RF Optical Engineer (M/F)

Overview

As part of the development of its R&D activities on micro-LEDs (µLEDs) for high-speed optical communication applications, our company is strengthening its teams and recruiting an RF Optical Engineer.

As the company's first RF expert, you will be the technical lead in this discipline and contribute to structuring the methods, tools, and standards for RF characterization applied to optoelectronic components. You will work within the Instrumentation R&D department in close collaboration with the components, epitaxy, processes, and optical characterization teams.

Main missions

• Development of RF characterization methodologies
  • Define, implement and validate RF measurement protocols on µLEDs and test structures.
  • Develop calibration and de-embedding techniques adapted to high-frequency measurements.
  • Design and characterize dedicated test structures.
  • Ensure the reliability, traceability and reproducibility of measurements.
• Component Modeling and Analysis
  • Extract the equivalent electrical parameters of the µLEDs from the RF measurements.
  • Develop electrical models for simulation tools.
  • Study the frequency limitations and propose areas for optimization.
  • Correlate RF results with electro‑optical performance.
• Optoelectronic characterization
  • Perform electro‑optical bandwidth measurements.
  • Analyze the impact of RF interconnections on optical performance.
  • Collaborate with optical teams to optimize RF‑optical coupling.
• Data analysis and reporting
  • Exploit, analyze and synthesize experimental results.
  • Write technical reports and document protocols.
  • Present the results and recommendations to internal teams and partners.
• Innovation and intellectual property
  • Identify opportunities for technological valorization.
  • Contribute to the drafting of patents.
  • Conduct technological monitoring of RF, optoelectronic and datalink technologies.
  • Participate in scientific conferences and events.
• Structuring RF expertise
  • Define best practices and standards for RF characterization.
  • Train and support technical teams.
  • Participate in the selection and qualification of RF equipment.
  • Contribute to the development of the characterization laboratory.

Required profile

• Training
  • Minimum Bac+5 (engineering school or Master's degree) in electronics, microwaves, optoelectronics or applied physics.
• Experience
  • Minimum 5 years of experience in RF characterization of semiconductor, optoelectronic, photonic or MMIC components.
  • Proven mastery of RF measurements on vector network analyzer (VNA), calibration and de‑embedding techniques.
• Technical skills
  • Expertise in high‑frequency RF characterization.
  • Knowledge of optoelectronic components and electro‑optical measurements is appreciated.
  • Experience in electrical modeling and exploitation of experimental data.
  • Knowledge of physical characterization equipment (SEM, FIB) is appreciated.
  • Fluent professional English.
  • Autonomy and ability to structure a new activity.
  • Scientific rigor and analytical skills.
  • Initiative and ability to propose innovative solutions.
  • Ability to work in a multidisciplinary environment.
  • Excellent communication and knowledge transfer skills.
  • Team spirit and a sense of collaboration.

Working conditions and environment

• Activity in RF laboratory and cleanroom.
• Handling of sub‑millimeter components under RF probes.
• Occasional travel within France and internationally.
• Collaboration with international teams.

Position: Microelectronics EngineerType of contract: CDILocation: ChampagnierWork schedule: Full time, Monday to Friday, daytime hoursPublished on: 19/06/2026