Founding Engineer - Thermal / HVAC / Mechanical

Aran Industries; United States; Remote; USD 150,000 - 250,000; Full time

Benefits offered by this job

Fully compensated health plans with a

Job summary

Aran Industries is seeking an engineer to own end-to-end thermal and HVAC design automation for data center and industrial projects. You’ll deliver real mechanical engineering on live projects while building a parametric engine that generates designs for future sites.

The role emphasizes physics, trade-offs, and ability to ship code using AI tools. Remote (US/Canada) with base salary range and equity opportunities.

Qualifications

• Deep understanding of heat transfer, fluid dynamics, and thermodynamics.
• Hands-on experience building real physical systems at leading tech firms.
• Ability to ship code using AI tools without a software background.
• Capable of solving engineering problems from first principles.

Responsibilities

• Deliver complete mechanical/HVAC packages for data center projects, including sizing and P&IDs.
• Create a parametric thermal/HVAC engine for all data center sites.
• Automate system sizing, equipment selection, and design optimization.
• Integrate mechanical designs with electrical and structural systems so changes propagate across disciplines.
• Develop workflows with AI coding agents to ship code.

Skills

Heat transfer

Fluid dynamics

Thermodynamics

Engineering problem solving

Tools

Claude Code

Job 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.

You don't need prior software experience. Our engineers who've never shipped software products are writing code with AI every day. What matters is that you understand the physics, the constraints, and the trade-offs - and that you build.

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.

You must

• 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.

You do not need to

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

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.