Mechanical Engineer - Machine Design

Location: In person | Langmuir Systems | The Woodlands, TX

Date posted: January 8, 2026

Pay: From $85,000.00 per year

Langmuir Systems is a fast-growing company that specializes in the design and manufacture of consumer-grade and light-industrial CNC machinery. We don’t just design parts; we design the machines that empower thousands of small businesses and makers to transition from manual to CNC. For more information, visit:

We are seeking an experienced Mechanical Engineer with a deep obsession for machine design. This is not a “cubicle-only” role; we need a hands‑on engineer who can bridge the gap between abstract physics and a shipping product. The ideal candidate has a “maker” mindset, a mastery of CAD/FEA, and a practical understanding of how to build rigid, high‑precision motion systems without industrial‑scale budgets.

• System Architecture: Design and develop mechanical systems, frames, and motion components for CNC plasma, milling, and turning equipment.
• Precision Modeling: Create detailed 3D CAD models and 2D production drawings using Autodesk Inventor
  , prioritizing structural rigidity and ease of assembly.
• Rigidity & Vibration Analysis: Perform complex calculations including tolerance stacks, bearing life/load, and vibration damping to ensure machine precision under load.
• FEA Validation: Conduct Finite Element Analysis (FEA) to optimize the strength-to-weight ratio of moving components (gantries, carriages, spindles).
• DFM & Cost Engineering: Select materials and fasteners that balance high performance with cost‑effective manufacturing (castings, extrusions, and precision sheet metal).
• Prototyping & Testing: Lead physical prototype builds, stress‑testing designs to failure, and implementing iterative improvements based on real‑world data.
• Technical Documentation: Direct the creation of BOMs, assembly guides, and maintenance manuals that make complex machinery accessible to our customers.

• Bachelor of Science (B.S.) in Mechanical Engineering.
• Minimum 5 years of professional experience in mechanical design, specifically focused on machines or moving assemblies
  .
• The Builder Mindset: Hands‑on experience with CNC machining, welding, or manual fabrication. You must understand the “feel” of the equipment you design.
• CAD Mastery: Proficiency in Autodesk Inventor or a comparable high‑end 3D CAD package.
• Structural Literacy: Strong understanding of GD&T and how it applies to real‑world manufacturing tolerances and assembly fitment.
• Citizenship: Must be authorized to work in the U.S.; sponsorship is not available.

• Motion Control Expertise: Familiarity with stepper/servo drive systems, ball screws, and linear motion hardware.
• Product Lifecycle
  
  Experience:
  
  A proven track record of taking a complex mechanical system from a “back of the napkin” concept to a mass‑produced consumer product.
• Automation Knowledge: Experience with robotics or industrial automation integration.

• 401(k) & 401(k) matching
• Comprehensive Health, Dental, and Vision insurance
• Paid time off (PTO)
• Access to shop equipment