Manufacturing Engineering Co-op - Spring 2026

About Rennscot MFG

Rennscot MFG, founded in 2017, started as a motorsports-focused shop in the aftermarket automotive industry. Now, they are a leading provider of advanced manufacturing services located in Woburn, MA. Rennscot MFG strives to be more than just a machine shop; they solve problems in innovative ways, using a suite of integrated services to fuel a passion for ideation. With a focus on diversifying into commercial and critical technology sectors, Rennscot MFG delivers cutting-edge technologies and unwavering commitment to quality. They offer a comprehensive range of services, including reverse engineering, metal & polymer additive manufacturing, and precision machining to support various industries’ needs. For more information, visit rennscotmfg.com.

Description

As a Subtractive Manufacturing Engineering Co-op, you’ll work hands-on in our CNC machining department. This role is ideal for a driven engineering student interested in real-world experience across CNC programming, fixture design, process optimization, and machine operation. You’ll support production, collaborate with skilled machinists and engineers, and play a key part in developing reliable, high-performance manufacturing processes.

Responsibilities

• Assist with the creation, simulation, and verification of CNC programs for 3-, 4-, and 5-axis milling and turning centers using hyperMILL, ESPIRIT & Fusion 360.

• Support the design and fabrication of workholding and fixturing to improve setup repeatability and minimize cycle time.

• Collaborate with machinists on setup, prove-out, and first-article validation.

• Contribute to the development and refinement of manufacturing processes, tool paths, and cut strategies for improved quality and efficiency.

• Participate in root cause analysis and corrective action for production issues.

• Operate CNC machinery as needed to support prototype and production work, including setup, inspection, and basic troubleshooting.

• Assist in documenting machining processes, tooling lists, and setup sheets to ensure repeatability.

• Support continuous improvement projects related to machine utilization, process capability, and workplace organization (5S).

• Support other departments (ex. Quality, Additive Manufacturing, Assembly) as needed based on business demand.

Required Skills & Qualifications

• Currently pursuing a Bachelor’s degree in Mechanical, Manufacturing, or Industrial Engineering (or a related field).

• Familiarity with CNC machining and subtractive manufacturing concepts.

• Exposure to CAM software (e.g., ESPIRIT, hyperMILL, Fusion 360, or similar).

• Exposure to CAD software (e.g., Fusion 360, Solidworks, or similar).

• Basic understanding of G-code and machine setup.

• Interest in process development and hands-on problem-solving.

• Strong attention to detail, eagerness to learn, and the ability to work both independently and collaboratively.

Preferred Skills & Qualifications

• Experience operating CNC machines (mills or lathes, focus on Heidenhain, Okuma, & Haas CNC controllers).

• Knowledge of GD&T and ability to interpret engineering drawings.

• Exposure to Lean Manufacturing or Six Sigma principles.

ITAR Requirement

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.

Rennscot MFG is an Equal Opportunity Employer; employment with Rennscot MFG 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.