Senior RF Hardware Engineer

Quantum Integrators; United States; On-site; USD 120,000 - 170,000; Full time

Job summary

Quantum Integrators is seeking an RF/GNSS engineer to design, integrate, and validate GNSS receivers and RF front-end solutions. You will lead product development from concept through production while collaborating with cross-functional teams.

Responsibilities include multi-constellation GNSS design, RF front-end architectures, antenna tuning, and comprehensive validation using VNAs and spectrum analyzers. You will contribute to performance optimization and smooth manufacturing transfer.

Qualifications

• Experience designing GNSS receivers across GPS, Galileo, GLONASS, and BeiDou.
• Strong RF front-end design including LNAs, filters, and matching networks.
• Hands-on RF measurements and validation using VNAs and scopes.
• Ability to lead cross-functional development from concept to production.

Responsibilities

• Design multi-constellation GNSS receivers for precise positioning.
• Develop RF front-end architectures and integration.
• Optimize sensitivity, tracking, and interference immunity.
• Support RTK, navigation, and timing solutions.
• Lead design validation and documentation.

Skills

GNSS receiver design

RF front-end design

Antenna tuning/matching

RF measurement & validation

Cross-functional collaboration

Tools

VNA

Spectrum Analyzer

Oscilloscope

Signal Generator

Job description

Responsible for the design, integration, validation, and lifecycle support of GNSS/GPS receiver, antenna, and RF front-end solutions. Lead product development from concept through production while collaborating with cross-functional teams.

Wireless communications expertise supports integrated positioning and connectivity solutions.

GNSS/GPS Receiver Design

• Design multi-constellation GNSS receivers supporting GPS, Galileo, GLONASS, and BeiDou.


• Develop RF front-end architectures including LNAs, filters, matching networks, RF switches, and timing circuits.


• Optimize sensitivity, tracking performance, positioning accuracy, and interference immunity.


• Support RTK, navigation, and timing solutions.


• Design and integrate patch, helical, ceramic, chip, active, and passive GNSS antennas.


• Perform antenna tuning, impedance matching, ground-plane optimization, and radiation pattern evaluation.


• Support coexistence with cellular and other wireless technologies.


• RF Design & Validation


• Design and analyze RF receiver circuits and subsystems.


• Perform RF simulations and measurements using VNAs, spectrum analyzers, oscilloscopes, and signal generators.


• Evaluate noise figure, gain, sensitivity, linearity, phase noise, and S-parameters.


• Document verification and test results.

Wireless Communications

• Support RF transceiver design including PAs, LNAs, filters, mixers, synthesizers, and VCOs.


• Contribute to cellular, Wi‑Fi, Bluetooth, ISM-band, and proprietary radio solutions.


• Evaluate GNSS and communications coexistence.


• Support manufacturing transfer and resolve production or field issues.


• Lead root-cause investigations and sustaining engineering activities.


• Provide technical guidance to technicians, designers, and junior engineers.


• Evaluate emerging GNSS, RF, and wireless technologies.