Senior Microwave Characterization Engineer

Senior Microwave Characterization Engineer About IonQ: IonQ, Inc. (NYSE: IONQ) is the world’s leading quantum platform and merchant supplier. IonQ delivers integrated quantum solutions across computing, networking, sensing, and security. Our newest generation of quantum computers, the IonQ Tempo, is a cutting‑edge system that has helped partners such as Amazon Web Services and AstraZeneca achieve 20× performance gains 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 operates in the United States, 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.

Location: Boston, MA (on‑site) Travel: Up to 10% domestic Job ID: 1631 The Role: We are looking for a Senior Microwave Characterization Engineer to join our Quantum Interconnect Division. As a Senior Microwave Characterization Engineer, you’ll be part of a cross‑functional team whose mission is to lead IonQ on its journey to build the world’s best quantum computers to solve the world’s most complex problems. In this role, you will be responsible for developing and executing rigorous microwave characterization of our quantum interconnects, as well as leveraging data to improve the performance of our devices.

Responsibilities: Design and execute comprehensive microwave characterization experiments for next‑generation quantum interconnects at room and cryogenic temperatures. Develop and implement automated testing procedures using software tools to accelerate characterization cycles. Validate measurement data by performing correlating electromagnetic simulations.

Analyze complex RF/microwave data to identify critical performance metrics and troubleshoot system deficiencies in close collaboration with hardware and design teams. Maintain, calibrate, and upgrade advanced microwave test equipment (e.g., VNAs, spectrum analyzers, power meters) in a laboratory setting. Document all characterization findings, procedures, and reports with precision for internal knowledge transfer and system optimization.

Requirements: 5+ years of professional experience in RF/Microwave characterization, testing, and metrology within the quantum, semiconductor, or advanced technology sectors, or an equivalent combination of education and experience. Master’s Degree in Electrical Engineering, Physics, or a related field, or equivalent practical experience. Proven technical expertise in operating Vector Network Analyzers (VNA), spectrum analyzers, and arbitrary waveform generators.

Demonstrated proficiency in programming languages (e.g., Python, MATLAB) for instrument control and data processing. Experience with simulation software (COMSOL, HFSS). Strong collaborative and communication skills essential for working within a multi‑disciplinary engineering and scientific environment.

Preferred Qualifications: Ph.D. in Electrical Engineering or Physics. Direct experience with cryogenic RF/Microwave measurement techniques and system integration. Familiarity with quantum computing principles or trapped‑ion systems.

Experience in designing, simulating, and characterizing microwave components and transmission lines (e.g., coplanar waveguides, microstrip). Prior experience in a fast‑paced, high‑tech R&D or startup environment. The approximate base salary range for this position is $126,887 - $166,127.

The total compensation package includes base, bonus, equity, and a range of benefit options listed on our career site. Compensation varies based on individual factors such as education, qualifications, and experience of the selected candidate, specific office location, and market data. Our benefits include comprehensive medical, dental, and vision plans, matching 401K, unlimited PTO and paid holidays, parental/adoption leave, legal insurance, and a home technology stipend.

At IonQ, we believe in fair treatment, access, opportunity, and advancement for all while striving to identify and eliminate barriers. We empower employees to thrive by fostering a culture of autonomy, productivity, and respect. We are dedicated to creating an environment where individuals can feel welcomed, respected, supported, and valued.

We are committed to equity and justice. We welcome different voices and viewpoints and do not discriminate on the basis of race, religion, ancestry, physical and/or mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, gender expression, transgender status, age, sexual orientation, military or veteran status, or any other basis protected by law. We are proud to be an Equal Employment Opportunity employer.

US Technical Jobs: The position you are applying for will require access to technology that is subject to U.S. export control and government contract restrictions. Employment with IonQ is contingent on verifying “U.S. Person” status for export controls and government contracts, obtaining any necessary license, and/or confirming the availability of a license exception under U.S. export controls.

Accordingly, we will have some additional questions regarding your immigration status that will be reviewed by compliance personnel to ensure compliance with federal law. US Non‑Technical Jobs: Because of applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident, or lawfully admitted into the U.S. as a refugee or granted asylum. Accordingly, we will have some additional questions regarding your immigration status that will be reviewed by compliance personnel to ensure compliance with federal law. #J-18808-Ljbffr