The Senior GNSS Systems Engineer will lead the design and delivery of a custom satellite-based wireless positioning and timing transfer service. This role requires extensive expertise in GNSS engineering, satellite systems, and advanced positioning technologies. The engineer will be responsible for the GNSS subsystem architecture and will contribute to the TT&C subsystem. This position demands both theoretical knowledge and practical engineering skills to implement real-world satellite communication subsystems.

• Master's degree or higher in Electrical Engineering, Aerospace Engineering, Physics, or a closely related technical field, or a Bachelor's degree with exceptional demonstrated experience.
• Minimum 10 years of professional engineering experience in GNSS systems engineering, RF systems engineering, satellite payloads, TT&C design, or precision PNT system development.
• Demonstrated hands-on experience with at least two major GNSS constellations at the signal and systems engineering level.
• Proven experience designing or significantly contributing to precision time transfer systems with documented accuracy results at the nanosecond level or better.
• Demonstrated experience implementing Kalman filter-based navigation or timing solutions in real-world systems.
• Experience with RF systems engineering across S-Band and/or L-Band frequencies.
• Proven track record managing RF hardware development cycles with external suppliers.
• Experience designing a custom satellite-based PNT service from initial concept through operational deployment.
• Practical experience with optical time transfer systems and integration of optical and RF time references.
• Expertise in Alternative PNT system design and evaluation.
• Experience with GNSS security, including anti-spoofing detection and signal authentication.
• Background in precise orbit determination and its integration into GNSS timing error budgets.
• Familiarity with satellite communication standards and their application to TT&C.
• Proficiency in Python and/or MATLAB for signal simulation and automated test data analysis.

• Serve as the technical lead and subsystem owner for the spacecraft GNSS architecture.
• Drive all aspects of design from initial requirements definition through hardware acceptance.
• Lead the design and delivery of a custom satellite-based wireless positioning and timing transfer service.
• Contribute to the TT&C subsystem and serve as the technical authority on satellite-based PNT service design.
• Own the GNSS subsystem architecture end-to-end.

• Employees at Amazon are often offered comprehensive health benefits—including multiple medical plan options (no pre-existing condition exclusions, 100% covered in-network preventive care), dental and vision plans, a 24/7 medical advice line from day one, expert second-opinion services, and broad mental-health support with several free counseling sessions (including pediatric). Financial wellness typically includes a 401(k) with company match (up to 2%), Restricted Stock Units (equity), FSAs, an emergency savings program, product and partner discounts, and even college-savings and home-purchase programs. Overall, the package is designed to support employees and their families’ health, finances, and day-to-day life.