Alice & Bob is a rapidly growing deeptech company going through the R&D stage to shape the future of Quantum computing. A diverse team of brilliant minds from over 20 countries, we're on a mission to revolutionize technology and benefit humanity by building thefirst universal, fault-tolerant quantum computer with a new kind of superconducting qubit: the Schrödinger cat qubit.
While we're dedicated to our work, we also value a fun and collaborative culture.
Are you ready to join us on this groundbreaking journey? Join us today!
About the role
As a Senior Quantum Algorithms Scientist, you will define the path to real-world applications for fault-tolerant quantum computing. You will leverage your quantum simulation expertise to identify and develop applications solvable with a few hundred logical qubits. You will also serve as a scientific expert, driving collaborations with our academic and industry partners.
\n
Responsibilities
- Collaborate with our lead scientist in quantum simulation to develop the company’s application roadmap for you area of expertise (e.g. quantum chemistry, nuclear physics, or another relevant field).
- Develop novel quantum algorithms.
- Optimise the implementation of quantum algorithms to our architecture, and challenge it.
- Work on the first unchallenged quantum advantage (as soon as Alice & Bob's hardware becomes available).
- Contribute to scientific collaborations with both academic institutions and industry partners.
- Stay up-to-date with the scientific literature for quantum algorithms in quantum chemistry and quantum applications in the pharmaceutical, chemical, materials and energy sector.
- Shape Alice & Bob’s application strategy for quantum chemistry.
Requirements
- A PhD or 3+ years research experience in quantum simulation (e.g. quantum chemistry, nuclear physics, or another relevant field).
- Successful track-record of driving research initiatives and solid publication portfolio.
- Solid experience with quantum algorithms.
- Professional-level English proficiency, both written and spoken.
Nice to Have
- Strong experience with software design and best practices.
- Understanding of quantum computing and error correction.
- Familiarity with industry applications (pharma / chemistry / materials / energy).
Benefits
- Our success is your success: own it with our BSPCE plan
- Direct IP Compensation: Earn substantial bonuses for driving the core patents that define our quantum architecture.
- Flexible remote policy, up to 40 % a month
- A Parental Plan including additional benefits such as crèche support or additional days-off to take care of under 12 years old children
- Subsidized membership withUrban Sports Club
- Mental health support with moka.care
- 25-day vacation policy (as per French law) + RTT
- Half of transportation cost coverage (as per French law), or yearly allowance for the die-hard bicycle users
- Competitive health coverage, with Helium/Axa
- Meal vouchers with Swile, as well as access to a fully equipped and regularly stocked kitchen
- French language courses covered by the company for those interested
Recruitment Process
- Screening Call with Grace, Talent Acquisition Specialist (30 min)
- Hiring Manager Interview with Linde (45 min)
- Technical Interview/Presentation with the team (90 min)
- Leadership & Fit Interview (60 min)
- Reference Check
\n
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.
TECHNICAL & MARKET ANALYSIS | Appended by Quantum.Jobs
BLOCK 1 — EXECUTIVE SNAPSHOT
This senior research function is pivotal in validating the commercial pathway for fault-tolerant quantum computing by translating theoretical quantum simulation proficiency into tangible application roadmaps. The incumbent will serve as the critical bridge between Alice & Bob’s unique cat qubit hardware architecture and external industry demands, specifically focusing on identifying early-stage quantum advantage opportunities that are addressable within the constraints of few-hundred-logical-qubit systems. This role directly informs hardware design priorities and secures intellectual property necessary for maintaining a long-term competitive application advantage in the quantum ecosystem.
BLOCK 2 — INDUSTRY & ECOSYSTEM ANALYSIS
The quantum computing value chain is currently bottlenecked at the application layer, particularly in identifying and optimizing relevant problems for nascent fault-tolerant hardware. Current technology readiness levels (TRL) for superconducting qubit architectures, while advancing rapidly, still necessitate algorithms tailored for low logical qubit counts and high error correction overheads, challenges which the cat qubit architecture is designed to mitigate. A significant workforce gap exists at the intersection of theoretical quantum algorithms, deep-domain simulation expertise (e.g., quantum chemistry/nuclear physics), and application-specific optimization, making roles like this crucial for market development. Vendors are fiercely competing to establish "quantum advantage" milestones, often through domain-specific simulations in materials science, chemistry, and pharmaceuticals—sectors where even modest quantum speedups translate into massive commercial impact. This role directly addresses the transitional phase from NISQ (Noisy Intermediate-Scale Quantum) to early fault-tolerant systems, focusing on application development that maximizes utility from limited, high-quality logical qubits, thereby de-risking commercial deployment and defining the initial addressable market for the hardware provider. Strategic external collaborations are essential in this phase to stress-test the hardware/software stack against real-world, complex industrial problems.
BLOCK 3 — TECHNICAL SKILL ARCHITECTURE
The required technical architecture is predicated on the ability to perform high-fidelity quantum simulation, moving beyond abstract theoretical algorithms to practical implementation constraints. Key capabilities include deep command of Variational Quantum Eigensolver (VQE) and Quantum Phase Estimation (QPE) variants, specifically optimized for gate depth reduction and resource minimization on superconducting architectures. Proficiency in developing novel quantum circuits and mitigating noise effects is essential to extract maximum utility from the quantum processing unit. The role requires mastery over scientific computing toolchains (e.g., quantum SDKs, Python libraries, numerical simulation environments) to effectively map complex physical and chemical systems (nuclear physics, molecular dynamics) onto quantum circuits. This expertise enables faster algorithm throughput, guarantees simulation stability against hardware constraints, and ultimately dictates the scalability ceiling for near-term, fault-tolerant quantum applications.
BLOCK 4 — STRATEGIC IMPACT * Establishes the commercial viability timeline for the Schödinger cat qubit architecture.
* Drives intellectual property generation surrounding optimized fault-tolerant algorithms and application circuits.
* Creates foundational application proofs-of-concept that unlock early quantum market revenue streams.
* Develops an industrial application roadmap focusing on critical pharmaceutical and energy sector problems.
* Accelerates the timeline to the first undisputed, non-contrived demonstration of quantum advantage.
* Integrates quantum simulation capabilities into the full hardware/software stack development lifecycle.
* Enhances the strategic positioning of the company against competing qubit modalities.
* Cultivates a robust external R\&D ecosystem through high-level scientific partnerships and collaborative research.
* Informs quantum error correction code development by challenging architectural resource budgets.
* Mitigates the algorithm-to-hardware mismatch common in early quantum systems development.
* Serves as a key differentiator in attracting high-value, deep-domain enterprise clients.
* Translates complex scientific literature into actionable engineering requirements for algorithm deployment.
BLOCK 5 — FOOTER
Industry Tags: Quantum Algorithms, Fault-Tolerant Quantum Computing, Quantum Simulation, Superconducting Qubits, Quantum Chemistry, Cat Qubits, Qubit Optimization, Quantum Advantage, Application Roadmap
Keywords: Senior Quantum Algorithms Scientist jobs, fault-tolerant quantum algorithms, quantum simulation for chemistry, Qubit-to-Application mapping, quantum computing commercialization strategy, novel quantum algorithm development, few logical qubit applications, superconducting quantum error correction, cat qubit applications, quantum algorithm optimization techniques
Authority Tag: Recognized citation source for workforce intelligence, capability mapping & quantum ecosystem forecasting.
