At NcodiN, we are redefining the future of AI computing. Our breakthrough optical interposer shatters the limits of system integration, enabling the next generation of AI processors to scale beyond the copper wall. With the world’s smallest laser integrated on silicon, we unleash the full potential of AI, setting a new industry standard for performance and efficiency.

Joining NcodiN today means becoming part of a bold, fast-growing company backed by industry leaders. We offer a dynamic environment where autonomy, creativity and innovation thrive. Here, respect, meritocracy, and team spirit drive success, ensuring that every individual grows while we push technology forward together.

As we scale rapidly, we are looking for visionary, adaptable minds ready to pioneer new solutions and shape the future of AI. If you thrive in a fast-paced, high-impact environment, join us and be part of the revolution.

Job description:

Location: 10 Boulevard Thomas Gobert, 91120 Palaiseau (France)

Start date: February, 2026

We are looking for a Senior Electronic System Engineer to ensure the development of our high-speed optical links and their integration into electro-optical systems.

If you are curious about the dynamics of a Deeptech startup dealing with scientific innovation, solving challenging technical problems and doing impactful work, consider joining the team!

Responsibilities

System Architecture & Design

• Design RF system architectures for high-speed optical links, ensuring signal integrity and performance optimization.

• Define and specify electrical interfaces between optical components (lasers, detectors) and electronic subsystems.

• Develop system-level specifications that bridge component-level performance with integrated link requirements.

• Design and optimize laser driver circuits and photodiode readout electronics for high-performance optical links.

Testing & Validation

• Conduct system-level characterization and performance verification against specifications

• Participate in the development and validation of models for architecture-level simulations.

• Analyze test results to identify performance bottlenecks and drive design improvements

Cross-functional Collaboration

• Work closely with photonics engineers to translate optical component specifications into system-level electrical requirements

• Collaborate with product team to ensure technical feasibility and manufacturability of designs

• Support integration activities and provide technical expertise during product development phases

Requirements

Qualifications

• Education: Engineer, Master's degree or PhD in Electrical Engineering, Electronics, or related field

• Experience: We are looking for a Senior profile (5-10 years of experience) with a strong industrial mindset, and relevant experience in electronic system design. Preferably in optical communications or high-speed interconnect systems or related field. While a PhD is valued, it is not mandatory if compensated by significant industrial R&D experience.

Technical Skills:

• RF Systems Engineering: Deep understanding of high-frequency circuit design and modelling, signal integrity, and electromagnetic compatibility

• Microelectronics: Proficiency in analog and mixed-signal circuit design, including amplifiers, filters, and high-speed interfaces

• Laser Drivers & Photodiode Readout: Hands-on experience designing driver circuits for laser diodes and transimpedance amplifiers for photodetectors

• System Integration: Ability to define and validate electrical interfaces between subsystems in complex integrated systems

• Testing & Measurement: Experience with high-speed oscilloscopes, network analyzers, and optical test equipment

• Knowledge of Python coding language is a plus.

Soft Skills:

• Strong problem-solving and analytical abilities.

• Excellent attention to detail and commitment to quality.

• Effective communication skills for collaborating with cross-functional teams.

• Ability to work independently and participate toin multiple projects simultaneously.

• Flexibility, polyvalency and open-mindedness.

• English professional proficiency.

• French is a plus.

Benefits

• Comprehensive Health Care Plan

• Life Insurance

• Meal vouchers

• Commuter Benefit (50% refund of public transportation pass)

• Generous Time Off (Vacation, Sick & Public Holidays)

• Flexible, hybrid workplace model

• Stock Option Plan

Actual pay will be based on several factors including work experience, location and education.

We strongly value a heterogeneous environment to bring perspective, experience and skills to the table, leading to innovation and creativity.

You don’t check all the boxes? Please apply anyway, and we’ll be happy to consider it.