# Mechanical Energy Storage, BTM R&D

**Company:** [Fluidstack](https://hotfix.jobs/companies/fluidstack)
**Location:** Austin, TX, New York, NY, San Francisco, CA, Seattle, WA
**Role:** Hardware Engineering
**Salary:** $203k – $232k/yr
**Experience:** 7+ years
**Skills:** bess, thermal management, mechanical design, cfd, nfpa 855, fire suppression, lithium-ion
**Posted:** 2026-07-17

> Mechanical engineer owning BESS enclosure design, thermal management (validated by test), and behind-the-meter site integration for AI data center energy storage. Requires experience with power electronics or thermal-critical systems, safety codes like NFPA 855, vendor evaluation, and field deployment support.

## Job Description

## Responsibilities
- Engineer mechanical design for energy storage: BESS enclosures, thermal management, and site integration behind the meter.
- Own thermal design: cooling for containers and enclosures across climates, validated rather than vendored.
- Integrate storage mechanically into the campus: pads, clearances, fire separation, and service access engineered.
- Review vendor systems hard: what the datasheet claims versus what the fleet will live with.
- Support field deployment of designs.

## Requirements
- Mechanical engineering experience for BESS, power electronics, or thermal-critical enclosures.
- Engineered thermal management validated by test.
- Knowledge of safety codes shaping storage siting, including NFPA 855, and design to them.
- Evaluate vendor equipment beyond the brochure.
- Supported field deployment of designs.

## Nice-to-Haves
- Lithium-ion thermal behavior.
- CFD.
- Fire suppression interfaces.
- Utility-scale storage projects.

## Similar roles

- [Welding Engineer / AWS D1.1 CWI](https://hotfix.jobs/jobs/c9ed48dc-f8c8-4615-94da-d6c27866e0d3) - Fluidstack - Austin, TX - $203k – $232k/yr
- [Sr. Manufacturing Engineer](https://hotfix.jobs/jobs/b0a81d9d-2362-443a-b0d1-baa249ea36d3) - Fluidstack - Austin, TX - $203k – $232k/yr
- [Mechanical Engineer, Demand Management](https://hotfix.jobs/jobs/0f928ded-a375-4071-804c-dfbd9114cf41) - Fluidstack - Austin, TX - $203k – $232k/yr
- [Fire Protection Engineer, R&D](https://hotfix.jobs/jobs/882e20f4-8152-452d-8338-4ce64aecf843) - Fluidstack - Austin, TX - $203k – $232k/yr
- [Sr. Manufacturing Engineer](https://hotfix.jobs/jobs/471be184-b5cb-4503-abc5-b6dfdf664fd6) - Fluidstack - Austin, TX - $203k – $232k/yr

**Apply:** https://hotfix.jobs/jobs/e0723add-dc71-4e54-b70e-3f96f69743c5
**Canonical:** https://hotfix.jobs/jobs/e0723add-dc71-4e54-b70e-3f96f69743c5