Associate CNC Programming & Machining Engineer

Chromalloy•San Antonio, TX

1d•Onsite

About The Position

The Associate CNC Programming & Machining Engineer develops and optimizes CNC programs and machining processes for complex, precision-manufactured components. The role translates engineering designs into efficient shop-floor processes by creating CAM programs, refining G-code, selecting tooling, and supporting first-article setups. It is intended for a recent engineering graduate or early-career professional seeking to build CNC programming and manufacturing expertise. The position supports the manufacture and repair of aerospace components used across the global aviation industry. The position is on-site in San Antonio, Texas, in a manufacturing environment. Work involves exposure to machinery, noise, fumes, dust, and varying temperatures, along with frequent movement through production areas and hands-on troubleshooting around CNC machines and industrial systems. Required use of personal protective equipment and adherence to safety procedures.

Requirements

Bachelor’s degree in Mechanical Engineering, Manufacturing Engineering, or a related technical field, or an equivalent combination of hands-on precision machining and CNC programming experience.
Foundational knowledge of CNC machining principles, CAM programming, and toolpath development.
Working knowledge of Siemens NX CAM, Mastercam, or a comparable platform such as SolidWorks CAM or Fusion 360.
Basic ability to write, edit, and troubleshoot G-code and M-code.
Understanding of cutting tools, machining parameters, tool geometry, and workholding principles.
Ability to read and interpret technical drawings, engineering tolerances, and GD&T requirements.
Strong analytical and problem-solving skills, including the ability to investigate technical issues and develop practical solutions.
Clear communication skills and ability to collaborate effectively with engineering, machinists, and shop-floor operators.
Technical curiosity and willingness to learn new machining methods, software, and manufacturing processes.

Nice To Haves

Internship, co-op, or hands-on experience in a CNC machining or precision manufacturing environment.
Experience developing multi-axis CNC programs.
Familiarity with Siemens NX CAM or Mastercam.
Exposure to CNC program simulation, verification, or post-processing.
Experience supporting first-article setups, fixture development, or machining process improvements.
Familiarity with aerospace components, close-tolerance manufacturing, or regulated production environments.

Responsibilities

Develop, simulate, and verify multi-axis CNC toolpaths using Siemens NX, Mastercam, or comparable CAD/CAM software.
Write, edit, and optimize G-code and M-code to improve machining efficiency, accuracy, and repeatability.
Establish cutting parameters, including speeds, feeds, and toolpath strategies, based on part geometry, materials, and machining requirements.
Select appropriate cutting tools, workholding methods, and machining approaches for complex components.
Develop CNC fixture concepts that support safe, stable, and repeatable machining processes.
Partner with CNC machinists and operators to prove out new programs and support first-article setups.
Troubleshoot programming, setup, tolerance, and machining issues on the shop floor.
Interpret engineering drawings, GD&T requirements, and material specifications to ensure programs meet technical requirements.
Investigate machining errors and revise programs or processes to reduce scrap and rework.
Identify opportunities to improve cycle times, tool life, process capability, and overall machining performance.
Document CNC programs, setup requirements, and process changes to support consistent execution.