---
title: 'Additive Manufacturing Engineering Co-op - Spring 2027 at Rennscot MFG'
canonical: 'https://feeny.ai/job/additive-manufacturing-engineering-co-op-spring-2027-rennscot-mfg-woburn-15czqz2nz2ah'
type: 'job'
last_seen: '2026-10-16'
---

# Additive Manufacturing Engineering Co-op - Spring 2027 at Rennscot MFG

- **Company:** Rennscot MFG
- **Location:** Woburn
- **Compensation:** $19–$24/hr
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-10-16
- **Last confirmed live:** 2026-10-16
- **Apply:** https://jobs.ashbyhq.com/rennscotmfg/15bc28c3-adba-4071-a226-76e747603347

## Job description

## About This Role

Ready to shape the future of manufacturing? As an Additive Manufacturing Engineering Co-op at Rennscot MFG, you'll be at the forefront of additive manufacturing technology while building a comprehensive skill set across advanced manufacturing processes. This hands-on role puts you in the center of our additive manufacturing operations, where you'll work with cutting-edge 3D printing technologies, optimize build processes, and support post-processing workflows.

## What You'll Do

- Support Additive Manufacturing Operations
- Plan, setup, and execute additive manufacturing builds using industrial 3D printing systems
- Optimize build orientation, support structures, and process parameters for quality and efficiency
- Post-process additively manufactured parts including support removal, heat treatment, and media blasting
- Troubleshoot build failures and drive continuous improvement in additive processes
- Develop and refine manufacturing processes for new additive technologies and materials
- Engineer Better Processes
- Design and fabricate work holding fixturing for post processing additive components
- Contribute to process development, refininf build layouts, and support removal strategies for improved quality
- Participate in root cause analysis and corrective action for production issues
- Document manufacturing processes, build parameters, and setup procedures for repeatability
- General Support
- Support other departments (e.g., Quality, Subtractive Manufacturing, Assembly) as needed based on business demand
- Attend team meetings and contribute actively to discussions, bringing a fresh perspective and a willingness to learn
- Complete an end-of-term summary documenting key contributions, lessons learned, and recommended improvements for handoff to the engineering team.
- Support other projects and assignments as needed.

## What We're Looking For

- You've Got the Foundation
- Currently enrolled in an accredited Bachelor's Degree program in Mechanical Engineering, Manufacturing Engineering, Industrial Engineering, or a related field.
- Interest in additive manufacturing technologies and processes
- Familiarity with CAD software (Fusion 360, SolidWorks, or similar)
- Exposure to Build preparation software (Bambu Studio, Magics, 3DXpert, nTop, PreForm)
- Strong attention to detail and eagerness to learn
- Ability to work both independently and collaboratively
- Bonus Points If You Have
- Experience with additive manufacturing systems (FDM, SLA, SLS, metal printing, etc.)
- Knowledge of additive design principles and topology optimization
- Experience with additive post-processing techniques

## Who You Are - Skills & Abilities

- Future-focused – You're excited about how additive manufacturing is transforming industry
- Technically curious – You want to understand both the art and science of manufacturing
- Hands-on learner – You'd rather build and iterate than just read about it
- Process-minded – You see manufacturing as a system and love optimizing it
- Problem-solver – When a build fails or a process breaks down, you're energized to figure out why
- Detail-oriented – You know that parameters matter and documentation prevents problems
- Cross-functional – You're comfortable moving between additive, subtractive, and other manufacturing processes
- Improvement-driven – You're always asking "how can we make this better?"
- Adaptable – You thrive in a dynamic environment where priorities shift and technologies evolve
- Collaborative – You work well with machinists, engineers, and other team members to get results

Physical Requirements The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.

- Regularly stands, walks, and moves throughout the manufacturing facility for extended periods during machine setup, prove-out, and floor support activities.
- Frequently bends, stoops, kneels, and reaches to inspect equipment, tooling, work holding, and machined components at machine level.
- Occasionally lifts and carries materials, tooling, fixturing, and raw stock weighing up to 50 lbs; team lifts required for heavier loads.
- Regularly operates a computer workstation for extended periods for CNC programming, ERP documentation, and technical communication.
- Works in an active manufacturing environment subject to noise, vibration, metal chips, cutting fluids, and industrial equipment; required to wear personal protective equipment (PPE) at all times on the shop floor, including safety glasses, hearing protection, and steel-toed footwear.
- Manual dexterity required for operating CNC equipment, hand tools, and precision metrology instruments including calipers, micrometers, and indicators. May perform repetitive motions that may include wrists, hands and/or fingers.
- Visual acuity required to read technical drawings and GD&T callouts, inspect machined surfaces and features, and work with precision measurement tools.
- Communicating with others to exchange information

## 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](http://rennscotmfg.com).

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.

