Mechanical Engineer I — Hands-On Reactor Systems

Hardware FYI; Austin (TX); Hybrid; USD 65,000 - 95,000; Full time

Benefits offered by this job

Health, Dental, Vision Insurance

Paid Time Off

Corporate Gym Membership

Job summary

Aalo Atomics is seeking a Mechanical Engineer I to support the design, build, testing, and fabrication of reactor systems and supporting infrastructure. The role offers exposure to full lifecycle hardware, from concept to commissioning, with collaboration across controls, manufacturing, and operations.

The work is hands-on and split between CAD, the shop floor, and the test lab. You should have solid mechanical design fundamentals and a track record of real-world electro‑mechanical builds.

Qualifications

• Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or related field.
• 1–3 years of hands-on engineering experience.
• Demonstrated experience designing and building physical hardware.
• Proficiency with 3D CAD platforms such as SolidWorks, NX, Creo, or similar.
• Working understanding of GD&T, tolerance stack-ups, and engineering drawing practice.
• Experience with mechanical fabrication, assembly, or electro‑mechanical testing.
• Comfortable wiring up instrumentation and reading basic schematics.
• Strong written and verbal communication skills.

Responsibilities

• Design mechanical components, mechanisms, and assemblies supporting advanced reactor technology, working under the direction of senior engineers.
• Develop 3D CAD models, engineering drawings, bills of materials, and interface documentation.
• Integrate actuators, drives, encoders, limit switches, and sensors into mechanical designs, and work with controls engineers on motion, interlock, and instrumentation requirements.
• Perform hand calculations and supporting structural, thermal, and mechanism analyses to size and justify designs.
• Build, instrument, and operate test rigs used to validate mechanisms, seals, and fluid system components.
• Work with machinists, welders, technicians, and vendors to get parts built and to keep designs practical and manufacturable.
• Develop tooling, fixtures, work instructions, and inspection plans for prototype and production hardware.
• Write and maintain test procedures, calculation notes, and design documentation.
• Travel occasionally to test sites, vendors, or the reactor installation.

Skills

3D CAD

Mechanical design

Wiring instrumentation

Strong communication

Ownership mindset

Education

Bachelor’s degree in Mechanical or Aerospace Engineering

Tools

SolidWorks

NX

Creo

Job description

Aalo Atomics is seeking a Mechanical Engineer I to support the design, build, testing, and fabrication of reactor systems and supporting infrastructure. The role offers exposure to full lifecycle hardware, from concept to commissioning, with collaboration across controls, manufacturing, and operations.

The work is hands-on and split between CAD, the shop floor, and the test lab. You should have solid mechanical design fundamentals and a track record of real-world electro‑mechanical builds.