Alice & BobSenior RF Engineer – Quantum Control
Alice & Bob is hiring a Senior RF Engineer – Quantum Control in Aubervilliers, France. Level rates it ; you can apply on Alice & Bob.
Level's read on this job
- Level rates this role Little AI ●○○○: aI is not part of the work.
- The posting mentions Python, Vna and Oscilloscopes among its tools and skills.
- Level classes it as a senior role.
- Alice & Bob has 48 other open roles on Level.
AI in this role
Design custom RF hardware and characterization test benches for superconducting quantum processors.
About the Role
Behind every stable qubit is a chain of RF hardware that has to perform flawlessly — and that's what you'll be building.
In a context of rapid scale-up of Alice & Bob's quantum processors, you'll ensure that control electronics and RF instrumentation keep pace with the growing demands of qubit control. Reporting to the HERMES Team Lead, our electronics and systems integration team, you'll design, build and validate test setups and characterization benches — and, where existing commercial solutions fall short, design custom RF hardware (power amplifiers, LNAs, filters, bias tees) — to guarantee that every piece of equipment meets the precision and scalability needs of our quantum chip design teams.
Responsabilities
- Design custom RF hardware (power amplifiers, LNAs, filters, bias tees) and PCB front-ends where commercial solutions fall short, using 3D EM simulation to validate designs before prototyping
- Define measurement plans and build test setups and characterization benches, running V&V (mostly in Python) with VNAs, oscilloscopes, SMUs, and spectrum analyzers
- Design or upgrade existing RF/DC systems to evolving requirements (spectral purity, pulse shape, power stability) following the scale up of quantum processors and control channels
- Troubleshoot technical issues across instrumentation, control electronics, and PCB hardware, driving root-cause analysis when needed
- Work closely with Quantum Hardware Infra colleagues, physicists, and software engineers, keep an eye on the state of the art, and document your work as you go
Requirements
- Master's or higher degree in Electrical Engineering, RF/Microwave Engineering, Physics, or a related field
- 5+ years of experience in RF design, characterization, and control electronics, including PCB design
- Strong RF design and signal processing skills (signal integrity, modulation/demodulation, filtering, noise/distortion analysis), with hands-on experience designing RF PCBs and using 3D EM simulation tools
- Comfortable with FPGA integration for control electronics, and with RF/electrical test equipment (VNAs, oscilloscopes, spectrum analyzers, SMUs, signal generators)
- Python skills for test automation and remote instrument control (e.g. SCPI)
- Strong troubleshooting mindset and root-cause analysis skills
- Excellent communication and cross-functional collaboration skills
- Proficient in English; French is a plus Remote work possible depending on specific ongoing tasks.
Nice to have
- Experience with cryogenic or quantum environments, knowledge of KiCad/Altium/HFSS, scientific writing
Recruitment process
- Screening call with Alexandra, Talent Acquisition (30 min)
- Interview with Clément Hiring Manager (60 min)
- Technical interview with the team (60 min)
- Leadership and fit interview (60 min)
How we rate this
Senior RF Engineer – Quantum Control at Alice & Bob rates 0 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.
Little AI. AI is not part of the work.
- ●●●● Builds AI80 to 100
- ●●●○ Works on AI60 to 79
- ●●○○ Uses AI40 to 59
- ●○○○ Little AI0 to 39
Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.
Prepare for this job
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Skills and AI tools this role asks for
Questions you could be asked
- Tell me about a project where rf design was part of your work. What did you do?
- Tell me about a project where pcb design was part of your work. What did you do?
- Tell me about a project where quantum computing was part of your work. What did you do?
- Tell me about a project where hardware testing was part of your work. What did you do?
- Tell me about a project where electromagnetics was part of your work. What did you do?
Adapt your resume
- List these exact terms on your resume: Rf Design, Pcb Design, Quantum Computing, Hardware Testing, and Electromagnetics. An applicant tracking system matches the wording, not the idea.
- Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
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