Quantum Software Engineer

hace 2 semanas

Madrid, Madrid, España Multiverse Computing A tiempo completo

We are looking to fill this role
immediately
and are reviewing applications daily. Expect a fast, transparent process with quick feedback.

Why join us?
We are a European deep-tech leader in quantum and AI, backed by major global strategic investors and strong EU support. Our groundbreaking technology is already transforming how AI is deployed worldwide — compressing large language models by up to 95% without losing accuracy and cutting inference costs by 50–80%.

Joining us means working on cutting-edge solutions that make AI faster, greener, and more accessible — and being part of a company often described as a "quantum-AI unicorn in the making."

We offer

  • Competitive annual salary starting from €45,000, based on experience and qualifications.
  • Two unique bonuses: signing bonus at incorporation and retention bonus at contract completion.
  • Relocation package (if applicable).
  • Fixed-term contract ending in June 2026.
  • Hybrid role and flexible working hours.
  • Be part of a fast-scaling Series B company at the forefront of deep tech.
  • Equal pay guaranteed.
  • International exposure in a multicultural, cutting-edge environment.

As a Quantum Computing Engineer (Fixed term), you will

  • Join a world-class team of Quantum experts with an extensive track record in both academia and industry.
  • Work with Fortune-500 customers from government and private sectors.
  • Collaborate with the founding team in a fast paced startup environment.
  • Contribute to designing and improving Multiverse's codebase.
  • Design and implement new quantum algorithms.

Required Qualifications

  • 2+ years experience in similar positions.
  • Masters degree in Quantum Physics, Quantum Engineering, or related field.
  • Knowledge of quantum computing algorithms, particularly hybrid and gate-based techniques.
  • Advanced knowledge of Python and related scientific computing tools.
  • Experience with quantum computing SDKs (Qiskit, Pennylane, or others).
  • Ability to work with a diverse team of people, both in-person and through online resources.
  • Perfect command of English language.

Preferred Qualifications

  • PhD in Quantum Physics, Computer Science, or related field.
  • Knowledge of Machine Learning or Optimization algorithms
  • Experience using git, unit testing, and docker.
  • Experience writing patent applications and/or grant proposal

About Multiverse Computing
Founded in 2019, we are a well-funded, fast-growing deep-tech company with a team of 180+ employees worldwide. Recognized by CB Insights (2023 & 2025) as one of the
Top 100 most promising AI companies globally
, we are also the largest quantum software company in the EU.

Our flagship products address critical industry needs:

  • CompactifAI → a groundbreaking compression tool for foundational AI models, reducing their size by up to 95% while maintaining accuracy, enabling portability across devices from cloud to mobile and beyond.
  • Singularity → a quantum and quantum-inspired optimization platform used by blue-chip companies in finance, energy, and manufacturing to solve complex challenges with immediate performance gains.

You'll be working alongside world-leading experts in quantum computing and AI, developing solutions that deliver real-world impact for global clients. We are committed to an inclusive, ethics-driven culture that values sustainability, diversity, and collaboration — a place where passionate people can grow and thrive. Come and join us

Come and join our multicultural team

5 locations

+27 languages

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