Senior Integration & Yield Engineer, Alice & Bob
Superconducting Quantum Circuits
Office located in Aubervilliers, Paris
Fault-tolerant quantum computing developer
Open for applications
Fault-tolerant quantum computing developer
101-200 employees
Open for applications
Office located in Aubervilliers, Paris
101-200 employees
Company mission
To create a future where humans play by the same rules as nature.
Role
Who you are
- Master's degree or Ph.D. in Physics, Materials Science, or a related field
- 3+ years of hands-on experience in semiconductor or superconducting circuit nanofabrication or process integration
- Proven expertise in yield engineering, SPC, DOE, and statistical analysis tools
- Proficiency in Python scripting to adapt and extend tools connecting design and fabrication workflows
- Strong problem-solving mindset and command of root cause analysis methodologies (5 Whys, FMEA, Ishikawa)
- Excellent communication skills and the ability to work effectively in a cross-disciplinary environment
- Experience in the fabrication or characterization of superconducting circuits, or in cryogenic testing is a plus
- This list is a guide, and we'd love to receive your application even if you think you're only a partial match
What the job involves
- We are seeking a Senior Integration & Yield Engineer to join the Foundries & Process Integration team within the Quantum Hardware & Infrastructure department
- The role sits at the interface between qubit design and the chip manufacturing teams. Its purpose is twofold: ensure that device designs translate reliably into high-performing fabricated circuits, and provide the data foundation for process improvement decisions
- You will own yield monitoring across our fabrication flows, lead the analysis of fabrication and test data, and maintain the interfaces between design and manufacturing — supporting the scale-up from tens of qubits to a few hundred, and enabling our path toward fault-tolerant quantum computing
- Yield engineering & data analysis
- Own yield monitoring across fabrication flows: define metrics, build automated dashboards (wafer reports), and provide real-time visibility of fab performance and yield
- Lead root cause analysis of systematic and random yield detractors, in collaboration with the chip manufacturing teams
- Perform advanced statistical analysis (using Python/JMP) to ensure process stability and control variability
- Develop strategies to reduce inductance/frequency non-uniformity within and across wafers, improving the consistency of qubit performance (frequency targeting, coherence times)
- Process Integration
- Define and maintain robust integration flows of POR (process of reference), ensuring design-to-fab alignment
- Establish Design for Manufacturability (DFM) guidelines
- Document and maintain reference fabrication flows, yield dashboards, and process KPIs to support process reviews
- Design-to-fabrication interface
- Own the look-up tables (LUT) linking design parameters to Josephson junction fabrication, and maintain their accuracy as fabrication processes evolve
- Test and implement Design Rule Manual (DRM) extensions in collaboration with the design and fabrication teams, and establish Design for Manufacturability (DFM) guidelines
- Translate device designs into fabrication-ready wafer layouts (wafer layout generation), and develop Python-based tools to automate the design-to-wafer pipeline and reduce manual handoff errors
- Failure analysis coordination & continuous improvement
- Coordinate the investigation of device failures at room and cryogenic temperatures using electrical test data, inline metrology, and advanced microscopy (SEM, AFM)
- Lead corrective and preventive actions using structured problem-solving methodologies (5 Whys, Ishikawa)
Application process
- Screening Call with Alexandra, Talent Acquisition Specialist (30 min)
- Hiring Manager Interview with Alireza (45 min)
- Technical Interview/Presentation with the Team (120 min)
- Leadership Team Interview (45 min)
- Fit Interview (45 min)
- Reference check
Our take
Creating top-tier quantum hardware, including qubits and control electronics, presents a significant hurdle for those pursuing high-power quantum computing. Various qubit technologies exist, each boasting unique advantages and drawbacks, with the most recent research in the sector involving the pursuit of a scalable, fault-tolerant qubit technology.
Joining this pursuit is Alice & Bob, a company specialising in "cat qubits". This technology, named for Schrodinger’s infamous cat, is able to reduce hardware requirements, promising fault-tolerant quantum computing at scale. With over 150 employees and pioneering experimental results, Alice & Bob has notable achievements, including the development of its 16-bit Helium 1 quantum processing unit.
Recognised for its groundbreaking work, Alice & Bob recently received a hefty innovation grant that will support its work moving forwards. Through projects like "Cat Factory," in collaboration with academic partners, the company aims to optimise quantum computation infrastructure, making it more cost-effective and market-ready and ultimately building "the first universal quantum computer”.
Kirsty
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 6 rounds)
Mar 2026
$3.9m
GRANT
Jan 2025
$116.5m
SERIES B
Total funding: $160.6m
Company HQ
Javel, Paris, France
Leadership
Théau Peronnin
(Co-Founder & CEO)Interned at Quantum Electronics Group as part of a Masters in Quantum Physics. Then did PhD study at Quantum Circuit Group before founding the company.
Raphaël Lescanne
(Co-Founder & CTO)Co-founded Alice & Bob in 2020 alongside Théau.
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