Senior Mechanical Engineer

Senior Mechanical EngineerAustin, TexasApptronik is a human-centered robotics company developing AI-powered robots to support humanity in every facet of life. Our flagship humanoid robot, Apollo, is built to collaborate thoughtfully with people, starting with critical industries such as manufacturing and logistics, with future applications in healthcare, the home, and beyond. We operate at the cutting edge of Applied AI, applying our expertise across the full robotics stack to solve some of society's most important problems. You will join a team dedicated to bringing Apollo to market at scale, tackling the complex challenges like safety, commercialization, and mass production to change the world for the better.Job SummaryWe are seeking a Senior Mechanical Engineer to design and develop our Apollo humanoid robots across the full product lifecycle—from concept through production and sustaining.In this role, you will apply strong engineering fundamentals and practical experience to solve well-defined and moderately ambiguous technical problems. You will collaborate closely with cross-functional partners in electrical, software, manufacturing, quality, and operations to deliver designs that meet performance, reliability, cost, safety, and manufacturability requirements.Senior engineers are expected to own significant subsystems or features, execute with minimal supervision, and contribute meaningfully to technical discussions and design reviews. This role includes informal mentorship of junior engineers and participation in team technical standards, but does not require org-wide technical leadership.Essential Duties and Responsibilities or Key AccountabilitiesDesign and develop mechanical components, subsystems, and assembliesOwn designs from concept development and prototyping through production release and sustainingPerform design trade studies and support technical risk reductionApply DFMA principles and support manufacturing readiness and production rampPlan and execute verification and validation testing for assigned designsPerform or support mechanical analysis, including static, thermal, and fatigue analysisInvestigate test, manufacturing, and field issues; support root-cause analysis and corrective actionsCreate clear and complete design documentation, drawings, and specificationsParticipate in technical design reviews and cross-functional discussionsCollaborate with suppliers, contract manufacturers, and internal manufacturing teamsSupport engineering change management (ECO/ECN) and design traceabilityProvide guidance and informal mentorship to junior engineersEducation and/or ExperienceBachelor's degree in Mechanical Engineering5+ years of experience in a related mechanical engineering roleProven ability to independently own and deliver mechanical subsystems or featuresStrong experience with DFMA, manufacturing processes, and production supportProficiency in mechanical analysis methods, including FEA and analytical calculationsHands-on experience with prototyping, verification, and validation testingSolid understanding of materials selection, GD&T, and tolerance stack-up analysisExperience integrating mechanical designs with electronics, software, and motion systemsFamiliarity with tooling, fixtures, automation, or test equipment design is a plusKnowledge of regulatory, safety, and compliance considerationsStrong communication skills and ability to collaborate across disciplinesDemonstrated ability to mentor junior engineers and contribute to team technical standardsPhysical RequirementsProlonged periods of sitting at a desk and working on a computerMust be able to lift 15 pounds at timesVision to read printed materials and a computer screenHearing and speech to communicate*This is a direct hire. Please, no outside Agency solicitations.Apptronik provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.