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Salary
$135k – $182k per year
Location
In office (Broomfield)
Seniority
Middle · 4+ years exp
Visa
Sponsors visas in United Kingdom; no register of this country names it
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 11, 2026. First seen by Alion on Nov 10, 2026. Quantinuum scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Quantinuum is a quantum computing company headquartered in Broomfield, Colorado, formed in 2021 by combining Honeywell Quantum Solutions with Cambridge Quantum. It builds trapped-ion quantum computers such as its H-series systems and develops software including a quantum chemistry platform and compiler tools. Honeywell is its majority owner, and it has major sites in Broomfield, Minnesota, Cambridge and London in the UK, and offices in Japan and Singapore. It hires manufacturing and semiconductor packaging engineers, compiler and software engineers, physicists and finance staff.

We are seeking a Mechanical Engineer in our Broomfield, CO location. This role is responsible for designing, building, and validating complex mechanical and opto-mechanical systems from concept through production release, with a strong focus on creative problem-solving, reliability, scalability, and robustness. You will also be responsible for research and development, new product introduction, prototype builds, system characterization, integration, documentation, and transfer to production. You will work cross functionally with design, manufacturing, quality, and supply chain teams to deliver robust mechanical components and assemblies that support both prototype development and production hardware.

All applicants for placement in safety-sensitive positions will be required to submit to a pre-employment drug test.

Key Responsibilities:

  • Design and develop mechanical components and assemblies from concept through production release, including prototype and production hardware.
  • Create and maintain 3D CAD models and 2D drawings using industry standard CAD tools, applying GD&T and best drafting practices.
  • Release and manage product data, drawings, and change orders in the PLM system in accordance with configuration management processes.
  • Perform basic to intermediate mechanical analyses (e.g., structural, thermal, tolerance, and trade studies) to support design decisions.
  • Collaborate with manufacturing, quality, and supply chain teams to ensure designs are manufacturable, reliable, and scalable.
  • Develop and maintain engineering documentation such as specifications, test plans, assembly procedures, and work instructions.
  • Participate in design reviews and contribute to technical risk identification and mitigation. Contribute to continuous improvement of engineering processes, tools, and standards.

YOU MUST HAVE:

  • Minimum bachelor’s degree
  • 4+ years of experience of mechanical engineering.
  • Minimum 4+ years of mechanical design experience, including CAD based modeling, electro-mechanical design and packaging, and stress and thermal analysis.
  • Due to Contractual requirements, must be a U.S. Person. defined as, U.S. citizen permanent

WE VALUE:

  • Master’s degree in mechanical engineering preferred
  • Working knowledge of materials, manufacturing processes, and mechanical assemblies
  • Familiarity with GD&T and engineering documentation standards
  • Ability to work effectively in cross functional, fast paced development environments.
  • Excellent written and verbal communication skills
  • Experience with Electro-mechanical systems or precision mechanical systems
  • Experience with Opto-mechanical systems
  • Experience with cryogenic systems
  • Proficiency with 3D CAD software such as Onshape
  • Experience with Ansys or similar tools for thermal and structural analysis, as well as design trade studies.
  • Experience with mechanical inspection and working with suppliers on complex mechanical procurement and subcontracts
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