Senior Mechanical Design Engineer — End-to-End Automation

LettrLabs, Inc.; Los Angeles (CA); On-site; USD 150,000 - 180,000; Full time

Job summary

LettrLabs, Inc. in Los Angeles, CA is seeking a Senior Mechanical Design Engineer to own the mechanical design and development of complex electromechanical systems from concept through production.

You’ll translate requirements into robust, manufacturable designs and drive projects from prototyping to commissioning. This hands-on role collaborates with electrical, controls, manufacturing, and quality teams, plus external vendors, to build a next-generation production automation platform.

Qualifications

• Bachelor’s degree in Mechanical Engineering or related field.
• 5+ years of experience in mechanical design.
• Hands-on experience with motion systems and core components.
• DFM/DFA expertise.
• FEA and hand calculations experience.
• Experience working with vendors and suppliers.

Responsibilities

• Own entire mechanical systems from requirements through commissioning.
• Design precision motion systems including belts, pulleys, gears, bearings, shafts.
• Develop sheet metal components and assemblies with manufacturing tolerances.
• Apply DFM/DFA to drive cost, quality, and reliability.
• Perform analysis using hand calculations and FEA to validate designs.
• Build and test prototypes to iterate toward production-ready designs.
• Create and maintain detailed drawings, BOMs, and documentation.
• Mentor junior engineers and participate in design reviews.

Skills

5+ years mechanical design

motion systems components

sheet metal design

DFM/DFA

FEA/hand calculations

vendor collaboration

Education

Bachelor's degree in Mechanical Engineering

Tools

SolidWorks

NX

Job description

LettrLabs, Inc. in Los Angeles, CA is seeking a Senior Mechanical Design Engineer to own the mechanical design and development of complex electromechanical systems from concept through production.

You’ll translate requirements into robust, manufacturable designs and drive projects from prototyping to commissioning. This hands-on role collaborates with electrical, controls, manufacturing, and quality teams, plus external vendors, to build a next-generation production automation platform.