Jobs · Engineering · Colorado

RF / Electromagnetics Engineer

Infleqtion · Louisville, CO · 1 mo ago
Engineering$140k/yrFull-time

Job Responsibilities

  • Own simulation, design, build, and characterization of electrodes and other RF/EM structures supporting sensor and test system development
  • Develop free-space RF testbeds and controlled RF environments, including requirements definition, design support, build-out, validation, and continuous improvement
  • Define and execute EM measurement and calibration methods for radiated field strength, coupling, shielding, and measurement uncertainty
  • Develop calibration and measurement approaches for controlled-source and signal-of-opportunity field characterization
  • Contribute to RF architecture development across low-frequency through microwave operation, including signal-chain partitioning and interface definition
  • Contribute to local oscillator architecture, generation, and distribution approaches for lower- and higher-frequency operation
  • Evaluate LO leakage, spurious responses, phase noise, and coupling paths, and recommend mitigations
  • Build and maintain LO noise, signal-chain, and system-level link budgets to support design trades and performance analysis
  • Lead EM simulations to guide hardware design, measurement setup design, and interpretation of test results
  • Define RF performance metrics and comparison frameworks that support clear datasheet-style communication for novel sensing capabilities
  • Specify requirements for internal or external RF test environments and coordinate with vendors or subcontractors as needed
  • Collaborate with physicists, electrical engineers, mechanical engineers, software engineers, and external partners to integrate technical contributions
  • Execute hardware bring-up, calibration, troubleshooting, and root-cause analysis across prototype and integrated systems
  • Document designs, test methods, calibration procedures, and results to support technical reviews and future development
  • Communicate technical progress, trade studies, risks, and recommendations clearly to leadership and cross-functional teams
  • Support lab and field testing, proposal activities, customer demonstrations, and other program needs as required

Requirements

  • BS or MS in Electrical Engineering, Physics, Applied Physics, Electromagnetics, or a related field
  • 5-10+ years of experience in RF, microwave, electromagnetics, antenna, or advanced sensor hardware/system development
  • Demonstrated experience designing and characterizing electrodes, RF/EM structures, test hardware, or related components
  • Experience with free-space or radiated RF measurements, calibration methods, and controlled test environment development
  • Strong hands-on RF lab skills with instrumentation such as vector network analyzers, spectrum analyzers, signal generators, oscilloscopes, and power meters
  • Ability to take ownership of technical tasks, coordinate with internal teams and subcontractors, and communicate progress and risks effectively
  • Experience using EM simulation and scripting tools to support design, test, automation, and troubleshooting
  • U.S. citizenship preferred due to the nature of customers, programs, and potential export-controlled work

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