Senior RFIC Engineer

Senior RFIC Engineer

About the Company

MoRF is developing a silicon-compatible photonics platform that integrates high-speed, low-energy electro-optic performance into standard silicon manufacturing. This proprietary technology targets high-bandwidth optical modulation for data centers and telecom, with future use in quantum and RF photonics.

Job Description

Join MoRF as a Senior RFIC Engineer, one of our first hires, to lead the RF and high-speed electrical design of electro-optic modulator interfaces. This hands-on role involves designing, simulating, and validating RFICs and microwave structures that enable high-bandwidth, low-power traveling-wave modulators in close collaboration with photonic device, PIC layout, packaging, test, and foundry partners.

Responsibilities:

• Design RF/electrical structures for photonic modulators, including traveling-wave electrodes, impedance targets, velocity matching, RF loss, optical interaction length, and packaging parasitics.
• Execute RFIC and microwave simulation workflows covering S-parameters, impedance, bandwidth, gain, linearity, noise, power consumption, eye closure, and electro-optic link performance.
• Work closely with photonic device and layout engineers to translate RF/modulator design intent into manufacturable PIC and EIC layouts under foundry PDK and packaging constraints.
• Support high-speed characterization of RFICs, modulators, and EO test structures using VNAs, probe stations, oscilloscopes, BERTs, spectrum analyzers, and optical test setups.
• Correlate simulation results with measured RF and EO data, identify performance gaps, and drive design iterations toward production-ready modulator interfaces.
• Contribute to tape-out planning, test-chip definition, design reviews, documentation, and internal RF/electrical design methodology.

Requirements:

• Strong attention to detail and comfort working in an early-stage startup environment, owning problems end-to-end.
• M.Sc., Ph.D., or equivalent practical experience in EE, RF/microwave engineering, photonics, physics, or a related field.
• Hands-on experience with RFIC, analog, mixed-signal, or high-speed microwave circuit design.
• Strong understanding of transmission-line theory, impedance matching, S-parameters, RF loss, reflections, terminations, and high-speed signal integrity.
• Experience designing or co-designing high-bandwidth electro-optic modulator interfaces, high-speed drivers, SerDes front ends, or similar tens-of-GHz circuits.
• Proficiency with IC design environments.
• Experience with RF/microwave simulation tools such as ADS, HFSS, Momentum, EMX, Sonnet, or similar.
• Ability to work across RFIC, photonic device, layout, packaging, and test disciplines to translate evolving design intent into manufacturable, measurable hardware.

Preferred:

• Prior experience with traveling-wave modulators, silicon photonics, integrated photonics, RF photonics, or high-speed electro-optic PICs.
• Experience with CMOS, SiGe, or compound-semiconductor RFIC design for high-speed optical links.
• Familiarity with Mach-Zehnder modulators, phase shifters, ring modulators, photodiodes, waveguides, RF electrodes, and high-speed EO device metrics such as Vπ, EO bandwidth, insertion loss, and extinction ratio.
• Experience with driver-modulator co-design for NRZ, PAM4, coherent, or other high-speed optical modulation formats.
• Experience with RF/EO characterization, including VNA calibration, on-wafer probing, S-parameter de-embedding, EO bandwidth extraction, eye diagrams, and lab automation.
• Familiarity with compact-model extraction, Verilog-A, Spectre, ADS circuit models, or photonic circuit simulation.
• Experience with packaging-aware RF design, including RF launches, wire bonds, flip-chip transitions, CPW/microstrip routing, ground design, and thermal constraints.
• Python, MATLAB, or similar scripting experience for simulation automation, data analysis, and measurement workflows.
• Prior PIC, EIC, or RFIC tape-out experience.

Location: Weizmann Institute, Rehovot

Classification: Full time, on site

• Contact: [email protected] or [email protected] put code 9723 in subject