Senior CNC Machinist

ZEISS Group•Chesterfield, MO

18h•Onsite

About The Position

ZEISS is a company with a long history, over 179 years, and is a pioneer in science, adapting to changing environments with cutting-edge technologies. They focus on innovation and technology for a sustainable future and solutions for global change. ZEISS operates in diverse segments including Industrial Quality & Research, Medical Technology, Consumer Markets, and Semiconductor Manufacturing Technology. They are a global company with over 40,000 employees worldwide, and over 4,000 in the US and Canada. This role is for an experienced Senior CNC Machinist with leadership or management experience and a strong background in CNC turning and milling. The ideal candidate will have extensive CNC machining expertise, experience in a manufacturing environment with a Lean mindset, and proven capability in GD&T interpretation, CAD/CAM workflows, and machine setup. This position will involve mentoring junior machinists, driving process improvements, and contributing to production planning and quality initiatives.

Requirements

High School Diploma or GED
8+ years of CNC machining experience (turning and milling), with 3+ years in a leadership or management role.
1–3 years of experience interpreting and applying GD&T on engineering drawings.
1–3 years of experience setting up CNC turning and milling machines (setup, offsets, zeroing, probes/tools).
5+ years of hands-on CAD/CAM software experience

Nice To Haves

Associate degree or certificate from a community college or technical school (2-year programs) in CNC technology, manufacturing technology, or precision machining

Responsibilities

Lead and mentor CNC machining team members; plan, assign, and monitor daily workloads.
Set up, program, calibrate, and operate CNC turning and milling centers; optimize cycle times and part quality.
Interpret and apply GD&T per engineering drawings; verify tolerances and document inspection results.
Collaborate with design, process, and quality teams to translate CAD models into manufacturable parts.
Develop and optimize CNC programs using CAD/CAM software; support fixture design and tooling selection.
Drive Lean manufacturing initiatives: standard work, 5S, continuous improvement, and waste reduction.
Lead root cause analysis for dimensional issues and implement corrective actions.
Mentor junior machinists on best practices, safety standards, and machine maintenance.
Assist in qualification of new equipment, tooling, and CAM workflows; participate in capital equipment justifications.
Ensure compliance with all safety, quality, and environmental requirements.
Other duties as assigned by supervisor