Does working on large, integrated electro-mechanical systems-from small-scale engineering builds to full-scale production and global deployment-excite you? Do you feel driven to dive in when others say something is too difficult or impossible? Are you the "go-to" engineer when it comes to figuring out how to build and scale something that's never been done before? At Zipline, our work is built for the real world. Families and patients rely on us every day-there's no room for falling short or aiming low. If you're passionate about using your engineering talent to create elegant, effective manufacturing solutions, read on. We're looking for a highly experienced and dynamic Senior Manufacturing Engineer to join our team. In this role, you'll be responsible for designing and scaling multiple in-house final assembly lines for our aircraft, zips, docks, and several critical feeder sub-assemblies. You'll ensure these lines can meet growing demand-from tens of units per week to hundreds over the next three years-while continuously driving down cost and elevating product quality. If you thrive in a fast-paced environment, enjoy managing multiple new developments at once, and can quickly align teams and drive toward solutions, we'd love to hear from you. As a Senior Manufacturing Engineer, you will play a critical role in scaling our in-house manufacturing capabilities while developing new processes to support design changes and new internal builds. You'll apply your technical expertise to deeply understand fundamental design requirements and ensure they are consistently met in production. This role is highly cross-functional-you'll collaborate with design engineers, supplier industrial engineers, operations program managers, quality engineers, maintenance teams, and manufacturing technicians. As the ultimate owner of your manufacturing lines, you'll be responsible for developing and validating in-house processes, designing and modifying line layouts, and overseeing fixture and equipment design and fabrication. Your first major project will involve building a new manufacturing line-including processes and equipment-to bring in-house a complex electro-mechanical sub-assembly that feeds into our top-level assemblies. You're a seasoned manufacturing engineer with a track record of developing manufacturing lines from prototype and early engineering builds through to full-scale (potentially highly automated) production. You're adept at identifying failure modes that could disrupt high-volume operations, and you proactively design solutions to detect or prevent issues before they arise. With a strong understanding of manufacturing constraints and capabilities, you offer design suggestions that are both efficient to produce and straightforward to inspect. You approach process improvement with an unbiased mindset, distinguishing between critical fixes and nice-to-haves. You raise design and process concerns with humility and foster a collaborative environment where ideas are openly shared. As a trusted technical mentor, you provide guidance and share best practices with junior team members, reviewing their work and supporting their growth.