Welo Data is seeking a Senior Software Engineer for an on-site, 12-month contract in Santa Clara, California, to build and maintain data collection tooling, pipelines, and robot fleets. The engineer will lead a team of teleoperators, build QA tools, and oversee hardware reliability across physical robotic systems. Candidates must have at least 3 years of experience developing software for real robot systems, strong Python and Linux skills, and a robotics-related degree or equivalent experience.