Senior Mechanical Engineer

Orbital’s hardware solutions solve the biggest challenges in data centers. Each of our products contains an advanced material discovered with our AI, giving it breakthrough real-world performance. We’re looking for ambitious thinkers and builders; those excited by the challenge of bridging AI and industry, chemistry and computation, discovery and deployment.

Our mission is to usher in an era where new, advanced materials are both discovered and engineered with AI and we’ll use this to build hardware that solve major global technology challenges.

Joining Orbital means working at the intersection of deep tech, applied science, and engineering innovation. We are a truly global organisation with sites in London (UK) San Francisco (CA), Princeton (NJ) & Calgary (Canada) building teams in ML Research and Product Development to Mechanical and Chemical Engineering, offering opportunities for talented individuals who want to shape the future of materials and their applications in high-impact industries.

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.

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