Senior Precision Machinist

MANTECH seeks a motivated, career and customer-oriented Senior Precision Machinist to join our team in Livermore, CA. This is a part-time onsite position.

The Senior Precision Machinist will leverage their strong technical background and knowledge to manufacture centimeter-scale components with sub-micron precision in support of scientific research for Department of Energy programs.

Responsibilities include but are not limited to:

• Work independently and in coordination with target fabrication engineers to plan and execute precision machining of target components and perform in-process metrology.
• Set up, program, and operate conventional and precision diamond turning CNC lathes and mills using CAD/CAM software and SolidWorks 3D models.
• Perform in-process metrology, component inspections, and machining calculations using microscopy, interferometry, and optical coordinate metrology to verify specification
• Interpret engineering drawings, schematics, and informal sketches to identify dimensional specifications and design specialized fixtures for part manufacturing.
• Handle valuable and extremely fragile components daily in a fast-paced environment while strictly adhering to safe operating procedures and accurate data recording.
• Recognize, report, and assist with diagnosing machining or operational equipment issues while writing standard operating procedures and training team members.

Minimum Qualifications:

• Associate degree, vocational school degree, or Bachelor's degree in a technical discipline; an additional 6 years of experience might be considered for a degree.
• Demonstrated knowledge of precision machining tools and techniques, with the ability to interpret engineering drawings and fabrication procedures.
• Ability to learn, navigate, and operate computer software, CAD/CAM applications, metrology instrumentation, and microscopes.
• Attention to detail with the capability to identify non-conforming specifications, correct erroneous process steps, and suggest process enhancements.
• Experience working across technical teams to drive operational goals and manage complex technical documentation.

Preferred Qualifications:

• 3 + years of direct experience in a job with similar precision machining and fabrication responsibilities.
• Experience handling very small, delicate components and operating precision CNC diamond turning equipment.
• Experience operating process-control and data management computer software alongside advanced metrology instrumentation.
• Strong problem-solving and organizational skills with the ability to convey technical ideas efficiently and effectively.

Clearance Requirements:

• Ability to obtain and maintain a DOE-Q security clearance is required. U.S. Citizenship is required.

Physical Requirements:

• Must be able to operate, maneuver, and control heavy machinery and industrial equipment safely and effectively.
• Frequently positions self, bends, stoops, kneels, crouches, or crawls to perform equipment inspections, routine maintenance, and operational setups.
• Must be able to lift, push, pull, or carry tools, equipment, and heavy components weighing up to 50 lbs independently.
• Requires standing and walking for extended periods across industrial, shop floor, or outdoor project environments.
• Must possess fine motor skills, manual dexterity, and hand-eye-foot coordination to operate complex machine controls, joysticks, and levers.
• Must maintain close visual acuity, depth perception, and auditory awareness to monitor machine operations and hear equipment safety alarms in high-noise environments.
• Ability to wear all required Personal Protective Equipment (PPE) for extended periods, including steel-toe boots, hard hats, safety glasses, high-visibility vests, and ear protection.