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Salary
$54k – $78k per year
Location
In office (Broomfield)
Seniority
Intern
Employment
Internship

Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Oct 21, 2026. Quantinuum scores B on the Alion truth index.

Overview
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Headquartered in Broomfield, Colorado, Quantinuum is a full-stack quantum computing company formed through the merger of Honeywell Quantum Solutions and Cambridge Quantum. The firm develops trapped-ion quantum hardware alongside specialized software platforms, including quantum chemistry engines, compiler toolkits, and quantum-cybersecurity applications.

We are seeking a Mechanical Engineering Intern for our Broomfield, CO location. In this role, you will be responsible for designing, automating, integrating, characterizing, and testing advanced optical systems used in Quantinuum's quantum computers. This role supports research and development, new product introduction, prototype builds, optical characterization, system integration, documentation development, and production readiness activities. You will ensure that mechanical systems meet technical specifications, performance requirements, quality standards, and long-term operational reliability. The ideal candidate will have a background in opto-mechanic system design and integration, laser characterization, optical metrology, precision alignment, opto-mechanical assembly, and engineering problem solving.

Key Responsibilities:

  • Design, build and test passive and active opto-mechanical systems and components for quantum computers
  • Provide solutions capable of monitoring and automating optical and opto-mechanical systems
  • Collaborate with the larger optical design, opto-mechanical design, and integrated photonics teams and provide creative solutions for better performance
  • Perform characterization and mechanical analysis of components and sub-systems
  • Maintain detailed engineering documentation, test reports, and design records in accordance with production standards.
  • Collect, analyze, graph, interpret, and present experimental and production data to support engineering decisions and design improvements.
  • Perform other duties as assigned

YOU MUST HAVE:

  • Currently enrolled in a bachelor’s degree program
  • Graduating December 2027 or later
  • Due to Contractual requirements, must be a U.S. Person defined as a U.S. citizen, permanent resident or green card holder, or worker granted asylum or refugee status.
  • Due to national security requirements imposed by the U.S. Government, candidates for this position must not be a People's Republic of China national or Russian national unless the candidate is also a U.S. citizen.

WE VALUE:

  • Individuals pursuing Mechanical Engineering programs
  • Experience with Mechanical design programs such as Solid Works or Onshape
  • Experience with finite element analysis tools such as SolidWorks Simulation, Onshape Simulation, ANSYS, COMSOL, or similar
  • Analytical, troubleshooting, communication, presentation, and technical documentation skills, with the ability to manage multiple technical priorities in a fast-paced research and manufacturing environment.
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