Senior Mechanical Engineer, Humanoid Robotics

Persona AI, Inc.; Houston, Northern (TX, KY); Hybrid; USD 90,000 - 170,000; Full time

Benefits offered by this job

Competitive compensation

Performance-based bonus

Employer-covered medical benefits

Equity (early-stage)

Competitive PTO

Winter break (Dec 24–Jan 2)

Job summary

Persona AI, Inc. is seeking a Mechanical Engineer to lead the design of humanoid robots for demanding industrial environments. You will drive CAD modeling, prototyping, testing, and deployment from initial sketches to production on real job sites.

The role emphasizes hands-on development, collaboration with electrical/software, and a track record of shipping products. Strong manufacturing knowledge, GD&T, and multi-disciplinary teamwork are essential for success.

Qualifications

• Bachelor's, Master's, or PhD in Mechanical Engineering, Manufacturing, Robotics, Biomechatronics, Mechatronics, or related fields.
• 5+ years designing mechanical systems in consumer products, robotics, aerospace, medical, automotive, or similar fields.
• Proven track record shipping products to market at scale.
• Experience with high-volume mass manufacturing DFM: injection molding, sheet metal, stamping, casting, composites, CNC.
• Hands-on prototyping, manufacturing techniques, and material selection.
• Proficient CAD user with Onshape, SolidWorks, Catia, Creo, Fusion, etc.
• Strong fundamentals in mechanical engineering; analytical problem solving; FEA or hand calculations.
• Collaborative, detail-oriented, and able to work across electrical/software/controls teams.
• Keen tolerance analysis and GD&T understanding.
• Bonus: robotics/industrial design, precision mechanisms, and CAD surface geometry.

Responsibilities

• Create and refine mechanical designs for advanced humanoid robotics, including actuators and integrated systems.
• Own designs from sketches through CAD modeling, prototyping, manufacturing, testing, and deployment.
• Conduct simulations, structural analysis, and performance evaluations to optimize function.
• Generate CAD drawings, block diagrams, test plans, and assembly instructions.
• Interface with external manufacturers to optimize for manufacturing, testing, and assembly.
• Hands-on lab work to iterate designs into production systems.
• Collaborate with electrical, software, controls, UX/UI, and industrial design teams.
• Solve engineering challenges and push robotics technology boundaries.

Skills

Mechanical design

DFM (design for manufacturing)

Prototyping

Analytical skills

GD&T

Hands-on in lab

Cross-functional collaboration

Strong communication

Creative problem solving

Education

Bachelor's, Master's, or PhD in Mechanical Engineering

Tools

Onshape

SolidWorks

Catia

Creo

Fusion 360

Python

MATLAB

Job description

Persona AI, Inc. is seeking a Mechanical Engineer to lead the design of humanoid robots for demanding industrial environments. You will drive CAD modeling, prototyping, testing, and deployment from initial sketches to production on real job sites.

The role emphasizes hands-on development, collaboration with electrical/software, and a track record of shipping products. Strong manufacturing knowledge, GD&T, and multi-disciplinary teamwork are essential for success.