Machinist​/CNC Operator

Machinist / CNC Operator
Company:
Mission Critical Solutions (MCS) — Critical Equipment Division

Location:

Alum Bank, Pennsylvania

Reports To:

Manufacturing Manager / Lead Engineer

Mission Critical Solutions (MCS) is seeking a skilled Machinist / CNC Operator to support precision manufacturing of custom components for defense, infrastructure, and industrial applications. The ideal candidate has hands‑on experience in setup, operation, and basic programming of CNC lathes and mills, and is comfortable working from technical drawings and CAD/CAM files to produce tight‑tolerance parts in steel, aluminum, and specialty alloys.

This position plays a key role in producing parts that meet ISO 9001 and CMMC quality standards for MCS’s Critical Equipment product line, including TL-4 rated road barrier systems, mobile power platforms, and precision‑fabricated assemblies.

• Set up and operate CNC mills, lathes, and manual machines to produce precision parts
• per engineering drawings and specifications.
• Read and interpret blueprints, GD&T drawings, and process sheets to determine
• machining requirements.
• Create, edit, and optimize CNC programs using G-code and/or CAM software.
• Verify part dimensions using precision measuring instruments (micrometers, calipers, height gauges).
• Perform tool setup, offsets, and fixture alignment to ensure part accuracy and repeatability.
• Maintain machine cleanliness, lubrication, and safety standards.
• Collaborate with engineering and fabrication teams to resolve design or manufacturability challenges.
• Contribute to continuous improvement efforts in productivity, quality, and safety.
• Document production runs and inspection results in accordance with internal quality procedures.

• Proficiency with G-code, Fanuc, Haas, or Siemens controls.
• Experience using CREO or GIBBSCAM for toolpath creation preferred.
• Ability to make on-machine program edits and optimizations.

• 3- and 4-axis milling, turning, drilling, and tapping of steels, aluminum, and specialty materials.
• Understanding of feeds, speeds, and tooling selection.
• Have some experience with manual mills and lathes.

• Experience reading and working from 3D CAD models (STEP/IGES/Solid Works).
• Ability to provide feedback to engineering on model-to-part transition issues.

• Familiarity with ISO 9001 documentation and quality control practices.
• Use of CMM or optical inspection systems is a plus.

• 2+ years of CNC machining or equivalent technical experience.
• Trade school diploma or associate degree in Machining Technology, Manufacturing Engineering, or related field preferred.
• Demonstrated ability to read and interpret complex engineering drawings.
• Strong mechanical aptitude and attention to detail.
• Ability to work independently and as part of a cross‑functional team.
• Must meet eligibility requirements for work on defense‑related contracts (U.S. citizenship required).

• Competitive hourly wage based on experience.
• Overtime opportunities and performance incentives.
• Health, dental, and vision insurance.
• 401(k) plan with company match.
• Paid time off and holidays.
• Opportunities for training and advancement in advanced manufacturing and engineering support roles.