Precision Instrument Maker & CNC Programmer

Chronos Imaging manufactures CT tubes for medical diagnostic equipment. From our Aurora, IL facility, we’re seeking a Precision Instrument Maker & CNC Programmer who can turn complex prints into production-ready reality—safely, precisely, and consistently.

• Translate drawings, models, and engineering direction into sequenced machining operations that meet tight tolerances for medical device components.
• Execute setups and operate mills, lathes, shapers, and grinders to achieve repeatable, spec-compliant results.
• Program CNC equipment (including G-code) and leverage CAM software to streamline workflow.
• Verify quality at every step using micrometers, vernier calipers, and other precision metrology.
• Partner cross-functionally with engineering, supervisors, and production to refine processes and solve problems.

• Adhere to our Quality Management System and EHS expectations, including GMP, documentation, and safe work practices.
• Calculate dimensions/tolerances; lay out, measure, and mark stock for cutting.
• Align and secure fixtures, tooling, accessories, and materials prior to machining.
• Monitor feeds/speeds; ensure cooling and lubrication are appropriate.
• Operate equipment to confirm efficiency; diagnose and correct machine tool malfunctions.
• Maintain machines and keep them in reliable condition.
• Inspect finished parts and confirm adherence to specifications.
• Assemble and fit parts to make or repair machine tools.
• Perform additional tasks as assigned to support production goals.

• High school diploma or equivalent; machining certificate or technical degree preferred.
• Proven experience as a machinist (CNC and manual).
• Knowledge of materials, machining strategies, and shop math.
• Ability to interpret technical drawings and schematics.
• Attention to detail, strong problem-solving, and collaborative communication.

• GD&T
• G-code and CNC programming
• CNC tooling and production setups
• Equipment troubleshooting, installation, and repair
• Manual machining

• CNC Mill (3–4 axis VMC) and CNC Mill (5 axis VMC)
• CNC Lathe (2–4 axis) and CNC Lathe (5 axis)
• CAM software

• Regular standing/walking; frequent hands-on tool handling; reaching; talking/hearing.
• Occasional sitting; climbing/balancing; stooping/kneeling/crouching/crawling.
• Lift up to 25 lbs frequently and up to 100 lbs occasionally.
• Work near moving mechanical parts; frequent fumes/airborne particles; risk of electrical shock; occasional exposure to caustic/toxic chemicals and radiation.

Precision, reliability, and teamwork: bring your craft to a team that builds components clinicians depend on every day.