Contact Us

1100 McKinley Road
St Marys, OH 45885
P: 419-394-7840
F: 419-394-4776

Forty-Three Million Wheels...

A leader in the manufacture of
cast aluminum automotive wheels.

Our products can be found on some
of the most popular vehicles today.

Our clients include some of the largest
auto manufacturers in the world.

Machining Process Engineer


Supports the design, development, testing, assessment, and continuous improvement of machinery, equipment, tooling, production processes and systems to meet or exceed objectives for safety, product quality, productivity, and cost efficiency.  Collaborates with production management, quality assurance, safety/environmental, product development, and other personnel to achieve customer satisfaction and Company objectives.


At least five (5) years of progressive and related manufacturing/process engineering experience is required--including high-volume CNC machining of cast aluminum parts, cutting simulations, innovative and cost-effective tooling/fixtures, and CNC programming.  Working knowledge of typical machining defects and ‘appearance standards as well as cost reduction initiatives is strongly preferred.  Related Associate degree, or equivalent required; related Bachelor degree is preferred.  Experience should include:

  • Root Cause Analysis, 5 Why’s, Design of Experiments (DOE), etc.
  • Gauging, inspection processes, blueprint reading, geometric dimensioning/tolerancing
  • Failure Mode & Effects Analysis (FMEA), Advanced Product Quality Planning (APQP), Production Part Approval Process (PPAP)
  • Well-developed computer knowledge/skills (e.g., MS Word, MS Excel, MS PowerPoint, MS Project, etc.).
Salary Positions

Environmental Policy

Kosei St. Marys Corporation will strive to be the best aluminum products company in the world in terms of environmental...

Corporate Social Responsibility

CSR is a commitment to contribute to sustainable economic development, working with employees, their families...