Siyar Kaya currently holds multiple positions at Guevara Umweltdienste Entsorgungsgesellschaft mbH, including Projektmanager since August 2024, Bauleiter since August 2023, and Geschäftsführer since February 2023. Guevara Umweltdienste aims to provide affordable and effective waste disposal services to both private and commercial clients across the Ruhegebiet, with a comprehensive range of waste management solutions managed from the Oberhausen location.
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