Civil structural engineer Jobs in San Jose, CA

About Us

At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. We're fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space. To achieve our mission, we're building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space.

Formed in 2023, the Antares team hails from SpaceX, The White House, MIT, Rigetti Computing, The Air Force, General Atomics, Relativity Space, Ursa Major, Ultra Safe Nuclear, and Los Alamos National Laboratory. Antares has raised over $39M in venture capital from top-tier investors and has over $4M in government funding.

About the Team

The Civil / Structural & Seismic Engineer works closely with our product teams-particularly those designing reactor enclosures, foundations, and site facilities. This role is key to ensuring our microreactors meet the natural phenomena hazards design criteria (e.g., seismic, wind, flood), plus site / facility engineering requirements and best practices. You'll translate civil / structural design solutions into engineering documentation and ensure alignment with regulatory expectations. Collaborating with product engineering, you'll help shape robust and compliant reactor infrastructure from concept through final design reviews.

Roles and Responsibilities :

• Evaluate and advise on structural loads, seismic design categories, and foundation layouts for transportable microreactors.
• Review and refine civil / structural drawings at conceptual, preliminary, and final design stages in accordance with regulatory specific specifications.
• Provide real-time feedback on load paths, anchorage, and site-specific solutions (e.g., desert vs. maritime environment).
• Own relevant inputs to the Documented Safety Analysis (DSA) for civil / architectural, structural integrity, earthquake / flood / wind hazard analysis.
• Respond to regulator inquiries (NRC, DOE) about civil / structural codes, site conditions, and anchorage methods.
• Prepare design deliverables demonstrating compliance with site hazards analyses and structural safety margins.
• Ensure that each stage of design review (30%, 60%, 90%) properly documents structural load cases, geotech data, and seismic analysis.
• Maintain consistent code interpretations across the organization.

Basic Qualifications :

Preferred Skills & Experience :

Additional Requirements :

Culture

At Antares, we like to specifically tie each role to our founding document's set of values-here are the top five cultural values we think you should believe at your core to be successful :

Self. We win together. There is nothing more precious than a high-performing team

ITAR Requirements

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.