The semiconductor industry’s growing demand for more powerful chips with higher bandwidth and lower power finds its solution in our technology. We connect chips to high-throughput, low-delay computing networks. The key lies in harnessing the physical properties of graphene to combine electronic computing with photonic communication, allowing countless chips to interact almost as if they were one. Our graphene photonic innovation increases computing power and efficiency to a new order of magnitude

In short, we connect chips to create powerful and energy-efficient networks, overcoming connectivity limitations in the semiconductor industry. We deliver the graphene solution

Black Semiconductor is seeking a Photonic Designer: Multiplexing EPIC Designer (f/m/d) to design and simulate high-speed WDM/DWDM optical transceiver systems, bridging component-level photonic design with system-level architecture. You will be responsible for developing integrated solutions that span electronic-photonic co-design, multi-domain modeling, and system performance optimization

• Design WDM/DWDM multiplexers and system-level link photonic interfaces
• Lead co-design and co-simulation of Electronic-Photonic Integrated Circuits (EPICs)
• Integrate passive and active photonic components into system-level models
• Develop and analyze link budgets, signal integrity, and performance trade-offs
• Perform multi-domain simulation across optical, electrical, and thermal domains
• Innovate in optical I/O coupler design, including fiber-to-chip and chip-to-chip interfaces
• Design for testability (DFT), fabrication tolerance, and temperature variation resilience
• Collaborate across layout, process integration, packaging, and characterization 

• M.S. or Ph.D. in Electrical Engineering, Computer Engineering, Systems Engineering, Optical Engineering, or a related field
• 3+ years of experience in integrated photonics
• Proficiency in WDM/DWDM design, link budget modeling, and system-level simulation
• Experience with EPIC co-design using tools such as Synopsys OptoDesigner and Cadence Spectre
• Strong understanding of high-speed circuit design and signal integrity principles, electronic-photonic interfaces, and clock data recovery (CDR)
• Experience with simulation tools; Lumerical MODE, FDTD, INTERCONNECT, COMSOL Multiphysics
• Hands-on experience with fiber-to-chip coupling, passive photonic design, and polarization management
• Competency in photonic layout tools (gdsfactory, Nazca, OptoDesigner) and Git-based workflows
• Programming proficiency in Python and Git version control
• Experience with test structure development and optical characterization equipment is a plus

People Over Processes. At Black Semiconductor, flexibility is key—we ensure work adapts to life, not the other way around. We champion work-life harmony, where careers are meaningful and enriching. Our processes are human-centric, allowing you to focus on what matters  
Let’s grow together. Your potential is our priority. We provide the autonomy to make a lasting impact and nurture your growth through a culture of continuous learning. We invest in your journey for professional and personal development   
Your Health and Future Matter. Your well-being is paramount. We offer a comprehensive benefits package with outstanding insurance, pension and virtual stock options for your mental, physical, and financial health. Your peace of mind is our priority - in the present and future   
We Live Openness. Collaboration and inclusivity are the cornerstones of our culture. We practice openness, fostering trust and respect. Individuality is our collective strength, fueling innovation and driving us forward   
    
We connect chips – and people.  We encourage qualified individuals from any background to apply. We foster an inclusive and supportive work environment that values collaboration, innovation, and growth. Join our team and be part of an organization dedicated to making a difference in the industry   
    
Can you picture yourself in this Role and our Company? Let’s connect!