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Machinist Operator & Advanced Machinist - Aerospace & Defense

Three Sigma Manufacturing, INC.
Kent, WA Full Time
POSTED ON 9/26/2026
AVAILABLE BEFORE 1/24/2027

About Three Sigma Manufacturing, Inc.

Founded in 1983, Three Sigma Manufacturing, Inc. has specialized in manufacturing precision machined products for the Aerospace and Defense industries. As a privately owned company, we empower our employees and assist their career development in engineering and manufacturing.

Check Out Our Website: http://threesigma.net

Culture & Team Atmosphere

Manufacturing is an exciting and challenging field that offers financial and advancement opportunities for those who pursue it seriously.

At Three Sigma we are looking to expand our team and are offering training for multiple positions.

There are many roles and responsibilities at Three Sigma Manufacturing which include but are not limited to…

  • Entry Level Machinist
  • Machinist Operator
  • Advanced Machinist

Environment

In our 46,000 square foot Facility located in Kent, WA. We offer a collaborative work environment with clear specifications at every phase of production.

Our facility houses a variety of machinery including 3-, 4-, and 5- axis CNC Mills, CNC Lathes, CNC Grinder, Wire EDM, and Deep-Hole Drills. We also have several types of honing machines, a CNC tool grinder and sophisticated metrology.

Work Schedule

At this time, we are offering a variety of evening schedules.

  • 1st SHIFT – 7:00 a.m. to 3:30p.m. (MON – FRI)
  • 2nd SHIFT – 2:00 p.m. to Midnight (MON – THURS)
  • 3rd SHIFT – 10 p.m. to 7:30 a.m. (MON – THURS)

Employee Benefits

For more than 30 years, we have prided ourselves on our outstanding benefits, challenging work environment, flexible schedule, and endless opportunities for growth.

Our full-time employees qualify for our medical, dental, and vision benefits. Three Sigma Mfg., Inc. covers 100% of the insurance premium for our employees.

Other Benefits Include

  • Life Insurance
  • Disability Insurance
  • 401K 401K Matching (After 1 Year of Employment)
  • Paid Holidays
  • PTO

Three Sigma Manufacturing, Inc. – General Requirements

  • Hardcore Honesty
  • Strong Work Ethic
  • Punctual
  • Strong Attention to Detail, Accuracy and Safety
  • Excellent Hand-Eye Coordination
  • Positive Energy and Attitude
  • Interest in Working in a Team Environment

Three Sigma Manufacturing, Inc. – Work Conditions & Physical Requirements

  • Perform all work in accordance with established standards and safety procedures.
  • Follow Standard Industrial practices for working with machinery and materials.
  • Perform physical activities that require considerable use of arms, and legs and frequent movement of the whole body, such as climbing, lifting to 50 pounds, balancing and handling material.

Machine Operator

As a Machine Operator, you’ll demonstrate your expertise in operating precision metal cutting machines such as lathes, and mills (both CNC and Manual types.) You will also demonstrate the ability to read, review, and interpret CNC program blueprints and drawings for the specific requirements and specifications.

What matters most for this role:

  • Proficient Math Skills (Required)
  • 2 Year Machining and CNC Experience (Required)
  • Trade School and/or Apprenticeship Experience (Preferred)

Responsibilities of this role:

  • Inspect or measure finished workpieces to determine conformance to specifications.
  • Repair or replace machine parts, using hand tools, or notify manager when corrective action is required.
  • Brush or spray lubricating compounds on workpieces or turn valve handles and direct flow of coolant against tools and workpieces.
  • Capable (with some assistance) of performing uncomplicated machining processes; milling, cutting profiles, honing, drilling/reaming, precision boring, tapping holes.
  • Maintain stocks of machine parts and machining tools.
  • Operate and maintain lathe and milling machines.
  • Review part measurements, drawings, instructions, blueprints, or samples to ensure accurate production.
  • Set-up and operate CNC lathes, mills, and machining centers with minimal supervision.

Advanced Machinist

As an advanced machinist, you’ll demonstrate your proficiency in all aspects of CNC machining. You’ll possess excellent attention to details and proficiency in CAD Software. Advanced Machinists assist with general operations by monitoring production, quality control and ensuring safe work practices are maintained.

What matters most for this role:

  • Proficient Math Skills (Required)
  • Engineering or Science Degree (Preferred)
  • 3-5 Years Machining and CNC Experience (Required)
  • Trade School and/or Apprenticeship Experience (Preferred)
  • Advanced Computer Knowledge
  • Demonstrates proficient knowledge of engineering science and technology.

Responsibilities of this role:

  • Ability to use precision tools (e.g., calipers) to take accurate measurements.
  • Perform complex machining operations in support of job shop machining.
  • Analyze specification charts, samples, and drawings to gain a thorough understanding of requirements.
  • Developing a plan of action to manufacture parts according to specifications.
  • Understanding of material properties & characteristics
  • Working knowledge of various measuring devices: micrometers, pin gages, dial indicator, screw pitch gage, height gage, and comparator stand/gage.
  • Competent with algebra and trigonometry.
  • Ability to demonstrate basic operations to others with supervisor approval and train/mentor fellow machinist.
  • Work under limited oversight.
  • Ability to monitor and improve your economic output.

Job Type: Full-time

Pay: $24.00 - $35.00 per hour

Benefits:

  • 401(k)
  • 401(k) matching
  • Dental insurance
  • Flexible schedule
  • Health insurance
  • Life insurance
  • Paid time off
  • Vision insurance

Experience:

  • Manufacturing Engineering: 2 years (Required)
  • CNC lathe: 2 years (Required)
  • CNC Mill: 2 years (Preferred)

Shift availability:

  • Day Shift (Preferred)
  • Night Shift (Preferred)
  • Overnight Shift (Preferred)

Ability to Relocate:

  • Kent, WA 98032: Relocate before starting work (Required)

Work Location: In person

Salary : $24 - $35

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