Sinch is seeking a Sales Engineer specializing in SIP who excels in complex and dynamic environments. This role combines technical expertise in Voice, Messaging, Email, and OTT communications with strategic customer engagement. The position focuses primarily on Elastic SIP Trunking (EST) support, from initial customer contact through deployment. The ideal candidate will bring strong technical, analytical, and communication skills, managing pre-sales activities and complex projects across multiple vertical segments. This remote position offers competitive compensation and comprehensive benefits, including healthcare, 401(k) matching, and flexible work arrangements. The role requires 5+ years of experience in Sales/Solutions Engineering and deep expertise in SIP trunking solutions and VoIP technologies.