Quantum Device Modeling Engineer

GlobalFoundries inc.; Essex Junction (VT); On-site; USD 98,000 - 176,000; Full time

Job summary

GlobalFoundries is seeking a Device Modeling Engineer to develop, validate, and deploy predictive models for superconducting, photonic, optoelectronic, and other emerging quantum-enabled devices. You will translate device physics into simulation-ready models and libraries for QPDKs and heterogeneous integration.

The role requires a strong physics foundation, 5+ years in device modeling, and hands-on experience with at least one non-CMOS device class. Traveling up to 10% is expected.

Qualifications

• Bachelor's degree in a relevant field and 5+ years of experience in device physics, device modeling, multiphysics simulation, parameter extraction, or characterization of non-CMOS devices.
• Strong foundation in semiconductor and solid-state device physics with ability to translate physical behavior into predictive models.
• Hands-on experience modeling non-CMOS device classes (e.g., Josephson-junction devices, SQUIDs, superconducting resonators or interconnects, waveguides, modulators, ring resonators, photodetectors, lasers, cryogenic structures).
• Experience correlating models with measured data and defining validation criteria across ranges.
• Proficiency in Python, MATLAB, or equivalent in Linux/Unix; experience with Verilog-A or SPICE subcircuits.
• Familiarity with multiple simulation environments (COMSOL, HFSS, Lumerical, Cadence, etc.).
• Ability to clearly communicate technical conclusions to cross-functional teams.
• Travel up to 10%.

Responsibilities

• Develop physics-based, behavioral, and compact models for superconducting and other emerging devices.
• Plan model-extraction and validation workflows using electrical, optical, RF, and cryogenic data.
• Correlate model behavior with measurements and identify limitations.
• Define device structures and parameters for scalable models across conditions.
• Implement and validate models in circuit and photonic environments with regression testing.
• Collaborate with cross-disciplinary teams to translate technologies into design capabilities.
• Prepare technical reports, application notes, and design reviews.

Skills

Device physics

Multiphysics simulation

Scientific programming

Python/MATLAB

Verilog-A/SPICE

Non-CMOS device modeling

Communication

Education

Bachelor's degree in Electrical Engineering, Applied Physics, Physics, Photonics, Microelectronics, Quantum Engineering, or related field

Master's degree or PhD (preferred)

