R&D CNC Prototyping Machinist
Job in
Sterling, Loudoun County, Virginia, 22170, USA
Listed on 2026-08-01
Listing for:
Torrey Holistics
Full Time
position Listed on 2026-08-01
Job specializations:
-
Manufacturing / Production
CNC Machinist, Manufacturing Engineer, Manufacturing & Industrial Operations
Job Description & How to Apply Below
A Day in This Role Morning starts with a quick sync alongside engineers reviewing a 3D model that needs to fly through a first-article cut. You select tooling, outline your setup strategy, and program a Haas VMC in Fusion 360 or Mastercam. By mid‑day, you’re dialing in work holding, running parts, and using indicators, micrometers, and height gauges to validate tolerances. Afternoon shifts to fixture tweaks, a fit check with the engineering team, notes on manufacturability, and documenting lessons learned so the next iteration moves even faster.
You close the day by organizing tooling, updating setup sheets, and queuing CAM for tomorrow’s run.
What You Will Own Rapid machining of prototypes and low‑volume builds for complex defense and dual‑use products.
Programming, setup, and operation of CNC mills and lathes, plus hands‑on use of manual equipment.
Working from CAD models, drawings, sketches, notes, and evolving verbal direction.
Early design feedback on manufacturability, tolerances, materials, setup strategy, tool access, fixturing, finishes, and cost/lead‑time.
Building, modifying, and repairing prototypes, fixtures, tooling, test articles, brackets, enclosures, panels, mounts, and assemblies.
Direct collaboration with engineers to translate design intent into high‑quality parts.
Inspection using calipers, micrometers, indicators, height gauges, thread gauges, and surface plates.
Verification that parts meet drawing specs, functional criteria, and assembly interfaces.
Support for prototype assembly, fit checks, test setups, and troubleshooting.
Clear documentation of setup notes, machining issues, lessons learned, and design change recommendations.
Shop organization, machine care, and safe work practices.
Continuous improvement across Kform’s prototyping, machining, and manufacturing systems.
How You Work You’re a hands‑on builder with strong fundamentals who can turn ambiguous requirements into precise parts. You move comfortably between:
CNC mills and lathes
Manual machining equipmentCAD models and drawingsCAM workflows
Inspection tools
Prototype assemblies
Fixtures and tooling
Engineering discussions
Production feedback loops
You care deeply about tolerances, finishes, setup sequencing, work holding, material behavior, cutting tools, and the difference between a design that looks good on-screen and one that runs repeatably.
Minimum Qualifications 3–5 years in CNC machining, manual machining, prototype fabrication, toolmaking, model making, or similar hands‑on manufacturing.
Fluency reading and interpreting drawings, dimensions, GD&T basics, notes, materials, and finishes.
Proven experience setting up and operating CNC milling machines.
Manual mill/lathe experience with saws, drill presses, grinders, and standard shop tools.
Working knowledge of aluminum, steel, stainless, plastics, and specialty materials.
Ability to inspect parts with standard metrology and apply basic quality practices.
Comfort operating from incomplete information and asking clarifying questions.
Strong mechanical aptitude with practical problem‑solving.
Commitment to safety in a fast‑moving prototyping environment.
Clear communicator willing to partner directly with engineers, technicians, and production.
Preferred Qualifications Background in prototype or R&D shops, defense/aerospace, robotics, machine shops, or advanced manufacturing.
CNC programming in Fusion 360, Mastercam, Solid Works CAM, HSMWorks, or similar.
Experience on both CNC mills and CNC lathes.
Track record machining tight‑tolerance components for complex assemblies.
Fixture design, soft jaws, custom work holding, and production tooling.
Support of low‑volume production, engineering builds, EVT/DVT, and production readiness.
GD&T, inspection records, first article inspection, or AS9100‑style systems.
Exposure to sheet metal,…
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