About Black Semiconductor

Black Semiconductor develops graphene-based photonic solutions for the semiconductor industry, combining electronic computing with photonic communication to enhance chip connectivity and energy efficiency. The company is pioneering graphene photonic solutions designed to revolutionize chip connectivity.

The Role

Photonic Component and Circuit Designer position involving design and simulation of high-speed WDM/DWDM optical transceiver systems. Bridge component-level photonic design with system architecture to develop integrated solutions.

What You Will Do

• Design and benchmark passive low-loss components for WDM systems

• Develop active graphene-based components

• Execute photonic circuit-level simulations for device optimization

• Apply fabrication-tolerant design strategies

• Design test structures and implement design-for-test (DFT) methods

• Perform component and circuit layouting

• Deliver PDK-ready components for scalable integration

Requirements

• Required: M.Sc. or Ph.D. in Electrical Engineering, Optical Engineering, Physics, or related field

• 3+ years of experience in integrated photonics device physics and modeling

• Design/simulation expertise with low-loss passive and active components

• Proven device development meeting specifications

• Test structure development experience

• Background in integrated photonics platforms (preferably SiN)

• Proficiency with Lumerical products (Mode, FDTD, Interconnect)

• Python programming and Git familiarity

Nice to Have

• Multiplexing device knowledge (CMZI, AWG, ring resonators)

• Optical link/circuit simulation experience

• DFM and electronic-photonic co-design exposure

• PDK development background

• Layout tool proficiency (gdsfactory, Nazca, OptoDesigner)

• Photonic device characterization lab experience

What We Offer

• People Over Processes culture

• Work-life harmony

• Continuous learning opportunities

• Comprehensive benefits including insurance and pension

• Virtual stock options

• Inclusive collaboration environment

Location

Full-time role in Aachen, Germany.