With the introduction of the Internet-of-Things (IoT), the industrial automation sector is undergoing enormous change towards highly interconnected and distributed automation systems. Following the same trend, the industry faces interoperability challenges between devices and systems, which is hard to establish vertical and horizontal integration of heterogeneous devices, protocols and networks within the IoT systems, which is required to enable the reliable, safe and secure exchange of information within these systems. Everything is taken care of by implementing a microservices architecture. The application and service layers rely on middleware technology which provides the functionality, to seamlessly integrate and deploy.