Barcelona
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Senior Quantum Calibration Engineer
Description
Qilimanjaro Quantum Tech is seeking a Senior Quantum Calibration Engineer to support the calibration, control, and characterization of superconducting quantum processors. This role focuses on the experimental operation of multi-qubit devices, with work expected to be distributed between transmon- and fluxonium-based quantum architectures.
We are particularly interested in candidates with strong experience in transmon-based systems, complementing our existing expertise. The ideal candidate is motivated to improve the performance, stability, and reproducibility of established quantum hardware, while contributing positively to a collaborative and technically rigorous R&D environment.
Key Responsibilities
- Calibrate and operate multi-qubit superconducting quantum processors based on established digital or analog architectures.
- Develop, implement, and maintain calibration procedures for qubit control, readout, and multi-qubit operations.
- Perform systematic characterization of device performance, stability, and crosstalk.
- Carry out measurements on both transmon- and fluxonium-based superconducting circuits.
- Collaborate closely with design, fabrication, integration, and software teams to ensure efficient experimental workflows.
- Document calibration procedures, experimental results, and best practices to support reproducibility and scalability.
Minimum requirements
- PhD in Physics or a closely related field, with a strong focus on superconducting quantum circuits.
- Demonstrated experience in quantum measurement and calibration of transmon qubits.
- Strong analytical and problem-solving skills, with a systematic approach to experimental work.
- Excellent communication and documentation skills.
Preferred Skills
- Strong experience calibrating and measuring multi-qubit transmon-based quantum processors.
- Experience measuring fluxonium-based superconducting circuits.
- Experience with tunable couplers.
- Familiarity with calibration workflows for digital quantum architectures.
- Proficiency in Python or similar programming languages for experiment control and data analysis.
- Experience with designing and/or fabricating superconducting devices.
- Ability to contribute to mentoring, knowledge transfer, and healthy team dynamics.
Additional Information
The main working location is Barcelona, with a significant onsite presence expected and some flexibility for remote work during the week. Occasional work at other locations where quantum systems are installed may be required.
Please mention your availability dates and whether you require an EU work permit in your application.
Why don’t you join us? 🥇
We offer:
- A unique opportunity to work on real superconducting quantum hardware
- Strong mentorship and technical growth
- Hands-on lab + design experience in Barcelona
- Competitive salary
- Clear development path toward Quantum Hardware CAD Engineer
Benefits:
🏥 Private health insurance
💳 Cobee flexible compensation (transportation, meals, and childcare support)
⏰ Flexible working hours
🏡 Hybrid work model
❤️Diversity and inclusion:
At Qilimanjaro, inclusion and equal opportunities are part of our people-centric value. We are committed to creating a workplace where everyone feels valued and empowered to contribute, learn, and belong.
GDPR (General Data Protection Regulation):
DATA CONTROLLER: QILIMANJARO QUANTUM TECH S.L., B67429670, Carrer de Veneçuela, 74, 08019 Barcelona (BARCELONA), Data Protection Officer: qilimanjaro@delegado- datos.com.PURPOSES: Participation in recruitment processes and reference verification.LEGAL BASIS: Implementation of pre-contractual measures.DISCLOSURES: None are an ticipated.DATA RETENTION: For the duration of the selection process.RIGHTS: You may exercise your rights of access, rectification, erasure, restriction, and data portability with the data controller. In case of any disputes, you may contact the AEPD (www.aepd.es).
