Photonic Simulation & Design Engineer - (m/f/d)
Linq Photonics develops high-performance photonic integrated circuits based on thin-film lithium niobate (TFLN) and silicon nitride (SiN). Our focus is on electro-optic modulation for demanding applications in quantum technologies, optical communications, and advanced sensing. A core challenge we tackle is the co-design of photonic and RF structures for bandwidths beyond 25 GHz.
We are looking for a Photonic Simulation & Design Engineer with a strong understanding of high-speed electro-optic devices. You will work on the full development cycle of high-bandwidth modulators and related components, from electromagnetic simulation to layout and experimental validation.
Key Responsibilities
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Design and simulate high-speed electro-optic components (e.g. traveling-wave modulators)
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Perform detailed electromagnetic simulations and verification using Lumerical and/or Tidy3D for optical design
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Model RF behaviour (impedance matching, velocity matching, S-parameters)
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Develop parametric layouts using gdsfactory and characterize devices in the lab (EO-Response)
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Translate simulation results into fabrication-ready layouts and support tape-outs​
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Contribute to the strategic roadmap of our technology
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Participate in building the team, by attracting and selecting world-class quantum engineers to work with you.
Key Qualifications
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Master's or PhD in Photonics, RF Engineering, Electrical Engineering, or a related technical field
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Proven Experience in integrated photonics and high-frequency electronics design
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Proficiency in photonic simulation tools (Lumerical, Comsol and/or Tidy3D)
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Solid understanding of RF concepts (RF-loss, impedance matching)
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Experience with high-speed electro-optic devices and PIC layout design (ideally with gdsfactory or similar tools)
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Strong Python skills
Preffered Qualifications
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Practical experience with high-speed measurement setups (VNA, RF probes, high-speed photodiodes)
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Experience with TFLN platforms, electro-optic modulation and packaging for high-speed devices
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Familiarity with RF simulation tools (HFSS, ADS, CST)
Who you are
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You are a builder. You are hands-on, enjoy discomfort and are not afraid to do things from scratch
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You deliver results with meticulous attention to details and a systematic approach to problem-solving
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You are autonomous, ambitious, organized, and enjoy driving a project
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You value transparency and open communication, collaborating and earning trust.
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You are eager to learn and grow. You thrive in an environment of high expectations, pushing boundaries to achieve breakthroughs.
What we offer
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Experience with state-of-the-art high-speed photonic hardware
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Direct ownership of device concepts from simulation to measurement
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Fast iteration cycles between design, fabrication, and lab validation
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Highly technical startup environment with real impact
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Opportunity to shape core technology at Linq Photonics
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Welcoming and inclusive team environment in a fast paced start-up