Senior, Civil Engineer

About Us

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

The Antares team hails from SpaceX the White House the Pentagon the Department of Energy MIT Rigetti Computing General Atomics Relativity Space Ursa Major and National Laboratories like Idaho Oak Ridge Los Alamos and Savannah River. Antares has raised over $600M in venture capital from top-tier investors and has hundreds of million-dollars on contract with the military services NASA and the Department of Energy.

About the Team

The Antares Reactor Deployments team is responsible for bringing the Antares R1 microreactor from the factory to operational service. Working across engineering manufacturing licensing construction supply chain and operations the team develops repeatable deployment solutions that enable rapid installation of factory-built microreactors at commercial defense and government sites.

As a Senior Civil Engineer you will lead the development of deployment sites that support safe efficient and cost-effective reactor installation. Youll evaluate prospective sites develop standardized civil infrastructure and work with multidisciplinary engineering teams to create modular site designs that can be deployed repeatedly with minimal site-specific customization. This role spans the full project lifecyclefrom customer site evaluation and conceptual planning through detailed design permitting construction commissioning and fleet deployment. Youll help establish the civil engineering standards and deployment methodologies that enable Antares to scale reactor deployments while maintaining the highest standards of safety quality and constructibility. Success in this role requires close collaboration with reactor structural mechanical electrical licensing manufacturing construction and operations teams to ensure each deployment site is optimized for rapid installation long-term operation and regulatory compliance.

Roles and Responsibilities:

• Lead civil engineering activities supporting deployment of the Antares R1 microreactor.

• Evaluate prospective deployment sites for geotechnical conditions grading drainage utilities transportation access constructibility environmental constraints and permitting requirements.

• Develop standardized site layouts that enable repeatable deployment across commercial defense and government applications.

• Design site grading drainage systems stormwater management access roads equipment pads underground utilities and civil infrastructure.

• Develop reactor site layouts including reactor silos balance-of-plant facilities electrical infrastructure security systems and operational support facilities.

• Coordinate geotechnical investigations and incorporate subsurface conditions into foundation and site designs.

• Work closely with structural engineers to develop foundations reinforced concrete structures retaining walls and below-grade facilities.

• Coordinate with reactor mechanical electrical controls manufacturing licensing and construction teams to optimize deployment designs.

• Support transportation planning heavy-haul logistics crane studies equipment installation and construction sequencing.

• Prepare engineering calculations specifications design drawings cost estimates and construction packages through conceptual preliminary and final design.

• Support permitting activities including grading permits stormwater permits environmental reviews utility coordination and site development approvals.

• Interface with customers EPC contractors government agencies and regulatory organizations throughout project execution.

• Support construction commissioning startup and lessons learned to continuously improve standardized deployment designs.

• Develop engineering standards design guides and best practices that improve deployment speed quality and repeatability.

Basic Qualifications:

• Bachelors degree in Civil Engineering Mechanical Engineering or a related field.

• 7 years of experience in civil engineering supporting industrial power generation energy defense or large infrastructure projects.

• Experience with site development including grading drainage utilities roadway design and civil infrastructure.

• Experience developing engineering drawings specifications and construction documents.

• Experience coordinating multidisciplinary engineering projects.

• Working knowledge of applicable civil engineering codes and industry standards.

• Excellent written and verbal communication skills.

• Ability to adapt to change in a fast-paced highly collaborative environment.

Preferred Skills & Experience:

• Professional Engineer (PE) license.

• Masters degree in Civil Engineering or related discipline.

• Experience supporting nuclear facilities military installations industrial plants or energy infrastructure.

• Experience with geotechnical engineering and foundation design.

• Experience supporting site permitting and environmental compliance.

• Experience working with EPC contractors during construction.

• Knowledge of transportation planning for oversized and heavy equipment.

• Experience developing modular or standardized facility designs.

• Familiarity with DOE NRC Department of War or Department of the Army engineering requirements.

• Experience working in highly regulated industries.

Additional Requirements:

• Ability to travel up to 30% to customer locations manufacturing facilities testing sites and deployment locations.

• Ability to work extended hours and weekends as necessary to support critical project milestones.

• Must be eligible to obtain and maintain a Top Secret security clearance.

• Ability to work at DOE Department of Defense Department of the Army and commercial nuclear facilities while complying with applicable security and safety requirements.

Location:

• We are located in Torrance CA in a 322000 square foot brand new facility featuring large open spaces for team collaboration R&D and production as well as easy access to the 405 105 and 110 freeways. Our facility is in the heart of Los Angeles vibrant emerging tech ecosystem alongside many other high growth startups and enterprises.

Culture

At Antares we like to specifically tie each role to our founding documents set of valueshere are the top five cultural values we think you should believe at your core to be successful:

• Think in Systems - Energy and Defense are complex ecosystems with numerous stakeholders with competing priorities conflicting policies perverse incentives and emergent and path-dependent properties. First principles thinking alone is insufficient. Think probabilistically and then take action. If you want to be certain then you are apt to be obsolete. Over-optimizing the components often degrades the system

• Obsess over the End User - The customer and end user are often not the same. We will never build globally competitive commercial products if we lose sight of our end users and their entire interaction with the product life cycle

• Be Unconstrained by Convention - Our only limits are the laws of physics. Many even experts will say what we are working on is impossible. They said the same about SpaceX reusing rockets. Generationally impactful companies by definition must accomplish the seemingly impossible. If it were easy it would have already been done. Never shy away from a solution because it has never been tried before and never choose to do something because thats how its always been done

• Go Where the Work Is - Never miss a chance to meet a customer user or stakeholder face to face even if that means hopping on a plane. If you cant make it find a teammate who can channel your intentions and go in your place. Deep work can be done from anywhere but we believe teams are built in person and aim to maximize our time together

• Operate in the Grey - Embrace nuance in pursuit of truth. Question every fundamental assumption

Equal Opportunity

Antares is an Equal Opportunity Employer. Employment decisions are based solely on merit competence and qualifications without regard to race color religion gender national origin/ethnicity veteran status disability status age sexual orientation gender identity marital status mental or physical disability or any other legally protected status.

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.

Required Experience:

IC