Senior Mechanical Engineer

PI Physik Instrumente, LP

$110K — $170K *
Manufacturing & Automotive
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Mechanical Engineering or a closely related field; Master's preferred.
  • 5+ years of experience in mechanical design or product development with precision motion systems.
  • Proven track record of designing mechanical systems from concept to production.
  • Strong proficiency in 3D CAD software, preferably SolidWorks.
  • Experience in precision manufacturing processes and tight-tolerance fabrication.

Responsibilities

  • Lead design and development of mechanical components for high-precision motion instruments.
  • Own mechanical design execution from concept to production release, including validation.
  • Develop advanced CAD models and detailed engineering documentation adhering to precision standards.
  • Perform engineering analysis to ensure system-level performance and stability.
  • Design precision mechanisms and opto-mechanical assemblies for optimal functionality.
  • Choose appropriate piezoelectric materials for systems; optimize for performance.
  • Program and tune control algorithms to enhance system responsiveness and reduce motion errors.

Benefits

  • Medical plan with HSA through Blue Cross Blue Shield of MA.
  • Dental and vision insurance coverage.
  • Long-term disability and life insurance.
  • Tuition reimbursement program.
  • 12 holidays off each year, plus PTO and sick time.
  • 401k plan with a generous company match.
Full Job Description
Role Overview

We are seeking a highly motivated and experienced Senior Mechanical Engineer - Piezo to join our Engineering team in our Shrewsbury, MA office. The successful candidate will be responsible for designing, developing, and optimizing high-precision mechanical systems and motion instruments from concept through productions.

What We Provide:
  • Blue Cross Blue Shield of MA PPO medical plan with HSA.
  • Dental and vision insurance.
  • LTD & Life insurance.
  • Tuition Reimbursement
  • 12 Holiday days off
  • PTO and Sick Time
  • 401k with a generous company match.
  • And much more


Key Responsibilities:
  • Lead the design and development of mechanical components, subassemblies, and system architectures for high-precision motion instruments across full product development cycles.
  • Own mechanical design execution from concept through production release, including technical decision-making and design validation.
  • Develop advanced 3D CAD models, detailed engineering drawings, and complete design documentation with full adherence to precision tolerance and GD&T standards.
  • Perform and lead engineering analysis including tolerance stack-ups, error budgets, and FEA (thermal, structural, and modal) to ensure system-level performance and stability.
  • Design precision mechanisms, motion systems, and opto-mechanical assemblies, including kinematic structures, flexures, and thermally stable architectures.
  • Design monolithic flexures (often via wire EDM) using CAD software and using ANSYS or SolidWorks to optimize for high resonant frequencies, thermal stability, and stress-strain limits.
  • Choose the right piezoelectric materials and sizing them for optimum stiffness, blocking force, and displacement.
  • Design systems with closed-loop feedback-typically employ capacitive, strain gauge, or laser interferometer sensors-to eliminate hysteresis and creep.
  • Program and tune PID controllers or digital algorithms to ensure maximum bandwidth and minimal parasitic motion (pitch, yaw, and roll).
  • Lead prototype development, assembly, integration, and testing of motion systems, driving iterative design improvements based on test data.
  • Oversee system-level integration, alignment, and performance verification, with emphasis on accuracy, repeatability, drift, and environmental sensitivity.
  • Collaborate closely with electrical, controls, manufacturing, and cross-functional teams to ensure seamless system integration and manufacturability.
  • Evaluate and resolve complex engineering challenges, making independent technical decisions and trade-offs to meet product requirements.
  • Ensure design intent, test results, and engineering decisions are thoroughly documented to support traceability, quality, and production readiness


Qualifications:
  • Bachelor's degree in Mechanical Engineering or a closely related field (Master's degree preferred)
  • 5+ years of experience in mechanical design, product development, or mechatronic systems, with significant exposure to precision motion or high-performance mechanical systems.
  • Demonstrated experience designing and releasing mechanical systems from concept through production in a product development environment.
  • Strong proficiency with 3D CAD software (SolidWorks preferred) for complex assemblies, detailed design, and engineering documentation.


Preferred Qualifications:
  • Experience with precision manufacturing processes such as CNC machining, tight-tolerance fabrication, and assembly methods.
  • Familiarity with design control processes, PDM systems, and engineering change workflows.
  • Experience working within ISO 9001 or similarly structured quality systems; familiarity with lean/5S principles.Background in manufacturing, especially high-mix, low-volume production environments.


The salary range for this role is $110,000-$170,000. Compensation is determined by factors including job-related skills, experience, and relevant education and training.

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