## EEO Statement

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.

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

## About Rennscot MFG

## Company Overview
- **One-liner**: Rennscot MFG is an AS9100-certified contract manufacturer specializing in metal 3D printing and advanced CNC machining for aerospace, defense, automotive, and medical customers.
- **Entity Type**: Private (bootstrapped; no disclosed funding rounds)
- **Headquarters**: Woburn, Bedfordshire, England, UK (additional U.S. office locations; operates two facilities totaling 80,000 sq. ft.)
- **Founded**: 2017
- **Founders**: Not publicly disclosed

## Core Business
- **Primary Industry**: Additive manufacturing / advanced machining (manufacturing services)
- **Target Customers**: Aerospace, defense, automotive, and medical OEMs; B2B, typically mid-to-large enterprises and government prime contractors
- **Mission / Purpose**: To provide cutting-edge solutions for the future of aviation, auto, and space exploration while simplifying supply chains and reducing risk for critical programs.

## Products & Services
- **Metal 3D Printing (Additive Manufacturing)**: Production and prototyping of complex metal parts using a fleet of 8 advanced 3D printers.
- **Advanced CNC Machining**: 5-axis and multi-axis machining with 15 CNC machines, including 9 fully automated systems.
- **Machining of AM Parts**: Post-processing and finishing for additively manufactured components.
- **Quality CMM Inspection**: In-house metrology and quality assurance.
- **Project Engineering**: Full-service design-for-manufacturing support.
- **Precision Assembly**: Light assembly and kitting services.

## Market Standing
- **Valuation / Market Cap**: Not publicly available (private company)
- **Key Metric**: Total operating space of 80,000 sq. ft. across two facilities; employs 26 staff (as of 2025).
- **Notable Investors / Partners**: None disclosed; appears self-funded.
- **Growth Signals**: Expanded from a 42,000 sq. ft. facility to 80,000 sq. ft. by 2025; holds AS9100 aerospace quality certification; serves "the world's most advanced industries and customers."

## Competitive Advantages
- **AS9100 Certification**: Qualifies Rennscot to manufacture for aerospace and defense primes.
- **Vertical Integration**: In-house design, printing, machining, inspection, and assembly under one roof.
- **Automation & Scale**: 9 fully automated CNC systems reduce lead time and improve repeatability.
- **Employee Equity Program**: Share Appreciation Rights offer ownership-like upside to all employees, rare for a private manufacturer.

## Strategic Focus
- **Current Priorities**: Deepening aerospace/defense business, expanding 3D printing capacity, and investing in automation for high-volume production.
- **Direction for Growth**: Targeting the future of aviation, space exploration, and advanced automotive applications; likely to scale headcount and facility footprint further.

## Why Work Here
- **Culture**: Described as "more than just a machine shop" — a collaborative, innovation-driven environment with a focus on solving complex manufacturing challenges.
- **Work Policy**: Hybrid workspace for some roles (combination of remote and on-site); many positions are in-office at the Woburn, UK location.
- **Benefits & Perks**:
  - Competitive medical, dental, and vision insurance
  - Life and long-term disability insurance
  - 401(k) with company match
  - Share Appreciation Rights (employee equity program)
  - Electric vehicle incentive + free EV charging
  - On-site gym
  - Maternity leave
- **Engineering Culture**: Engineers work across additive and subtractive processes, with opportunities to participate in the full product lifecycle from design to delivery.

## Sources
1. [rennscotmfg.com](https://www.rennscotmfg.com/) – Company overview, capabilities, and credentials
2. [rennscotmfg.com/careers](https://www.rennscotmfg.com/careers) – Benefits and equity program
3. [jobs.ashbyhq.com/rennscotmfg](https://jobs.ashbyhq.com/rennscotmfg) – Current open roles
4. [builtin.com](https://builtin.com/company/rennscot-mfg) – Employee count, hybrid policy, and office location

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