{"id":3345221,"url":"https://alion.io/job/alice-bob-rf-sub-systems-design-characterization-intern-mf","title":"RF Sub Systems Design & Characterization Intern M/F","company":{"id":1906,"name":"Alice & Bob","domain":"alice-bob.com","url":"https://alion.io/company/alice-bob","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":85,"open_postings":5,"ghost_share":0,"stale_share":0.4,"repost_share":0,"time_to_fill_p50_days":61,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Design","role_family":"Design","seniority":"intern","employment_type":"internship","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Paris, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Keysight ADS","optional":false},{"name":"Matplotlib","optional":false},{"name":"NumPy","optional":false},{"name":"Python","optional":false},{"name":"Scikit-learn","optional":false}],"status":"live","first_seen_at":"2026-10-27T14:56:36Z","employer_posted_date":"2026-10-27","last_verified_at":"2026-11-01T14:05:45Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"Purpose of the role\nAs 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.\nFollowing the candidate’s abilities, there will be 3 main possible topics to focus on:\nCryogenic Bias tee footprint reduction\nRF Readout chain optimization at room temperature\nRF Readout chain optimization at cryogenic temperatures\nAs 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.\nThis internship will start in February 2027 for a duration of 5-6 months!\nResponsibilities:\nIntegrate and test control electronics and instrumentation (RF, DC, etc.) with the help of senior engineers.\nCharacterize, simulate, and design RF hardware at room temperature and cryogenic temperatures (bias tees, filters, …)\nRapidly design and prototype sub-systems for Qubits control, considering the electromechanical integration inside of the cryostat or the racks.\nAnalyze and compare different RF component manufacturing technologies (substrates, processes, connectors, packaging, cables, etc.) in terms of performance, EMC, accessibility, and feasibility.\nAssist with test bench setup, cabling, equipment maintenance and monitoring.\nPerform lab measurements using RF bench equipment (VNAs and analyzers).\nDefine, optimize, and automate the test programs needed to qualify or validate system hardware conformity.\nPreparing complete, well-documented test plans and reports results.\nMonitor instrument and component stock.\nCollaborate with multidisciplinary teams to develop and integrate systems required to control quantum chip architectures.\nRequirements:\nEngineering or master's student (4-5 years of higher education) specializing in microwave frequencies, RF electronics, telecommunications, applied physics, computing, instrumentation, or related fields.\nSolid understanding of RF systems, S-Parameters, and wave propagation.\nExperience with RF test equipment, signal characterization and analysis techniques (VNA, Spectrum Analyzer, and oscilloscope).\nExperience with RF cad tools (HFSS, Keysight ADS,…)\nFamiliarity with Python for RF data analysis and post-processing (NumPy, scikit-rf, matplotlib).\nFamiliarity of using basic lab and prototyping tools (multimeter, torque driver, power tools, soldering iron).\nAbility to work as part of a team, with a strong spirit of innovation.\nExcellent communication skills in English, both written and oral. 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