Sr. RF Comms Systems Integration and Test Engineer, Leo

Position: Sr. RF Comms Systems Integration and Test Engineer, Amazon Leo
Description

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 Sr. 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.

The Role:

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.

In this role you will:

- 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

Export Control Requirement:

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.

Basic Qualifications

- Bachelor's degree in Electrical Engineering or a related field, or experience working in electrical engineering field

- 7+ years professional experience working in L1/L2 or beamforming

- Experience with RF lab equipment, bring-up, test and integration activities

Preferred Qualifications

- 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,…