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Photonics Packaging & Cryogenic Integration R&D Engineer

Quandela

# Photonics Packaging & Cryogenic Integration R&D Engineer

> Quandela · Massy, France (Hybrid) · Full-time · Posted 2026-11-05

**Workplace:** hybrid

**Department:** Research

## Description

  • Quandela is a global leader in quantum computing, designing, building, and delivering cutting-edge quantum solutions for research and industry.
  • Its offerings include a very energy-efficient quantum computers for data centers, full-stack quantum computing solutions accessible via the cloud, and algorithm access services for academic and industrial customers.
  • Following a pragmatic, step-by-step roadmap, Quandela has been deploying industrial-grade systems since 2023 while developing future generations of fault-tolerant quantum computers capable of scaling through the integration of thousands of photonic components.
  • Quandela is committed to making quantum computing accessible to all in order to address the most complex industrial and societal challenges.
  • Learn more at: [Quandela | Leading Photonic Quantum Computing Solutions](http://www.quandela.com/)

### **Description of the Team/Project**

We are looking for a **Photonics Packaging & Cryogenic Integration Engineer** to contribute to the development and industrialization of our photonic quantum systems.

You will work on the integration of **single-photon sources, photonic integrated circuits and optical/electromechanical assemblies**, with a strong focus on miniaturization, automation and operation under cryogenic conditions.

This is a highly hands-on role at the intersection of **photonics, electronics, mechanics, automation and experimental physics**.

You will contribute across the full development cycle: **design, prototyping, assembly, testing, optimization and transfer toward industrial-scale production**.

### **Your Key Responsibilities:**

  • Design and develop packaging and integration solutions for photonic and quantum devices.
  • Integrate single-photon sources, photonic integrated circuits and optical components into complete systems.
  • Develop and optimize optical coupling strategies, including fiber coupling and direct chip-to-chip integration.
  • Design, build and assemble precision positioning and alignment systems, including nano-positioning stages and multi-axis platforms.
  • Develop experimental setups operating under **cryogenic conditions, typically in the 2–4 K range**.
  • Design mechanical parts and assemblies using CAD tools.
  • Contribute to electronics development, including PCB design, instrumentation and control systems.
  • Automate alignment, test and characterization processes using Python, C++, Rust or similar programming languages.
  • Work with microcontrollers, FPGA-based systems or other hardware-control architectures when relevant.
  • Build, test and iterate rapidly on prototypes, including using 3D printing and other rapid prototyping techniques.
  • Perform test and measurement activities to characterize system performance and identify failure modes.
  • Contribute feedback to the design of photonic chips and single-photon sources based on integration and testing results.
  • Support the transition from laboratory prototypes to repeatable and scalable manufacturing processes.
  • Document designs, experiments, procedures and lessons learned, and actively share knowledge within the team.

## Requirements

### _What we're looking for:_

You should ideally bring

  • A PhD in **electrical engineering, mechanical engineering, applied physics, condensed matter physics, solid-state physics, optics, photonics or a related field**.
  • Strong hands-on experience building and testing scientific or high-precision equipment.
  • Experience with photonics, optomechanics, semiconductor devices, cryogenics or precision engineering.
  • Familiarity with optical alignment, fiber coupling and/or photonic packaging.
  • Experience with mechanical design and CAD tools.
  • Good understanding of electronics, instrumentation and test equipment.
  • Programming skills in Python, C++, Rust or similar languages for automation and hardware control.
  • Experience working with multidisciplinary systems combining optics, mechanics, electronics and software.
  • Strong experimental problem-solving skills and the ability to iterate quickly from concept to prototype.
  • Excellent written and spoken English, with the ability to produce clear technical documentation and collaborate in an international environment.

**Nice to Have**

Experience in one or more of the following areas would be particularly valuable:

  • Cryogenic systems and experiments at very low temperatures.
  • Photonic or optoelectronic packaging.
  • Chip bonding, indium bump bonding or related micro-assembly techniques.
  • Pick-and-place systems or automated precision assembly.
  • Nano-positioning and multi-axis motion control systems.
  • Robotics or computer vision.
  • FPGA or microcontroller development.
  • PCB design using KiCad or similar tools.
  • Finite-element simulation using tools such as ANSYS or COMSOL.
  • Semiconductor or quantum photonics environments.

More than a specific academic background, we are looking for someone who enjoys building complex scientific systems and solving problems directly at the hardware level.

## Benefits

  • Competitive salary, flexible based on your experience
  • Company savings plan
  • 100% health coverage (Alan)
  • 50% transport reimbursement or sustainable mobility bonus
  • Meal vouchers (Swile), Gymlib fitness support
  • Childcare assistance & referral bonuses (€1,000–€2,000)

### What we offer

  • A meaningful role with real ownership, from day one
  • A team eager to collaborate and grow with you
  • A hybrid work model (3-4 days/week onsite in Massy, 1 day in Paris or 1 to 2 days remotely)
  • Daily exposure to the entire quantum stack — from high-level APIs to low-level firmware, and everything in between.

### **Process**

  • Talent Acquisition Interview (30' - 45')
  • Hiring Managers Interview (45')
  • Use Case (a live use case or one to be prepared at home and presented afterward)
  • Meeting with the teams
  • 2 to 3 reference check
  • Offer

_(This process is provided for guidance only and may evolve depending on the roles)_

At Quandela, we believe that the strength of our team is the plurality of experiences, perspectives, and journeys. We are committed to building a respectful, inclusive, and welcoming work environment. All applications are welcome.

## Apply

[Apply at Quandela](https://apply.workable.com/quandela/j/3230DA3516/apply)

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