Associate Firmware 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.

Vector Atomic, an IonQ company, is building quantum technology to transform navigation, timing, geophysical exploration, and telecommunications. Our team of engineers, scientists, software developers, and operations professionals works together to solve complex challenges and turn bold ideas into real‑world solutions. We value collaboration, curiosity, and diverse perspectives, and we give every team member the opportunity to make an immediate impact while growing their skills.

If you’re excited to work on breakthrough technology in a fast‑paced, hands‑on environment, we’d love to hear from you.

Location: This role is based onsite at our office in Pleasanton, CA.
Travel: Up to 5%, domestic or international.
Job : 1702

We’re looking for exceptional early‑career engineers to grow with us. As an Associate Firmware Engineer, you’ll work alongside world‑class physicists and hardware engineers to build embedded software for next‑generation quantum sensing instruments. This is a hands‑on, high‑impact role where your code directly enables precision measurement at the frontier of quantum technology.

If you’ve just completed a degree from a top engineering program and want to do work that matters, not CRUD apps, but real‑time control systems running inside instruments that measure the universe, this is your role.

• Write and verify embedded firmware for ST microcontrollers, including COTS devices and MCUs integrated into custom ASICs
• Implement control algorithms critical to the operation of high‑precision quantum sensing instruments
• Develop peripheral drivers for mixed‑signal devices, working directly from electronic schematics
• Partner with hardware engineers on board testing and bring‑up activities
• Contribute to a rigorous engineering culture through code reviews, Git Hub task tickets, and retrospectives
• Clearly document and communicate your work in a highly collaborative, cross‑disciplinary environment

• Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, or Computer Science from an accredited program, we’re targeting graduates from highly rated programs with strong fundamentals
• Demonstrated ability to write production-quality C/C++ for small embedded processors
• Experience writing interrupt service routines, peripheral drivers, and multi‑threaded firmware using RTOSs and/or bare‑metal environments
• Scripting experience in Python, Perl, or similar languages
• Hands‑on experience with lab test equipment (oscilloscopes, function generators, voltmeters)
• Strong debugging instincts, able to isolate and resolve bugs using debuggers and simulation tools
• Comfort working in a laboratory setting
• To comply with the US export control laws, Vector Atomic employees must be U.S. citizens (born or naturalized), lawful U.S. permanent residents (i.e. green card holders), and certain categories of refugees, and asylees.

• Experience designing PID or other control algorithms
• Familiarity with fixed‑point arithmetic and digital filter…