Senior Mechanical Engineer

Orbital is an AI-first industrial company building hardware from the atoms up. Our goal is to lead an industrial renaissance to advance critical technologies and secure our planet for generations to come. We’re starting with critical hardware for AI data centers to make them more performant and sustainable. Every Orbital product is invented with our AI platform — uniting AI-automated hardware engineering with AI-designed material science to achieve breakthrough real-world performance. We have an ambitious mission and need excellent people in all our teams - AI research, operations, advanced materials, mechanical engineering, chemical engineering and manufacturing. Working at Orbital means working in tightly integrated, vertically integrated teams. We’re looking for people who have a love of physical technology, curiosity in AI and a desire to learn. Role Overview Orbital Materials is seeking a highly skilled and innovative Senior Mechanical Engineer to design and optimize advanced modular data centers, focusing on revolutionary two-phase direct-to-chip cooling applications leveraging Orbital's proprietary fluid discoveries, and developing dual-use chiller systems for simultaneous data center cooling and carbon capture. This role involves hands‑on participation in cutting‑edge research, including design and layout of mechanical systems for data center equipment and actively participating in and conducting lab experiments to verify the validity and performance of our modular data centers, novel cooling solutions and integrated carbon capture systems. Key Responsibilities Mechanical Systems Design for Modular Data Centers and Cooling Solutions Selection of coils, heat exchangers, chillers, compressors Working with key stakeholders to optimize designs for performance, manufacturability, and ease of deployment Design and Thermodynamic Analysis for Cold Plate Cooling Systems Assist in setup, running and analysis of results for CFD Assist in setup, running and analysis of results for FEA Design, Selection and Analysis of Refrigeration Systems Compare the impact on overall efficiency of the data center of different refrigerants for the ambient design condition Select compressors, expansion valves, and other supporting systems Coordination, Review and Approval of Technical Reports and Documentation Review internal engineering work as well as external contractors such as CFD and FEA analysis What We’re Looking For Professional engineering designation in Alberta, Canada or local regulatory body Experience in the design and equipment selection of mechanical systems used for data center cooling and/or HVAC systems Familiarity with various data center tiers and best practices for efficiency and reliability Continuous improvement mindset Experience in the design, selection, and optimization of chiller systems for large‑scale cooling applications Proficiency in conducting thermodynamic analysis to optimize cooling system performance, energy efficiency, and heat transfer. Experience with relevant simulation software (e.g., CFD, FEA) for thermal and fluid dynamics an asset Practical experience in designing and executing lab experiments to validate the performance of mechanical systems, cooling solutions, and integrated systems. Ability to interpret experimental data and translate findings into design improvements. Experience in the selection and design of refrigeration systems and components Why Join Orbital? Competitive salary commensurate with AI sector Flexible and generous paid time off Pension with company match Excellent health, dental and vision insurance plans Equity package - the ability to own part of Orbital Materials as we grow Regular company offsites The experience of working in a cutting‑edge organization dedicated to a better future Orbital is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. #J-18808-Ljbffr