Tools

COMSOL Multiphysics

Ansys HFSS

Ansys Lumerical

Cadence Virtuoso/Spectre

Python

MATLAB

Job description

About GlobalFoundriesGlobalFoundries is a leading full-service semiconductor foundry providing a unique combination of design, development, and fabrication services to some of the world's most inspired technology companies. With a global manufacturing footprint spanning three continents, GlobalFoundries makes possible the technologies and systems that transform industries and give customers the power to shape their markets. For more information, visit www.gf.com.Summary of RoleGlobalFoundries is seeking a Device Modeling Engineer to develop, validate, and deploy predictive models for superconducting, photonic, optoelectronic, and other emerging quantum-enabling devices. This role will translate fundamental device physics and measured electrical, optical, RF, and cryogenic behavior into simulation-ready models and libraries for Quantum Process Design Kits (QPDKs), heterogeneous integration, and customer design flows.Essential ResponsibilitiesDevelop physics-based, behavioral, and compact models for superconducting, photonic, optoelectronic, cryogenic passive, and other emerging non-CMOS devices.Plan and execute model-extraction and validation workflows using electrical, optical, RF/microwave, and cryogenic characterization data.Correlate model behavior with measured device data, multiphysics simulation, and fundamental device physics; identify model limitations and drive corrective actions.Define device structures, process parameters, and characterization vehicles required to extract and validate scalable models across geometry, temperature, frequency, optical wavelength, and operating conditions.Implement and qualify models within circuit, electromagnetic, and photonic simulation environments, including regression testing, convergence checks, documentation, and release readiness.Develop model libraries and design collateral for QPDKs and heterogeneous integration platforms, including validated symbols, parameter sets, interfaces, and recommended design-use conditions.Collaborate with device, process, integration, characterization, packaging, PDK, EDA, and circuit-design teams to translate emerging technologies into usable design capabilities.Communicate model assumptions, validation results, known limitations, and usage guidance through technical reports, application notes, and design reviews.Other ResponsibilitiesPerform all activities in a safe and responsible manner and support all Environmental, Health, Safety & Security requirements and programs.Work and collaborate on other projects and/or assignments as needed.Required QualificationsEducation - Bachelor's degree in Electrical Engineering, Applied Physics, Physics, Photonics, Microelectronics, Quantum Engineering, or a related field.Experience - Minimum 5 years of experience in device physics, device modeling, multiphysics simulation, parameter extraction, or characterization of superconducting, photonic, optoelectronic, RF/microwave, or other non-CMOS devices. Final experience requirements should be aligned with GF scoping guidelines for the approved job level.Strong foundation in semiconductor and solid-state device physics, with demonstrated ability to translate physical behavior into predictive simulation models.Hands-on experience modeling at least one non-CMOS device class, such as Josephson-junction devices, SQUIDs, superconducting resonators or interconnects, waveguides, modulators, ring resonators, photodetectors, lasers, or cryogenic passive structures.Experience correlating models with measured electrical, optical, RF/microwave, or cryogenic data and defining validation criteria across relevant operating ranges.Proficiency in scientific programming and data analysis using Python, MATLAB, or equivalent tools in a Linux/Unix environment.Experience with at least one relevant simulation environment, such as COMSOL Multiphysics, Ansys HFSS, Ansys Lumerical, Keysight ADS, Cadence Virtuoso/Spectre, or equivalent tools.Ability to communicate technical conclusions clearly to device, process, characterization, PDK, EDA, and design stakeholders.Travel - Up to 10%.Fluency in English - written and verbal.Preferred QualificationsMaster's degree or PhD in Electrical Engineering, Applied Physics, Physics, Photonics, Microelectronics, Quantum Engineering, or a related field.Experience modeling superconducting devices and structures, including Josephson junctions, SQUIDs, kinetic inductance, superconducting resonators, transmission lines, or qubit-adjacent circuit elements.Experience modeling photonic or optoelectronic elements, including waveguides, couplers, modulators, ring resonators, photodetectors, lasers, or optical interconnects.Experience with equivalent-circuit, compact, behavioral, reduced-order, electromagnetic, or multiphysics model development for design enablement.Knowledge of cryogenic material behavior, RF/microwave effects, optical loss and dispersion, variability, parasitics, thermal effects, and model convergence challenges.Experience with Verilog-A, SPICE subcircuits, photonic compact-model libraries, or other model formats used in circuit and system simulation.Experience supporting QPDK, PDK, model-library, or design-kit releases, including model QA, regression testing, version control, and customer-facing documentation.Familiarity with heterogeneous integration, advanced packaging, superconducting interposers, quantum interconnects, or co-simulation across electrical, optical, thermal, and electromagnetic domains.Project management skills, including the ability to innovate, execute solutions that matter, and navigate ambiguity.Strong written and verbal communication skills and strong planning and organizational skills.Expected Salary Range$98,000.00 - $176,000.00The exact Salary will be determined based on qualifications, experience and location.The role you are applying for may require you to obtain a US Department of Defense Security Clearance at some time during your employment. Acceptance of this role commits to applying for such if requested. Further, the applicant consents to being asked questions about their citizenship and background to assess the likelihood of obtaining a Security Clearance. The applicant also acknowledges that GlobalFoundries can only nominate and submit an application for a Security Clearance. The granting of a Security Clearance is at the sole discretion of the U.S. Government and the Department of Defense.If you need a reasonable accommodation for any part of the employment process, please contact us by email at [e-mail] and let us know the nature of your request and your contact information. Requests for accommodation will be considered on a case-by-case basis. Please note that only inquiries concerning a request for reasonable accommodation will be responded to from this email address.An offer with GlobalFoundries is conditioned upon the successful completion of pre-employment conditions, as applicable, and subject to applicable laws and regulations.GlobalFoundries is fully committed to equal opportunity in the workplace and believes that cultural diversity within the company enhances its business potential. GlobalFoundries goal of excellence in business necessitates the attraction and retention of highly qualified people. Artificial barriers and stereotypic biases detract from this objective and may be illegally discriminatory.All policies and processes which pertain to employees including recruitment, selection, training, utilization, promotion, compensation, benefits, extracurricular programs, and termination are created and implemented without regard to age, ethnicity, ancestry, color, marital status, medical condition, mental or physical disability, national origin, race, religion, political and/or third-party affiliation, sex, sexual orientation, gender identity or expression, veteran status, or any other characteristic or category specified by local, state or federal law