Founding Member of Technical Staff - Thermal / HVAC / Mechanical Engineer

Role overview Lead thermal and HVAC design delivery and automation for data center and industrial projects, spanning air-cooled environments and liquid-cooling systems. You’ll deliver mechanical engineering for active projects while building a parametric engine to generate designs and documentation for future sites. The role combines hands-on engineering judgment with developing and shipping code using AI tools.

Responsibilities - Produce mechanical and HVAC packages covering cooling loads, airflow and CFD analysis, chilled-water and liquid-cooling systems, equipment sizing, P&IDs, 3D models, and construction sets. - Build a parametric engine that generates design deliverables from a shared set of project parameters. - Automate equipment selection, system sizing, thermal calculations, and design optimization. - Connect mechanical designs with electrical and structural systems so changes can propagate across disciplines. - Use AI coding agents to build and ship engineering automation workflows.

Requirements - Deep understanding of heat transfer, fluid dynamics, thermodynamics, and cooling-system trade-offs. - Hands-on experience building real physical systems and taking engineering problems from first principles to working solutions. - Ability to write and ship code with AI tools; a traditional software background is not required. - Strong engineering judgment and an ability to balance physical constraints with design requirements.

Nice to have Experience developing first-of-a-kind physical products or systems. A PE license is helpful but not required. Prior data center, construction, or architecture, engineering, and construction experience is not required.

Benefits and work setup Full-time, remote work from the US or Canada, excluding Quebec. The role includes founding-team equity, fully covered health plans with dependent coverage, and a base salary range of US$150,000–$250,000 or CA$215,000–$355,000.