Senior Staff Software Engineer

Overview Senior Staff Software Engineer – Alice & Bob, Paris, Île-de-France, France Alice & Bob develops the first universal, fault‑tolerant quantum computer, powered by the novel Schrödinger cat qubit. With €100 million of funding secured in 2025, the company is at the forefront of the quantum race, competing with tech giants such as Google and IBM. About the team The Framework team is a central resource that works across the organisation with researchers and technicians. As a Senior Software Engineer, you will play a key role in designing, developing, and maintaining high‑quality software solutions for hardware control and experimentation. About the role Your mandate is to define the service and platform architecture that enables agility, evolution, and scale of our quantum computing stack. You will create a cohesive, maintainable, and future‑proof platform that supports experiment workflows, automation, logical systems, and eventually the delivery of a QPU‑as‑a‑product for HPC or cloud users. Responsibilities Architect the services, APIs, and internal frameworks powering experiment workflows, calibration systems, automation loops, and configuration management. Choose and integrate appropriate storage technologies (SQL, NoSQL, object stores, columnar formats) to support scaling needs and diverse access patterns. Define architectural patterns that maximize agility, modularity, and maintainability across the platform. Collaborate closely with physicists and researchers to ensure models and interfaces reflect real experimental needs and enable fast iteration. Partner with data engineering to build reliable ingestion paths, schema governance, data lifecycle strategies, and cross‑team storage standards. Shape the end‑to‑end architecture required to deliver the QPU as a cohesive product: API design, user orchestration, deployment strategy, and integration with HPC/cloud ecosystems. Drive long‑term architectural strategy, technical roadmap, and cross‑organizational alignment. Mentor teams, challenge assumptions, and lead architecture reviews across the platform department. Requirements 12+ years designing large‑scale backend/platform architectures. Superior engineering proficiency in Python, async frameworks, service design, data orchestration, and performance optimisation. Demonstrated experience architecting complex infrastructure and data‑heavy distributed systems. Ability to define clean abstractions and synchronization mechanisms for hardware/software interaction loops. Deep expertise with storage technologies across SQL, NoSQL, timeseries, object storage, and distributed filesystems. Strong product mindset: ability to think about end‑to‑end delivery, user experience, reliability, and long‑term lifecycle. Ability to collaborate and challenge ideas with physicists, academic‑level experts, and deeply technical researchers. Strong technical leadership: able to influence direction, align teams, and support cross‑domain decision‑making. Bonus Skills Experience with containerisation, reproducibility, and hybrid cluster deployments (Kubernetes, HPC). Hands‑on experience with automation systems (schedulers, workflow engines, configuration graphs, data pipelines). Knowledge of distributed scheduling (SLURM, Kubernetes batch, Ray, Dask, etc.) and HPC environment specifics. Experience delivering a hardware‑backed product (accelerators, HPC nodes, scientific instruments) to external users. Knowledge of Rust, C++, or Go for performance‑critical or system‑level components. Benefits 25‑day vacation policy + RTT. Half of transportation cost coverage (or yearly allowance for bike enthusiasts). Competitive health benefits with Helium/AXA. Meal vouchers with Swile and a fully equipped kitchen. Parental benefits with crèche support. Flexible remote policy, up to 40 % a month. Language courses covered by the company. Mental health support with moka.care. Subsidised membership with Urban Sports Club. Recruitment Process Screening call (30 min). Hiring Manager interview (45 min). Technical interview with the team (60 min). Leadership interview (30 min). Fit interview (30 min). Reference check. 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. Referral increases your chances of interviewing at Alice & Bob by 2x. #J-18808-Ljbffr