Amazon Sr Wireless Communication DSP Engineer Systems 

United States, Texas, Austin 

33994300

The Role:
Export Control Requirement:
Key job responsibilities
Design advanced L1/L2 algorithms and solutions for the Kuiper communication system.Design wireless communication L1/L2 procedures such as initial network entry, handover, beam management, power control, radio link monitoring, energy saving, Iot. Write ConOps (Concept of operations) document and/or product specifications.Work with ASIC development teams to build power/area efficient L1/L2 HW accelerators to be integrated into Kuiper SoCs.Produce (timing/frequency/beam) resilience requirements on various radio channels based on system level simulation of LEO satellite geometry (with full/partial or no GNSS information).Build reference code/implementation on verification platforms as proof of concept. Embedded software development experience is a big plus.Enhance/optimize exist procedures for new application scenarios with minimal additional implementation and complexityWork with integration teams to develop test solutions to verify integrated system (baseband + RF) with real-time waveform. Experience with software defined radios is highly preferred.

Master’s degree in Electrical Engineering, related discipline, or equivalent experience5+ years professional experience working in wireless communications at the system or implementation level.Deep understanding of Multiple access systems such as OFDMA, TDMA, CDMA, etc.In depth experience of modem L1/L2 algorithms development and architectures.Experience in the development of link and system level simulators using Matlab/Python/C++.Broad spectrum of knowledge to be able to understand end-to-end network system architecture from wireless physical layer all the way up to application end-point.Experience in test setup automation using Matlab/Python/Pearl.Experience with current software development processes and tools including Agile, TDD, BDD, CI, Git.Experience with leading technical initiatives and key deliverables.

PhD with emphasis in broadband wireless or wireline communication systemsIn depth understanding and use of communication theory and digital signal processing, particularly related to topics such as time-frequency synchronization and channel acquisition in previous experience.Deep understanding on 3GPP L1 physical layer and high layer protocols such as RLC, RRC, MAC.Broad spectrum of knowledge to be able to understand end-to-end network system architecture from wireless physical layer all the way up to application end-pointImplementation experience with wireless synchronization and parameter sensing techniques such as ranging/positioning based on signaling as well as low-power design expertiseExperience in test automation setup and scripting languages such as Python/Perl/MATLAB with Lab test equipment such as channel emulator, spectrum analyzers and Signal and network traffic generators.