Looking for a Sr Mechanical Engineer who will completely own projects from START TO FINISH! Job Description + 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. + 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. Additional Skills & Qualifications Exp in electro-mechanical systems design and qualification. Exp in high-precision or aerospace manufacturing and production processes. Experience with vendor coordination, sourcing for complex assemblies, and knowledge of electronic and mechanical integration. Ability to manage multiple projects independently with minimal oversight. 6+ years of Mechanical Engineering experience Employee Value Proposition (EVP) 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 Work Environment Small company environment here, only about 15 people on site there, all dedicated to engineering on site here. Very collaborative work environment, everyone working towards the same goals. Casual attire and very friendly. Opportunity to get on the ground floor of a growing facility as they're creating a center of excellence here on Long Island and growing for the future. About Actalent Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 30,000 consultants and more than 4,500 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. Diversity, Equity & Inclusion At Actalent, diversity and inclusion are a bridge towards the equity and success of our people. DE&I are embedded into our culture through: + Hiring diverse talent + Maintaining an inclusive environment through persistent self-reflection + Building a culture of care, engagement, and recognition with clear outcomes + Ensuring growth opportunities for our people The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email actalentaccommodation@actalentservices.com (%20actalentaccommodation@actalentservices.com) for other accommodation options.