Frequently Asked Questions How do I get a job with Doulos Concrete? We are always looking for qualified, dedicated employees, looking to work with our growing company. Please complete our Careers form to apply! Is Doulos Concrete accepting new business from other General Contractors? Yes, we are always looking for new partnerships, please use the Contractor’s form to get in touch! Does Doulos Concrete work outside of Arizona? No. We serve Tucson and surrounding areas only. Does Doulos Concrete only work with commercial contractors? No, however, we work primarily with local contractors and sub-contractors.