--- title: 'RF Sub Systems Design & Characterization Intern M/F at Alice & Bob' canonical: 'https://feeny.ai/job/rf-sub-systems-design-characterization-intern-m-f-alice-bob-paris-1fcsxm9qdqbe' type: 'job' last_seen: '2026-10-31' --- # RF Sub Systems Design & Characterization Intern M/F at Alice & Bob - **Company:** Alice & Bob - **Location:** Paris, France - **Employment:** internship - **Work type:** hybrid - **Posted:** 2026-10-27 - **Last confirmed live:** 2026-10-31 - **Apply:** https://jobs.lever.co/alice-bob/89c25130-6786-45de-a28d-59ce2cae7ed9 ## Job description Alice & Bob is developing the first universal, fault-tolerant quantum computer to solve the world’s hardest problems. The quantum computer we envision building is based on a new kind of superconducting qubit: the Schrödinger cat qubit 🐈‍⬛. In comparison to other superconducting platforms, cat qubits have the astonishing ability to implement quantum error correction autonomously! We're a diverse team of 250+ brilliant minds from over 35 countries united by a single goal: to revolutionise computing with a practical fault-tolerant quantum machine. Are you ready to take on unprecedented challenges and contribute to revolutionising technology? Join us, and let's shape the future of quantum computing together! Purpose of the role 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. This internship will start in February  2027 for a duration of 5-6 months! 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) Benefits: - 1 day off per month - Half of transportation cost coverage (as per French law) - Meal vouchers with Swile, as well as access to a fully equipped and regularly stocked kitchen Research shows that women might feel hesitant to apply for this job if they don't match 100% of the job requirements listed. This list is a guide, and we'd love to receive your application even if you think you're only a partial match. We are looking to build teams that innovate, not just tick boxes on a job spec. You will join of one of the most innovative startups in France at an early stage, to be part of a passionate and friendly team on its mission to build the first universal quantum computer! We love to share and learn from one another, so you will be certain to innovate, develop new ideas, and have the space to grow. ## About Alice & Bob ## Company Overview - **One-liner**: Alice & Bob is a French quantum computing company designing superconducting cat qubits—a type of qubit inherently protected from bit-flip errors—to build a universal, fault-tolerant quantum computer. - **Entity Type**: Private (Series B–II) - **Headquarters**: Paris, France (with offices in Boston, MA) - **Founded**: 2020 - **Founders**: Dr. Raphaël Lescanne (CTO) and Dr. Théau Peronnin (CEO) ## Core Business - **Primary industry**: Quantum computing hardware (superconducting circuits, cat qubit architecture) - **Target customers**: B2B – enterprises, research institutions, cloud providers, and government agencies - **Mission**: Build a useful quantum computer by pioneering error-corrected cat qubits that require 200× fewer physical qubits than competing platforms ## Products & Services - **Cat Qubit Chips**: Proprietary superconducting qubits with built-in bit-flip error protection. Generations include Boson, Helium, Lithium, Beryllium, and Graphene. - **Quantum Computer (via Cloud)**: Remote access to cat-qubit‑based quantum hardware and emulators (e.g., Felis emulator distributed via OVHcloud, Equinix). - **The Box (Consulting)**: Business strategy division helping enterprises identify early quantum advantage opportunities and timelines. - **Open‑Source / Developer Tools**: Collaborations on NVQLink (GPU/QPU integration) and CUDA‑Q integration with NVIDIA. ## Market Standing - **Valuation / Market Cap**: Not publicly disclosed - **Key Metrics**: - **Total Funding**: ~€180 M ($166 M per CB Insights) as of June 2026 - **Annual Revenue**: $8 M (estimated, per Apollo) - **Employees**: 250+ (company website); Apollo reports 163 with +72% YoY growth - **Notable Investors**: NVIDIA (NVentures), Bpifrance, Elaia, Breega, Supernova Invest, Atlantic Vantage Point (AVP), Future French Champions, European Innovation Council - **Growth Signals**: - Series B closed at €100 M in January 2025; extended