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Senior Machinist

gpac
Darien, CT Full Time
POSTED ON 4/18/2026
AVAILABLE BEFORE 5/17/2026
We're looking for a Senior Machinist!

The Senior Machinist will independently perform machining, fabrication, assembly, and testing tasks to support new product development and production. This role requires interpreting engineering drawings, planning machining operations, and ensuring high-quality output. The ideal candidate must possess strong verbal and written communication skills in English, maintain a safe and organized work environment, and interact with the company's ERP system for job tracking.

Responsibilities

Prototyping & Product Development:

  • Collaborate with Engineering to develop prototypes using various manufacturing methods and materials.
  • Fabricate components, assemble parts, and test completed units.
  • Design and construct jigs and fixtures.
  • Assist in product design, testing, and troubleshooting.
  • Adapt quickly to changing project demands.

Production Support

  • Manufacture low- and high-volume parts.
  • Modify existing components as needed.
  • Fabricate and maintain jigs and fixtures for production.

Machine Operations (Including But Not Limited To)

  • Operate CNC and manual lathes and milling machines (milling experience is essential).
  • Use grinders, sanders, and welding equipment (TIG, MIG, arc).
  • Utilize 3D printing for prototyping.
  • Program CNC machines using models, drawings, or sketches.
  • Troubleshoot, optimize, and modify CNC programs to enhance efficiency and cost-effectiveness.
  • Operate additional machines while CNC equipment is running.

Measurement & Quality Control

  • Utilize precision measurement tools including calipers, micrometers, protractors, scales, and shadow graphs.
  • Ensure all work meets strict tolerances and quality standards.

Additional Responsibilities

  • Maintain a clean and safe work environment.
  • Perform routine maintenance on machines and tools.
  • Execute additional tasks as required.
  • Adapt to evolving duties and responsibilities as needed.

Qualifications

  • Advanced machining skills required.
  • 2 years of experience setting up and operating 3-axis CNC milling machines.
  • 2 years of experience with manual mills and lathes.
  • Experience generating and optimizing toolpaths and G-code using CAM software (Mastercam preferred).
  • Ability to maintain tolerances within 0.003" for manual machining operations.
  • NIMS (or equivalent) certifications preferred.
  • Experience with soldering, brazing, and welding (TIG, MIG, arc).
  • Electro-mechanical assembly experience (wiring and plumbing).
  • Proficiency in CAD/CAM software and business applications (ERP systems, email, job tracking).
  • Strong understanding of engineering drawings and GD&T.
  • Ability to multitask in a fast-paced environment.

Education & Experience

  • Associate's degree in a technical field (Mechanical, Electrical, or related discipline) or equivalent.
  • 5 years of experience in a similar machining role, or NIMS certification plus 2 years of machining experience.
  • 10 years of machining/model-making experience preferred.

Benefits

  • Competitive compensation and benefits package.
  • Paid holidays, PTO, and sick leave.
  • Health, dental, and vision insurance.
  • Long-term disability and life insurance.
  • 401(k) plan with company contributions.

Join our team and contribute to the development of innovative products in a collaborative and professional environment - apply for more details!

All qualified applicants will receive consideration without regard to race, age, color, sex (including pregnancy), religion, national origin, disability, sexual orientation, gender identity, marital status, military status, genetic information, or any other status protected by applicable laws or regulations.

GPAC (Growing People and Companies) is an award-winning search firm specializing in placing quality professionals within multiple industries across the United States since 1990. We are extremely competitive, client-focused and realize that our value is in our ability to deliver the right solutions at the right time.

Salary : $35 - $42

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