Senior Photonics Design, Layout & Modeling Engineer
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Job Location:
Louisville, KY - USA
Monthly Salary:
Not Disclosed
Posted on:
17 hours ago
Vacancies:
1 Vacancy
Job Summary
About the Team
Infleqtion is commercializing quantum technology building deployable systems where photonics is the engine for performance scale and reliability. Our photonics team develops integrated photonics (PICs) and related optical subsystems that enable chip-scale laser sources modulation routing and control for next-generation quantum products. We work closely with quantum system teams and external foundry/assembly partners to turn ambitious optical performance targets into manufacturable hardware.
About the Role
Infleqtion is seeking a Senior Photonics Design Layout & Modeling Engineer to design and deliver next-generation photonic integrated circuits and photonic subassemblies with an emphasis on simulation-driven design layout/verification and rapid experimental feedback.
In this role you will own portions of PIC design from concept through tapeout and testtranslating system requirements into photonic building blocks (passives couplers resonators filters modulators etc.) performing rigorous EM/photonic modeling completing layout and verification and partnering with the lab team to characterize devices and iterate quickly.
We are looking for a highly motivated individual who thrives in ambiguity enjoys working in a small dynamic team environment and has a passion for solving hard problems that lead to high-impact technological advances.
How you will drive impact
- Own and deliver high-performance photonic component designs and PIC layouts that meet aggressive specs (loss bandwidth phase stability power handling crosstalk yield).
- Build simulation-to-layout workflows that accelerate design cycles (PDK integration reusable parameterized cells verification automation).
- Drive tapeout readiness: coordination foundry alignment mask submission deliverables and post-tapeout debug loops.
- Close the loop with the lab: define test plans review data troubleshoot discrepancies and translate measurements into actionable design improvements.
- Collaborate across teams to ensure PIC-level design choices support system-level performance reliability and manufacturability.
Requirements
- M.S. or Ph.D. in Electrical Engineering Applied Physics Photonics or a related field (or equivalent practical experience).
- 4 years of relevant experience designing integrated photonics (Si SiN InP or related platforms) with demonstrated taped-out designs or comparable project outcomes.
- Advanced proficiency in photonics simulation and modeling (e.g. EME FDTD FEM BPM eigenmode circuit-level/Interconnect modeling) and comfort validating models against measurement.
- Hands-on experience with photonic layout and verification (PDK usage hierarchy management mask/tapeout deliverables).
- Proficiency with Python for design automation analysis and workflow tooling; comfort working with version control (Git).
- Practical experimental familiarity: common optical test equipment and techniques (fiber coupling/alignment insertion loss spectrum analysis polarization handling interferometric/phase-sensitive measurements basic RF/optical modulation measurements).
We Highly Value:
- Multiple tapeouts at commercial foundries including direct foundry interface and post-silicon debug.
- Experience with common photonics toolchains (e.g. Lumerical Synopsys COMSOL) and layout stacks (e.g. KLayout gdsfactory).
- Experience designing PIC-based laser subsystems (hybrid/heterogeneous gain integration) micro-combs narrow-linewidth sources or frequency control photonics.
- Familiarity with photonic packaging constraints (edge/vertical coupling alignment tolerances thermal effects) and how they feed back into PIC design.
- Strong communication and presentation skills; ability to work effectively with external partners (foundries packaging vendors).
Export Control / U.S. Person Requirement
This position involves access to export-controlled information and/or technology. To comply with U.S. Export Control laws and regulations candidates must be a U.S. Person (U.S. citizen U.S. lawful permanent resident).
Benefits
Benefits
- 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
- Employee Assistance Program
- Student Loan Repayment
- Equity Program
Required Experience:
Senior IC
Key Skills
- Electrical Engineering
- SOC
- PCB
- Warehouse Management
- Warehouse Experience
- CAD
- Creo
- SolidWorks
- Data Mining
- Digital design
- Mechanical Engineering
- Autocad
About Company
ColdQuanta is looking for enthusiastic individuals to join our teams, here in beautiful Boulder, Colorado; Madison, Wisconsin; and Oxford, UK. We work in a dynamic and collaborative environment and value each person's contribution whether technical or administrative. Our employees ... View more