with NVIDIA investment in June 2026 - Grant funding from ARPA‑E, DARPA, and PROQCIMA (France) - Named to French Tech Next40 for second consecutive year (2026) - World‑record bit‑flip time >1 hour (up to 252 minutes) demonstrated in September 2025 - Published theoretical proof that cat‑qubit architecture needs ~200× fewer qubits for fault tolerance - 70+ core patents on cat qubits ## Competitive Advantages - **Cat qubit moat**: Only pure‑play company focused on cat qubits; qubits are inherently protected from bit‑flip errors, drastically reducing hardware overhead for error correction. - **Strong IP portfolio**: 70+ core patents covering cat qubit design and error correction. - **Ecosystem partnerships**: Close collaboration with NVIDIA (NVQLink, CUDA‑Q), Google Cloud, Riverlane, Classiq, OVHcloud, and Equinix. - **Scientific advisory board**: Includes renowned quantum physicists (Daniel Gottesman, David DiVincenzo, John Martinis, Yasunobu Nakamura) and leading French research institutions. ## Strategic Focus - Execute chip roadmap (Boson → Graphene) targeting 100 high‑fidelity logical qubits by 2030. - Scale from current lab‑scale systems to a universal, fault‑tolerant quantum computer. - Expand international presence: HQ in Paris, new 4,000 m² R&D facility under construction, Boston office, and remote team across 12+ countries. - Deepen integration with classical HPC through NVIDIA and cloud partnerships. ## Why Work Here - **Culture**: Emphasizes pioneering spirit, cohesion, trustworthiness, and ingenuity. Regular team events (Monday breakfasts, Snacky Time, annual off‑site, hiking, Tech Cafés, Forum Day). - **Work policy**: Hybrid with up to 40% remote flexibility; relocation and visa support available. - **Compensation & perks**: Employee stock plan, 5 weeks holiday + RTT, 50% Navigo pass, meal vouchers (Swile), competitive healthcare (France & US), parental leave, 401k (US), language courses. - **Team**: 250+ people from 35 nationalities, 85 PhD holders. Engineering‑heavy (research & technical roles dominate). - **Recognition**: EgaPro index score of 54/100 (gender parity in progress); rated 4.0/5.0 on employer review sites. - **Growth trajectory**: High headcount growth (+72% YoY), active hiring (23 open positions as of mid‑2026, including experimental physicist, ML engineer, nanofabrication technician, etc.). ## Sources 1. [alice-bob.com/thats-us/](https://alice-bob.com/thats-us/) 2. [linkedin.com/company/alice-bob](https://linkedin.com/company/alice-bob) 3. [jobs.lever.co/alice-bob](https://jobs.lever.co/alice-bob) 4. [alice-bob.com/join-us/](https://alice-bob.com/join-us/) 5. [cbinsights.com/company/alicebob](https://www.cbinsights.com/company/alicebob) ## Other roles at Alice & Bob - [Senior People Operations Specialist M/F](https://feeny.ai/job/senior-people-operations-specialist-m-f-alice-bob-paris-dh650dbg3p7r) — Paris, France - [Business Development Intern M/F](https://feeny.ai/job/business-development-intern-m-f-alice-bob-boston-bzbnpvy5vgpx) — Boston, MA - [Technical Business Development Intern M/F](https://feeny.ai/job/technical-business-development-intern-m-f-alice-bob-boston-ys4f4ze0h0pe) — Boston, MA - [Export Control Intern M/F](https://feeny.ai/job/export-control-intern-m-f-alice-bob-paris-gcccs13nt3ng) — Paris, France - [Nanofabrication Dicing & Cleaning Intern M/F](https://feeny.ai/job/nanofabrication-dicing-cleaning-intern-m-f-alice-bob-aubervilliers-27zms4c1f03s) — Aubervilliers, France - [Nanofabrication Intern M/F](https://feeny.ai/job/nanofabrication-intern-m-f-alice-bob-aubervilliers-jpxk1t6h1v4e) — Aubervilliers, France - [PhD - Quantum Error Correction Codes for Cat Qubits M/F](https://feeny.ai/job/phd-quantum-error-correction-codes-for-cat-qubits-m-f-alice-bob-paris-tscyxrg540ny) — Paris, France - [Experimental Physics Intern M/F](https://feeny.ai/job/experimental-physics-intern-m-f-alice-bob-aubervilliers-1927y3yeej1b) — Aubervilliers, France - [Nanofabrication Test & Automation Intern M/F](https://feeny.ai/job/nanofabrication-test-automation-intern-m-f-alice-bob-aubervilliers-csrwmzfe9q7d) — Aubervilliers, France - [Nanofabrication AOI software Intern M/F](https://feeny.ai/job/nanofabrication-aoi-software-intern-m-f-alice-bob-aubervilliers-3g4dxq3vp0y1) — Aubervilliers, France