Advanced CNC Programming Specialist, AS9100 Aerospace

Picture this: an aerospace customer sends a tighttolerance assembly with intricate surfaces and rigorous specs. You evaluate the CAD, choose tooling, design workholding, and lay down efficient Mastercam toolpaths for our 3-, 4-, and 5axis millsand potentially a turning operation. Firstarticle hits spec. Operators have crystalclear setup sheets. Cycle time drops on the next run. If that sounds like your kind of challenge, you’ll thrive at ProType Industries in Sterling, VA.

We’ve been a familyowned precision manufacturer since 1969, serving aerospace, defense, technology, electronics, marine, and industrial markets. With new leadership and an employeecentric mindset, we’re investing in people, training, and modern processes. Average tenure here: 17 years.

• Own programming from print/model to production: interpret drawings, specs, GD&T, and 3D models to build dependable CAM programs for mills (3/4/5axis) and CNC lathes (preferred).
• Program, edit, and optimize in Mastercam for accuracy, finish, and repeatability.
• Engineer machining strategiestool selection, speeds/feeds, operations sequencing, fixturing, and setup approach.
• Create complete documentation: setup sheets, tooling data, and stepbystep work instructions.
• Assist with machine setups and firstpiece proveouts; provide onthespot technical support to operators.
• Diagnose and resolve issues related to code, tooling, workholding, dimensional accuracy, surface finish, and machine performance.
• Continuously improve programs and processes to reduce cycle times, extend tool life, and raise yield and quality.
• Use SolidWorks and 3D data to plan, validate, and verify toolpaths.
• Inspect parts using micrometers, calipers, indicators, and gauges to confirm compliance.
• Collaborate with Engineering, Quality, Production, and the Machine Shop to enhance manufacturability and throughput.
• Maintain revisioncontrolled programs and setup documentation aligned with current engineering.
• Operate within AS9100 requirements, customer specifications, and internal work instructions; keep the work area clean and safe.
• Align programming priorities with the shop schedule and support broader ProType activities as needed.

• High school diploma or equivalent; machining/CNC programming or manufacturing technology training preferred.
• Must be at least 18 years old.
• Track record of programming CNC equipment in a precision metal manufacturing setting.
• Mastercam proficiency (or comparable CAM); strong experience with 3-, 4-, and/or 5axis milling; lathe programming preferred.
• Working knowledge of CNC mill and lathe setup/operation; handson machining background.
• Understanding of tooling, speeds/feeds, workholding/fixtures, operation sequencing, and machining processes.
• Manual machining experience is a plus.
• Ability to read technical drawings, blueprints, and 3D models; apply GD&T effectively.
• SolidWorks or similar 3D CAD proficiency.
• Metrology experience with micrometers, calipers, gauges, and indicators.
• Skilled at troubleshooting program, tooling, fixture, dimensional, finish, and machine performance issues.
• Capable of writing clear setup instructions and communicating technical details to operators and peers.
• Strong math/analysis, critical thinking, and meticulous attention to detail.
• Comfort managing multiple priorities in a fastpaced, deadlinedriven environment.
• Works independently while partnering effectively with the Shop, Engineering, Quality, and Production teams.
• Experience in aerospace/defense or AS9100certified environments preferred.
• Dependable attendance; ability to work assigned schedules and overtime when required.
• Physical demands: stand through full shifts and safely lift/move up to 75 lbs, with or without reasonable accommodation.

• Competitive compensation.
• Annual, fully funded continuingeducation training.
• Defined professional development and career growth plan.
• Employee recognition programs.
• Health, dental, vision, sick and vacation leave, onsite gym, and more.
• 401(k) with a generous employer match.
• A collaborative, entrepreneurial environment where your ideas shape the process.

• Proficiency: CNC Programming; Aerospace Manufacturing
• Equipment: CNC Mill (3–4 axis VMC)

If you’re a focused craftsperson who loves independent work, takes pride in excellence, and enjoys pushing quality and efficiency, this is where your skills will shine.