[Hiring] Founding Engineer - Thermal / HVAC / Mechanical @Aran Industries

Role Description

You own end-to-end thermal and HVAC design automation for data center and industrial projects — from air-cooled halls to liquid cooling. You'll deliver real mechanical engineering on live projects while building the parametric engine that generates those designs for every future site.

What you’ll achieve:

• Deliver complete mechanical/HVAC packages: cooling load calculations, airflow and CFD analysis, chilled-water and liquid-cooling architectures (direct-to-chip, immersion, rear-door, CDUs), equipment sizing, P&IDs, 3D models, and construction sets.
• Build a parametric thermal/HVAC engine that generates these deliverables from a single parameter template for any data center site.
• Automate system sizing, equipment selection, thermal calculations, and design optimization.
• Connect mechanical designs with electrical and structural systems so changes automatically propagate across disciplines.
• Use AI coding agents (Claude Code and similar) to build these workflows. You will ship code.

Qualifications

• Understand the physics deeply — heat transfer, fluid dynamics, thermodynamics, and cooling-system trade-offs.
• Have built real physical systems hands-on, ideally first-of-a-kind products at companies like Tesla, SpaceX, Joby, Anduril, Rivian, or similar environments.
• Be able to ship code with AI tools today, even without a traditional software background.
• Be capable of taking a difficult engineering problem from first principles to a working solution.
• Be someone your current employer would be upset to lose.

Requirements

• You do not need to hold a PE license (helpful, not required).
• You do not need to have a CS degree or identify as a software engineer.
• You do not need to have direct experience in data centers, construction, or AEC.
• Believe that AI should not replace engineering judgment. We don't.

Benefits

• Full-time | Remote (US or Canada, excluding Quebec) | US$150k–$250k or CA$215k–CA$355k base + founding-team equity.
• Fully compensated health plans with 100% dependent coverage.
• We hire across the experience spectrum. Proof that you build beats years on a resume.