An OT-IT (operational technology-information technology) service of a provider network allows operators to configure gateway connectors for data sources (e.g., machines at an industrial site) and allows developers to specify workflows that consume data from the data sources. To do so, the OT-IT service provides an operator interface to receive topology data for the client's remote network. The OT-IT service configures connectors for data sources based on the topology data and deploys the connectors to gateway devices. The OT-IT service also provides a developer interface to present available data sources and to receive specifications for workflows that consume data from the data sources. The OT-IT service deploys the workflows to execution locations. The OT-IT service then configures the gateways to send tagged data from the connectors to the workflows for processing.