Software Developer

Software Developer (Back-End) role at AON3D – apply now. 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 We’re looking for a back‑end expert who’ll improve the server, database, and DevOps of Basis™—AON3D’s SaaS application that manages, visualizes, and optimizes 3D print jobs and then performs digital QA on the resulting parts using the sensor data from our Hylo™ 3D printers. Hylo is complex: we wrap a high‑precision linear motion system around a high‑temp oven that builds parts out of exotic plastics for manufacturers’ demanding applications that require light weight, chemical resistance, and/or metal‑like strength. We’re building the future of manufacturing, one layer at a time. But to deliver that future, we need to add more brainpower to the small team that builds the software for making it easier to print, optimize, and QA high‑performance parts on Hylo printers. What You Will Do Receive, transform, and store sensor data streams from our printer fleet. Assist with automated print fault detection, 3D visualizations of part strength, and timelapse videos from our printers’ camera sensors. Extend our Rust API server to support new features for our React/TS/WebGL client. Extend the Python “agent” app running on every Hylo printer that sends data to Basis. Defend our customers’ machines and data from threats ranging from clumsy users to highly‑motivated nation‑state actors. Design and implement systems for resilience and manageability, including real‑time monitoring of our cloud applications, high‑volume log processing and analysis, performance optimization, etc. Extend and optimize our Postgres database (with up/down migrations). Ensure adequate test automation for all of the above. What We Are Looking For You love programming, are good at it, and want to get even better. 5+ years professional experience in back‑end development, ideally across multiple platforms and frameworks. 3+ years experience building, deploying, and troubleshooting distributed cloud apps on AWS and/or Azure (ideally both). 2+ years professional Python experience. Deep experience with Docker, Kubernetes, Terraform, and/or other infrastructure‑as‑code platforms. Strong production troubleshooting and log analysis skills – diagnosing and fixing issues in production without SSH or IDE debuggers. Experience with Linux shell scripting, command‑line tools, Linux FHS, and configuration for infrastructure components like nginx. Strong SQL experience, ideally on Postgres; comfortable writing bare SQL without ORMs. Some Rust experience is preferred; if none, eager to learn quickly. Experience building B2B SaaS software, ideally for enterprise customers. Passion for productivity – creating tools that help you and colleagues go faster without sacrificing quality. Long‑term experience (2+ years) in the same codebase, internalizing maintainable code importance. Flexible and pragmatic without being sloppy; able to choose right balance of productivity vs. quality. Experience at, and enthusiasm for, fast‑moving startups. Low‑ego, collaborative team‑player. Excellent written and verbal communication in French and English, per Quebec's Official Languages Act. Preferred: Love 3D printing, printer at home, or extensive 3D printing experience. Embedded systems programming (debugging firmware is helpful). Sufficient front‑end knowledge to debug full‑stack problems. Experience building computer‑controlled physical equipment (commercial ovens, robots, MRI machines, kiosks). Solid communication with customers to resolve complex issues. Location and Work Model Location: Montreal. Work model: Hybrid. 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 parts of the hiring process to promote fair, consistent, and objective evaluation. Certain initial screening steps may be automated to 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. Seniority Level Mid‑Senior level Employment Type Full‑time Job Function Engineering and Information Technology Referrals increase your chances of interviewing at AON3D by 2x. #J-18808-Ljbffr