Principal Mechanical Engineer

Overview We are seeking a Principal Mechanical Engineer to provide technical leadership for the Vibration Control Group, developing and sustaining precision vibration isolation and structural support products (optical tables, breadboards, platforms, isolators, and integrated customer solutions). The role involves owning challenging mechanical designs from concept through release, guiding verification and validation, and partnering cross‑functionally with product management, manufacturing, supply chain, quality, and sales to deliver high‑performance, manufacturable, and cost‑effective solutions. Key Responsibilities Lead mechanical design of vibration control products and custom customer solutions, balancing performance, cost, schedule, and manufacturability. Own requirements definition and technical trade studies (stiffness, damping, modal behavior, load capacity, thermal effects, cleanliness/non‑magnetic constraints, vacuum compatibility as applicable). Perform analysis and simulation (hand calculations, FEA, vibration/modal analysis) and correlate models to test data. Define and execute verification/validation strategies, including prototype builds, characterization tests, environmental/vibration testing, and design reviews. Serve as a technical authority and mentor, reviewing designs and coaching junior engineers/designers. Drive technical risk management: proactively identify failure modes, conduct root‑cause investigations, and implement corrective/preventive actions. Maintain complete engineering documentation (CAD, drawings, GD&T, BOMs, test plans/reports, compliance documentation) in accordance with MKS processes and PLM/ERP systems. Collaborate cross‑functionally with product management and sales to support roadmap execution, technical customer engagements, and lifecycle management of existing platforms. In addition to the above responsibilities, perform material job duties such as following directions, interacting with customers and vendors, maintaining confidentiality, and ensuring trustworthiness, reliability, and good judgment. Qualifications Bachelor’s degree in Mechanical Engineering or a closely related discipline (required); Master’s degree preferred. 8+ years of progressive mechanical engineering experience in precision mechanical systems and vibration mitigation. Demonstrated expertise in structural dynamics and vibration fundamentals, and ability to apply them to real products. Proficiency with 3D CAD (SolidWorks preferred), including GD&T, tolerance analysis, and creation/review of production‑ready drawings and BOMs. Experience with analysis tools (ANSYS or equivalent) and test correlation; ability to select appropriate simplifications and validate assumptions. Hands‑on prototyping and test experience: instrumentation, test planning, data analysis, and clear technical reporting. Proven ability to lead technical workstreams, drive design reviews, and influence cross‑functional decisions without direct authority. Strong problem‑solving and root‑cause analysis skills with a track record of closing issues in design and production environments. Excellent written and verbal communication skills, including the ability to translate technical details for customers and internal stakeholders. Customer‑facing experience (requirements clarification, technical reviews, issue resolution) strongly preferred; willingness to engage with customers is a must. Comfort operating in a regulated/quality environment with disciplined configuration control and documentation practices. Preferred Qualifications Experience designing vibration isolation/support systems (optical tables, breadboards, pneumatic/electronic isolation, elastomeric systems) and/or precision welded structures. Experience with PLM/ERP systems (Agile, SAP, etc.) and familiarity with cleanliness/non‑magnetic materials, vacuum compatibility, and RoHS/REACH considerations. Physical Demands and Working Conditions Ability to travel domestically and internationally as necessary to support business goals (travel estimated Compensation & Benefits Salary Pay Range: $140,000.00 – $210,000.00 per year. Bonus: This position is eligible for a discretionary annual bonus, amount to be determined by MKS. Benefits include health insurance coverage (medical, dental and vision), 401(k) with company match, life and disability insurance, 12 paid holidays, sick time, 15 paid vacation days, 6 weeks fully paid parental leave, adoption assistance and tuition reimbursement. The company offers a comprehensive benefits package and may provide signing bonus and participation in stock programs. Equal Opportunity Employer & Legal Notices MKS Inc. is an equal opportunity employer, including disability, veteran status and all categories protected by law. The company does not sponsor work visas for this position. MKS is committed to recruitment and hiring qualified applicants in states where it is registered to do business and to providing reasonable accommodations for qualified individuals with disabilities. Background checks and drug screens are conducted in accordance with applicable law and company policies. Applicants for positions subject to ITAR or EAR regulations may need to be “U.S. persons.” Applicants should contact View email address on click.appcast.io for needed accommodations during the application or interview process. EEO Statements "MKS Inc. and its affiliates and subsidiaries ("MKS") are affirmative action and equal opportunity employers: diverse candidates are encouraged to apply. Hiring decisions are based on merit, qualifications, and business needs. We conduct background checks and drug screens in accordance with applicable law and company policies." #J-18808-Ljbffr