Full Stack Developer (Senior Level) - Subscription Engine Focus

We're a nimble and agile startup revolutionizing the mobility landscape with our innovative subscription-based mobile app. We're seeking a skilled and experienced Senior Full Stack Developer to spearhead the rebuilding of our core subscription engine. In this critical role, you'll be instrumental in designing, developing, and deploying a new, custom-built subscription platform in Kotlin, hosted on Google Cloud, that will power our B2B/B2C solutions. You'll collaborate closely with our Head of System Architecture to bring this vision to life. Tasks As a Senior Full Stack Developer focused on our Subscription Engine, you will: Subscription Engine Re-Architecture: development of our next-generation subscription engine, transitioning away from WooCommerce to a custom solution built in Kotlin and React Backend Development (Kotlin/GCP): Develop robust, scalable, and secure backend services in Kotlin, leveraging the full potential of Google Cloud Platform for hosting and related services. API Development & Integration: Design and implement clear and efficient APIs to connect the new subscription engine seamlessly with our front-end mobile application. (Note: While API connection is crucial, the primary focus of this role is on the backend engine itself, not extensive front-end development.) B2B Solution Focus: Develop and optimize the subscription engine specifically to support our B2B offerings, including the Jobticket+ and the B2B Dashboard. Data Modeling & Management: Design and implement the necessary data models and database schemas to efficiently manage subscription data. Payment Gateway Integration: Integrate with various payment gateways to ensure seamless and secure payment processing within the new subscription engine. Testing & Quality Assurance: Implement comprehensive unit, integration, and end-to-end tests to ensure the reliability and stability of the new subscription engine. DevOps & Deployment: Work with our team to establish and maintain CI/CD pipelines for the efficient deployment and management of the subscription engine on Google Cloud.Collaboration with System Architect: Work closely with our Head of System Architecture on the overall design, architecture, and implementation of the new subscription engine. Requirements Visa: You need a permanent Visa in Germany or other EU countries. Pls don't apply, if you don't have a Visa. 😢 🙏 Exceptions are the following European countries: Albania, Bosnia and Herzegovina, Georgia, Montenegro, North Macedonia, Serbia, Turkey, Ukraine Experience and Skills: Significant experience as a Full Stack or primarily Backend Developer with a strong understanding of system architecture. Proven expertise in developing backend systems with Kotlin and React. Must have: Experience building APIs using a domain-driven design approach. Must have: Experience developing event-driven applications utilizing a publish/subscribe system, with a preference for GCP Pub/Sub. Solid experience with Google Cloud Platform (GCP) and its various services. Strong understanding of API design and development. Excellent problem-solving, debugging, and performance optimization skills, particularly in backend systems. Experience with testing frameworks and methodologies. Personal Attributes: A proactive and ownership-driven attitude with a strong focus on delivering high-quality, reliable solutions. Excellent communication and collaboration skills, particularly in working with technical leadership. Ability to work independently and manage tasks effectively in a remote environment. Benefits What You'll Get: Ownership: The opportunity to lead the development of a critical component of our platform and have a significant impact on our B2B strategy. Modern Tech: Work with modern technologies like Kotlin and Google Cloud, collaborating directly with the Head of System Architecture for learning and growth. AI-first company: We use state of the art tech and automate everything we can. Upside: Equity in the company. Work/Life balance: A four-day week, 100% remote with a team offsite in beautiful locations every 8 weeks. Visa: You need a permanent Visa in Germany or other EU countries → otherwise the share-based payment won't work with your Visa. Pls don't apply, if you don't have a Visa. 😢 🙏 Exceptions are the following European countries: Albania, Bosnia and Herzegovina, Georgia, Montenegro, North Macedonia, Serbia, Turkey, Ukraine