Graña Ariel Martín is a Ing. telecommunication at Argentine Army. They possess expertise in ip, telecommunications, voip, mpls, mobile devices and 21 more skills. Colleagues describe them as "Ariel is a very professional worker and it was a pleasure to work with. He has a lot of knowledge to achieve success." and "I have known Ariel Graña for approximately three years working in Telefonica, and I would like say that he is a highly qualified engineer, self-started and a very reliable person. Ariel demonstrate an incredible initiative, a strong dedication and commitment to the customers we've been servicing by that time. He always found time to help workmates and was actively collaborating with everybody within the company. I believe Ariel exhibits many of the qualities that are essential to… Show more"