This Senior Field Application Engineer will support ADTRAN’s ODM partners (T&W, Xavi, GemTek) during new product introduction and mass production phases. Key responsibilities include understanding and reviewing ODM manufacturing processes, managing PCN changes, inspecting supplier quality, and reporting performance metrics. The role also involves validating production output through OLT-ONT test setups and enhancing ATP tests. Candidates should possess a hardware engineering or manufacturing background with 3-5 years of experience in optical communication products, familiarity with PCBA and optical assembly manufacturing, and fluent English communication skills.