Senior Mechanical Design Engineer – Precision Automation

Resonetics; Nashua (NH); On-site; USD 65,000 - 102,000; Full time

Job summary

Resonetics in Nashua, NH is seeking a Mechanical Design Engineer to lead projects for precision equipment and laser micromachining systems. You will design mechanical platforms, assemblies, and tooling with SolidWorks, ensure manufacturability, and collaborate with electrical, software, and manufacturing teams.

The role requires 5+ years of experience in precision mechanical design, strong GD&T and tolerance analysis skills, and a track record of delivering high-quality, repeatable results.

Qualifications

• B.S. in Mechanical Engineering or related field.
• 5+ years experience in mechanical design for precision equipment, automation, or capital machinery.
• Proficiency with SolidWorks or 3D modeling.
• Excellent problem-solving and communication skills.
• Ability to work independently and in a team.
• Ability to create precise mechanical drawings and documentation.
• Proficiency in geometric dimensioning and tolerancing.

Responsibilities

• Create detailed Mechanical designs, assemblies, and drawings using SolidWorks.
• Perform tolerance analysis, material selection, and manufacturability assessments.
• Architect mechanical platforms for laser micromachining (stages, gantries, mounts, enclosures, thermal management).
• Select and integrate lasers, optics, scanners, beam delivery, machine vision, and motion components.
• Design for precision, stability, and repeatability (micron-level tolerances; vibration and thermal drift).
• Coordinate with electrical, software, and manufacturing teams for integration.
• Identify opportunities for cost reduction, reliability improvement, and design optimization.
• Prepare technical documentation, BOMs, and ensure ISO/ASME/NFPA compliance.
• Collaborate with controls engineers on motion profiles, PLC/HMI integration, and safety interlocks.
• Interface with suppliers and manufacturing on cost, lead-time, and quality.
• Design for manufacturability and serviceability; oversee prototype builds.
• Project manage design projects and mentor junior engineers.

Skills

Mechanical design

SolidWorks

GD&T

Tolerance analysis

Team collaboration

Education

B.S. in Mechanical Engineering

Tools

SolidWorks

3D CAD

MS Office

Job description

Resonetics in Nashua, NH is seeking a Mechanical Design Engineer to lead projects for precision equipment and laser micromachining systems. You will design mechanical platforms, assemblies, and tooling with SolidWorks, ensure manufacturability, and collaborate with electrical, software, and manufacturing teams.

The role requires 5+ years of experience in precision mechanical design, strong GD&T and tolerance analysis skills, and a track record of delivering high-quality, repeatable results.