As an RF Sub Systems Design & Characterization Intern, your mission is to support the design, development, integration, and validation of RF hardware used to control Quantum bits (Qubits). Guided by senior engineers, you will gain hands-on experience on leveraging performance RF instruments, characterizing cryogenic components, and automating test workflows.
Following the candidate’s abilities, there will be 3 main possible topics to focus on:
- Cryogenic Bias tee footprint reduction
- RF Readout chain optimization at room temperature
- RF Readout chain optimization at cryogenic temperatures
As part of the team, you will contribute to solving technical challenges involving the entire signal chain from room temperature to cryogenics, by designing RF sub systems prototypes on PCB, manipulating different instruments to acquire data, and gathering inputs from your market tech watch. Working closely with cross functional teams of engineers and scientists, you’ll help to improve system performance and develop the next generation of quantum hardware platforms.
Responsibilities:
- Integrate and test control electronics and instrumentation (RF, DC, etc.) with the help of senior engineers.
- Characterize, simulate, and design RF hardware at room temperature and cryogenic temperatures (bias tees, filters, …)
- Rapidly design and prototype sub-systems for Qubits control, considering the electromechanical integration inside of the cryostat or the racks.
- Analyze and compare different RF component manufacturing technologies (substrates, processes, connectors, packaging, cables, etc.) in terms of performance, EMC, accessibility, and feasibility.
- Assist with test bench setup, cabling, equipment maintenance and monitoring.
- Perform lab measurements using RF bench equipment (VNAs and analyzers).
- Define, optimize, and automate the test programs needed to qualify or validate system hardware conformity.
- Preparing complete, well-documented test plans and reports results.
- Monitor instrument and component stock.
- Collaborate with multidisciplinary teams to develop and integrate systems required to control quantum chip architectures.
Requirements:
- Engineering or master's student (4-5 years of higher education) specializing in microwave frequencies, RF electronics, telecommunications, applied physics, computing, instrumentation, or related fields.
- Solid understanding of RF systems, S-Parameters, and wave propagation.
- Experience with RF test equipment, signal characterization and analysis techniques (VNA, Spectrum Analyzer, and oscilloscope).
- Experience with RF cad tools (HFSS, Keysight ADS,…)
- Familiarity with Python for RF data analysis and post-processing (NumPy, scikit-rf, matplotlib).
- Familiarity of using basic lab and prototyping tools (multimeter, torque driver, power tools, soldering iron).
- Ability to work as part of a team, with a strong spirit of innovation.
- Excellent communication skills in English, both written and oral. (English level B1/B2)
Skills Required
- Engineering or master's student with 4–5 years of higher education
- Specialization in microwave frequencies, RF electronics, telecommunications, applied physics, computing, instrumentation, or a related field
- Solid understanding of RF systems, S-parameters, and wave propagation
- Experience with RF test equipment, including VNAs, spectrum analyzers, and oscilloscopes
- Experience with RF computer-aided design tools such as HFSS or Keysight ADS
- Familiarity with Python for RF data analysis and post-processing
- Familiarity with NumPy, scikit-rf, and matplotlib
- Familiarity with basic laboratory and prototyping tools, including multimeters, torque drivers, power tools, and soldering irons
- Ability to work effectively in a team with a strong spirit of innovation
- Excellent written and oral English communication skills at B1/B2 level
What We Do
Founded in 2020, Alice & Bob secured $30 M funding in Series A. Today, we're recognized as one of the leaders in Quantum Computing. Our cat qubits are error corrected by design, reducing hardware requirements by up to 200 times compared to other platforms enabling fault-tolerant quantum computing at scale. Our headquarters is located in Paris, with offices in Boston, MA. We are 80+ smart and dedicated innovators, coming from 17+ countries and growing by the day. We are committed to one mission: build a useful quantum computer. Check open positions: bit.ly/joinusatAB
