Harness Engineer

About IonQ

IonQ, Inc. is the world’s leading quantum platform and merchant supplier, delivering integrated quantum solutions across computing, networking, sensing, and security. Our newest generation of quantum computers, the IonQ Tempo, powers customers and partners—including Amazon Web Services and AstraZeneca—to achieve 20‑fold performance gains in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense. In 2025 we set a world record with 99.99% two‑qubit gate fidelity.

Headquartered in College Park, Maryland, IonQ operates in California, Colorado, Massachusetts, Tennessee, Washington, Italy, South Korea, Sweden, Switzerland, Canada, and the United Kingdom. Our quantum computing services are accessible through all major cloud providers, while we also support networking and sensing customers worldwide. We make quantum platforms more accessible and impactful than ever before.

Capella, an IonQ company, spans national security, advanced sensing, and next‑generation compute to deliver secure, mission‑ready intelligence. The team culture is built on collaboration, rigorous engineering, and a shared commitment to solutions that strengthen global stability and security. Team members work alongside leading minds in space systems, quantum‑enabled technologies, and mission‑critical operations.

Capella values curiosity, resilience, and a willingness to tackle hard problems with precision and creativity. We welcome candidates from historically under‑represented backgrounds in technology, national security, and aerospace. No prior space experience is required. Diverse viewpoints strengthen our innovation and global impact.

Louisville, CO office (onsite). Travel: up to 10% domestic or international.

As a Staff Electrical Harness Design Engineer, you will own the full‑cycle PCBA design process—from early concept to flight readiness—collaborating with RF, mechanical, software, FPGA/SoC, and operations teams to deliver high‑reliability, space‑ready electronics. You will guide the Electrical Engineering team on special topics and present across disciplines to facilitate product readiness and reviews.

• Design system‑level harnesses from power distribution to high‑speed communications.
• Own the harness design lifecycle and implement best practices.
• Collaborate across teams—mechanical, RF, electrical, and systems—to ensure seamless integration.
• 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.

• Consistently deliver flight‑quality harnesses on schedule with minimal oversight.
• Proactively identify and articulate system‑level risks and drive early mitigations.
• Communicate across hardware, software, and cross‑functional teams with confidence and clarity.
• Make thoughtful trade‑offs in constrained environments and justify them with data.
• Show curiosity about advanced areas such as architecture optimization or radiation mitigation.
• Exhibit advanced, wide‑ranging harness engineering expertise.
• Get things done, align with stakeholders, and document concisely.

• Bachelor’s degree or higher in Electrical Engineering, Mechanical Engineering, or related discipline (or equivalent experience).
• 5+ years of experience designing, testing, and troubleshooting complex harnesses.
• Experience designing and maintaining systems from the beginning to the end of the product lifecycle.
• Knowledge of PCB assembly and collaboration with electrical design engineers to define harnessing requirements.
• Understanding of RF cabling, components, and testing.
• Excellent organizational skills and strong documentation habits.
• Knowledge of harnessing standards such as NASA‑STD‑8739.4 and IPC/WHMA‑A‑620.
• Experience with Solid Works or other CAD applications.
• Experience with Zuken or other harness design applications.
• Knowledge of cable assembly design.
• Understanding of electromagnetic effects,…