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Senior Superconducting Circuit Design Engineer

Hybrid in Barcelona·Full-time·Added 1 month ago (last checked 19 Oct)

Overview

Work mode
Hybrid, Barcelona
Contract
Full-time
Experience
Senior level
Education
Doctorate
Benefits
Private health insurance, flexible pay plan

Visa options

  • The ad rules out sponsorship

    The advert says visa sponsorship isn’t available for this role.

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Skills

Nice to have

Requirements

What we're looking for

  • PhD in Physics, Electrical Engineering, or a closely related field, with a strong focus on superconducting quantum circuits or circuit QED.
  • Solid theoretical understanding of superconducting qubits and their electromagnetic environments.
  • Proven ability to work at the interface between theory and experimental constraints.
  • Strong analytical skills and scientific rigor.
  • Excellent communication and documentation skills.

Nice to have

  • 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.

Pay & benefits

What you'll get

  • 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

🏥 Private health insurance

💳 Cobee flexible compensation (transportation, meals, and childcare support)

⏰ Flexible working hours

🏡 Hybrid work model

The role

Qilimanjaro Quantum Tech is seeking a Senior Superconducting Circuit Design Engineer to strengthen our hardware R&D activities in analog quantum computing. This role focuses on the analysis, modeling, and design of superconducting quantum circuits based on circuit quantum electrodynamics (cQED), with particular emphasis on fluxonium-based architectures.

What you'll do

Depending on the candidate’s profile, responsibilities may include a subset of the following:

  • Develop theoretical models of superconducting quantum circuits within the cQED framework.
  • Analyze static and dynamical properties of fluxonium-based and related superconducting circuits.
  • Perform analytical and/or numerical simulations to extract relevant circuit parameters and predict device behavior.
  • Contribute to the design and optimization of superconducting circuits for quantum computing applications.
  • Collaborate closely with measurement, fabrication, and integration teams to ensure consistency between theoretical models and experimental implementations.
  • Participate in technical discussions and contribute to internal documentation supporting long-term hardware R&D strategies.

How you'll work

The main working location is Barcelona. The role requires a significant onsite presence, with some flexibility for remote work during the week.

Please mention your availability dates and whether you require an EU work permit in your application.

description

We are open to two complementary senior profiles:

(i) a purely theoretical cQED expert, focused on modeling and understanding superconducting circuits for quantum computing applications, and

(ii) a hybrid profile combining strong theoretical knowledge with experience in numerical simulation of physical circuits.

The exact scope of responsibilities will be adapted to the candidate’s expertise and background.

About Qilimanjaro Quantum Tech

Qilimanjaro Quantum Tech is a quantum computing company based in Barcelona, Spain, that develops analog, full-stack quantum computers. The company focuses on building quantum data centers and offers on-premises deployment solutions, with deployments at the Barcelona Supercomputing Center and with TII. Their technology aims to address sustainability and efficiency challenges in computing by providing quantum solutions that consume significantly less energy than classical supercomputers.

Industry
Quantum Computing Hardware
Headquarters
Barcelona, Spain
In Spain
Barcelona

Good to know if you are moving

  • All current open roles are based in Barcelona, Spain, with hybrid (on-site and remote) work options.
  • The company offers internship opportunities for those starting their career in quantum engineering.
  • Roles span quantum engineering, fabrication, electronics, cryogenics, and executive support, indicating a multidisciplinary team.
  • The company has deployments at the Barcelona Supercomputing Center, providing access to advanced computing infrastructure.
  • The company is focused on analog quantum computing, a niche area within the quantum technology sector.

In their own words

Additional information

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.

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).

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