Mechanical Engineer, Senior or Staff

Confirmed live in the last 24 hours

Antora Energy

Compensation

$129,000 - $210,000/year

San Jose, CA

On-site

Posted March 9, 2026

Job Description

Antora builds and deploys thermal energy storage to power always-on industrial operations and data centers with low-cost energy. Factory-built in California, Antora’s thermal batteries deliver reliable and cost-effective heat and power for industrial loads of any size. Antora is electrifying global industry while supporting U.S. manufacturing jobs, lowering costs for energy consumers, and enhancing the competitiveness of American industry.

We are growing our company with people who put team and mission first, value connection through laughter and joy, and build with humility and openness. We are committed to continue building a diverse, passionate, and creative team dedicated to a future where every industrial facility, everywhere on earth, is powered by abundant, clean, low-cost energy.

Position Summary

We are seeking a self-driven and passionate Senior or Staff Mechanical Engineer to join our Product Development Team. In this role, you will own the design, analysis, and validation of subsystems that make Antora’s thermal battery possible. Your work will directly accelerate the demonstration and deployment of a first-of-a-kind long-duration energy storage technology.

This is a highly collaborative, hands-on role where you’ll work across disciplines to scope, design, and refine mechanical systems from concept through prototyping, testing, and production. You’ll also help build the processes, standards, and culture that enable our team to deliver at scale

Roles & Responsibilities

Own subsystem design: Lead the architecture, analysis, detailed design, and testing of structural, thermal, and fluid components within Antora’s thermal battery.
Perform rigorous analysis: Apply calculations, finite element analysis (FEA), and trade studies to guide design decisions.
Drive validation & reliability: Lead prototyping, testing, and root cause analysis to ensure robust, reliable hardware.
Pursue cost-down: Identify and implement design and manufacturing approaches that reduce cost without sacrificing performance.
Collaborate cross-functionally: Define system requirements, lead design reviews, and integrate feedback across teams.
Establish best practices: Develop and maintain CAD standards, documentation, and engineering infrastructure.
Mentor & lead: Guide junior engineers; serve as technical lead.

Key Qualifications

Senior Engineer: Bachelor’s degree in Mechanical Engineering with 6+ years relevant industry experience, OR Master’s with 4+ years, OR PhD
Staff Engineer: Bachelor’s degree in Mechanical Engineering with 10+ years relevant industry experience, OR Master’s with 8+ years, OR PhD with 4+ years
Examples of relevant industry experience include power generation, aerospace, propulsion, or other industrial hardware products
Proven track record of taking complex mechanical systems from concept to deployed hardware.
Strong proficiency with CAD (SolidWorks or similar), PDM systems, and creating detailed drawings (GD&T, ASME Y14.5).
Deep experience with machined components for low- to mid-volume production; additional experience with sheet metal, castings, or composites is a plus.
Proficiency in structural and/or thermal analysis (FEA and hand calculations).
Familiarity with systems analysis and risk management tools such as FMEA.
Experience developing engineering processes, standards, and best practices.