Senior Mechanical Engineer – Thermal/Structural Analysis

About Aalo Atomics

Aalo Atomics is pioneering a new era in clean energy with factory-fabricated microreactors designed to deliver affordable, scalable, and reliable nuclear power. Our mission is to make nuclear energy globally accessible, starting with the Aalo-1, a 10 MWe reactor leveraging cutting-edge safety, modularity, and efficiency. Based in Austin, TX, we’re rapidly growing as we work to deploy the world’s first fleet of advanced microreactors. Join us and help revolutionize energy for a sustainable future.

Position Overview

We are seeking a Senior Engineer with expertise in Structural and Stress Analysis to join our dynamic team. This role involves performing mechanical analyses of reactor components, ensuring structural integrity under various operating conditions, and contributing to the design of our innovative reactor systems.

What you'll do

• The

  Senior Mechanical Engineer – Thermal/Structural Analysis

  will lead advanced analyses for reactor systems, focusing on

  FEA, CFD, and ASME Section III

  compliance. 

  
  

  This role ensures mechanical integrity, structural stability, adequate performance, and design safety across key reactor components. 

Responsibilities

• Lead detailed

  structural analysis

  and identify failure modes of reactor components and systems (stress, fatigue, creep, seismic, and coupled thermal- and fluid-structural behavior). 

• Develop and validate

  FEA and CFD models

  to support design, performance, and safety decisions. 

• Conduct

  ASME Section III

  mechanical design and pressure-boundary analyses. 

• Collaborate with design, manufacturing, and licensing teams to optimize designs for

  performance, safety, manufacturability, and cost

  . 

• Support

  test plan development

  , data analysis, and design verification. 

• Mentor junior engineers and contribute to developing internal analysis standards. 

• Document and communicate analytical results for

  regulatory/licensing submissions

  and internal records. 

• Support verification and validation (V&V) efforts in accordance with software quality

Qualifications

• B.S. or M.S. in

  Mechanical, Structural, or Nuclear Engineering

  . 

• 10+years

  experience in structural and thermal analysis of complex systems (nuclear, aerospace, or similar). 

• Expertise with

  FEA tools

  (ANSYS, Nastran, Abaqus 

• Strong knowledge of

  ASME Section III

  and related nuclear design codes. 

• Understanding of

  materials behavior

  in high-temperature and radiation environments. 

• Proven communication and leadership skills; experience mentoring other engineers. 

Preferred Qualifications

• Experience with

  sodium-cooled or advanced reactor systems

  . 

• Familiarity with

  CFD tools

  (Fluent, STAR-CCM+, etc.) 

• Familiarity with

  NRC licensing processes

  and QA/QC standards. 

• Background in

  modular manufacturing or pressure-boundary component design

  . 

• Proficiency with

  Siemens NX / Simcenter 3D

  or similar integrated modeling environments

  .

Why Join Aalo Atomics?

• Be part of a mission-driven team aiming to redefine the future of clean energy.

• Work on cutting-edge technology with the potential for global impact.

• Competitive compensation package, including equity options.

• Opportunities for professional growth and advancement in a rapidly scaling company.