CNC Machine Operator

Rennscot MFG•Woburn, MA

20d•Onsite

About The Position

The CNC Machine Operator will be responsible for operating a variety of CNC machines to support production needs at Rennscot. This includes bandsaws, vertical mills, 5-axis mills, turning centers, and mill-turn machines. Operators will primarily run pre-proven processes, assist in setups, perform basic inspections, and contribute to shop upkeep and machine maintenance. Candidates will be evaluated for either a L1 or L2 role based on experience and skill level.

Requirements

Basic blueprint reading and an understanding of GD&T
Familiarity with hand metrology equipment and part inspection techniques
Strong mechanical aptitude and understanding of machining processes
Ability to follow written work instructions and interpret technical documentation

Nice To Haves

Experience building and offsetting tools, with the ability to make minor program adjustments
Experience with CNC machine brands (ex. Haas, Okuma, GROB, Mikron) and controllers (Okuma OSP, Heidenhain, Haas)
Hands-on experience with setup processes, including fixture installation and part locating
Understanding of various manufacturing processes beyond machining
Interest in automotive, aerospace, or space technology industries

Responsibilities

Operate CNC equipment across multiple platforms (mills, lathes, mill-turn, etc.)
Run pre-programmed processes while ensuring consistent part quality and process adherence
Aid in machine setups, including installing and locating fixturing and workpieces
Build and offset tools, and make minor adjustments as needed to maintain quality and efficiency
Perform in-process and final inspections using hand metrology equipment (calipers, micrometers, height gauges, etc.)
Deburr and clean finished components, and maintain a clean and organized work environment
Conduct basic machine maintenance and report equipment issues as needed
Follow safety protocols and use required PPE for handling raw materials, heavy parts, sharp components, and delicate assemblies
Participate in continuous improvement initiatives and collaborate with teammates to optimize workflows
Step into other support roles as needed based on company demands; assist with CNC machine operation, post-processing additively manufactured parts, mechanical assembly, or logistics tasks (e.g., driving components to/from outside processing vendors)