Full-Time

Staff Harness Engineer

Posted on 6/16/2026

IonQ

IonQ

1,001-5,000 employees

Trapped-ion quantum computing hardware and services

Compensation Overview

$126.9k - $166.1k/yr

No H1B Sponsorship

San Francisco, CA, USA + 1 more

More locations: Louisville, CO, USA

In Person

This role is based onsite at the Louisville, Colorado office.

US Citizenship Required

Bachelor's

Category
Hardware Engineering (1)
Required Skills
CAD
SolidWorks

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Requirements
  • A Bachelor of Science or higher from an accredited college in Electrical Engineering, Mechanical Engineering, or a related discipline, or equivalent experience/combined education.
  • At least 5 years of experience designing, testing, and troubleshooting complex harnesses.
  • Experience designing and maintaining systems throughout the product lifecycle.
  • Knowledge of printed circuit board assemblies and experience working closely with electrical design engineers to define harnessing requirements and inform board-level design decisions.
  • Understanding of radio-frequency cabling, components, and testing.
  • Strong organizational skills and documentation habits.
  • Strong knowledge of industry harnessing standards, including NASA-STD-8739.4 and IPC/WHMA-A-620.
  • Experience with SolidWorks or other computer-aided design applications.
  • Strong knowledge of Zuken or other harness design applications.
  • Experience with engineering product lifecycle management tools.
  • Strong knowledge of cable assembly design.
  • Understanding of electromagnetic effects, including electromagnetic compatibility and electromagnetic interference.
  • Eligibility to work with U.S. Government space technology subject to International Traffic in Arms Regulations and related export controls through U.S. person status or required authorizations.
Responsibilities
  • Design system-level harnesses from power distribution to high-speed communications.
  • Own the harness design lifecycle and implement harness design best practices.
  • Collaborate across mechanical, radio-frequency, electrical, and systems teams to ensure seamless integration, including electrical component selection, testing, manufacturing, and production processes.
  • Serve as the technical point of contact for wire, cable, connector, and harness suppliers.
  • Support resolution of non-conformances from harness suppliers.
  • Provide critical input to schedule planning, hardware requirements, and process improvements.
  • Define test plans and verification strategies that meet flight-readiness requirements.
  • Guide the Electrical Engineering team on special topics and present across disciplines to facilitate ideas, product readiness, and reviews.
Desired Qualifications
  • Curiosity about architecture optimization or radiation mitigation, even when these areas are outside the immediate scope.
  • Advanced, wide-ranging experience in harness engineering using in-depth professional knowledge.

IonQ sells quantum computing through cloud access and on-site systems that use trapped-ion qubits. Its processors, such as Forte and Tempo, are accessed by customers via cloud platforms or deployed on customer sites, and the company is expanding into quantum networking, quantum key distribution, and sensing through acquisitions and a SkyWater Technology deal. It differentiates itself with trapped-ion technology and by building a broader quantum ecosystem through strategic acquisitions and partnerships to connect devices and services beyond hardware alone. Its goal is to scale commercial quantum computing, grow revenue, and strengthen its cash position to support ongoing expansion and ecosystem development.

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

College Park, Maryland

Founded

2015

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Simplify Jobs

Simplify's Take

What believers are saying

  • Q2 2026 revenue hit $80.1 million, up 287%, and guidance rose to $290 million.
  • RPOs reached $485 million, signaling stronger contracted demand into 2026.
  • DARPA expanded the optical-clock program to $58 million, funding manufacturing and defense scale.

What critics are saying

  • Quantum commercialization remains unproven; 2027’s 256-qubit target still trails fault-tolerant usefulness.
  • Wolfpack Research’s February 2026 Pentagon-contract attack and Scott+Scott scrutiny pressure credibility.
  • Quantinuum, IBM, and Rigetti intensify competition while IonQ’s huge GAAP losses persist.

What makes IonQ unique

  • IonQ’s trapped-ion systems deliver 99.99% two-qubit fidelity and all-to-all connectivity.
  • SkyWater acquisition made IonQ vertically integrated, spanning design, fabrication, packaging, and deployment.
  • IonQ’s quantum networking push spans EPB, Sandia, and ClavisXG security products.

