Remote Hands-On Prototype Engineer: Build & Validate

Let’s Prototype; Coral Gables, Northern (FL, KY); Hybrid; USD 65,000 - 95,000; Full time

Benefits offered by this job

Developing new products

Flexible work environment

Continuous learning

Growth into senior role

Direct impact on product development

Job summary

Let’s Prototype is seeking a motivated Prototype Engineer to build, test, and refine functional prototypes across medical devices, AI-enabled systems, and robotics. You will join electronics, firmware, software, and industrial design teams to turn CAD models and PCBs into working prototypes.

The role rewards curiosity, craftsmanship, initiative, and practical problem solving, with hands-on work and cross-disciplinary collaboration in a fast-paced environment.

Qualifications

• We’re looking for a builder: someone who enjoys making things work, learning new technologies, and finding practical solutions.

Responsibilities

• Assemble electronic prototypes from PCB to final product.
• Solder SMT and through-hole components.
• Assemble and integrate mechanical parts.
• Operate and maintain 3D printers.
• Post-process 3D-printed parts.
• Prepare, inspect, and test PCBs.
• Prototype testing, validation, and debugging.
• Organize and improve the prototyping lab.
• Manage tools, materials, and component inventory.
• Collaborate with firmware, electronics, and mechanical teams throughout product development.

Skills

SMT soldering

Through-hole soldering

3D printing

Workshop tools

Detail-oriented

Organized and methodical

Hands-on problem solving

Independent work with collaboration

Learning new technologies

Tools

Oscilloscopes

Laboratory equipment

Job description

Let’s Prototype is seeking a motivated Prototype Engineer to build, test, and refine functional prototypes across medical devices, AI-enabled systems, and robotics. You will join electronics, firmware, software, and industrial design teams to turn CAD models and PCBs into working prototypes.

The role rewards curiosity, craftsmanship, initiative, and practical problem solving, with hands-on work and cross-disciplinary collaboration in a fast-paced environment.