Senior High-Speed Signal Integrity Engineer

Quantum computing holds the promise of humanity's mastery over the natural world, but only if we can build a real quantum computer. PsiQuantum is on a mission to build the first real, useful quantum computers, capable of delivering the world-changing applications that the technology has long promised. We know that means we will need to build a system with roughly 1 million qubits that supports fault tolerant error correction within a scalable architecture, and a data center footprint. By harnessing the laws of quantum physics, quantum computers can provide exponential performance increases over today's most powerful supercomputers, offering the potential for extraordinary advances across a broad range of industries including climate, energy, healthcare, pharmaceuticals, finance, agriculture, transportation, materials design, and many more. PsiQuantum has determined the fastest path to delivering a useful quantum computer, years earlier than the rest of the industry. Our architecture is based on silicon photonics which gives us the ability to produce our components at Tier-1 semiconductor fabs such as GlobalFoundries where we leverage high-volume semiconductor manufacturing processes, the same processes that are already producing billions of chips for telecom and consumer electronics applications. We also benefit from the quantum mechanics reality that photons don't feel heat or electromagnetic interference, allowing us to take advantage of existing cryogenic cooling systems and industry standard fiber connectivity. In 2024, PsiQuantum announced two government-funded projects to support the build-out of our first Quantum Data Centers and utility-scale quantum computers in Brisbane, Australia and Chicago, Illinois. Both projects are backed by nations that understand quantum computing's potential impact and the need to scale this technology to unlock that potential. And we won't just be building the hardware, but also the fault tolerant quantum applications that will provide industry-transforming results. Quantum computing is not just an evolution of the decades-old advancement in compute power. It provides the key to mastering our future, not merely discovering it. The potential is enormous, and we have the plan to make it real. Come join us. There's much more work to be done and we are looking for exceptional talent to join us on this extraordinary journey Job Summary PsiQuantum seeks to hire an on-site Senior High-Speed Signal Integrity Engineer to join our team. The Senior High-Speed Signal Integrity Engineer will primarily focus on conducting electromagnetic analysis of novel electro-optic devices, electrical interconnects, and electro-optic packages. The role also involves some hands-on lab work, including collecting and analyzing data from devices, circuits and subsystems. Responsibilities Electromagnetic simulation Develop electromagnetic simulation models to support the design and synthesis of novel electro-optic devices and interconnect schemes. Analyze and present simulation results to guide future designs. A significant part of the role involves plotting and presenting data across various scenarios. Carefully document simulation results, with attention to assumptions, limitations, and the applicable range of validity. Create and maintain simulation project templates that can be shared with other high-speed engineers on the team. Signal integrity and power integrity simulations Analyze signal integrity of active devices co-packaged with high speed electronic drivers. A basic understanding of electrical amplifier is helpful. Data analysis and presentation Collaborate with engineers and scientists to deliver E&M simulation model results that can be updated rapidly through scripting allowing for parameter variation studies to aid in design optimization and innovation. Communication Work closely with cross-disciplinary teams, including experts in device physics, photonics and electronic IC design. Effective collaboration is essential for integrating inputs across SI, PI and electromagnetic simulation efforts. Experience / Qualifications Education & Experience Master's degree or Ph.D. in Electrical Engineering, Physics, or a related field. 5–10 years of industrial experience in microwave, RF, and signal integrity analysis; power integrity experience is a plus. Strong knowledge of microwave circuit theory, RF measurement techniques, S-parameters, and signal integrity concepts. Proficient in using electromagnetic and circuit simulation tools, preferably HFSS and Keysight ADS. Experience with COMSOL, Microwave Office, or Cadence is also acceptable, with the intent to adopt preferred tools. SIwave familiarity is a plus. Hands-on experience with microwave lab equipment such as VNAs, high-speed real-time and sampling oscilloscopes, and high-speed probes. Ability to collect and correlate measurement data with simulation results. Experience with electrical probing is a plus. Skilled in data analysis and scripting using tools like Python or MATLAB. Soft Skills Strong analytical and problem-solving abilities. Solid mathematical background for analyzing measured data and developing analytical or quasi-analytical circuit models. Comfortable working in a fast-paced environment with multiple concurrent tasks. Excellent written and verbal communication skills for technical documentation and presentations. Proactive, team-oriented mindset with a strong desire to learn and grow. Demonstrated ability to independently lead technical projects with minimal supervision. Preferred Qualifications Ability to develop scripts that accelerate simulation model setup, such as Python for automating ADS or HFSS workflows. Experience with statistical data analysis. Some familiarity with electro-optic devices. Eagerness to learn advanced high-speed analysis techniques. Willingness to spend 10–20% of time in the lab collecting and analyzing data for modeling purposes. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to recruiting@psiquantum.com. We are not accepting unsolicited resumes from employment agencies. ****[We are open to adjusting compensation to experience level]****** U.S. Base Pay Range: $150,000 — $172,000 USD Bay Area Pay Range: $180,000 — $200,000 USD #J-18808-Ljbffr