Senior Software Engineer at Alice & Bob | Paris

Alice & Bob is pioneering the development of the world's first universal, fault-tolerant quantum computer, aimed at tackling some of the most complex challenges facing humanity.Our vision revolves around the innovative Schrödinger cat qubit—a groundbreaking superconducting qubit capable of autonomous quantum error correction, setting it apart from existing s…

Alice & Bob is at the forefront of quantum technology, developing the world's first universal, fault-tolerant quantum computer designed to tackle some of the most challenging problems facing humanity.The quantum computer we aim to create utilizes an innovative type of superconducting qubit known as the Schrödinger cat qubit ‍⬛. Unlike other superconducting platforms, these cat qubits possess the remarkable capability of autonomously implementing quantum error correction! Our diverse team of over 140 talented individuals from more than 20 countries shares a common mission: to transform computing with a viable fault-tolerant quantum machine. If you're eager to embrace extraordinary challenges and play a role in advancing technology, join us as we shape the future of quantum computing together! Are you seeking an internship that allows you to apply your mechanical engineering expertise to groundbreaking systems? As a Mechatronic Engineering Intern, you will engage in multidisciplinary projects that integrate design, manufacturing, assembly, and testing in a highly technical setting. This position is perfect for those with a solid mechanical foundation who also have an interest in electronics, instrumentation, and testing activities. Join Alice & Bob and aid in the development of cutting-edge technologies at the forefront of innovation. In this role, you will primarily support mechanical design initiatives. You will work on new developments and specialized high-tech projects that involve cryogenic, RF, and electronic applications, with opportunities to assist in the validation and testing of mechanical and electronic systems. Through this experience, you will help transform intricate concepts into practical, effective solutions that advance Alice & Bob’s mission to create groundbreaking quantum technologies.

Alice & Bob is pioneering the development of the first universal and fault-tolerant quantum computer, aiming to tackle some of the world's most complex problems.The quantum computer we envision relies on a groundbreaking type of superconducting qubit: the Schrödinger cat qubit ‍⬛. Compared to other superconducting platforms, cat qubits possess the remarkable ability to autonomously implement quantum error correction!We are a diverse team of over 140 brilliant minds from more than 20 countries, united by a singular mission: to revolutionize computing with a practical and fault-tolerant quantum machine. Are you ready to face unprecedented challenges and contribute to reshaping technology? Join us as we shape the future of quantum computing together!

About the Internship alice-bob is looking for a Quantum Compilation Intern to join the team in Paris. This internship focuses on real-world quantum computing challenges and offers a chance to work alongside experienced professionals in the field. What You Will Do Develop and optimize quantum algorithms Support projects that connect classical and quantum computing Contribute to ongoing research and development in quantum technologies Gain practical experience with quantum compilation techniques Location This internship is based in Paris.

Join the innovative team at alice-bob! We invite passionate individuals eager to contribute their skills and creativity through spontaneous applications. This is your chance to showcase your talents and potentially join a forward-thinking company that values innovation and collaboration.

Alice & Bob is at the forefront of developing the first universal, fault-tolerant quantum computer designed to tackle some of the world's most challenging problems.Our vision revolves around an innovative type of superconducting qubit known as the Schrödinger cat qubit ‍⬛. Unlike other superconducting platforms, cat qubits offer the remarkable capability of implementing quantum error correction autonomously!Our diverse team of over 140 talented individuals from more than 20 countries is united by a singular ambition: to transform computing with a practical fault-tolerant quantum machine. Are you prepared to embrace unprecedented challenges and help revolutionize technology? Join us in shaping the future of quantum computing!Currently, Alice & Bob is advancing towards building its own prototyping cleanroom in Île-de-France (construction is in progress, with operations set to commence in Q2 2026).This state-of-the-art facility will:- Expedite design iteration cycles by minimizing chip fabrication lead times- Enhance Alice & Bob’s nanofabrication capabilities, fostering the development of high-performance devices and improved 3D integration masteryThis position is integral to the Foundries & Process Integration (FPI) team within the Quantum Hardware Department. The FPI team plays a pivotal role through two main avenues: Supporting internal nanofabrication activities conducted by the Nanofabrication Front-End and Back-End teams by:- Coordinating and executing process data analysis (defining test structures, trend analysis, process data management via MES)- Developing performance models for processes and devices (e.g., yield projection) to inform design decisions- Leading comprehensive failure analysis across fabrication teams Driving external foundry collaborations to guarantee a scalable chip supply and facilitate the transition towards large-scale quantum processors About the RoleWe seek a hands-on MES Integration Engineer to deploy, configure, and manage a commercial Manufacturing Execution System (MES) that supports our quantum chip fabrication and packaging processes. This role emphasizes converting intricate superconducting device process flows into MES logic, integrating fabrication, metrology, and testing equipment, ensuring comprehensive data traceability, and assisting process engineers and operators within an R&D and prototyping environment.

