We are urgently seeking several Offset Printing Machine Operators to join a graphic arts company located in Arganda del Rey. The main responsibilities include: * Preparation and adjustment of printing process components. * Preparation of necessary raw materials. * Quality control of printed materials. * Troubleshooting and handling of incidents occurring during the printing process. * Other duties related to the position. Full-time schedule of 40 hours per week from Monday to Friday, on rotating shifts (morning and afternoon) between 07:00 and 23:00, with legally mandated breaks. * Minimum of 3 years' experience operating offset machinery, preferably Heidelberg 72x102 with varnish tower. * Proficiency in offset printing techniques. * We are looking for proactive, autonomous individuals seeking long-term employment stability. * Proximity to the workplace is a plus. Training in graphic arts or a related field.