Senior Electronic Engineer

About IonQ:

IonQ, Inc. [NYSE: IONQ] is the world’s leading quantum platform and merchant supplier - delivering integrated quantum solutions across computing, networking, sensing, and security. IonQ’s newest generation of quantum computers, the IonQ Tempo, is the latest in a line of cutting-edge systems that have been helping customers and partners including Amazon Web Services, and AstraZeneca achieve 20x performance results and accelerate innovation in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense.

In 2025, the company achieved 99.99% two‑qubit gate fidelity, setting a world record in quantum computing performance. Headquartered in College Park, Maryland, IonQ has operations in California, Colorado, Massachusetts, Tennessee, Washington, Italy, South Korea, Sweden, Switzerland, Canada, and the United Kingdom. Our quantum computing services are available through all major cloud providers, while we also meet the needs of networking and sensing customers across land, sea, air, and space.

IonQ is making quantum platforms more accessible and impactful than ever before.

We are seeking a Senior Electronics Engineer to join our R&D department in Geneva. The successful candidate will take technical ownership of high-performance electronic subsystems that accurately drive and read out ultra-sensitive, fast opto-electronic modules (e.g., lasers, SPADs, interferometers). This is a hands‑on role spanning architecture, schematic/PCB design, bring‑up, and verification, with a strong emphasis on analog, RF/high‑speed, and mixed‑signal design to enable robust, industrial‑grade products.

You will be responsible for developing complex electronic hardware from early prototypes to industrialised modules, including low‑noise amplification, high‑speed/RF signal conditioning, drivers for opto-electronic components, A/D conversion, and optimised power‑supply blocks. A key part of the role is designing high‑performance, low‑noise mixed‑signal PCBs, applying robust partitioning, grounding, shielding, and layout techniques to preserve signal integrity and minimise coupling. You will define and review block specifications with system, optical, and firmware engineers, and you will lead technical trade‑offs around noise, bandwidth, timing, and electromagnetic compatibility.

You will plan and execute bring‑up and verification in the lab, using structured test methods and data‑driven analysis to ensure compliance with requirements and reliability targets. You will also coordinate and technically guide subcontractors and suppliers, and help evolve the team’s design process, documentation, and review practices.

• Own the design and verification of analog, mixed‑signal, and RF/high‑speed electronic subsystems, from architecture through schematic/PCB, bring‑up, and industrialisation
• Act as the analog/RF reference in R&D, driving cross‑team specifications, design reviews, and supplier execution to deliver robust, production‑ready hardware

We are looking for a candidate with a Bachelor’s or Master’s degree in Electronic or Opto‑electronic Engineering (or equivalent) and at least seven years of relevant experience designing complex, high‑performance hardware modules. You have strong expertise in analog and mixed‑signal design (low‑noise, precision, and high‑speed) and RF fundamentals (impedance matching, transmission lines, filtering), and you apply signal‑integrity and power‑integrity best practices to deliver repeatable performance—including on high‑performance, low‑noise mixed‑signal PCBs.

You are comfortable creating and reviewing schematics and PCB layouts (Altium Designer), using simulation and modelling tools (e.g., LTspice),…