• Du entwickelst Java Enterprise Applikationen und entwirfst Domänenmodelle (Entities, Aggregates, Value Objects) • Du implementierst REST-APIs, inklusive DTO-Mapping, Factory/Builder-Pattern und message-basierter Kommunikation (z. B. JMS, Kafka, RabbitMQ) • Du planst und realisierst Integrationen mit unseren ManagedServices • Du entwickelst reaktive Java-Applikationen mit Vert.x und setzt eventgetriebene Architekturen sowie asynchrone Abläufe um • Du implementierst Microservices in Go (REST-/HTTP- oder gRPC-APIs) und erweiterst bei Bedarf unsere Kubernetes-Umgebungen mit CustomResourceDefinitions (CRDs) • Du stellst Qualität durch Unit-Tests, Integrationstests und E2E-Tests sicher

• Design and build scalable backend services with Django / Django REST Framework • Lead architecture reviews in client projects and our own start-ups • Create rock-solid task queues with Celery + Redis / RabbitMQ / Kafka • Implement event-streaming integrations via Kafka or RabbitMQ (publishing, consuming, schema management) • Performance tuning, caching strategies and database optimisation (PostgreSQL, plus NoSQL where it makes sense) • Own the full lifecycle: Docker/Kubernetes, CI/CD, observability, incident response • Drive code reviews & mentoring for mid- and junior engineers • Use AI coding tools responsibly – knowing when they add value and when they don’t

• Develop and evolve our Symfony-based backend, the core of our roaming and transaction hub • Learn, understand and implement e-Roaming integrations based on industry protocols like OCPI, connecting charging networks across Europe • Work with well-defined REST APIs and a microservice-oriented architecture, helping us gradually modernize our monolithic legacy system – guided by pragmatism, not ideology • Build and maintain frontend features using Vue.js and Nuxt.js • Build robust, maintainable code for a high-throughput environment • Collaborate on our journey toward an event-driven ecosystem • Participate in architectural discussions that shape chargecloud's SaaS ecosystem • Leverage AI tools to support and accelerate your daily development work

• Lead and mentor developers to deliver high-quality web applications. • Design, develop, and maintain efficient and scalable backend systems using PHP and Symfony. • Collaborate closely with product managers, designers, QA engineers, and other developers. • Conduct code reviews and enforce coding standards to ensure performance, maintainability, and best practices. • Stay current with technology trends and continuously improve development processes.