Senior Mechanical Engineering Tech I

Senior Mechanical Engineer

We 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.

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.

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.

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; 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; S. citizens, lawful permanent residents (Green Card holders), or protected individuals as defined by 8 U.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 is determined by factors including job-related skills, experience, and relevant education and training.

Location: This role is based at our Shrewsbury, MA office. Travel: This position involves less than 20% travel.

We design and manufacture world-class precision motion and automation solutions across our facilities in North America, Europe, and Asia. Our customers are pioneers in cutting edge industries and research institutions spanning photonics, semiconductors, aerospace, and life sciences. Innovation is at the core of our identity – we often create or build devices for application being realized for the very first time, driving advancements that shape entire markets. Our culture is characterized by openness, transparency, and enthusiasm, fueled by a shared curiosity to tackle emerging scientific and technological challenges. Contribute to innovative solutions that save lives, reduce emissions, and drive progress in key industries like energy, automotive, and safety technology.