Senior Mechanical Engineer
Country/Region: United States
Job Location: Shrewsbury
Required Travel (%): Less than 20%
Work Model: onsite
Senior Mechanical Engineer
Your MissionWe are seeking a highly motivated and experienced Senior Mechanical Engineer to join our team. The Senior Mechanical Engineer's role is to design, develop, and optimize high-precision mechanical systems and motion instruments from concept through production, providing robust, high-performance solutions that meet demanding requirements for accuracy, stability, reliability, and manufacturability.
How you will make a difference- 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.
What you should be good at- Minimum five years of experience in mechanical design, product development, or mechatronic systems, with significant exposure to precision motion or high-performance mechanical systems.
- Bachelor's degree in mechanical engineering or closely related field required; master's degree preferred.
- 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.
- 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.
- Due to ITAR regulations, applicants must be U.S. citizens, lawful permanent residents (Green Card holders), or protected individuals as defined by 8 U.S.C. 1324b(a)(3).
What you can look forward to- Work Culture: Our culture is characterized by openness, transparency, and enthusiasm.
- Inclusive Workplace: Join a company committed to equity, diversity, and inclusion, and belonging.
- Comprehensive Benefits: Health insurance (medical, dental, vision), company provided STD, LTD and Life insurance, 401(k) plan with generous matching contributions, FSA and HSA options. Generous PTO and paid holidays for a healthy work-life balance.
- Compensation: 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.
- Location: This role is based at our Shrewsbury, MA office. The role will work with the team onsite.
- Travel: This position involves less than 20% travel.
