CNC Programmer & Machinist - Multi-axis

Rennscot LLC; Woburn (MA); On-site; USD 60,000 - 100,000; Full time

Job summary

An innovative manufacturing company is looking for a skilled CNC Programmer & Machinist to enhance their machining processes. This role involves developing and optimizing high-precision components for various industries, including aerospace and defense. The ideal candidate will have extensive experience in multi-axis CNC programming, particularly with Open Mind hyperMILL, and will be responsible for creating automated machining processes and overseeing first article prove-outs. Join a forward-thinking team that values expertise and innovation in a dynamic industrial environment.

Benefits

Health, dental, and vision insurance

Long-term disability insurance

Annual vacation and personal days

Floating holidays

401(k) with company match

Electric Vehicle incentive program

Share Appreciation Rights (SARs) program

Qualifications

• 6+ years of CNC programming experience focusing on multi-axis milling.
• Hands-on experience with fixture design and advanced probing routines.
• Strong understanding of high-precision machining strategies.

Responsibilities

• Develop and optimize multi-axis CNC machining processes for complex parts.
• Conduct first article prove-outs and refine programs for efficiency.
• Collaborate with the quality team to troubleshoot machining challenges.

Skills

CNC Programming

Multi-axis Machining

Open Mind hyperMILL

GD&T

Troubleshooting

Fixture Design

CMM Inspection

Education

High School Diploma or equivalent

Technical Certification in CNC Machining

Tools

ProShop ERP

Fusion 360

ESPRIT

Siemens NX

Job description

Rennscot, an innovative manufacturing company, is seeking a highly skilled CNC Programmer & Machinist to join our team. This role is critical in developing and optimizing machining processes for complex, high-precision components in industries such as aerospace, defense, and space technologies. The ideal candidate will have extensive experience in multi-axis CNC programming, with a strong preference for expertise in Open Mind hyperMILL. This position requires a hands-on engineer who can develop robust, automated machining processes, oversee first article prove-outs, and ensure reliable, repeatable production. Candidates should be comfortable working with advanced probing routines, interpreting CMM data, and making process adjustments to improve quality and efficiency.

Description

Responsibilities

• Develop, optimize, and prove out multi-axis CNC machining processes for complex parts.
• Program CNC machines usingOpen Mind hyperMILL(experience with Fusion 360, ESPRIT, or Siemens NX is a plus).
• Design and fabricate custom workholding solutions, including fixtures for machining and inspection (e.g., CMM fixturing).
• Conduct first article prove-outs, verify setups, and refine programs for efficiency and reliability.
• Develop lights-out machining strategies, implementing automation to maximize unattended run time.
• Utilize advanced probing techniques to align components, particularly additive-manufactured parts, castings, and forgings.
• Interpret CMM inspection results, identify potential risks, and adjust machining strategies to ensure dimensional accuracy.
• Collaborate with the quality team to troubleshoot machining and inspection challenges.
• Create detailed setup documentation within ProShop ERP to support repeatable production.
• Provide guidance to entry-level programmers and operators when needed.
• Identify and implement continuous improvement initiatives to optimize processes, tooling, and cycle times.

Required Skills & Qualifications

• 6+ years of CNC programming experience, with an emphasis on multi-axis milling and mill-turn processes.
• Expertise in Open Mind hyperMILL (Fusion 360, ESPRIT, or Siemens NX experience is a plus).
• Strong understanding of GD&T, CNC tooling, and high-precision machining strategies.
• Experience developing lights-out machining and automated processes.
• Hands-on experience with fixture design and fabrication.
• Experience with advanced probing routines for part alignment and CMM inspection interpretation.
• Strong troubleshooting skills related to machine performance, part accuracy, and process optimization.
• Experience with high-performance materials such as titanium, Inconel, and other nickel-based alloys.
• High attention to detail and a results-driven mindset.

Preferred Skills & Qualifications

• Experience modifying post-processors for CAM software.
• Experience programming and working with automation systems, including robotic loading (UR, Fanuc, etc.).
• Familiarity with Haas, Okuma, GROB, and Mikron machines and their respective controls (OSP, Heidenhain, Haas).
• Background in post-machining of additively manufactured components.

Physical Demands

• Standing for extended periods
• Lifting/moving objects up to 50 lbs
• Working in an industrial environment requiring PPE (eye protection, hearing protection, etc.)

To conform to US Government export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a US citizen, lawful permanent resident of the US, protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the US Department of State. Learn more about the ITAR here: https://www.pmddtc.state.gov/ddtc_public/ddtc_public?id=ddtc_public_portal_itar_landing.

Company Benefits

• Company sponsored health, dental, and vision insurance
• Long-term disability insurance
• Annual vacation and personal days
• Floating holidays
• 401(k) with company match
• Electric Vehicle incentive program
• Share Appreciation Rights (SARs) program

Rennscot is an Equal Opportunity Employer; employment with Rennscot is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.