Mechanical CAD Engineering Intern

Location: Ottawa, ON (on-site) Employment type: Co-op / Internship Duration: 4–8 months (depending on academic program) Hours: 35–40 hours per week Salary range: $18 – $25 CAD per hour, based on academic level and relevant experience About Q-Block Computing: Q-Block Computing builds quantum systems that operate in the real world. The company develops quantum timing, quantum-secure communications, and quantum computing platforms engineered for the performance, reliability, and environmental resilience that mission-critical applications demand — systems designed to be deployed, maintained, and trusted by operators who cannot afford ambiguity about whether the technology works. The long-term vision is deeper than any single platform. Q-Block is pursuing a mission to decode Nature's foundational model — to build instruments of sufficient precision and coherence that they become tools for understanding the physical universe at its most fundamental level. Commercialization and science reinforce each other by design. About this role: The Mechanical CAD Engineering Intern will work alongside Q-Block's engineering team on the mechanical and optomechanical design of quantum hardware — precision components and assemblies that have to perform under demanding environmental constraints, including ultra-high vacuum, thermal extremes, and other conditions where casual design choices do not survive. The role is hands-on CAD work with real consequences: the parts you model will be machined, assembled, tested, and iterated. The successful candidate is a motivated mechanical engineering student with solid CAD fundamentals, genuine curiosity about precision hardware, and the discipline to document work carefully as they go. This is a co-op designed to build depth — not to watch from the sidelines. Responsibilities Design and model precision mechanical and optomechanical components using SolidWorks, Autodesk Inventor, CATIA, or comparable CAD software. Develop detailed technical drawings and 3D assemblies for engineering projects across Q-Block's hardware programs. Support the design and prototyping of components intended for demanding operating environments, including UHV compatibility, thermal extremes, and related constraints. Work with exotic and precision-grade materials (titanium, Invar, stainless steels, aluminum alloys, ceramics, composites) with attention to manufacturability and structural integrity. Apply appropriate tolerancing, fits, and fastening practices for optics-grade and quantum hardware assemblies. Collaborate with engineers and scientists to translate requirements into clean, manufacturable mechanical solutions. Participate in design reviews and iterate on designs based on review feedback. Document design decisions, part specifications, and validation results. Assist with prototype build-up, test fits, and validation activities as needed. Contribute to a culture of craftsmanship, learning, and honest technical discussion. …