Alice & Bob is pioneering the development of the world's first universal, fault-tolerant quantum computer to tackle the most challenging problems that humanity faces.Our vision revolves around creating a revolutionary superconducting qubit known as the Schrödinger cat qubit, which stands out in the realm of superconducting platforms by its remarkable capacity to autonomously implement quantum error correction!As a leader in the quantum race, we are in direct competition with industry giants like Google and IBM, and our growth trajectory is accelerating, thanks to securing €100 million in funding in 2025 for advancing our groundbreaking technology.Currently, we boast a diverse team of over 100 professionals including physicists, PhD candidates, engineers, and seasoned business experts, all united in our ambitious mission to redefine the future of quantum computing.About the Team:The Framework Team serves as a vital resource, collaborating across the organization with researchers and technicians, and is fundamentally woven into our operational workflows. As a Senior Software Engineer within this team, you will be instrumental in designing, developing, and maintaining top-tier software solutions. Your contributions will enhance our core products and foster innovation as you help build our proprietary software that governs hardware and the experiments we conduct. You will also take on a technical leadership role, mentoring junior engineers and influencing architectural decisions.About the Role:You will lead the definition of our service and platform architecture designed to enable agility, evolution, and scalability of our quantum computing stack. Your primary objective is to create a cohesive, maintainable, and future-proof platform that underpins experimental workflows, automation, logical systems, and ultimately facilitates the delivery of a QPU-as-a-product for high-performance computing or cloud users.Your role will be pivotal in bridging scientific R&D, data engineering, and production-grade platform design, allowing researchers and physicists to iterate swiftly without sacrificing reliability.

Alice & Bob is pioneering the development of the first universal, fault-tolerant quantum computer aimed at tackling some of the most challenging problems in the world. Our innovative quantum computer is based on a revolutionary type of superconducting qubit known as the Schrödinger cat qubit. Unlike traditional superconducting platforms, cat qubits possess the remarkable capability to autonomously implement quantum error correction!We are leading the quantum revolution, standing shoulder to shoulder with industry giants like Google and IBM, and we are rapidly expanding following our successful €100 million funding round in 2025 dedicated to advancing our unique technology.With over 100 talented individuals, including physicists, PhD students, engineers, and seasoned business professionals, we are united in our quest to achieve our ambitious vision. Are you ready to join us as a quantum pioneer and help reshape the future?About the Role:The Calibration Team is tasked with automating the calibrations of our Quantum Processing Unit (QPU) to maximize its performance and ensure its operational reliability. As a Senior Software Engineer within this team, you will be instrumental in architecting the automatic calibration software. You will collaborate closely with quantum scientists to develop, maintain, and enhance the calibration processes. Additionally, you will work alongside other software engineers across the organization to facilitate seamless integration of your team's software with other in-house software components.

Join Alice & Bob, a pioneering force in quantum computing, as we develop the first universal, fault-tolerant quantum computer designed to tackle the world’s most challenging problems.Our vision revolves around a groundbreaking superconducting qubit known as the Schrödinger cat qubit ‍⬛, which uniquely empowers autonomous quantum error correction, setting it apart from traditional superconducting platforms.Comprising a diverse team of over 140 exceptional talents from more than 20 countries, we are driven by a singular mission: to transform the landscape of computing with a practical fault-tolerant quantum machine. Are you prepared to embrace unparalleled challenges and help reshape the future of technology? Become a part of our journey, and let’s revolutionize quantum computing together!The Calibration Team is dedicated to automating the calibration processes of our cat‑qubit Quantum Processing Unit (QPU) to optimize performance and ensure continuous operational integrity. As a Calibration API Software Engineer, you will be responsible for developing and maintaining the calibration API and supporting libraries utilized by physicists to create automated calibration blocks, analysis routines, and calibration reports. Your role will be crucial in ensuring these tools are resilient, thoroughly tested, CI/CD friendly, and seamlessly integrated with our internal acquisition software that governs the QPU.

