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Thales

Global defense and aerospace electronics

Optoelectronic Technology Demonstrator Engineer for Signal Processing

Hardware Systems IntegrationConfirmed live in the last 24 hours
Full-timePalaiseau, FranceNo salary listedHybrid

About the Job

Requirements

  • A doctorate (Bac+8) in physics (optics, quantum physics, or optoelectronics), or an equivalent profile.
  • Experience with common low-noise lasers, including single-frequency solid-state lasers and external-cavity semiconductor lasers.
  • Experience with common optoelectronic components, including modulators, detectors, fibers, and fiber-optic components.
  • Experience with laser or microwave-source stabilization techniques, including modulation, modulation transfer, optical phase-locked loops, and Pound–Drever–Hall techniques.
  • Ability to implement analog, digital, or mixed signal processing and control architectures, including software-defined radios such as RedPitaya or Kohéron, direct digital synthesis architectures, and familiarity with FPGA programming.
  • Experience with Python and MATLAB for simulation, control, and data processing.
  • Experience with electronic design software such as LTspice and mechanical design software such as FreeCAD and SolidWorks.
  • English proficiency at C1 level.

Responsibilities

  • Contribute with researchers to the design, construction, and testing of technology demonstrators that validate optoelectronic architectures under representative conditions.
  • Design and build optical, optoelectronic, and electronic subassemblies, accounting for thermal and mechanical constraints and the demonstration objectives, such as laboratory stability, transportability, or operation under vibration.
  • Integrate optical, optoelectronic, and electronic systems, including software, into advanced measurement benches for research and demonstrator performance validation.
  • Design laser stabilization architectures and optoelectronic and electronic control circuits.
  • Prepare clear and precise specifications for high-technology subcontractors.
  • Integrate architectures while accounting for mechanical constraints, including size and vibration, and thermal constraints.
  • Develop autonomous hardware and software control systems.
  • Design low-noise analog and digital electronic circuits, including microcontroller- and FPGA-based circuits, and arrange for their fabrication.
  • Characterize and validate the operation of architectures through measurements of intensity and phase noise, frequency stability, and temperature.

Desired Qualifications

  • Scientific rigor, teamwork, and curiosity are valued attributes.

About the Company

Thales

Global defense and aerospace electronics

Thales designs and delivers critical technology for aerospace, defense, and digital security. Its products include electronics, software, and data-security systems that power air travel, payments, and modern military platforms, by integrating hardware and software to build systems such as avionics, radar, cybersecurity, and secure communications that collect sensor data and protect networks. It stands out through deep industrial experience, end-to-end solutions across defense, aerospace, and cybersecurity, and a focus on AI and quantum tech, aided by strategic acquisitions and partial state ownership. Its goal is to provide reliable, secure, and connected technologies that support national security, public safety, and everyday life by solving complex security and connectivity challenges.

Company size
10,001+
Company stage
IPO
Headquarters
Meudon, France
Founded
1893

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