{"id":1629202,"url":"https://alion.io/job/ralliant-senior-mechanical-engineer","title":"Senior Mechanical Engineer","company":{"id":2241821,"name":"Ralliant","domain":"ralliant.com","url":"https://alion.io/company/ralliant","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"A","score":89,"open_postings":17,"ghost_share":0,"stale_share":0.235,"repost_share":0,"time_to_fill_p50_days":65,"computed_at":"2026-10-14T06:34:16Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Boxborough, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":94000,"max_usd":178000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":5037},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"SolidWorks","optional":false}],"status":"live","first_seen_at":"2026-09-17T15:24:57Z","employer_posted_date":"2026-09-17","last_verified_at":"2026-10-14T09:54:20Z","board_verified":true,"closed_at":null,"days_open":26,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":26},"description":"At Gems Setra, we design sensing solutions that protect critical environments-cleanrooms, hospitals, laboratories, data centers, and advanced HVAC systems that keep people safe and operations running flawlessly. Our mechanical sensor technologies enable precise control of pressure, airflow, temperature, and environmental conditions in the places that matter most.\nWe’re looking for a Senior Mechanical Engineer who is passionate about building innovative, robust, and highly reliable sensors for the next generation of HVAC and environmental monitoring platforms.\nAbout the Role:\nAs a Senior Mechanical Engineer in our Critical Environments product team, you’ll own the mechanical architecture and design of precision sensors used to monitor pressure, flow, temperature, humidity, and air quality parameters in mission-critical spaces.\nYou will work cross-functionally to ensure our designs withstand demanding environmental conditions, integrate seamlessly with electronics and firmware, and exceed our customers’ expectations for accuracy, stability, and long-term reliability.\nEssential Functions:\nDesign and develop mechanical components and assemblies for HVAC and environmental monitoring sensors (pressure transducers, differential pressure sensors, flow sensors, IAQ/IEQ devices).\nCreate detailed CAD models, drawings, GD&T, material specs, and tolerance analyses optimized for accuracy and manufacturability.\nPerform FEA and thermal analysis to validate mechanical robustness under HVAC-relevant conditions (airflow, vibration, humidity, thermal drift).\nLead prototyping, environmental qualification, and reliability testing (pressure cycling, humidity/condensation testing, thermal shock, leak testing).\nOptimize sensor mechanical interfaces for easy installation in air ducts, cleanrooms, mechanical rooms, and building automation systems.\nPartner with Electrical, Firmware, Test Engineering, and Manufacturing on sensor integration and verification.\nDrive VAVE, cost reduction, and design improvements across the product lifecycle.\nProvide technical leadership, mentoring, and support for both NPI and sustaining engineering activities.\nLead and participate in DFMEA for new and existing products\nManage multiple small to medium sized engineering focused projects, including schedule and financial tracking\nEducation & Experience:\nBachelor’s degree with 8+years or master’s degree with 5+ years of experience in Mechanical Engineering.\nStrong background in sensor design for HVAC, building automation, industrial, or environmental monitoring applications.\nProficiency in SolidWorks, Creo, or equivalent CAD tools, including advanced mechanical design and GD&T.\nExperience designing housings and sensing structures using metals, polymers, elastomers, and environmental-grade materials.\nStrong understanding of thermal behavior, airflow dynamics, sealing, and environmental protection (IP ratings).\nExperience designing for manufacturing methods used in HVAC/environmental sensors: machined parts, injection-molded plastics, die-cast housings, welded/brazed sensing elements.\nPreferred: knowledge of differential pressure sensing, piezoresistive or capacitive elements, MEMS, and sensor packaging in harsh environments.\nA collaborative mindset, strong communication skills, and a passion for building high-performance, reliable sensing products.","description_format":"text","description_chars":3357,"description_truncated":false,"requirements":{"experience_years_min":5,"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":[],"lifecycle":[{"event":"open","at":"2026-10-01T21:16:28Z"}],"visa":[],"liveness":{"score":79,"band":"hot","label":"Hiring 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