Alice & Bob is at the forefront of developing the world's first universal, fault-tolerant quantum computer, aiming to tackle some of humanity's most challenging problems.Our visionary quantum computer is centered around an innovative type of superconducting qubit known as the Schrödinger cat qubit ‍⬛. Unlike traditional superconducting platforms, cat qubits possess a remarkable capability to autonomously implement quantum error correction!We are a vibrant team of over 140 talented individuals from more than 20 countries, united by a common mission: to transform the landscape of computing with a practical fault-tolerant quantum machine. If you are ready to confront groundbreaking challenges and play a pivotal role in shaping the future of technology, we invite you to join us!In a rapidly evolving environment where quantum computing technology is progressing towards scalable industrial applications and gaining commercial traction, the Senior Project Manager - Customer-Facing Quantum Computing Programs will be responsible for the successful execution of high-impact customer programs, ensuring measurable customer value, excellence in delivery, and the protection of revenue.Reporting directly to the VP of Business & Revenue, you will collaborate closely with Sales, Technical Account Management, Account Management, R&D, and Engineering teams to achieve timely, budget-conscious, and targeted execution while ensuring high customer satisfaction (driven by NPS) and fostering long-term revenue growth.

At Alice & Bob, we are pioneering the development of the first universal, fault-tolerant quantum computer aimed at addressing the world’s most challenging problems.Our vision revolves around an innovative superconducting qubit known as the Schrödinger cat qubit, which uniquely enables autonomous quantum error correction, setting us apart from other superconducting platforms!As a frontrunner in the quantum technology race, we are competing with industry leaders like Google and IBM, and have recently secured €100 million in funding in 2025 to advance our exceptional technology.With a rapidly expanding team of over 100 dedicated professionals—including physicists, PhD students, engineers, and seasoned business experts—we are united in our mission to reshape the future of quantum computing. Are you ready to be a part of this revolutionary journey?About the RoleJoin our Performance Optimization (PoP) team, where we leverage cutting-edge machine learning and optimization tools throughout the lifecycle of our quantum chips: from design and simulation to calibration, operation, and error correction. You will collaborate with a passionate team within an extraordinary organization focused on building a universal, fault-tolerant quantum computer without taking any shortcuts.As a Quantum Experimentalist on the PoP team, your role will involve driving innovation and optimization of our cat-qubit processors. This includes measuring, characterizing, and enhancing our quantum circuits, as well as improving our experimental tools and setups. You will integrate machine learning and optimization into our hardware design while collaborating with internal teams to propel our experimental roadmap forward.

Join our innovative team at alice-bob as a Technician in Nanofabrication (Apprenticeship). In this role, you will gain hands-on experience in cutting-edge nanofabrication processes while working closely with industry experts. This apprenticeship offers a unique opportunity to develop your skills in a dynamic environment, contributing to exciting projects that push the boundaries of technology.

Alice & Bob is pioneering the development of the world’s first universal, fault-tolerant quantum computer, aimed at tackling some of the most complex challenges facing humanity today. Our innovative design features a groundbreaking type of superconducting qubit known as the Schrödinger cat qubit, which uniquely enables autonomous quantum error correction.As a leader in the quantum computing revolution, we are in direct competition with industry giants such as Google and IBM. Our diverse team of over 100 professionals—including physicists, PhDs, engineers, and seasoned business experts—works collaboratively towards a shared vision of technological advancement. Are you prepared to embrace extraordinary challenges and play a pivotal role in transforming the future of technology?We invite you to join us in shaping the future of quantum computing!About the RoleThe Quantum Error Correction (QEC) team at Alice & Bob is dedicated to enhancing our fault-tolerant architecture. Your role will involve discovering innovative strategies to minimize the need for and costs associated with fault tolerance, while also supporting the implementation of optimal solutions. You will actively contribute to the research and development of our fault-tolerant quantum computing architecture, joining a passionate and focused team in a dynamic organization committed to building a universal and reliable quantum computer.As a Senior Quantum Error Correction Researcher, you will engage in the research and development of our advanced fault-tolerant quantum computing architecture and assist in deploying the best solutions for our quantum systems.

