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Orbital

Senior Mechanical Engineer – Modular Data Center

Orbital

Senior Mechanical Engineer designing and optimizing modular data centers focusing on AI cooling solutions. Leading technical and innovative aspects in the development and deployment of cutting-edge technology.

Posted 4/22/2026full-timeLondon • 🇬🇧 United KingdomSeniorWebsite

About the role

Key responsibilities & impact
  • A lead role within Orbital for Modular Data Center design, manufacturing and deployment. As a subject matter expert, you’ll interface with existing and potential clients configuring modular deployments to best suit their needs and suggest improvements.
  • Selection of coils, heat exchangers, chillers, compressors, pumps and other supporting components
  • Working with key stakeholders to recommend designs for performance, manufacturability, and ease of deployment
  • 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
  • Selection and performance analysis of cold plate systems
  • Review internal engineering work as well as external contractors such as CFD and FEA analysis
  • As the team continues to grow, this role will be responsible for the direction of intermediate engineers, drafters and designers from various disciplines that will be added to the MDC team.
  • Participate in the evaluation and selection of potential contract manufacturers
  • Assist in supporting internal and external manufacturing operations including integrating feedback from various stakeholders to continuously improve our modular products
  • Lead role in bringing new and innovative ways to design and manufacture products

Requirements

What you’ll need
  • Professional engineering designation with 7+ years of experience in the design, selection, and/or manufacturing of mechanical and electrical systems for data centers, HVAC, and large-scale cooling applications
  • Deep understanding of modular data center architecture — including mechanical/electrical subsystems, applicable codes, data center tiers, and best practices for efficiency and reliability
  • Expertise in chiller and refrigeration system selection, design, and optimization, with proficiency in thermodynamic analysis to maximize cooling performance and energy efficiency
  • Experience with simulation tools (e.g. CFD, FEA) for thermal and fluid dynamics, and hands-on lab experience designing and executing experiments to validate mechanical and cooling system performance
  • Ability to interpret experimental data and translate findings into actionable design improvements

Benefits

Comp & perks
  • Competitive salary and equity package - the ability to own part of Orbital as we grow
  • Flexible and generous paid time off
  • Excellent health, dental and vision insurance plan
  • Regular company off-sites to the USA and beyond

ATS Keywords

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Hard Skills & Tools
modular data center designmechanical systems designelectrical systems designHVAC systemschiller selectionrefrigeration system designthermodynamic analysisperformance analysiscold plate systemsmanufacturing operations
Soft Skills
leadershipstakeholder engagementcommunicationteam directionproblem-solvingcollaborationinnovationanalytical thinkinginterpersonal skillsfeedback integration
Certifications
professional engineering designation