Q

Quantinuum

Full-stack quantum hardware and software solutions

Advanced Mechanical Engineer

Full-Time
$116k - $145k/yr+ Equity opportunities
Mid
Bachelor's
Broomfield, CO, USA
In Person
Mechanical EngineeringDesign Engineering
No H1B Sponsorship
US Citizenship Required

About the job

Requirements
  • A minimum Bachelor's degree is required.
  • At least 4 years of mechanical engineering experience is required.
  • The candidate 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.
  • The candidate must not be a People's Republic of China national or Russian national unless also a U.S. citizen.
  • Experience with mechanical system design, testing, and analysis, including electro-mechanical, thermal, or precision systems, is valued.
  • Proficiency in computer-aided design and documentation of complex multi-part assemblies, with understanding of design for manufacturability, geometric dimensioning and tolerancing, and tolerance stack-ups, is valued.
  • Experience supporting prototyping and working with manufacturing vendors, including hands-on troubleshooting and iterative design improvement, is valued.
  • Ability to apply engineering tools and methodologies such as finite element analysis, thermal analysis, stress analysis, and electromagnetic interference analysis is valued.
  • Ability to collaborate across teams to solve technical problems involving complex systems is valued.
Responsibilities
  • Design, develop, and validate mechanical components and subsystems with increasing independence.
  • Lead prototyping and testing efforts for subsystems, including fixture design and validation.
  • Create and manage detailed computer-aided design models, assemblies, and engineering documentation.
  • Drive design improvements for reliability, manufacturability, and system performance.
  • Collaborate cross-functionally to integrate mechanical designs into complex systems.
  • Own documentation release processes and ensure compliance with configuration management standards.
Desired Qualifications
  • Experience in laboratory, cleanroom, or development settings.
  • Experience involving complex systems such as electronic packaging, server infrastructure, vacuum environments, cryogenic environments, or laser-based systems.

About the company

Quantinuum provides both quantum hardware and software. Its H1-1 processor runs any quantum program, and TKET is an architecture-independent stack that lets developers design circuits usable on different quantum devices. It adds quantum-secure protection by delivering encryption keys hardened for quantum threats at the device level. Its goal is to help real-world problems like fast drug development, new materials design, and supply-chain optimization, while keeping data safe from evolving cyber threats.

Company Size

501-1,000

Company Stage

IPO

Headquarters

Broomfield, Colorado

Founded

2021

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Simplify's Take

What believers are saying

  • September 8, 2026 CHIPS funding and GlobalFoundries partnerships de-risk manufacturing scale-up.
  • August 11, 2026 Oracle partnership opens enterprise access to Helios through OCI.
  • September 3, 2026 Aramco MOU expands Middle East commercial reach into energy workflows.

What critics are saying

  • August 11, 2026 revenue was $8 million, while GAAP net loss hit $597 million.
  • Adjusted EBITDA loss reached $68 million in Q2 2026, proving brutal capital intensity.
  • Utility-scale fault tolerance remains years away; revenue depends on research contracts, not durable demand.

What makes Quantinuum unique

  • Helios led QUOPS on September 2026, beating Google Willow and IBM Boston.
  • Oracle will host Helios on OCI, marrying quantum hardware with enterprise cloud distribution.
  • CHIPS award backs Quantinuum's QCCD trapped-ion stack and domestic semiconductor manufacturing.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

401(k) Retirement Plan

401(k) Company Match

Flexible Work Hours

Paid Vacation

Paid Sick Leave

Parental Leave

Employee Discounts

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

-2%

2 year growth

-2%
PR Newswire
Oct 5th, 2026
Quantinuum partners with University of Western Australia to build quantum computing talent and applications

Quantinuum has signed a memorandum of understanding with The University of Western Australia to advance the country's quantum computing capabilities. UWA-affiliated researchers, students, and entrepreneurs will gain cloud-based access to Quantinuum's quantum computing platform, including Helios, described as the world's most accurate commercial quantum computer. The collaboration will focus on developing quantum applications for sectors critical to Australia's economy, including critical minerals, energy, agriculture, and healthcare. The organisations will explore establishing a university-wide quantum computing applications centre to bring together academic, industry, and government stakeholders. Quantinuum will provide access to training programmes and its ecosystem initiatives. Working with UWA researchers and industry stakeholders, Quantinuum experts will evaluate use cases and assess hybrid workflows integrating quantum computing, artificial intelligence, and high-performance computing.

Business News
Oct 5th, 2026
Quantinuum signs university partnership.

Quantinuum signs university partnership. 34 min ago WA enterprises across mining, energy, and agriculture could soon tap into next-generation computational muscle following an agreement between the University of Western Australia and quantum computing leader Quantinuum. SUBSCRIPTION REQUIRED

Yahoo Finance
Sep 22nd, 2026
QBTS and QNT stocks tumble 25% as Fed hikes rates, valuations reset

D-Wave Quantum and Quantinuum are experiencing significant share price declines as investor appetite for speculative quantum computing stocks wanes. QBTS has fallen 27.7% over three months, whilst QNT dropped 25.1%. The Federal Reserve raised its benchmark rate by 25 basis points to 3.75%-4.00% on 16 September, its first increase since July 2023. Combined with Brent crude exceeding $100 per barrel and 10-year Treasury yields nearing 5%, the macro environment has turned hostile for high-duration technology stocks. D-Wave reported second-quarter revenues of $3.1 million, flat year over year, though bookings rose 59%. Its adjusted EBITDA loss widened 85% as development spending increased. Quantinuum's second-quarter revenues jumped 279%, with projected 2026 revenues of $28-$32 million. However, its adjusted EBITDA loss reached $68 million. Management does not expect positive free cash flow until later this decade.

