Senior Turbomachinery Design Engineer

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.

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 Role:

As a Senior Turbo machinery Design Engineer, you will own the mechanical design of turbo machinery components and assemblies for Antares nuclear reactors. You will develop hardware from early layouts and architecture trades through detailed CAD, drawings, manufacturing, assembly, and testing. You will work closely with turbo machinery engineers, analysts, manufacturing engineers, and suppliers throughout development.

The ideal candidate has experience designing complex mechanical hardware and strong skills in CAD, engineering drawings, GD&T, materials, and manufacturing processes. You can make practical design tradeoffs that balance performance, reliability, manufacturability, cost, and schedule.

Roles & Responsibilities:

• Own the mechanical design and detailed definition of turbo machinery components and assemblies.

• Develop 3D CAD models, assemblies, and production drawings for rotating and stationary turbo machinery hardware.

• Support architecture and packaging trades through rapid iteration of 2D and 3D layouts.

• Evaluate materials, manufacturing processes, interfaces, assembly methods, and design concepts during early development.

• Work with aerodynamic, structural, rotor dynamics, thermal, manufacturing, and test engineers to develop integrated designs.

• Work directly with suppliers and internal manufacturing teams to resolve producibility, inspection, assembly, and nonconformance issues.

• Improve existing designs to reduce cost, lead time, part count, and manufacturing complexity.

• Incorporate lessons from manufacturing, assembly, and test into design updates.

• Support the design of test hardware, tooling, fixtures, and development rigs.

• Contribute to turbo machinery design practices and standards for CAD, drawings, producibility, and reliability.

Basic Qualifications:

• Bachelor’s degree in Mechanical, Aerospace, or a related engineering discipline.

• 5+ years of professional experience designing complex mechanical hardware and assemblies.

• Strong proficiency in 3D CAD and engineering drawing creation.

• Strong working knowledge of GD&T and ASME Y14.5.

• Ability to perform first-principles engineering calculations to support mechanical design decisions.

• Experience working directly with manufacturing engineers, machinists, suppliers, or inspectors to resolve hardware issues.

• Demonstrated ability to communicate technical information clearly.

Preferred

Skills & Experience:

• Master’s degree in Mechanical, Aerospace, or a related engineering discipline.

• Experience designing turbo machinery for gas turbines, turbochargers, rocket engine turbopumps, or similar high-performance applications.

• Expert proficiency with NX for 3D CAD design and drafting.

• Experience performing tolerance stack-up analysis and defining fits, clearances, and assembly interfaces for precision rotating machinery.

• Proficiency with ANSYS Mechanical.

• Knowledge of manufacturing…