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C12 Quantum Electronics Logo C12 Quantum Electronics · IT - Software Development

Systems Engineer MBSE

France, Paris · Job Posted February 17, 2026
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Job Description

As a Systems Engineer, MBSE at C12, reporting directly to the Head of Engineering, you will play a central role in bridging fundamental research and industrial-grade engineering. You will work in central Paris at the intersection of theoretical physics and large-scale hardware development, collaborating closely with physicists, engineers, software and product teams. Your mission is to shape, structure, and guide complex quantum hardware systems from early research concepts through to validated, scalable architectures, ensuring that cutting-edge science is translated into robust and manufacturable solutions.

Job Responsibility

  • Owning the MBSE system model as the source of truth, including governance for model quality, traceability, and change control
  • Defining and maintaining a system-level perspective, ensuring alignment with scientific
  • Defining modelling conventions, abstraction levels, and acceptance criteria for model contributions
  • Ensuring bidirectional traceability between requirements, architecture, analysis, and verification evidence
  • Embracing a unique opportunity to pioneer systems engineering methods in quantum computing, developing practices in largely uncharted territory
  • Working closely with product, design, software, R&D, partnerships, and supply teams to define, refine, and document system and subsystem requirements
  • Owning the technical decision record at system level, ensuring decisions are consistent with models, experimental data, and approved assumptions
  • Contributing to the definition of the hardware architecture roadmap across fabrication, testing, integration, validation and scalability
  • Supporting informed make-or-buy decisions with partners and suppliers
  • Providing impact analysis for proposed changes, and ensure changes follow agreed review and approval paths
  • Leading system-level trade studies with explicit criteria, quantified assumptions, and documented decisions, including rationale, risks and follow-up actions
  • Supporting the design and specification of quantum computer systems, identifying key system bottlenecks, technological barriers to industrialisation, and trade-offs
  • Collaborating with physicists to review technical papers and research results, translating scientific insights into system trade studies and initial performance requirements
  • Ensuring research concepts are evaluated against manufacturability and lifecycle constraints at an early stage
  • Staying current with advances in quantum computing, quantum error correction, and quantum applications

Requirements

  • Master’s degree in Engineering, Physics, or a related field
  • 8+ years of experience in systems engineering within engineering-intensive industries such as aerospace, automotive, nuclear, or equivalent
  • Strong rigor and discipline in system definition, analysis, validation and documentation
  • Proven experience taking complex hardware systems from early concept through integration, validation, and iteration under technical uncertainty
  • Proven experience with Model Based Systems Engineering, including hands-on experience with MBSE platforms, system modeling, simulation, and analysis tools
  • Solid background or understanding of physics, with the ability to engage deeply with scientific concepts and research
  • Ability to operate in environments with incomplete data, evolving requirements, and high technical risk

What we offer

  • Stock options for every employee (BSPCE/ESOP)
  • Two incredible office spaces in the heart of Paris (both next to the famous Panthéon!)
  • Sponsored trip to conferences around the world
  • A highly dynamic international team
  • Swile meal vouchers
  • Vibrant office culture (team lunches, offsite events, Friday breakfasts..)
  • Mental health support with moka.care
  • Training budget/ Annual Learning & Development Allowance
  • Sabbatical leave (after 2 years in the company)
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