Quantum Computing Report
Sep 15th, 2026
Sandia, Quantinuum, and NVIDIA introduce QUOPS framework to benchmark physical and logical quantum performance.

Sandia, Quantinuum, and NVIDIA introduce QUOPS framework to benchmark physical and logical quantum performance. A research collaboration led by Sandia National Laboratories, in partnership with Quantinuum and NVIDIA, has introduced the Quantum Universal Operations Performance System (QUOPS). Detailed in a multi-institution paper published on arXiv (arXiv:2609.12146), QUOPS is an architecture-agnostic benchmarking framework designed to measure integrated quantum computer performance across both physical- and logical-qubit platforms, addressing limits in traditional component-level metrics such as raw qubit count or isolated gate fidelities. QUOPS evaluates full system execution - incorporating compilation, error correction, syndrome decoding, and error mitigation - by executing randomized layers of arbitrary-angle single-qubit rotations, RP(θ), and CNOT gates across varying circuit widths (w) and depths. The benchmark yields two top-level system metrics: Q (QUOPS score), which defines the maximum circuit size s = 2 x w x depth successfully executed within a utility-motivated geometric volume (w[2] <= s <= w[3]) at a minimum mean process polarization threshold of 1/√e ≈ 61%; and Ω (QUOPS rate), which measures the net operational throughput in executed operations per second while accounting for sampling overheads from error mitigation or postselection. The publication provides direct cross-platform baseline measurements across leading hardware: Quantinuum's Helios-1 achieved a physical score of Q = 1,504 (1,824 under leakage postselection), Google's Willow achieved Q = 216 at 2.0 x 10[7] QUOPS/s, and IBM's ibm_boston reached Q = 204 at 3.1 x 10[5] QUOPS/s. Additionally, the team executed QUOPS on a fully fault-tolerant logical architecture using up to 8 Steane-encoded [[7,1,3]] logical qubits on Helios-1, demonstrating logical Clifford+T circuit execution with active magic-state injection and syndrome extraction to achieve Q = 40 at Ω = 4.9 QUOPS/s. By mapping resource requirements for canonical utility challenge problems into effective QUOPS circuit sizes - estimating targets of Q ≈ 2.5 x 10[8] for factoring RSA-2048 and Q ≈ 3.4 x 10[8] for FeMoco energy eigenvalue calculations - the framework quantifies the 5-order-of-magnitude gap remaining between contemporary hardware and utility-scale application requirements, establishing a standardized metric for government procurement, hardware roadmaps, and fault-tolerant architectural verification. Review the technical overview on Quantinuum here, access the peer-reviewed preprint on arXiv here, and inspect open-source benchmark implementations on GitHub here. September 14, 2026

Quantum Computing Report
Sep 9th, 2026
Quantinuum finalizes $100 million CHIPS Act R&D award to accelerate trapped-ion manufacturing.

Quantinuum finalizes $100 million CHIPS Act R&D award to accelerate trapped-ion manufacturing. Trapped-ion quantum hardware developer Quantinuum (NASDAQ: QNT) has finalized a definitive agreement with the U.S. Department of Commerce's CHIPS Research and Development Office to receive $100 million in direct federal R&D funding under the CHIPS and Science Act. Following the initial letter of intent announced in May 2026, the finalized award provides capital to strengthen domestic semiconductor manufacturing capabilities, advance integrated optics, and scale fault-tolerant quantum computers built on Quantinuum's Quantum Charge-Coupled Device (QCCD) architecture. The federal funding supports specific supply chain expansion initiatives designed to transition trapped-ion processing units from discrete optical setups toward volume-manufacturable semiconductor platforms. Quantinuum is enlisting GlobalFoundries to fabricate its next-generation ion traps and control electronics using 300mm wafer semiconductor fabrication lines. Simultaneously, the company is partnering with Monarch Quantum to develop and manufacture integrated photonic light engines, co-packaged lasers, and optical components engineered to replace bulk free-space laser optics. By shifting trap fabrication to commercial foundries and integrating optical control directly onto the chip, the collaborative effort aims to reduce physical component complexity, improve gate reproducibility, and establish a resilient domestic supply chain for utility-scale quantum hardware. The transaction represents Quantinuum's participation in the broader $2 billion federal CHIPS Act initiative designed to secure U.S. semiconductor and quantum hardware manufacturing sovereignty. Review the official press release here, access its previous coverage of the initial U.S. Department of Commerce CHIPS Act Quantum Allocations here, and examine its analysis of GlobalFoundries' Onshore Quantum Hardware Manufacturing Unit here. September 8, 2026