Senior RF Engineer – Electromagnetic Design & Simulation

We are looking for a Senior RF Engineer to join our hardware team and own the electromagnetic design, simulation, and validation of on-chip and chip-scale RF structures that deliver control signals to quantum devices operating at cryogenic temperatures.

In this role, you will drive measurable improvements in RF performance and power efficiency, taking designs from first-principles analysis through simulation, fabrication, and cryogenic measurement. This position is ideal for an engineer who enjoys hands-on EM design, thrives on hard physics problems, and wants to work closely with device, fabrication, packaging, and systems teams.

Please include a cover letter with your resume (in one file) describing how you would be a great fit at Photonic and what attributes you could bring to our growing team.

WHAT WE NEED YOU TO DO

• Design and optimize on-chip and chip-scale RF structures, including transmission lines, resonators, and passive coupling structures
• Perform full-wave EM modeling (HFSS / CST / COMSOL or similar), including near-field analysis of fields delivered to target devices
• Improve RF power efficiency of control structures, balancing performance against fabrication constraints and yield
• Evaluate alternative architectures and heat-load tradeoffs at the chip, package, and cryogenic system level
• Own simulation-to-measurement correlation, including cryogenic characterization, and iterate designs accordingly
• Support impedance control, matching, and RF loss analysis at the chip and package level
• Lead design reviews and produce clear technical documentation

WHAT YOU BRING TO OUR TEAM

• M.Sc. or Ph.D. in Electrical Engineering, Physics, or related field with ~5+ years of RF or EM design experience (or B.Sc. with equivalent industry experience)
• Strong fundamentals in electromagnetics, transmission line theory, and impedance matching
• Deep hands-on experience with full-wave EM simulation (e.g., Ansys HFSS, CST, COMSOL)
• Experience designing RF structures on silicon, interposers, or thin-film substrates
• Hands-on RF measurement and characterization (VNA, spectrum analyzer, S-parameter de-embedding)
• Proven track record correlating simulation with measurement and closing the gap through design iteration
• Scripting in Python or MATLAB for simulation automation and data analysis
• Strong written and verbal communication skills

An exceptional candidate will bring:

• Experience with cryogenic or low-temperature RF systems
• Familiarity with superconducting or low-loss thin films and multilayer substrates
• Experience with quantum devices or spin/qubit control hardware
• Awareness of microfabrication processes and design-for-manufacturability
• Exposure to startup or research-driven environments

WHY YOU SHOULD WORK WITH US

• Get involved with a quantum startup company set to redefine computing
• Work closely with some of the brightest innovators in quantum technologies
• Enjoy a fast-paced and fun environment where you can try new things while solving innovative challenges every day
• Inclusive company culture
• Competitive salary, benefits (including life insurance, extended health, dental, long term disability, and a flexible spending account), and potential upside

The description above is what we think an ideal candidate would look like for this role. At Photonic, we understand that everyone has a different work and life journey. If you feel your experience is close to what we've described, but you might not meet all the requirements, please still apply! We are also committed to fostering, cultivating, and preserving a culture of equity, diversity, and inclusion. We embrace and encourage our employees’ differences, knowing that these very differences inspire innovation and build better teams. If there are any accommodations our team can make throughout our hiring process, please let us know.