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Senior Full Stack Engineer

Alice & Bob
Paris
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 are at the forefront of the quantum race, competing with tech giants such as Google or IBM, and we are growing fast after securing €100 million of funding in 2025 to develop our unique technology.

Currently 100+ and counting, between physicists, PhD students, engineers and experienced business professionals, we are united to reach our ambitious goal. Are you a quantum pioneer? Join us on a mission to reshape the future!

The Cloud team empowers quantum hardware with software, creating tools for users. We seek a Senior Software Engineer to architect, mentor, and lead product delivery.

As a Senior Full Stack Engineer on the Cloud team, you'll design, build, and deploy full-stack apps for quantum hardware access. You'll contribute to technical decisions, mentor juniors, and shape our application architecture.

Responsibilities:
  • Design and implement new services and APIs in Python (FastAPI)
  • Contribute to and maintain our React-based frontend applications (SPAs)
  • Work on internal tools that enable teams to monitor and interact with our quantum chips
  • Collaborate with low-level software engineers to expose hardware functionality through higher-level interfaces
  • Facilitate code reviews and guide junior team members
  • Define and enforce best practices in architecture, testing, deployment, and monitoring
  • Help improve our CI/CD pipeline and deployment process (GitLab CI, Ansible, Docker/Podman)
  • Contribute to deployment and infrastructure decisions for both on-prem and cloud (GCP, OVH) environments
  • Participate in sprint planning, design discussions, and roadmap definition
Requirements:
  • Experienced: 3+ years of experience as a Software or Full Stack Engineer in a cloud environment.
  • Proficient in Python : Strong backend experience, with a good grasp of modern Python, FastAPI or similar frameworks, and asynchronous programming.
  • Frontend-Capable : Comfortable with React (or similar frameworks) and understand how to build and maintain SPAs.
  • DevOps-Minded : Experience working with containers (Docker/Podman), CI/CD workflows, and infrastructure tools like Ansible.
  • Infrastructure-Aware : Familiar with modern deployment environments, including Kubernetes (on-prem or in the cloud) and VM-based setups.
  • Collaborative Leader : Able to mentor others, lead by example, support a growing team, and help apply best practices.
  • Product-Focused : You understand user needs and care about delivering useful, maintainable, and well-documented software.
  • Professional-level English proficiency, both written and spoken.
We're also looking for:
  • Experience working in high-performance computing, hardware control systems, or quantum/physics-driven and product-driven environments
  • Contributions to open-source projects
  • Familiarity with GitLab (projects, issues, CI/CD)
  • Understanding of authentication and user access control (OAuth2, Keycloak, etc.)
Benefits:
  • 25-day vacation policy (as per French law) + RTT
  • Half of transportation cost coverage (as per French law), or yearly allowance for bike enthusiasts
  • Competitive health benefits with Helium/AXA
  • Meal vouchers with Swile, as well as access to 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
  • Subsidized membership with Urban Sports Club
Recruitment Process:
  • Screening Call with Grace, Talent Acquisition Specialist (45 min)
  • Hiring Manager Interview (45 min)
  • Technical Interview/Presentation with the Team (60 min)
  • Fit Interview (45 min)
  • Founders/Leadership Team 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.

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.
Publié le 2025-07-03

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