RF Comms Systems Integration and Test Engineer, Leo

RF Comms Systems Integration and Test Engineer, Amazon Leo

Job :  | Amazon Kuiper Manufacturing Enterprises LLC

Amazon Leo is an initiative to launch a constellation of Low Earth Orbit satellites that will provide low-latency, high-speed broadband connectivity to unserved and underserved communities around the world.

As a RF Comms Systems Integration and Test Engineer, you will work with a wide variety of functional groups and will be deeply involved in system integration and test of next generation Amazon Leo Satellites.

This is a unique opportunity to define a groundbreaking, high-throughput wireless solution with few legacy constraints meet with 3

GPP standards. The team works with customer requirements and wireless implementation teams to bring-up, integration and tuning, and debugging of advanced PHY/MAC and beamforming radio systems for state-of-the-art satellite communication system.

• As a technical contributor, be at the forefront of bring-up, integration, and debugging of advanced PHY/MAC and beamforming radio systems for state-of-the-art satellite communication system.
• Architect, document, and execute 3
  
  GPP based testing for satellite to ground networks. Work with vendors to define equipment requirements to achieve 3
  
  GPP conformance testing. Ability to adapt test plans daily based on capabilities of HW/SW delivered by the dev teams.
• Collaborate across disciplines—including PHY algorithms, RF design, digital beamforming and antenna, MAC, and firmware teams - to ensure seamless integration and best-in-class wireless performance.
• Understand Doppler pre and post compensation techniques with CFO/SFO in LEO comms systems and test them in the laboratory environment for 3
  
  GPP. Knowing channel emulators is a plus.
• Ability to trade link budget and verify RF line-up for payloads in RF and IF configurations.
• Characterize performance, analyze data, root-cause system-level issues, and ensure high product quality.
• Work with a team and take responsibility for power, clock, RF, air, network debugging in lab.
• Contribute development-test bring up procedures with Linux, Python, bash scripting etc.
• Experience with wireless synchronization and signal generators / spectrum analyzers to verify that time/frequency requirements are being met.
• Experience, knowledge and skills on wireless system design, integration, bring up and debug of wireless PHY and RF systems on SoC platforms.
• Strong understanding of OFDM and MIMO-based wireless systems across both baseband and RF domains, with a solid foundation in related communication theory and signal processing.
• Work in lab environment and stay in front of the setups for debugging with
• Work on scripting to change a SW/HW pieces incrementally and understand its effect on payload (via probing RF, IF, clock, channel quality messages) with help of Specan, siggen, scope, frequency counter, attenuators etc
• Work cross-functionally with RF, ASIC, SW, Comsys, Testbed teams and vendors to move forward in testing and integration

Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.

• Bachelor's degree
• 5+ years professional experience working in L1/L2 or beamforming
• Experience with RF lab equipment, bring-up, test and integration activities

• Experience with distributed systems at scale
• Masters/PhD with emphasis in wireless communication systems
• Proficiency with modeling in MATLAB and/or C/C++;
  Experience in test automation setup and scripting languages such as Python/Perl/Matlab
• Broad spectrum of knowledge to be able to understand end-to-end network system architecture from wireless RF and physical layer all the way up to application end-point
• Must have 3
  
  GPP NTN and ORAN knowledge to address conformance testing
• Experience with leading technical initiatives and key deliverables.
• Must have the ability to work in a small team and drive to go beyond expectations to deliver results
• Should have background in wireless LTE, 5G/6G, RLC, PDCP, RRC…