Mechanical Engineer - Mechanical Systems Design and Analysis

We are a fast-paced business with ambitious growth plans; so if you are dedicated, enthusiastic and always seeking ways to improve, you'll enjoy a career with us Mechanical Engineer - Mechanical Systems Design and Analysis Ontic is a leading global aerospace OEM trusted by the world's aviation leaders. Specializing in precision engineering, MRO, and new solutions for parts at risk of obsolescence, Ontic has over 1,500 customers in the commercial, civil and defense aerospace markets. With over 1,300 employees across four time zones and seven sites, we have more than doubled in size since 2019 and are continuing to grow at pace. Centroid, Inc. is a defense electronics manufacturer with a 60-year history of solving some of the military's most difficult engineering and sourcing challenges. Centroid, Inc. is recruiting for a Mechanical Engineer to join the team, reporting into the Engineering Manager of Centroid. This role demands a strong understanding of mechanical systems, expertise in 3D modeling, and in-depth knowledge of industry standards (e.g., MIL-STD-810, ANSI/ASME Y14.5) to ensure designs meet performance, durability, and manufacturability criteria. Ideal candidates will excel in independently managing projects from concept through to production and demonstrate expertise across various areas, including production processes, electrical engineering (EE) interfaces, and design for manufacturing (DFM). Strong technical writing skills, including Statement of Work (SOW), and development of NRE cost. Solid experience in authoring Qualification Test Plans and Reports are a must. To be considered for the Mechanical Engineer opening, here's what you'll need to bring with you: Master's (preferred) or Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or a related field. Minimum of 10 years in mechanical systems design, analysis, and complex assembly integration in aerospace, automotive, or high-precision manufacturing environments. Background in high-precision or aerospace manufacturing and production processes. Experience with vendor coordination, sourcing for complex assemblies, and knowledge of electronic and mechanical integration. Proficiency in CAD software (SolidWorks, CATIA, Creo) for detailed modeling and assembly drawings. Experience with Finite Element Analysis (ANSYS Mechanical ). Strong understanding of ANSI/ASME Y14.5 GD&T, MIL-STD-810 for environmental testing, MIL-STD-461G for EMI, and SAE standards for material and component testing. Experience with structural analysis, materials selection, and performance testing, particularly for high-stress and complex assemblies. Knowledge of production processes, including DFM principles, lean manufacturing, and an understanding of PCB fabrication and assembly. As a Mechanical Engineer , you will : Develop detailed mechanical designs and 3D models per ANSI/ASME Y14.5 geometric dimensioning and tolerancing (GD&T) standards. Perform part decomposition, design updates, and assembly integration for complex, high-reliability systems (MIL-STD-810G). Interface with electrical engineering (EE) teams to ensure design compatibility with Engineering Analysis and Testing Conduct torque, stress, and structural analyses to confirm material suitability under MIL-STD-810 environmental conditions, including temperature, vibration, and shock resistance. Perform trade-off analyses and validate designs against MIL-STD-461G (EMI) and SAE AS9100 for quality. Execute final functional testing and compliance assessments, ensuring adherence to performance specifications. Select materials and classify components based on standards such as SAE AMS (for metals) and ASTM for polymers, ensuring optimal performance for machining, casting, and injection molding. Collaborate with vendors to source materials and components, conducting feasibility studies on off-the-shelf (OTS) vs. custom parts, considering DFM and lean manufacturing principles. Prepare and maintain engineering documentation, including specifications, process sheets, test procedures, and Acceptance Test Procedures (ATP) compliant with AS9100 quality management requirements. Ensure designs align with MIL-STD-130 for marking and traceability, producing comprehensive documentation packages for manufacturing and quality assurance. Lead design reviews, integrating cross-functional feedback from customer requirements, production, quality, and EE teams to refine and optimize designs. Coordinate with PCB fabrication and assembly teams to ensure smooth transitions from design to production, supporting DFM and process improvements for manufacturing readiness. Our Benefits: Comprehensive medical insurance Competitive PTO, holiday pay, and sick leave Company 401k plan with up to 4% matched contribution Annual bonus program (varies by level and discretionary based on company and individual performance) Flexible working arrangements Paid volunteering opportunities Access to mental health champions across our sites Commitment to development Employee referral program Salary Range : $120,000 - $150,000/year, based on experience LI-Onsite This position requires access to U.S. export-controlled information. EOE/AA Minority/Female/Sexual Orientation/Gender Identity/Disability/Veteran Please click here to review Ontic's California Consumer Privacy Act policy. Ontic Engineering and Manufacturing Inc. is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex including sexual orientation and gender identity, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law. This position requires use of information which is subject to the International Traffic in Arms Regulations (ITAR). All applicants must be U.S. persons within the meaning of the ITAR. The ITAR defines a U.S. person as a U.S. Citizen, U.S. Permanent Resident (i.e. 'Green Card Holder'), Political Asylee, or Refugee.