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Benefits

Biweekly catered lunches

Parental leave

Health, vision, & dental insurance

Flexible time off

401(k) with 5% match

University facilities

Commuter benefits

Growth & Insights and Company News

Headcount

6 month growth

3%

1 year growth

0%

2 year growth

-1%
Yahoo Finance
Sep 1st, 2026
Quantum computing stocks poised to fall hardest if September triggers AI sell-off

IonQ reported second-quarter revenue of $80.1 million, up 287% year-over-year, and raised its full-year guidance to $280 million-$290 million from $260 million-$270 million. The company's remaining performance obligations grew 297% to $485 million. Quantum computing stocks have declined more sharply than the broader tech sector during sell-offs in 2025, falling harder than the Nasdaq-100 on 17 of 23 trading days when tech dropped at least 1.5%. The sector faces valuation concerns, with IonQ trading at significantly higher multiples than comparable unprofitable software companies like C3.ai and BigBear.ai, which trade at 6.9 times and 10.1 times forward sales respectively. September historically sees average market declines of 1.16%, though upcoming events including the jobs report and Federal Reserve meeting could increase volatility.

PR Newswire
Sep 1st, 2026
QC Ware and IonQ achieve chemical accuracy in drug discovery with hybrid quantum workflow

QC Ware has demonstrated a hybrid quantum-classical chemistry workflow using its Promethium platform and IonQ's Forte quantum computer via Amazon Braket. The test modelled the heme active site of cytochrome P450nor, an enzyme in the superfamily responsible for most human drug metabolism. The workflow calculated electrostatic interaction energy within 0.5 kcal/mol of classical benchmarks, meeting the 1 kcal/mol threshold for chemical accuracy. This represents more than double the accuracy of standard classical methods. Promethium preprocessed a 115-atom model containing over 1,000 molecular orbitals, isolating it to a 4-orbital active space mapped onto 8 qubits for measurement. IonQ Forte's all-to-all qubit connectivity enabled complex entangling gates without routing overhead. The demonstration shows how more accurate binding energy predictions at metal centres could help pharmaceutical researchers better rank drug candidates and identify metabolic risks earlier in development.

Yahoo Finance
Aug 25th, 2026
IonQ appoints tech finance expert Eric Ball and former Samsung North America CEO Timothy Baxter to board

IonQ has appointed Dr Eric Ball and Timothy Baxter to its board of directors. Ball brings nearly 40 years of financial experience from companies including Oracle, where he served as Senior Vice President and Treasurer for 10 years, arranging $52 billion of financing and participating in over 100 acquisitions. Baxter served as Chairman of SkyWater Technology's board until IonQ's recent acquisition of the company. He has over 40 years of technology leadership experience, including roles at AT&T, Sony, and Samsung, where he was CEO of Samsung North America. The appointments support IonQ's expansion plans as it scales quantum computing manufacturing and integrates its quantum platform components. The company describes itself as the world's leading quantum platform and foundry, with operations across North America, Latin America, EMEA, and APAC.

Yahoo Finance
Aug 24th, 2026
IonQ's Skyloom deploys 84 optical communication terminals on orbit for US Space Development Agency

Skyloom Global, an IonQ company, has successfully deployed additional optical communication terminals (OCTs) on orbit, bringing the total to 84 installations. The OCTs were launched on 16 July 2026 aboard a SpaceX Falcon 9 rocket from Vandenberg Space Force Base, California. The terminals are aboard York Space Systems satellites supporting the Space Development Agency's Proliferated Warfighter Space Architecture. This follows the initial Tranche 1 mission deployment in September 2025. IonQ's President of Quantum Platform, Jordan Shapiro, said the milestone reflects years of industrialisation and commitment to strengthening space-based communications infrastructure. The OCTs provide the backbone for resilient, data-rich mesh networks designed to deliver high-throughput, low-latency communications for national defence.

Yahoo Finance
Aug 22nd, 2026
IonQ quantum computing stock surges with 287% revenue growth to $80.1M

IonQ, a quantum computing company, is developing technology toward practical applications despite current accuracy limitations. The company's systems achieve 99.99% two-qubit gate fidelity, the industry's best, though still below classical computer standards. IonQ is working on a fault-tolerant 10,000-qubit quantum computer, considered the minimum for mainstream viability. Its 256-qubit system is currently undergoing testing. In Q2, IonQ's revenue surged 287% year over year to $80.1 million. Acquisitions contributed to this growth, but management projects over 100% organic growth for the year, measuring only gains from existing business units. The company is collaborating with customers and partners to fund research and develop commercially viable products. IonQ stock currently trades below its all-time highs.

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