{"id":2452998,"url":"https://alion.io/job/cesiumastro-staff-mechanical-engineer-5","title":"Staff Mechanical Engineer","company":{"id":5315,"name":"CesiumAstro","domain":"cesiumastro.com","url":"https://alion.io/company/cesiumastro","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":86,"open_postings":31,"ghost_share":0,"stale_share":0.548,"repost_share":0,"time_to_fill_p50_days":48,"computed_at":"2026-10-15T05:46:00Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"staff","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Melbourne, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":107000,"max_usd":210000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1259},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"SolidWorks","optional":false},{"name":"C++","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-10-13T15:12:16Z","employer_posted_date":"2026-10-13","last_verified_at":"2026-10-15T13:48:32Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"We are looking to add a Staff Mechanical Engineer to our Mechanical Engineering team. If you enjoy working in a startup environment and are passionate about developing space hardware for leading-edge communications satellites, we would like to hear from you.\nIn this position, you will be responsible for mechanical design aspects of Cesium phased array antennas, subsystems, and interfaces through all phases of the development process. The ideal candidate will be versatile and proficient in mechanical analysis, electronics packaging, computer-aided design (CAD), mechanical interfaces, thermal architecture, spacecraft propulsion, deployable and actuated structures, and environmental qualification of spacecraft antennas and payloads. You will be responsible for mechanical designs from concept through space flight including requirements definition, architecture trades and block diagrams, analysis, manufacturing, testing, qualification, and in-orbit support.\nThe successful candidate will also present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.\nJOB REQUIREMENTS AND MINIMUM QUALIFICATIONS\nBachelor of Science (BS) in Mechanical or Aerospace Engineering from an accredited university or institution \nMinimum of 8 years of experience in space antenna and payload mechanical engineering to include electronics packaging, thermal, shock, vibration, stress dynamics, and cost. A Master's degree may count as two years of experience. \nExperience in conducting architectural trade studies including parametric and first-order cost and physical analysis \nExperience with professional mechanical and FEA CAD tools, such as Ansys Mechanical, SolidWorks Simulation, and Thermal Desktop \nExperience with CNC manufacturing and GD&T \nExperience with advanced aerospace manufacturing and materials including sandwich panels and carbon composites, OR experience with high-reliability deployment mechanisms for space applications (including deployment, HDRMs, power delivery, etc.).\nProficiency in detailed mechanical design (3D CAD, drawings, etc.) \nExperience designing and manufacturing mechanisms and mechanical actuators \nExperience with EMI/EMC mitigation techniques \nFamiliarity with satellite thermal architectures including heat pipes, phase change materials, contact resistance, and surface finishes as well as fundamental understandings of orbital thermal control in a LEO environment. \nFamiliarity with launch and LEO environments (thermal, shock, vibe, radiation, etc) \nFamiliarity with design for test, manufacturability, assembly, and reliability \nExcellent written and verbal communication skills \nPREFERRED EXPERIENCE\nPython, C++, or other programming languages \nExperience with large, deployable antenna arrays which drive your vision for the next generation of on-orbit communications and sensor arrays.\nRobotics and control systems experience \nPCBA experience.","description_format":"text","description_chars":3026,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Embedded & Electronics Design","Satellite Communications","RF & Wireless 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