Mechanical Design & Prototyping Engineer

About the Company

FLX Solutions, Inc. builds robotic systems that make inspection and maintenance faster, safer, and more repeatable, especially in tight, hard-to-reach spaces. Our flagship platform, the FLX BOT, is a modular, handheld, snake-like articulating robotic system designed to solve one of the toughest challenges in maintenance: reaching the "last meter" in complex environments. It is already in use with the U.S. Navy, U.S. Air Force, a major DoD prime, and shipbuilders, with expanding applications across industrial, transit, and construction sectors. We’re at the build-and-scale stage, moving from prototypes to paying customers in defense, maritime, and industrial markets.

About the Role

The Mechanical Design & Prototyping Engineer role sits at the intersection of technician and engineer, with a clear path to grow into a full design engineering role. You'll be hands-on in the lab every day, building and testing hardware alongside our Assembly team, keeping the 3D printers running, and managing parts inventory. You'll also perform real engineering work: designing jigs and fixtures in CAD, applying GD&T best practices, and generating drawings to ensure accurate and repeatable builds. This is a ground-floor opportunity as the FLX BOT platform transitions from pilot programs to full-scale production.

Responsibilities

• Assist with running the engineering lab, including day-to-day upkeep and equipment readiness
• Manage parts inventory for the lab and build area
• Contribute to and help refine the manufacturing process
• Execute and manage 3D printing for prototypes and production aids
• Build and assemble prototypes from drawings and BOMs
• Perform CAD work such as designing jigs, fixtures, and tooling
• Implement test processes — running tests, collecting data, and reporting results
• Apply GD&T (Geometric Dimensioning & Tolerancing) and generate manufacturing drawings
• Document designs and builds to support manufacture and assembly
• Collaborate with the Electrical and Assembly teams to keep builds moving

Requirements

• Bachelor's degree in mechanical engineering or a related field from an ABET-accredited institution
• 3+ years of experience in mechanical design, prototyping, or a related hands-on engineering/technician role
• Working proficiency in 3D CAD (SolidWorks preferred)
• Practical experience with 3D printing and rapid prototyping equipment
• Working knowledge of GD&T and the ability to generate clear manufacturing drawings
• Comfortable building and troubleshooting physical prototypes from drawings or BOMs
• Organized approach to documentation and parts/inventory tracking
• Must be a U.S. Citizen

Preferred Qualifications

• Experience working in a startup or small-team environment
• Experience supporting test processes such as running tests, collecting and reporting data
• Experience with project management tools like ClickUp
• Exposure to electrical/PCB integration into mechanical assemblies
• Exposure to embedded software or scripting (Python, C/C++) for test, data collection, or automation
• Ability to leverage modern AI tools to accelerate engineering development