Integrated Photonics Staff Engineer

Infleqtion is at the forefront of the rapidly evolving quantum systems industry, pioneering the commercialization of Quantum Systems using Neutral Atoms - nature’s perfect sensors and qubits. This exciting field is poised for groundbreaking advancements, and we are driving innovative developments such as Optical Atomic Clock product, ‘Tiqker,’ Quantum Computing system, ‘Sqale,’ and advanced Quantum-RF and Quantum-Inertial sensing systems.

Our future quantum products will depend on CMOS foundry-based Silicon Photonics PICs for miniaturization, high-volume low-cost manufacturing, reliability, and ruggedization. These PIC-based devices and systems will revolutionize the industry by replacing the large and expensive lab-quality laser systems, precise frequency control, and atom-addressing methods currently used in quantum systems. To meet this vital requirement, we are expanding our integrated photonics team and seeking experienced engineers with hands-on skills in designing and testing Silicon Photonics PIC-based lasers and laser system components. Join us in shaping the future of quantum technology and creating products that will transform the world.

We seek an exceptional candidate with extensive experience in integrated photonics technologies, devices, and applications. This individual will play a crucial role as a founding member in the integrated photonics team at Infleqtion. The integrated photonics team will work directly with each quantum systems team to identify PIC opportunities and develop PIC based devices for use in prototype quantum systems. Additionally, the team will collaborate with suppliers and manufacturing partners to provide qualified PIC based devices for Infleqtion products.

Job description:

The Integrated Photonics Staff Engineer will play a major role in establishing the integrated photonics team at Infleqtion. This role encompasses a variety of responsibilities, some covered by other team members:

• Collaborate with Quantum Systems teams on Integrated Photonics opportunities
• Design photonic components (lasers, modulators, passive devices, etc.)
• Design and layout Silicon Photonics PICs
• Work with foundry partners for PIC fabrication
• Collaborate with III-V Gain Chip suppliers for gain elements
• Partner with packaging companies to integrate gain and package devices
• Conduct lab testing of PIC based devices, including hands-on and automated testing
• Characterize lasers, including DC measurements, frequency noise (FN) and relative intensity noise (RIN)
• Characterize modulated laser systems, measuring high-speed waveforms, and developing measurement setups
• Evaluate micro-combs and PIC-based devices for miniature frequency combs
• Assess PIC-based approaches for addressing atoms in quantum systems

• PhD in Electrical Engineering or Physics is preferred, with 5+ years’ experience developing PIC based devices for relevant systems (quantum, telecom, etc.). Candidates with different levels of experience will be considered for positions that match their qualifications.
• Advanced proficiency in photonics simulation techniques (EME, FDTD, FEM, BPM, etc.) and hands-on experience with commercial design/simulation and layout software (Lumerical, Synopsys, etc.)
• Ability to quickly grasp and navigate complex technical concepts
• Strong adaptability and comfort working within a dynamic, collaborative, matrixed environment
• Experience with quantum systems is advantageous

• Salary range: $140k to 190k/ per year

• 100% company-paid medical, dental, vision, short/long-term disability
• Employer-funded Health Savings Account
• Unlimited PTO
• 401(k) match
• Company-paid Life and AD&D Insurance
• Flexible Savings Account
• Paid FMLA, Maternity/Paternity Leave
• Relocation Assistance