Alice & Bob is at the forefront of quantum computing, developing the world's first universal, fault-tolerant quantum computer designed to tackle the most complex challenges facing humanity.Our innovative quantum computer is founded on a groundbreaking type of superconducting qubit known as the Schrödinger cat qubit ‍⬛. Unlike traditional superconducting systems, these cat qubits uniquely possess the remarkable capability to autonomously execute quantum error correction!With a diverse team of over 140 exceptional individuals from more than 20 countries, we share a common ambition: to transform the landscape of computing with a practical fault-tolerant quantum machine. Are you prepared to embrace unprecedented challenges and play a pivotal role in redefining technology? Join us, and together, let's shape the future of quantum computing!The Calibration Team is dedicated to automating the calibration of our cat-qubit quantum processing unit (QPU) to enhance its performance and ensure the processor remains in optimal operational condition.In the role of Calibration Workflow Engineer, you will be responsible for designing and implementing the primary controller that conducts QPU performance tests and manages the automatic recalibration Directed Acyclic Graph (DAG). You will establish policies and quality controls while providing robust workflows for both automatic recovery and manual intervention.Collaboration will be key as you work closely with quantum experimentalists, backend engineers, and the analytics team to ensure calibrations are reliable, auditable, and ready for production.

About the Role alice-bob is looking for a Marketing Operations Intern (H/F) to join the team in Paris. This internship offers practical experience in marketing operations alongside a group focused on new ideas and growth. The intern will work closely with the marketing team, assisting on projects and supporting ongoing initiatives that drive marketing efforts forward.

alice-bob is seeking a Legal Intern (H/F) to join the Paris office. This internship provides hands-on experience in legal work, offering the chance to collaborate with seasoned legal professionals on daily tasks. What you will do Carry out legal research on a range of topics Draft legal documents and assist with preparing contracts Support compliance efforts and help uphold regulatory standards Who should apply This role fits law students or recent graduates who want to develop practical legal skills and work directly with a Paris-based legal team.

About the Internship alice-bob is looking for a Funded Project Management Intern in Paris. This paid internship offers a chance to work directly with experienced project managers and contribute to projects that aim to push boundaries in their field. What You Will Do Support project teams on active assignments Learn project management methods and tools through real tasks Help organize, track, and report on project progress Contribute ideas and effort to projects that challenge conventional approaches What You Will Gain Hands-on experience in project management Guidance from seasoned professionals Exposure to innovative work in a collaborative environment Skill development and practical knowledge This internship is based in Paris and is funded.

Join Alice & Bob, a pioneering company on a mission to develop the first universal, fault-tolerant quantum computer capable of tackling some of the world's most challenging problems.We are focused on creating a revolutionary superconducting qubit known as the Schrödinger cat qubit ‍⬛. Unlike traditional superconducting platforms, our cat qubits possess the remarkable capability of implementing quantum error correction autonomously!Our vibrant team consists of over 140 brilliant individuals from more than 20 different countries, all driven by a common goal: to transform computing with a practical, fault-tolerant quantum machine. Are you prepared to face unprecedented challenges and help us reshape the future of technology? If so, we invite you to join us on this exciting journey!In the context of deploying and operating an early-stage fault-tolerant quantum computer at a key client site, the Technical Account Manager – Quantum Computing will ensure operational excellence, system reliability, and uninterrupted service.Reporting directly to the VP of Business, you will collaborate closely with engineering, R&D, product, and tech operations teams to guarantee the daily performance of the quantum system, seamless client operations, and ongoing enhancement of service delivery.

Join us as the Conference Coordinator for the 2026 DATE Conference in the vibrant city of Paris! This pivotal role involves coordinating event logistics, managing schedules, and ensuring a seamless experience for all attendees. You will engage with industry leaders and stakeholders to curate an unforgettable event.

At Alice & Bob, we are on a groundbreaking journey to create the world’s first universal, fault-tolerant quantum computer, designed to tackle some of humanity's most complex challenges.Our innovative approach leverages a unique superconducting qubit known as the Schrödinger cat qubit ‍⬛, which possesses the remarkable capability to autonomously execute quantum error correction, setting us apart from traditional superconducting platforms.We pride ourselves on our diverse team of over 140 talented individuals hailing from more than 20 countries, all working collaboratively to transform computing with a practical fault-tolerant quantum machine. If you're eager to embrace extraordinary challenges and be part of a technology revolution, we invite you to join us in shaping the future of quantum computing!