Junior Material Scientist

aon3d

Montréal, Quebec, Canada · Montréal · Canada

Posted Aug 11, 2026

Full-time
On-site
Research & Development

Apply on company site

Job description

About Us

AON3D is a venture capital-backed, Montréal-based additive manufacturing hardware, software, and materials company. Our solutions drive innovation for hundreds of businesses in 25+ countries worldwide, ranging from small businesses to multinational Fortune 500 corporations.

Our mission is to create intelligent tools that automate and optimize the additive manufacturing process, enabling anyone to manufacture high performance parts, in any material, with the touch of a button.

About The Role

Printing high temperature high performance polymers isn't magic, it's science turned into complex machinery and process control. In the R&D team we focus on understanding polymer behavior, quantifying it and then turning it into process control to guarantee strong and reliably printed parts for our customers

What You Will Do

Operate AON's high temperature industrial 3D printers to the point of becoming an expert
Understand and formalize key polymer extrusion behaviors like die swell, the effects of viscoelasticity on print quality, layer welding, crystallinity formation and many more.
Propose ways of quantifying driving phenomena experimentally, then running the experiments and finally working with the software side of our team to turn validated hypothesis into concrete software.
Devise test workflows, run tests, give feedback on what parts of our software platform needs to be improved
Once you prove your hypothesis for one materials, you will scale it to all materials we support.
You will help train technicians to scale experimentation across the material range we care about.

What We Are Looking For

Masters or PhD in Material Science, Polymers Science or Mechanical Engineering
Strong intuition on polymer behavior during processing through extrusion
Theoretical knowledge of polymer rheology, extrusion processing, and thermodynamics
Experience in 3D printing, preferably in FFF/FDM
Experience working with high temperature performance polymers (Ultem 9085, Ultem 1010, PEEK, PEKK-A, etc)
Scientific mindset and background – proven examples of using the scientific method to study a phenomenon
Experience building statistical models to predict physical or chemical phenomena, based on self-collected datasets
Initiative, driven and independence – you take ownership of your projects and have the experience to prove it
Open to learning cross-disciplinary skills. Our team is composed of polymer scientists, mechanical engineers and software engineers. We like working together to build useful tools that make our prints faster, stronger and more reliable.

Location and Work Model

Location: Montreal
Work model: On-site
Employment type: Full-time, Permanent

Start Your Journey With Us

Apply today and join a team that is shaping the future of additive manufacturing through intelligent, high performance technologies. Not quite the right role for you? Feel free to share this posting with someone in your network who may be a great fit.

AON3D uses AI supported tools within portions of the hiring process to promote fair, consistent, and objective evaluation. Certain initial screening steps may be automated to help identify qualified candidates. If your application is declined through an automated step, you may request a human review.

We are committed to fostering a workplace where everyone feels respected, supported, and able to contribute. If you require accommodation at any stage of the application process, please contact careers@aon3d.com.

Equal Opportunity Statement

AON3D is an equal opportunity employer. All qualified applicants are given consideration regardless of race, religion, colour, gender, sex, age, sexual orientation, gender identity, national origin, marital status, citizenship status, disability, veteran status, or any other protected class as provided in applicable employment laws.