlands and Spain to deliver reliable, data-driven solutions. This is a hands-on role with a strong focus on quality, scalability, and ownership. You won’t just implement features, you’ll help shape how our backend systems evolve. What you'll be doing: Design, build, and maintain backend services and internal APIs using Laravel. Develop and improve data-driven features for invoicing, customer insights, and internal support tools. Integrate with a wide range of external APIs, including billing, CRM, analytics, and marketing platforms. Work with and combine multiple data storage systems such as MySQL, Redis, and MongoDB. Build and maintain background processes using Laravel queues and jobs (Redis-based), cron scheduling, and real-time data streams with MongoDB. Collaborate closely with frontend developers to ensure clean, well-documented, and reliable API i