Senior High-Frequency Circuit Design Engineer (RF/Optical)

We are seeking a versatile and highly skilled Senior High‑Frequency Circuit Design Engineer to join our growing IC team.Responsibilities

• Design cutting‑edge, high‑frequency RF and broadband circuits for optical communications and high‑speed data transmission, including TIAs, Modulator Drivers, VCOs, LNAs, and broadband amplifiers.
• Drive transistor‑level circuit design, layout, and simulation with a specialized focus on bipolar (HBT) architectures at high and mm‑Wave frequencies.
• Apply a deep system‑level understanding of optical communication networks and complex RF applications to component design.
• Participate across the entire product lifecycle, including product definition, specification reviews, feasibility analysis, and architecture selection.
• Oversee top‑level physical verification and floor planning, as well as support post‑silicon validation and lab measurement activities.
• Utilize advanced CAD tools for rigorous design, modeling, and layout extraction.

• Electrical/Electronic Engineer with a BS degree and 5+ years of experience, an MS degree and 3+ years of experience, or a PhD degree and 2+ years of experience specifically in advanced high‑frequency technologies (e.g., SiGe BiCMOS, InP).
• Demonstrated, hands‑on experience in bipolar (HBT) circuit design at extremely high frequencies.
• Profound understanding of high‑speed/broadband RF and analog IC design methodologies for optical communication applications.
• Extensive experience with EDA tools such as Cadence, ADS, CST, EMPro, and EMX.
• Proficiency in top‑down CAD workflows and physical design considerations for high‑frequency routing.
• Knowledge of and experience with 3D EM modeling and simulation is highly preferred.
• Experience taking complex high‑frequency blocks from concept through tape‑out to successful silicon characterization.
• Excellent verbal and written communication skills.
• A PhD degree is highly preferable.

• Competitive salary.
• Unique ESOP.
• Opportunity to work directly with founders and shape the company’s mission.