Tool Room Machinist

Sonnax Transmission Company

As a part of the global industrial organization Marmon Holdings—which is backed by Berkshire Hathaway—you’ll be doing things that matter, leading at every level, and winning a better way. We’re committed to making a positive impact on the world, providing you with diverse learning and working opportunities, and fostering a culture where everyone’s empowered to be their best.

Responsible for determining the most efficient processes to manufacture precision components and tooling. Sets up and operates manual and CNC machines to produce high-quality parts that meet strict tolerances, working independently with minimal supervision.

Essential Functions & Responsibilities:

• Interpret engineering drawings, sketches, and sample parts to understand specifications, tolerances, and critical features.
• Develop and optimize machining processes for new and existing parts.
• Provide feedback on part and tooling design to improve manufacturability and efficiency.
• Machine components from prints, sketches, or verbal instructions to precise specifications.
• Apply strong understanding of datums and geometric dimensioning and tolerancing (GD&T).
• Set up and operate a variety of equipment including CNC mills (Hurco), CNC lathes (Haas), manual mills, lathes, grinders, and related support equipment.
• Program CNC machines using Mastercam or conversational programming at the machine.
• Select appropriate tooling, feeds, and speeds to ensure optimal performance and tool life.
• Troubleshoot machining issues and implement corrective actions to maintain quality and productivity.
• Train and support operators by providing clear instructions on setups, tooling, offsets, and inspection requirements.
• Perform routine equipment maintenance, including fluid checks and basic upkeep.
• Maintain a clean, organized, and safe work environment in accordance with company standards.
• Properly use and care for all company tools, equipment, and measuring instruments.
• Utilize precision measuring tools (micrometers, calipers, indicators, etc.) to verify part quality.
• Apply shop math skills, including decimal and fraction conversions, geometry, and trigonometry as needed.
• Communicate effectively with team members, engineers, and leadership.

Qualifications:

• High school diploma or GED required; technical or trade school training preferred.
• Minimum of 10 years of experience setting up and operating CNC and manual machining equipment in a toolroom or similar environment.
• Strong working knowledge of GD&T and blueprint reading.
• Experience with conversational CNC programming (e.g., Hurco) preferred.
• Proven ability to hold tight tolerances and produce precision components.
• Strong problem-solving and troubleshooting skills.
• Ability to work independently and manage multiple priorities.

Physical Requirements:

• Ability to lift up to 40 lbs.
• Must be able to stand for extended periods and perform repetitive motions.

Required to wear appropriate personal protective equipment (PPE), including safety footwear and eye protection

Pay Range:

32.40 - 39.60

We offer a comprehensive benefits package that may include medical, dental, vision, 401k matching, and more!

Following receipt of a conditional offer of employment, candidates will be required to complete additional job-related screening processes as permitted or required by applicable law.

We are an equal opportunity employer, and all applicants will be considered for employment without attention to their membership in any protected class. If you require any reasonable accommodation to complete your application or any part of the recruiting process, please email your request to careers@marmon.com, and please be sure to include the title and the location of the position for which you are applying.