The selected candidate(s) will be assigned to the Dome and Main Structure (DMS) team in charge of the supervision of the contract for the design, fabrication, transport, erection, commissioning and testing of the protective enclosure ("Dome") and of the telescope structure ("Main Structure") of the Extremely Large Telescope (ELT) at the Cerro Armazones site in Chile.

The DMS Automation Commissioning Engineers will contribute to the supervision on-site of the control system setup and commissioning activities of the DMS Main Contractor company awarded by ESO for the construction, erection, commissioning and testing of the ELT Dome and Main Structure. The DMS Main Contractor has erected a construction camp on site in 2017 with workshops, dormitories and logistical facilities. Construction of the DMS has started in 2018. Excavations and civil works have been largely completed, and the steel structure erection of the Dome and MS elements is in progress. The DMS design and production in Europe is well advanced with the vast majority of the structures and mechanisms already transported at Armazones, now available in the construction camp. Electrical installation on site is about to start in Q2 2025, with the rotating enclosure (Dome), its annex equipment (Chiller and Dry Cooler) and later of the telescope structure (Main Structure). As the DMS can be considered part building, part machine, the control system encompasses elements from various fields including: building automation, lighting, IT and communication infrastructure, HVAC, fire detection and suppression, access control, fluids and power monitoring and distribution, functional safety, and high-end motion control to accurately point the 4500t Main Structure and 6300t Dome to permit the ELT to reach its scientific goals. The control system architecture is based largely on Siemens PLC hardware and protocols (S7-1500 and PROFINET), Siemens WinCC OA for SCADA/BMS, IT infrastructure based on Cisco and Siemens equipment, and low-level devices from various other manufacturers.